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| | /* X Communication module for terminals which understand the X protocol.
Copyright (C) 1989, 1993-2015 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
/* New display code by Gerd Moellmann <gerd@gnu.org>. */
/* Xt features made by Fred Pierresteguy. */
#include <config.h>
#include <stdio.h>
#include "lisp.h"
#include "blockinput.h"
#include "syssignal.h"
/* This may include sys/types.h, and that somehow loses
if this is not done before the other system files. */
#include "xterm.h"
#include <X11/cursorfont.h>
/* Load sys/types.h if not already loaded.
In some systems loading it twice is suicidal. */
#ifndef makedev
#include <sys/types.h>
#endif /* makedev */
#include <sys/ioctl.h>
#include "systime.h"
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
/* Caused redefinition of DBL_DIG on Netbsd; seems not to be needed. */
/* #include <sys/param.h> */
#include "charset.h"
#include "character.h"
#include "coding.h"
#include "frame.h"
#include "dispextern.h"
#include "fontset.h"
#include "termhooks.h"
#include "termopts.h"
#include "termchar.h"
#include "emacs-icon.h"
#include "disptab.h"
#include "buffer.h"
#include "window.h"
#include "keyboard.h"
#include "intervals.h"
#include "process.h"
#include "atimer.h"
#include "keymap.h"
#include "font.h"
#include "xsettings.h"
#include "xgselect.h"
#include "sysselect.h"
#ifdef USE_X_TOOLKIT
#include <X11/Shell.h>
#endif
#include <unistd.h>
#ifdef USE_GTK
#include "gtkutil.h"
#ifdef HAVE_GTK3
#include <X11/Xproto.h>
#endif
#endif
#if defined (USE_LUCID) || defined (USE_MOTIF)
#include "../lwlib/xlwmenu.h"
#endif
#ifdef USE_X_TOOLKIT
#if !defined (NO_EDITRES)
#define HACK_EDITRES
extern void _XEditResCheckMessages (Widget, XtPointer, XEvent *, Boolean *);
#endif /* not NO_EDITRES */
/* Include toolkit specific headers for the scroll bar widget. */
#ifdef USE_TOOLKIT_SCROLL_BARS
#if defined USE_MOTIF
#include <Xm/Xm.h> /* For LESSTIF_VERSION */
#include <Xm/ScrollBar.h>
#else /* !USE_MOTIF i.e. use Xaw */
#ifdef HAVE_XAW3D
#include <X11/Xaw3d/Simple.h>
#include <X11/Xaw3d/Scrollbar.h>
#include <X11/Xaw3d/ThreeD.h>
#else /* !HAVE_XAW3D */
#include <X11/Xaw/Simple.h>
#include <X11/Xaw/Scrollbar.h>
#endif /* !HAVE_XAW3D */
#ifndef XtNpickTop
#define XtNpickTop "pickTop"
#endif /* !XtNpickTop */
#endif /* !USE_MOTIF */
#endif /* USE_TOOLKIT_SCROLL_BARS */
#endif /* USE_X_TOOLKIT */
#ifdef USE_X_TOOLKIT
#include "widget.h"
#ifndef XtNinitialState
#define XtNinitialState "initialState"
#endif
#endif
#include "bitmaps/gray.xbm"
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
/* Default to using XIM if available. */
#ifdef USE_XIM
bool use_xim = true;
#else
bool use_xim = false; /* configure --without-xim */
#endif
/* Non-zero means that a HELP_EVENT has been generated since Emacs
start. */
static bool any_help_event_p;
/* This is a chain of structures for all the X displays currently in
use. */
struct x_display_info *x_display_list;
#ifdef USE_X_TOOLKIT
/* The application context for Xt use. */
XtAppContext Xt_app_con;
static String Xt_default_resources[] = {0};
/* Non-zero means user is interacting with a toolkit scroll bar. */
static bool toolkit_scroll_bar_interaction;
#endif /* USE_X_TOOLKIT */
/* Non-zero timeout value means ignore next mouse click if it arrives
before that timeout elapses (i.e. as part of the same sequence of
events resulting from clicking on a frame to select it). */
static Time ignore_next_mouse_click_timeout;
/* Used locally within XTread_socket. */
static int x_noop_count;
static Lisp_Object Qalt, Qhyper, Qmeta, Qsuper, Qmodifier_value;
static Lisp_Object Qvendor_specific_keysyms;
static Lisp_Object Qlatin_1;
#ifdef USE_GTK
/* The name of the Emacs icon file. */
static Lisp_Object xg_default_icon_file;
/* Used in gtkutil.c. */
Lisp_Object Qx_gtk_map_stock;
#endif
/* Some functions take this as char *, not const char *. */
static char emacs_class[] = EMACS_CLASS;
enum xembed_info
{
XEMBED_MAPPED = 1 << 0
};
enum xembed_message
{
XEMBED_EMBEDDED_NOTIFY = 0,
XEMBED_WINDOW_ACTIVATE = 1,
XEMBED_WINDOW_DEACTIVATE = 2,
XEMBED_REQUEST_FOCUS = 3,
XEMBED_FOCUS_IN = 4,
XEMBED_FOCUS_OUT = 5,
XEMBED_FOCUS_NEXT = 6,
XEMBED_FOCUS_PREV = 7,
XEMBED_MODALITY_ON = 10,
XEMBED_MODALITY_OFF = 11,
XEMBED_REGISTER_ACCELERATOR = 12,
XEMBED_UNREGISTER_ACCELERATOR = 13,
XEMBED_ACTIVATE_ACCELERATOR = 14
};
static bool x_alloc_nearest_color_1 (Display *, Colormap, XColor *);
static void x_set_window_size_1 (struct frame *, int, int, int, bool);
static void x_raise_frame (struct frame *);
static void x_lower_frame (struct frame *);
static const XColor *x_color_cells (Display *, int *);
static int x_io_error_quitter (Display *);
static struct terminal *x_create_terminal (struct x_display_info *);
void x_delete_terminal (struct terminal *);
static void x_update_end (struct frame *);
static void XTframe_up_to_date (struct frame *);
static void x_clear_frame (struct frame *);
static _Noreturn void x_ins_del_lines (struct frame *, int, int);
static void frame_highlight (struct frame *);
static void frame_unhighlight (struct frame *);
static void x_new_focus_frame (struct x_display_info *, struct frame *);
static void x_focus_changed (int, int, struct x_display_info *,
struct frame *, struct input_event *);
static void XTframe_rehighlight (struct frame *);
static void x_frame_rehighlight (struct x_display_info *);
static void x_draw_hollow_cursor (struct window *, struct glyph_row *);
static void x_draw_bar_cursor (struct window *, struct glyph_row *, int,
enum text_cursor_kinds);
static void x_clip_to_row (struct window *, struct glyph_row *,
enum glyph_row_area, GC);
static void x_flush (struct frame *f);
static void x_update_begin (struct frame *);
static void x_update_window_begin (struct window *);
static struct scroll_bar *x_window_to_scroll_bar (Display *, Window);
static void x_scroll_bar_report_motion (struct frame **, Lisp_Object *,
enum scroll_bar_part *,
Lisp_Object *, Lisp_Object *,
Time *);
static int x_handle_net_wm_state (struct frame *, const XPropertyEvent *);
static void x_check_fullscreen (struct frame *);
static void x_check_expected_move (struct frame *, int, int);
static void x_sync_with_move (struct frame *, int, int, int);
static int handle_one_xevent (struct x_display_info *,
const XEvent *, int *,
struct input_event *);
#if ! (defined USE_X_TOOLKIT || defined USE_MOTIF)
static int x_dispatch_event (XEvent *, Display *);
#endif
/* Don't declare this _Noreturn because we want no
interference with debugging failing X calls. */
static void x_connection_closed (Display *, const char *);
static void x_wm_set_window_state (struct frame *, int);
static void x_wm_set_icon_pixmap (struct frame *, ptrdiff_t);
static void x_initialize (void);
/* Flush display of frame F. */
static void
x_flush (struct frame *f)
{
eassert (f && FRAME_X_P (f));
/* Don't call XFlush when it is not safe to redisplay; the X
connection may be broken. */
if (!NILP (Vinhibit_redisplay))
return;
block_input ();
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
}
/* Remove calls to XFlush by defining XFlush to an empty replacement.
Calls to XFlush should be unnecessary because the X output buffer
is flushed automatically as needed by calls to XPending,
XNextEvent, or XWindowEvent according to the XFlush man page.
XTread_socket calls XPending. Removing XFlush improves
performance. */
#define XFlush(DISPLAY) (void) 0
\f
/***********************************************************************
Debugging
***********************************************************************/
#if 0
/* This is a function useful for recording debugging information about
the sequence of occurrences in this file. */
struct record
{
char *locus;
int type;
};
struct record event_record[100];
int event_record_index;
void
record_event (char *locus, int type)
{
if (event_record_index == sizeof (event_record) / sizeof (struct record))
event_record_index = 0;
event_record[event_record_index].locus = locus;
event_record[event_record_index].type = type;
event_record_index++;
}
#endif /* 0 */
\f
/* Return the struct x_display_info corresponding to DPY. */
struct x_display_info *
x_display_info_for_display (Display *dpy)
{
struct x_display_info *dpyinfo;
for (dpyinfo = x_display_list; dpyinfo; dpyinfo = dpyinfo->next)
if (dpyinfo->display == dpy)
return dpyinfo;
return 0;
}
static Window
x_find_topmost_parent (struct frame *f)
{
struct x_output *x = f->output_data.x;
Window win = None, wi = x->parent_desc;
Display *dpy = FRAME_X_DISPLAY (f);
while (wi != FRAME_DISPLAY_INFO (f)->root_window)
{
Window root;
Window *children;
unsigned int nchildren;
win = wi;
XQueryTree (dpy, win, &root, &wi, &children, &nchildren);
XFree (children);
}
return win;
}
#define OPAQUE 0xffffffff
void
x_set_frame_alpha (struct frame *f)
{
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
Display *dpy = FRAME_X_DISPLAY (f);
Window win = FRAME_OUTER_WINDOW (f);
double alpha = 1.0;
double alpha_min = 1.0;
unsigned long opac;
Window parent;
if (dpyinfo->x_highlight_frame == f)
alpha = f->alpha[0];
else
alpha = f->alpha[1];
if (FLOATP (Vframe_alpha_lower_limit))
alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
else if (INTEGERP (Vframe_alpha_lower_limit))
alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
if (alpha < 0.0)
return;
else if (alpha > 1.0)
alpha = 1.0;
else if (0.0 <= alpha && alpha < alpha_min && alpha_min <= 1.0)
alpha = alpha_min;
opac = alpha * OPAQUE;
x_catch_errors (dpy);
/* If there is a parent from the window manager, put the property there
also, to work around broken window managers that fail to do that.
Do this unconditionally as this function is called on reparent when
alpha has not changed on the frame. */
parent = x_find_topmost_parent (f);
if (parent != None)
XChangeProperty (dpy, parent, dpyinfo->Xatom_net_wm_window_opacity,
XA_CARDINAL, 32, PropModeReplace,
(unsigned char *) &opac, 1L);
/* return unless necessary */
{
unsigned char *data;
Atom actual;
int rc, format;
unsigned long n, left;
rc = XGetWindowProperty (dpy, win, dpyinfo->Xatom_net_wm_window_opacity,
0L, 1L, False, XA_CARDINAL,
&actual, &format, &n, &left,
&data);
if (rc == Success && actual != None)
{
unsigned long value = *(unsigned long *)data;
XFree (data);
if (value == opac)
{
x_uncatch_errors ();
return;
}
}
}
XChangeProperty (dpy, win, dpyinfo->Xatom_net_wm_window_opacity,
XA_CARDINAL, 32, PropModeReplace,
(unsigned char *) &opac, 1L);
x_uncatch_errors ();
}
int
x_display_pixel_height (struct x_display_info *dpyinfo)
{
return HeightOfScreen (dpyinfo->screen);
}
int
x_display_pixel_width (struct x_display_info *dpyinfo)
{
return WidthOfScreen (dpyinfo->screen);
}
\f
/***********************************************************************
Starting and ending an update
***********************************************************************/
/* Start an update of frame F. This function is installed as a hook
for update_begin, i.e. it is called when update_begin is called.
This function is called prior to calls to x_update_window_begin for
each window being updated. Currently, there is nothing to do here
because all interesting stuff is done on a window basis. */
static void
x_update_begin (struct frame *f)
{
/* Nothing to do. */
}
/* Start update of window W. */
static void
x_update_window_begin (struct window *w)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
w->output_cursor = w->cursor;
block_input ();
if (f == hlinfo->mouse_face_mouse_frame)
{
/* Don't do highlighting for mouse motion during the update. */
hlinfo->mouse_face_defer = 1;
/* If F needs to be redrawn, simply forget about any prior mouse
highlighting. */
if (FRAME_GARBAGED_P (f))
hlinfo->mouse_face_window = Qnil;
}
unblock_input ();
}
/* Draw a vertical window border from (x,y0) to (x,y1) */
static void
x_draw_vertical_window_border (struct window *w, int x, int y0, int y1)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
struct face *face;
face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
if (face)
XSetForeground (FRAME_X_DISPLAY (f), f->output_data.x->normal_gc,
face->foreground);
XDrawLine (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
f->output_data.x->normal_gc, x, y0, x, y1);
}
/* Draw a window divider from (x0,y0) to (x1,y1) */
static void
x_draw_window_divider (struct window *w, int x0, int x1, int y0, int y1)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
struct face *face = FACE_FROM_ID (f, WINDOW_DIVIDER_FACE_ID);
struct face *face_first = FACE_FROM_ID (f, WINDOW_DIVIDER_FIRST_PIXEL_FACE_ID);
struct face *face_last = FACE_FROM_ID (f, WINDOW_DIVIDER_LAST_PIXEL_FACE_ID);
unsigned long color = face ? face->foreground : FRAME_FOREGROUND_PIXEL (f);
unsigned long color_first = (face_first
? face_first->foreground
: FRAME_FOREGROUND_PIXEL (f));
unsigned long color_last = (face_last
? face_last->foreground
: FRAME_FOREGROUND_PIXEL (f));
Display *display = FRAME_X_DISPLAY (f);
Window window = FRAME_X_WINDOW (f);
if (y1 - y0 > x1 - x0 && x1 - x0 > 2)
/* Vertical. */
{
XSetForeground (display, f->output_data.x->normal_gc, color_first);
XFillRectangle (display, window, f->output_data.x->normal_gc,
x0, y0, 1, y1 - y0);
XSetForeground (display, f->output_data.x->normal_gc, color);
XFillRectangle (display, window, f->output_data.x->normal_gc,
x0 + 1, y0, x1 - x0 - 2, y1 - y0);
XSetForeground (display, f->output_data.x->normal_gc, color_last);
XFillRectangle (display, window, f->output_data.x->normal_gc,
x1 - 1, y0, 1, y1 - y0);
}
else if (x1 - x0 > y1 - y0 && y1 - y0 > 3)
/* Horizontal. */
{
XSetForeground (display, f->output_data.x->normal_gc, color_first);
XFillRectangle (display, window, f->output_data.x->normal_gc,
x0, y0, x1 - x0, 1);
XSetForeground (display, f->output_data.x->normal_gc, color);
XFillRectangle (display, window, f->output_data.x->normal_gc,
x0, y0 + 1, x1 - x0, y1 - y0 - 2);
XSetForeground (display, f->output_data.x->normal_gc, color_last);
XFillRectangle (display, window, f->output_data.x->normal_gc,
x0, y1 - 1, x1 - x0, 1);
}
else
{
XSetForeground (display, f->output_data.x->normal_gc, color);
XFillRectangle (display, window, f->output_data.x->normal_gc,
x0, y0, x1 - x0, y1 - y0);
}
}
/* End update of window W.
Draw vertical borders between horizontally adjacent windows, and
display W's cursor if CURSOR_ON_P is non-zero.
MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
glyphs in mouse-face were overwritten. In that case we have to
make sure that the mouse-highlight is properly redrawn.
W may be a menu bar pseudo-window in case we don't have X toolkit
support. Such windows don't have a cursor, so don't display it
here. */
static void
x_update_window_end (struct window *w, bool cursor_on_p,
bool mouse_face_overwritten_p)
{
if (!w->pseudo_window_p)
{
block_input ();
if (cursor_on_p)
display_and_set_cursor (w, 1,
w->output_cursor.hpos, w->output_cursor.vpos,
w->output_cursor.x, w->output_cursor.y);
if (draw_window_fringes (w, 1))
{
if (WINDOW_RIGHT_DIVIDER_WIDTH (w))
x_draw_right_divider (w);
else
x_draw_vertical_border (w);
}
unblock_input ();
}
/* If a row with mouse-face was overwritten, arrange for
XTframe_up_to_date to redisplay the mouse highlight. */
if (mouse_face_overwritten_p)
{
Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (XFRAME (w->frame));
hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
hlinfo->mouse_face_window = Qnil;
}
}
/* End update of frame F. This function is installed as a hook in
update_end. */
static void
x_update_end (struct frame *f)
{
/* Mouse highlight may be displayed again. */
MOUSE_HL_INFO (f)->mouse_face_defer = 0;
#ifndef XFlush
block_input ();
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
#endif
}
/* This function is called from various places in xdisp.c
whenever a complete update has been performed. */
static void
XTframe_up_to_date (struct frame *f)
{
if (FRAME_X_P (f))
FRAME_MOUSE_UPDATE (f);
}
/* Clear under internal border if any for non-toolkit builds. */
#if !defined USE_X_TOOLKIT && !defined USE_GTK
void
x_clear_under_internal_border (struct frame *f)
{
if (FRAME_INTERNAL_BORDER_WIDTH (f) > 0)
{
Display *display = FRAME_X_DISPLAY (f);
Window window = FRAME_X_WINDOW (f);
int border = FRAME_INTERNAL_BORDER_WIDTH (f);
int width = FRAME_PIXEL_WIDTH (f);
int height = FRAME_PIXEL_HEIGHT (f);
int margin = FRAME_TOP_MARGIN_HEIGHT (f);
block_input ();
x_clear_area (display, window, 0, 0, border, height);
x_clear_area (display, window, 0, margin, width, border);
x_clear_area (display, window, width - border, 0, border, height);
x_clear_area (display, window, 0, height - border, width, border);
unblock_input ();
}
}
#endif
/* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
arrow bitmaps, or clear the fringes if no bitmaps are required
before DESIRED_ROW is made current. This function is called from
update_window_line only if it is known that there are differences
between bitmaps to be drawn between current row and DESIRED_ROW. */
static void
x_after_update_window_line (struct window *w, struct glyph_row *desired_row)
{
eassert (w);
if (!desired_row->mode_line_p && !w->pseudo_window_p)
desired_row->redraw_fringe_bitmaps_p = 1;
#ifdef USE_X_TOOLKIT
/* When a window has disappeared, make sure that no rest of
full-width rows stays visible in the internal border. Could
check here if updated window is the leftmost/rightmost window,
but I guess it's not worth doing since vertically split windows
are almost never used, internal border is rarely set, and the
overhead is very small. */
{
struct frame *f;
int width, height;
if (windows_or_buffers_changed
&& desired_row->full_width_p
&& (f = XFRAME (w->frame),
width = FRAME_INTERNAL_BORDER_WIDTH (f),
width != 0)
&& (height = desired_row->visible_height,
height > 0))
{
int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
block_input ();
x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
0, y, width, height);
x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
FRAME_PIXEL_WIDTH (f) - width,
y, width, height);
unblock_input ();
}
}
#endif
}
static void
x_draw_fringe_bitmap (struct window *w, struct glyph_row *row, struct draw_fringe_bitmap_params *p)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
Display *display = FRAME_X_DISPLAY (f);
Window window = FRAME_X_WINDOW (f);
GC gc = f->output_data.x->normal_gc;
struct face *face = p->face;
/* Must clip because of partially visible lines. */
x_clip_to_row (w, row, ANY_AREA, gc);
if (p->bx >= 0 && !p->overlay_p)
{
/* In case the same realized face is used for fringes and
for something displayed in the text (e.g. face `region' on
mono-displays, the fill style may have been changed to
FillSolid in x_draw_glyph_string_background. */
if (face->stipple)
XSetFillStyle (display, face->gc, FillOpaqueStippled);
else
XSetForeground (display, face->gc, face->background);
XFillRectangle (display, window, face->gc,
p->bx, p->by, p->nx, p->ny);
if (!face->stipple)
XSetForeground (display, face->gc, face->foreground);
}
if (p->which)
{
char *bits;
Pixmap pixmap, clipmask = (Pixmap) 0;
int depth = DefaultDepthOfScreen (FRAME_X_SCREEN (f));
XGCValues gcv;
if (p->wd > 8)
bits = (char *) (p->bits + p->dh);
else
bits = (char *) p->bits + p->dh;
/* Draw the bitmap. I believe these small pixmaps can be cached
by the server. */
pixmap = XCreatePixmapFromBitmapData (display, window, bits, p->wd, p->h,
(p->cursor_p
? (p->overlay_p ? face->background
: f->output_data.x->cursor_pixel)
: face->foreground),
face->background, depth);
if (p->overlay_p)
{
clipmask = XCreatePixmapFromBitmapData (display,
FRAME_DISPLAY_INFO (f)->root_window,
bits, p->wd, p->h,
1, 0, 1);
gcv.clip_mask = clipmask;
gcv.clip_x_origin = p->x;
gcv.clip_y_origin = p->y;
XChangeGC (display, gc, GCClipMask | GCClipXOrigin | GCClipYOrigin, &gcv);
}
XCopyArea (display, pixmap, window, gc, 0, 0,
p->wd, p->h, p->x, p->y);
XFreePixmap (display, pixmap);
if (p->overlay_p)
{
gcv.clip_mask = (Pixmap) 0;
XChangeGC (display, gc, GCClipMask, &gcv);
XFreePixmap (display, clipmask);
}
}
XSetClipMask (display, gc, None);
}
/***********************************************************************
Glyph display
***********************************************************************/
static void x_set_glyph_string_clipping (struct glyph_string *);
static void x_set_glyph_string_gc (struct glyph_string *);
static void x_draw_glyph_string_foreground (struct glyph_string *);
static void x_draw_composite_glyph_string_foreground (struct glyph_string *);
static void x_draw_glyph_string_box (struct glyph_string *);
static void x_draw_glyph_string (struct glyph_string *);
static _Noreturn void x_delete_glyphs (struct frame *, int);
static void x_compute_glyph_string_overhangs (struct glyph_string *);
static void x_set_cursor_gc (struct glyph_string *);
static void x_set_mode_line_face_gc (struct glyph_string *);
static void x_set_mouse_face_gc (struct glyph_string *);
static bool x_alloc_lighter_color (struct frame *, Display *, Colormap,
unsigned long *, double, int);
static void x_setup_relief_color (struct frame *, struct relief *,
double, int, unsigned long);
static void x_setup_relief_colors (struct glyph_string *);
static void x_draw_image_glyph_string (struct glyph_string *);
static void x_draw_image_relief (struct glyph_string *);
static void x_draw_image_foreground (struct glyph_string *);
static void x_draw_image_foreground_1 (struct glyph_string *, Pixmap);
static void x_clear_glyph_string_rect (struct glyph_string *, int,
int, int, int);
static void x_draw_relief_rect (struct frame *, int, int, int, int,
int, int, int, int, int, int,
XRectangle *);
static void x_draw_box_rect (struct glyph_string *, int, int, int, int,
int, int, int, XRectangle *);
static void x_scroll_bar_clear (struct frame *);
#ifdef GLYPH_DEBUG
static void x_check_font (struct frame *, struct font *);
#endif
/* Set S->gc to a suitable GC for drawing glyph string S in cursor
face. */
static void
x_set_cursor_gc (struct glyph_string *s)
{
if (s->font == FRAME_FONT (s->f)
&& s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
&& s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
&& !s->cmp)
s->gc = s->f->output_data.x->cursor_gc;
else
{
/* Cursor on non-default face: must merge. */
XGCValues xgcv;
unsigned long mask;
xgcv.background = s->f->output_data.x->cursor_pixel;
xgcv.foreground = s->face->background;
/* If the glyph would be invisible, try a different foreground. */
if (xgcv.foreground == xgcv.background)
xgcv.foreground = s->face->foreground;
if (xgcv.foreground == xgcv.background)
xgcv.foreground = s->f->output_data.x->cursor_foreground_pixel;
if (xgcv.foreground == xgcv.background)
xgcv.foreground = s->face->foreground;
/* Make sure the cursor is distinct from text in this face. */
if (xgcv.background == s->face->background
&& xgcv.foreground == s->face->foreground)
{
xgcv.background = s->face->foreground;
xgcv.foreground = s->face->background;
}
IF_DEBUG (x_check_font (s->f, s->font));
xgcv.graphics_exposures = False;
mask = GCForeground | GCBackground | GCGraphicsExposures;
if (FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc)
XChangeGC (s->display, FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc,
mask, &xgcv);
else
FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc
= XCreateGC (s->display, s->window, mask, &xgcv);
s->gc = FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc;
}
}
/* Set up S->gc of glyph string S for drawing text in mouse face. */
static void
x_set_mouse_face_gc (struct glyph_string *s)
{
int face_id;
struct face *face;
/* What face has to be used last for the mouse face? */
face_id = MOUSE_HL_INFO (s->f)->mouse_face_face_id;
face = FACE_FROM_ID (s->f, face_id);
if (face == NULL)
face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
if (s->first_glyph->type == CHAR_GLYPH)
face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch, -1, Qnil);
else
face_id = FACE_FOR_CHAR (s->f, face, 0, -1, Qnil);
s->face = FACE_FROM_ID (s->f, face_id);
PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
if (s->font == s->face->font)
s->gc = s->face->gc;
else
{
/* Otherwise construct scratch_cursor_gc with values from FACE
except for FONT. */
XGCValues xgcv;
unsigned long mask;
xgcv.background = s->face->background;
xgcv.foreground = s->face->foreground;
xgcv.graphics_exposures = False;
mask = GCForeground | GCBackground | GCGraphicsExposures;
if (FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc)
XChangeGC (s->display, FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc,
mask, &xgcv);
else
FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc
= XCreateGC (s->display, s->window, mask, &xgcv);
s->gc = FRAME_DISPLAY_INFO (s->f)->scratch_cursor_gc;
}
eassert (s->gc != 0);
}
/* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
Faces to use in the mode line have already been computed when the
matrix was built, so there isn't much to do, here. */
static void
x_set_mode_line_face_gc (struct glyph_string *s)
{
s->gc = s->face->gc;
}
/* Set S->gc of glyph string S for drawing that glyph string. Set
S->stippled_p to a non-zero value if the face of S has a stipple
pattern. */
static void
x_set_glyph_string_gc (struct glyph_string *s)
{
PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
if (s->hl == DRAW_NORMAL_TEXT)
{
s->gc = s->face->gc;
s->stippled_p = s->face->stipple != 0;
}
else if (s->hl == DRAW_INVERSE_VIDEO)
{
x_set_mode_line_face_gc (s);
s->stippled_p = s->face->stipple != 0;
}
else if (s->hl == DRAW_CURSOR)
{
x_set_cursor_gc (s);
s->stippled_p = 0;
}
else if (s->hl == DRAW_MOUSE_FACE)
{
x_set_mouse_face_gc (s);
s->stippled_p = s->face->stipple != 0;
}
else if (s->hl == DRAW_IMAGE_RAISED
|| s->hl == DRAW_IMAGE_SUNKEN)
{
s->gc = s->face->gc;
s->stippled_p = s->face->stipple != 0;
}
else
{
s->gc = s->face->gc;
s->stippled_p = s->face->stipple != 0;
}
/* GC must have been set. */
eassert (s->gc != 0);
}
/* Set clipping for output of glyph string S. S may be part of a mode
line or menu if we don't have X toolkit support. */
static void
x_set_glyph_string_clipping (struct glyph_string *s)
{
XRectangle *r = s->clip;
int n = get_glyph_string_clip_rects (s, r, 2);
if (n > 0)
XSetClipRectangles (s->display, s->gc, 0, 0, r, n, Unsorted);
s->num_clips = n;
}
/* Set SRC's clipping for output of glyph string DST. This is called
when we are drawing DST's left_overhang or right_overhang only in
the area of SRC. */
static void
x_set_glyph_string_clipping_exactly (struct glyph_string *src, struct glyph_string *dst)
{
XRectangle r;
r.x = src->x;
r.width = src->width;
r.y = src->y;
r.height = src->height;
dst->clip[0] = r;
dst->num_clips = 1;
XSetClipRectangles (dst->display, dst->gc, 0, 0, &r, 1, Unsorted);
}
/* RIF:
Compute left and right overhang of glyph string S. */
static void
x_compute_glyph_string_overhangs (struct glyph_string *s)
{
if (s->cmp == NULL
&& (s->first_glyph->type == CHAR_GLYPH
|| s->first_glyph->type == COMPOSITE_GLYPH))
{
struct font_metrics metrics;
if (s->first_glyph->type == CHAR_GLYPH)
{
unsigned *code = alloca (sizeof (unsigned) * s->nchars);
struct font *font = s->font;
int i;
for (i = 0; i < s->nchars; i++)
code[i] = (s->char2b[i].byte1 << 8) | s->char2b[i].byte2;
font->driver->text_extents (font, code, s->nchars, &metrics);
}
else
{
Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);
composition_gstring_width (gstring, s->cmp_from, s->cmp_to, &metrics);
}
s->right_overhang = (metrics.rbearing > metrics.width
? metrics.rbearing - metrics.width : 0);
s->left_overhang = metrics.lbearing < 0 ? - metrics.lbearing : 0;
}
else if (s->cmp)
{
s->right_overhang = s->cmp->rbearing - s->cmp->pixel_width;
s->left_overhang = - s->cmp->lbearing;
}
}
/* Fill rectangle X, Y, W, H with background color of glyph string S. */
static void
x_clear_glyph_string_rect (struct glyph_string *s, int x, int y, int w, int h)
{
XGCValues xgcv;
XGetGCValues (s->display, s->gc, GCForeground | GCBackground, &xgcv);
XSetForeground (s->display, s->gc, xgcv.background);
XFillRectangle (s->display, s->window, s->gc, x, y, w, h);
XSetForeground (s->display, s->gc, xgcv.foreground);
}
/* Draw the background of glyph_string S. If S->background_filled_p
is non-zero don't draw it. FORCE_P non-zero means draw the
background even if it wouldn't be drawn normally. This is used
when a string preceding S draws into the background of S, or S
contains the first component of a composition. */
static void
x_draw_glyph_string_background (struct glyph_string *s, bool force_p)
{
/* Nothing to do if background has already been drawn or if it
shouldn't be drawn in the first place. */
if (!s->background_filled_p)
{
int box_line_width = max (s->face->box_line_width, 0);
if (s->stippled_p)
{
/* Fill background with a stipple pattern. */
XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
XFillRectangle (s->display, s->window, s->gc, s->x,
s->y + box_line_width,
s->background_width,
s->height - 2 * box_line_width);
XSetFillStyle (s->display, s->gc, FillSolid);
s->background_filled_p = 1;
}
else if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
|| s->font_not_found_p
|| s->extends_to_end_of_line_p
|| force_p)
{
x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
s->background_width,
s->height - 2 * box_line_width);
s->background_filled_p = 1;
}
}
}
/* Draw the foreground of glyph string S. */
static void
x_draw_glyph_string_foreground (struct glyph_string *s)
{
int i, x;
/* If first glyph of S has a left box line, start drawing the text
of S to the right of that box line. */
if (s->face->box != FACE_NO_BOX
&& s->first_glyph->left_box_line_p)
x = s->x + eabs (s->face->box_line_width);
else
x = s->x;
/* Draw characters of S as rectangles if S's font could not be
loaded. */
if (s->font_not_found_p)
{
for (i = 0; i < s->nchars; ++i)
{
struct glyph *g = s->first_glyph + i;
XDrawRectangle (s->display, s->window,
s->gc, x, s->y, g->pixel_width - 1,
s->height - 1);
x += g->pixel_width;
}
}
else
{
struct font *font = s->font;
int boff = font->baseline_offset;
int y;
if (font->vertical_centering)
boff = VCENTER_BASELINE_OFFSET (font, s->f) - boff;
y = s->ybase - boff;
if (s->for_overlaps
|| (s->background_filled_p && s->hl != DRAW_CURSOR))
font->driver->draw (s, 0, s->nchars, x, y, 0);
else
font->driver->draw (s, 0, s->nchars, x, y, 1);
if (s->face->overstrike)
font->driver->draw (s, 0, s->nchars, x + 1, y, 0);
}
}
/* Draw the foreground of composite glyph string S. */
static void
x_draw_composite_glyph_string_foreground (struct glyph_string *s)
{
int i, j, x;
struct font *font = s->font;
/* If first glyph of S has a left box line, start drawing the text
of S to the right of that box line. */
if (s->face && s->face->box != FACE_NO_BOX
&& s->first_glyph->left_box_line_p)
x = s->x + eabs (s->face->box_line_width);
else
x = s->x;
/* S is a glyph string for a composition. S->cmp_from is the index
of the first character drawn for glyphs of this composition.
S->cmp_from == 0 means we are drawing the very first character of
this composition. */
/* Draw a rectangle for the composition if the font for the very
first character of the composition could not be loaded. */
if (s->font_not_found_p)
{
if (s->cmp_from == 0)
XDrawRectangle (s->display, s->window, s->gc, x, s->y,
s->width - 1, s->height - 1);
}
else if (! s->first_glyph->u.cmp.automatic)
{
int y = s->ybase;
for (i = 0, j = s->cmp_from; i < s->nchars; i++, j++)
/* TAB in a composition means display glyphs with padding
space on the left or right. */
if (COMPOSITION_GLYPH (s->cmp, j) != '\t')
{
int xx = x + s->cmp->offsets[j * 2];
int yy = y - s->cmp->offsets[j * 2 + 1];
font->driver->draw (s, j, j + 1, xx, yy, 0);
if (s->face->overstrike)
font->driver->draw (s, j, j + 1, xx + 1, yy, 0);
}
}
else
{
Lisp_Object gstring = composition_gstring_from_id (s->cmp_id);
Lisp_Object glyph;
int y = s->ybase;
int width = 0;
for (i = j = s->cmp_from; i < s->cmp_to; i++)
{
glyph = LGSTRING_GLYPH (gstring, i);
if (NILP (LGLYPH_ADJUSTMENT (glyph)))
width += LGLYPH_WIDTH (glyph);
else
{
int xoff, yoff, wadjust;
if (j < i)
{
font->driver->draw (s, j, i, x, y, 0);
if (s->face->overstrike)
font->driver->draw (s, j, i, x + 1, y, 0);
x += width;
}
xoff = LGLYPH_XOFF (glyph);
yoff = LGLYPH_YOFF (glyph);
wadjust = LGLYPH_WADJUST (glyph);
font->driver->draw (s, i, i + 1, x + xoff, y + yoff, 0);
if (s->face->overstrike)
font->driver->draw (s, i, i + 1, x + xoff + 1, y + yoff, 0);
x += wadjust;
j = i + 1;
width = 0;
}
}
if (j < i)
{
font->driver->draw (s, j, i, x, y, 0);
if (s->face->overstrike)
font->driver->draw (s, j, i, x + 1, y, 0);
}
}
}
/* Draw the foreground of glyph string S for glyphless characters. */
static void
x_draw_glyphless_glyph_string_foreground (struct glyph_string *s)
{
struct glyph *glyph = s->first_glyph;
XChar2b char2b[8];
int x, i, j;
/* If first glyph of S has a left box line, start drawing the text
of S to the right of that box line. */
if (s->face && s->face->box != FACE_NO_BOX
&& s->first_glyph->left_box_line_p)
x = s->x + eabs (s->face->box_line_width);
else
x = s->x;
s->char2b = char2b;
for (i = 0; i < s->nchars; i++, glyph++)
{
char buf[7], *str = NULL;
int len = glyph->u.glyphless.len;
if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_ACRONYM)
{
if (len > 0
&& CHAR_TABLE_P (Vglyphless_char_display)
&& (CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (Vglyphless_char_display))
>= 1))
{
Lisp_Object acronym
= (! glyph->u.glyphless.for_no_font
? CHAR_TABLE_REF (Vglyphless_char_display,
glyph->u.glyphless.ch)
: XCHAR_TABLE (Vglyphless_char_display)->extras[0]);
if (STRINGP (acronym))
str = SSDATA (acronym);
}
}
else if (glyph->u.glyphless.method == GLYPHLESS_DISPLAY_HEX_CODE)
{
sprintf (buf, "%0*X",
glyph->u.glyphless.ch < 0x10000 ? 4 : 6,
glyph->u.glyphless.ch);
str = buf;
}
if (str)
{
int upper_len = (len + 1) / 2;
unsigned code;
/* It is assured that all LEN characters in STR is ASCII. */
for (j = 0; j < len; j++)
{
code = s->font->driver->encode_char (s->font, str[j]);
STORE_XCHAR2B (char2b + j, code >> 8, code & 0xFF);
}
s->font->driver->draw (s, 0, upper_len,
x + glyph->slice.glyphless.upper_xoff,
s->ybase + glyph->slice.glyphless.upper_yoff,
0);
s->font->driver->draw (s, upper_len, len,
x + glyph->slice.glyphless.lower_xoff,
s->ybase + glyph->slice.glyphless.lower_yoff,
0);
}
if (glyph->u.glyphless.method != GLYPHLESS_DISPLAY_THIN_SPACE)
XDrawRectangle (s->display, s->window, s->gc,
x, s->ybase - glyph->ascent,
glyph->pixel_width - 1,
glyph->ascent + glyph->descent - 1);
x += glyph->pixel_width;
}
}
#ifdef USE_X_TOOLKIT
#ifdef USE_LUCID
/* Return the frame on which widget WIDGET is used.. Abort if frame
cannot be determined. */
static struct frame *
x_frame_of_widget (Widget widget)
{
struct x_display_info *dpyinfo;
Lisp_Object tail, frame;
struct frame *f;
dpyinfo = x_display_info_for_display (XtDisplay (widget));
/* Find the top-level shell of the widget. Note that this function
can be called when the widget is not yet realized, so XtWindow
(widget) == 0. That's the reason we can't simply use
x_any_window_to_frame. */
while (!XtIsTopLevelShell (widget))
widget = XtParent (widget);
/* Look for a frame with that top-level widget. Allocate the color
on that frame to get the right gamma correction value. */
FOR_EACH_FRAME (tail, frame)
{
f = XFRAME (frame);
if (FRAME_X_P (f)
&& f->output_data.nothing != 1
&& FRAME_DISPLAY_INFO (f) == dpyinfo
&& f->output_data.x->widget == widget)
return f;
}
emacs_abort ();
}
/* Allocate a color which is lighter or darker than *PIXEL by FACTOR
or DELTA. Try a color with RGB values multiplied by FACTOR first.
If this produces the same color as PIXEL, try a color where all RGB
values have DELTA added. Return the allocated color in *PIXEL.
DISPLAY is the X display, CMAP is the colormap to operate on.
Value is true if successful. */
bool
x_alloc_lighter_color_for_widget (Widget widget, Display *display, Colormap cmap,
unsigned long *pixel, double factor, int delta)
{
struct frame *f = x_frame_of_widget (widget);
return x_alloc_lighter_color (f, display, cmap, pixel, factor, delta);
}
#endif /* USE_LUCID */
/* Structure specifying which arguments should be passed by Xt to
cvt_string_to_pixel. We want the widget's screen and colormap. */
static XtConvertArgRec cvt_string_to_pixel_args[] =
{
{XtWidgetBaseOffset, (XtPointer) XtOffset (Widget, core.screen),
sizeof (Screen *)},
{XtWidgetBaseOffset, (XtPointer) XtOffset (Widget, core.colormap),
sizeof (Colormap)}
};
/* The address of this variable is returned by
cvt_string_to_pixel. */
static Pixel cvt_string_to_pixel_value;
/* Convert a color name to a pixel color.
DPY is the display we are working on.
ARGS is an array of *NARGS XrmValue structures holding additional
information about the widget for which the conversion takes place.
The contents of this array are determined by the specification
in cvt_string_to_pixel_args.
FROM is a pointer to an XrmValue which points to the color name to
convert. TO is an XrmValue in which to return the pixel color.
CLOSURE_RET is a pointer to user-data, in which we record if
we allocated the color or not.
Value is True if successful, False otherwise. */
static Boolean
cvt_string_to_pixel (Display *dpy, XrmValue *args, Cardinal *nargs,
XrmValue *from, XrmValue *to,
XtPointer *closure_ret)
{
Screen *screen;
Colormap cmap;
Pixel pixel;
String color_name;
XColor color;
if (*nargs != 2)
{
XtAppWarningMsg (XtDisplayToApplicationContext (dpy),
"wrongParameters", "cvt_string_to_pixel",
"XtToolkitError",
"Screen and colormap args required", NULL, NULL);
return False;
}
screen = *(Screen **) args[0].addr;
cmap = *(Colormap *) args[1].addr;
color_name = (String) from->addr;
if (strcmp (color_name, XtDefaultBackground) == 0)
{
*closure_ret = (XtPointer) False;
pixel = WhitePixelOfScreen (screen);
}
else if (strcmp (color_name, XtDefaultForeground) == 0)
{
*closure_ret = (XtPointer) False;
pixel = BlackPixelOfScreen (screen);
}
else if (XParseColor (dpy, cmap, color_name, &color)
&& x_alloc_nearest_color_1 (dpy, cmap, &color))
{
pixel = color.pixel;
*closure_ret = (XtPointer) True;
}
else
{
String params[1];
Cardinal nparams = 1;
params[0] = color_name;
XtAppWarningMsg (XtDisplayToApplicationContext (dpy),
"badValue", "cvt_string_to_pixel",
"XtToolkitError", "Invalid color `%s'",
params, &nparams);
return False;
}
if (to->addr != NULL)
{
if (to->size < sizeof (Pixel))
{
to->size = sizeof (Pixel);
return False;
}
*(Pixel *) to->addr = pixel;
}
else
{
cvt_string_to_pixel_value = pixel;
to->addr = (XtPointer) &cvt_string_to_pixel_value;
}
to->size = sizeof (Pixel);
return True;
}
/* Free a pixel color which was previously allocated via
cvt_string_to_pixel. This is registered as the destructor
for this type of resource via XtSetTypeConverter.
APP is the application context in which we work.
TO is a pointer to an XrmValue holding the color to free.
CLOSURE is the value we stored in CLOSURE_RET for this color
in cvt_string_to_pixel.
ARGS and NARGS are like for cvt_string_to_pixel. */
static void
cvt_pixel_dtor (XtAppContext app, XrmValuePtr to, XtPointer closure, XrmValuePtr args,
Cardinal *nargs)
{
if (*nargs != 2)
{
XtAppWarningMsg (app, "wrongParameters", "cvt_pixel_dtor",
"XtToolkitError",
"Screen and colormap arguments required",
NULL, NULL);
}
else if (closure != NULL)
{
/* We did allocate the pixel, so free it. */
Screen *screen = *(Screen **) args[0].addr;
Colormap cmap = *(Colormap *) args[1].addr;
x_free_dpy_colors (DisplayOfScreen (screen), screen, cmap,
(Pixel *) to->addr, 1);
}
}
#endif /* USE_X_TOOLKIT */
/* Value is an array of XColor structures for the contents of the
color map of display DPY. Set *NCELLS to the size of the array.
Note that this probably shouldn't be called for large color maps,
say a 24-bit TrueColor map. */
static const XColor *
x_color_cells (Display *dpy, int *ncells)
{
struct x_display_info *dpyinfo = x_display_info_for_display (dpy);
if (dpyinfo->color_cells == NULL)
{
Screen *screen = dpyinfo->screen;
int ncolor_cells = XDisplayCells (dpy, XScreenNumberOfScreen (screen));
int i;
dpyinfo->color_cells = xnmalloc (ncolor_cells,
sizeof *dpyinfo->color_cells);
dpyinfo->ncolor_cells = ncolor_cells;
for (i = 0; i < ncolor_cells; ++i)
dpyinfo->color_cells[i].pixel = i;
XQueryColors (dpy, dpyinfo->cmap,
dpyinfo->color_cells, ncolor_cells);
}
*ncells = dpyinfo->ncolor_cells;
return dpyinfo->color_cells;
}
/* On frame F, translate pixel colors to RGB values for the NCOLORS
colors in COLORS. Use cached information, if available. */
void
x_query_colors (struct frame *f, XColor *colors, int ncolors)
{
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
if (dpyinfo->color_cells)
{
int i;
for (i = 0; i < ncolors; ++i)
{
unsigned long pixel = colors[i].pixel;
eassert (pixel < dpyinfo->ncolor_cells);
eassert (dpyinfo->color_cells[pixel].pixel == pixel);
colors[i] = dpyinfo->color_cells[pixel];
}
}
else
XQueryColors (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), colors, ncolors);
}
/* On frame F, translate pixel color to RGB values for the color in
COLOR. Use cached information, if available. */
void
x_query_color (struct frame *f, XColor *color)
{
x_query_colors (f, color, 1);
}
/* Allocate the color COLOR->pixel on DISPLAY, colormap CMAP. If an
exact match can't be allocated, try the nearest color available.
Value is true if successful. Set *COLOR to the color
allocated. */
static bool
x_alloc_nearest_color_1 (Display *dpy, Colormap cmap, XColor *color)
{
bool rc;
rc = XAllocColor (dpy, cmap, color) != 0;
if (rc == 0)
{
/* If we got to this point, the colormap is full, so we're going
to try to get the next closest color. The algorithm used is
a least-squares matching, which is what X uses for closest
color matching with StaticColor visuals. */
int nearest, i;
int max_color_delta = 255;
int max_delta = 3 * max_color_delta;
int nearest_delta = max_delta + 1;
int ncells;
const XColor *cells = x_color_cells (dpy, &ncells);
for (nearest = i = 0; i < ncells; ++i)
{
int dred = (color->red >> 8) - (cells[i].red >> 8);
int dgreen = (color->green >> 8) - (cells[i].green >> 8);
int dblue = (color->blue >> 8) - (cells[i].blue >> 8);
int delta = dred * dred + dgreen * dgreen + dblue * dblue;
if (delta < nearest_delta)
{
nearest = i;
nearest_delta = delta;
}
}
color->red = cells[nearest].red;
color->green = cells[nearest].green;
color->blue = cells[nearest].blue;
rc = XAllocColor (dpy, cmap, color) != 0;
}
else
{
/* If allocation succeeded, and the allocated pixel color is not
equal to a cached pixel color recorded earlier, there was a
change in the colormap, so clear the color cache. */
struct x_display_info *dpyinfo = x_display_info_for_display (dpy);
XColor *cached_color;
if (dpyinfo->color_cells
&& (cached_color = &dpyinfo->color_cells[color->pixel],
(cached_color->red != color->red
|| cached_color->blue != color->blue
|| cached_color->green != color->green)))
{
xfree (dpyinfo->color_cells);
dpyinfo->color_cells = NULL;
dpyinfo->ncolor_cells = 0;
}
}
#ifdef DEBUG_X_COLORS
if (rc)
register_color (color->pixel);
#endif /* DEBUG_X_COLORS */
return rc;
}
/* Allocate the color COLOR->pixel on frame F, colormap CMAP. If an
exact match can't be allocated, try the nearest color available.
Value is true if successful. Set *COLOR to the color
allocated. */
bool
x_alloc_nearest_color (struct frame *f, Colormap cmap, XColor *color)
{
gamma_correct (f, color);
return x_alloc_nearest_color_1 (FRAME_X_DISPLAY (f), cmap, color);
}
/* Allocate color PIXEL on frame F. PIXEL must already be allocated.
It's necessary to do this instead of just using PIXEL directly to
get color reference counts right. */
unsigned long
x_copy_color (struct frame *f, unsigned long pixel)
{
XColor color;
color.pixel = pixel;
block_input ();
x_query_color (f, &color);
XAllocColor (FRAME_X_DISPLAY (f), FRAME_X_COLORMAP (f), &color);
unblock_input ();
#ifdef DEBUG_X_COLORS
register_color (pixel);
#endif
return color.pixel;
}
/* Brightness beyond which a color won't have its highlight brightness
boosted.
Nominally, highlight colors for `3d' faces are calculated by
brightening an object's color by a constant scale factor, but this
doesn't yield good results for dark colors, so for colors who's
brightness is less than this value (on a scale of 0-65535) have an
use an additional additive factor.
The value here is set so that the default menu-bar/mode-line color
(grey75) will not have its highlights changed at all. */
#define HIGHLIGHT_COLOR_DARK_BOOST_LIMIT 48000
/* Allocate a color which is lighter or darker than *PIXEL by FACTOR
or DELTA. Try a color with RGB values multiplied by FACTOR first.
If this produces the same color as PIXEL, try a color where all RGB
values have DELTA added. Return the allocated color in *PIXEL.
DISPLAY is the X display, CMAP is the colormap to operate on.
Value is non-zero if successful. */
static bool
x_alloc_lighter_color (struct frame *f, Display *display, Colormap cmap,
unsigned long *pixel, double factor, int delta)
{
XColor color, new;
long bright;
bool success_p;
/* Get RGB color values. */
color.pixel = *pixel;
x_query_color (f, &color);
/* Change RGB values by specified FACTOR. Avoid overflow! */
eassert (factor >= 0);
new.red = min (0xffff, factor * color.red);
new.green = min (0xffff, factor * color.green);
new.blue = min (0xffff, factor * color.blue);
/* Calculate brightness of COLOR. */
bright = (2 * color.red + 3 * color.green + color.blue) / 6;
/* We only boost colors that are darker than
HIGHLIGHT_COLOR_DARK_BOOST_LIMIT. */
if (bright < HIGHLIGHT_COLOR_DARK_BOOST_LIMIT)
/* Make an additive adjustment to NEW, because it's dark enough so
that scaling by FACTOR alone isn't enough. */
{
/* How far below the limit this color is (0 - 1, 1 being darker). */
double dimness = 1 - (double)bright / HIGHLIGHT_COLOR_DARK_BOOST_LIMIT;
/* The additive adjustment. */
int min_delta = delta * dimness * factor / 2;
if (factor < 1)
{
new.red = max (0, new.red - min_delta);
new.green = max (0, new.green - min_delta);
new.blue = max (0, new.blue - min_delta);
}
else
{
new.red = min (0xffff, min_delta + new.red);
new.green = min (0xffff, min_delta + new.green);
new.blue = min (0xffff, min_delta + new.blue);
}
}
/* Try to allocate the color. */
success_p = x_alloc_nearest_color (f, cmap, &new);
if (success_p)
{
if (new.pixel == *pixel)
{
/* If we end up with the same color as before, try adding
delta to the RGB values. */
x_free_colors (f, &new.pixel, 1);
new.red = min (0xffff, delta + color.red);
new.green = min (0xffff, delta + color.green);
new.blue = min (0xffff, delta + color.blue);
success_p = x_alloc_nearest_color (f, cmap, &new);
}
else
success_p = 1;
*pixel = new.pixel;
}
return success_p;
}
/* Set up the foreground color for drawing relief lines of glyph
string S. RELIEF is a pointer to a struct relief containing the GC
with which lines will be drawn. Use a color that is FACTOR or
DELTA lighter or darker than the relief's background which is found
in S->f->output_data.x->relief_background. If such a color cannot
be allocated, use DEFAULT_PIXEL, instead. */
static void
x_setup_relief_color (struct frame *f, struct relief *relief, double factor,
int delta, unsigned long default_pixel)
{
XGCValues xgcv;
struct x_output *di = f->output_data.x;
unsigned long mask = GCForeground | GCLineWidth | GCGraphicsExposures;
unsigned long pixel;
unsigned long background = di->relief_background;
Colormap cmap = FRAME_X_COLORMAP (f);
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
Display *dpy = FRAME_X_DISPLAY (f);
xgcv.graphics_exposures = False;
xgcv.line_width = 1;
/* Free previously allocated color. The color cell will be reused
when it has been freed as many times as it was allocated, so this
doesn't affect faces using the same colors. */
if (relief->gc && relief->pixel != -1)
{
x_free_colors (f, &relief->pixel, 1);
relief->pixel = -1;
}
/* Allocate new color. */
xgcv.foreground = default_pixel;
pixel = background;
if (dpyinfo->n_planes != 1
&& x_alloc_lighter_color (f, dpy, cmap, &pixel, factor, delta))
xgcv.foreground = relief->pixel = pixel;
if (relief->gc == 0)
{
xgcv.stipple = dpyinfo->gray;
mask |= GCStipple;
relief->gc = XCreateGC (dpy, FRAME_X_WINDOW (f), mask, &xgcv);
}
else
XChangeGC (dpy, relief->gc, mask, &xgcv);
}
/* Set up colors for the relief lines around glyph string S. */
static void
x_setup_relief_colors (struct glyph_string *s)
{
struct x_output *di = s->f->output_data.x;
unsigned long color;
if (s->face->use_box_color_for_shadows_p)
color = s->face->box_color;
else if (s->first_glyph->type == IMAGE_GLYPH
&& s->img->pixmap
&& !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
color = IMAGE_BACKGROUND (s->img, s->f, 0);
else
{
XGCValues xgcv;
/* Get the background color of the face. */
XGetGCValues (s->display, s->gc, GCBackground, &xgcv);
color = xgcv.background;
}
if (di->white_relief.gc == 0
|| color != di->relief_background)
{
di->relief_background = color;
x_setup_relief_color (s->f, &di->white_relief, 1.2, 0x8000,
WHITE_PIX_DEFAULT (s->f));
x_setup_relief_color (s->f, &di->black_relief, 0.6, 0x4000,
BLACK_PIX_DEFAULT (s->f));
}
}
/* Draw a relief on frame F inside the rectangle given by LEFT_X,
TOP_Y, RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the relief
to draw, it must be >= 0. RAISED_P non-zero means draw a raised
relief. LEFT_P non-zero means draw a relief on the left side of
the rectangle. RIGHT_P non-zero means draw a relief on the right
side of the rectangle. CLIP_RECT is the clipping rectangle to use
when drawing. */
static void
x_draw_relief_rect (struct frame *f,
int left_x, int top_y, int right_x, int bottom_y, int width,
int raised_p, int top_p, int bot_p, int left_p, int right_p,
XRectangle *clip_rect)
{
Display *dpy = FRAME_X_DISPLAY (f);
Window window = FRAME_X_WINDOW (f);
int i;
GC gc;
if (raised_p)
gc = f->output_data.x->white_relief.gc;
else
gc = f->output_data.x->black_relief.gc;
XSetClipRectangles (dpy, gc, 0, 0, clip_rect, 1, Unsorted);
/* This code is more complicated than it has to be, because of two
minor hacks to make the boxes look nicer: (i) if width > 1, draw
the outermost line using the black relief. (ii) Omit the four
corner pixels. */
/* Top. */
if (top_p)
{
if (width == 1)
XDrawLine (dpy, window, gc,
left_x + (left_p ? 1 : 0), top_y,
right_x + (right_p ? 0 : 1), top_y);
for (i = 1; i < width; ++i)
XDrawLine (dpy, window, gc,
left_x + i * left_p, top_y + i,
right_x + 1 - i * right_p, top_y + i);
}
/* Left. */
if (left_p)
{
if (width == 1)
XDrawLine (dpy, window, gc, left_x, top_y + 1, left_x, bottom_y);
XClearArea (dpy, window, left_x, top_y, 1, 1, False);
XClearArea (dpy, window, left_x, bottom_y, 1, 1, False);
for (i = (width > 1 ? 1 : 0); i < width; ++i)
XDrawLine (dpy, window, gc,
left_x + i, top_y + (i + 1) * top_p,
left_x + i, bottom_y + 1 - (i + 1) * bot_p);
}
XSetClipMask (dpy, gc, None);
if (raised_p)
gc = f->output_data.x->black_relief.gc;
else
gc = f->output_data.x->white_relief.gc;
XSetClipRectangles (dpy, gc, 0, 0, clip_rect, 1, Unsorted);
if (width > 1)
{
/* Outermost top line. */
if (top_p)
XDrawLine (dpy, window, gc,
left_x + (left_p ? 1 : 0), top_y,
right_x + (right_p ? 0 : 1), top_y);
/* Outermost left line. */
if (left_p)
XDrawLine (dpy, window, gc, left_x, top_y + 1, left_x, bottom_y);
}
/* Bottom. */
if (bot_p)
{
XDrawLine (dpy, window, gc,
left_x + (left_p ? 1 : 0), bottom_y,
right_x + (right_p ? 0 : 1), bottom_y);
for (i = 1; i < width; ++i)
XDrawLine (dpy, window, gc,
left_x + i * left_p, bottom_y - i,
right_x + 1 - i * right_p, bottom_y - i);
}
/* Right. */
if (right_p)
{
XClearArea (dpy, window, right_x, top_y, 1, 1, False);
XClearArea (dpy, window, right_x, bottom_y, 1, 1, False);
for (i = 0; i < width; ++i)
XDrawLine (dpy, window, gc,
right_x - i, top_y + (i + 1) * top_p,
right_x - i, bottom_y + 1 - (i + 1) * bot_p);
}
XSetClipMask (dpy, gc, None);
}
/* Draw a box on frame F inside the rectangle given by LEFT_X, TOP_Y,
RIGHT_X, and BOTTOM_Y. WIDTH is the thickness of the lines to
draw, it must be >= 0. LEFT_P non-zero means draw a line on the
left side of the rectangle. RIGHT_P non-zero means draw a line
on the right side of the rectangle. CLIP_RECT is the clipping
rectangle to use when drawing. */
static void
x_draw_box_rect (struct glyph_string *s,
int left_x, int top_y, int right_x, int bottom_y, int width,
int left_p, int right_p, XRectangle *clip_rect)
{
XGCValues xgcv;
XGetGCValues (s->display, s->gc, GCForeground, &xgcv);
XSetForeground (s->display, s->gc, s->face->box_color);
XSetClipRectangles (s->display, s->gc, 0, 0, clip_rect, 1, Unsorted);
/* Top. */
XFillRectangle (s->display, s->window, s->gc,
left_x, top_y, right_x - left_x + 1, width);
/* Left. */
if (left_p)
XFillRectangle (s->display, s->window, s->gc,
left_x, top_y, width, bottom_y - top_y + 1);
/* Bottom. */
XFillRectangle (s->display, s->window, s->gc,
left_x, bottom_y - width + 1, right_x - left_x + 1, width);
/* Right. */
if (right_p)
XFillRectangle (s->display, s->window, s->gc,
right_x - width + 1, top_y, width, bottom_y - top_y + 1);
XSetForeground (s->display, s->gc, xgcv.foreground);
XSetClipMask (s->display, s->gc, None);
}
/* Draw a box around glyph string S. */
static void
x_draw_glyph_string_box (struct glyph_string *s)
{
int width, left_x, right_x, top_y, bottom_y, last_x, raised_p;
int left_p, right_p;
struct glyph *last_glyph;
XRectangle clip_rect;
last_x = ((s->row->full_width_p && !s->w->pseudo_window_p)
? WINDOW_RIGHT_EDGE_X (s->w)
: window_box_right (s->w, s->area));
/* The glyph that may have a right box line. */
last_glyph = (s->cmp || s->img
? s->first_glyph
: s->first_glyph + s->nchars - 1);
width = eabs (s->face->box_line_width);
raised_p = s->face->box == FACE_RAISED_BOX;
left_x = s->x;
right_x = (s->row->full_width_p && s->extends_to_end_of_line_p
? last_x - 1
: min (last_x, s->x + s->background_width) - 1);
top_y = s->y;
bottom_y = top_y + s->height - 1;
left_p = (s->first_glyph->left_box_line_p
|| (s->hl == DRAW_MOUSE_FACE
&& (s->prev == NULL
|| s->prev->hl != s->hl)));
right_p = (last_glyph->right_box_line_p
|| (s->hl == DRAW_MOUSE_FACE
&& (s->next == NULL
|| s->next->hl != s->hl)));
get_glyph_string_clip_rect (s, &clip_rect);
if (s->face->box == FACE_SIMPLE_BOX)
x_draw_box_rect (s, left_x, top_y, right_x, bottom_y, width,
left_p, right_p, &clip_rect);
else
{
x_setup_relief_colors (s);
x_draw_relief_rect (s->f, left_x, top_y, right_x, bottom_y,
width, raised_p, 1, 1, left_p, right_p, &clip_rect);
}
}
/* Draw foreground of image glyph string S. */
static void
x_draw_image_foreground (struct glyph_string *s)
{
int x = s->x;
int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
/* If first glyph of S has a left box line, start drawing it to the
right of that line. */
if (s->face->box != FACE_NO_BOX
&& s->first_glyph->left_box_line_p
&& s->slice.x == 0)
x += eabs (s->face->box_line_width);
/* If there is a margin around the image, adjust x- and y-position
by that margin. */
if (s->slice.x == 0)
x += s->img->hmargin;
if (s->slice.y == 0)
y += s->img->vmargin;
if (s->img->pixmap)
{
if (s->img->mask)
{
/* We can't set both a clip mask and use XSetClipRectangles
because the latter also sets a clip mask. We also can't
trust on the shape extension to be available
(XShapeCombineRegion). So, compute the rectangle to draw
manually. */
unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin
| GCFunction);
XGCValues xgcv;
XRectangle clip_rect, image_rect, r;
xgcv.clip_mask = s->img->mask;
xgcv.clip_x_origin = x;
xgcv.clip_y_origin = y;
xgcv.function = GXcopy;
XChangeGC (s->display, s->gc, mask, &xgcv);
get_glyph_string_clip_rect (s, &clip_rect);
image_rect.x = x;
image_rect.y = y;
image_rect.width = s->slice.width;
image_rect.height = s->slice.height;
if (x_intersect_rectangles (&clip_rect, &image_rect, &r))
XCopyArea (s->display, s->img->pixmap, s->window, s->gc,
s->slice.x + r.x - x, s->slice.y + r.y - y,
r.width, r.height, r.x, r.y);
}
else
{
XRectangle clip_rect, image_rect, r;
get_glyph_string_clip_rect (s, &clip_rect);
image_rect.x = x;
image_rect.y = y;
image_rect.width = s->slice.width;
image_rect.height = s->slice.height;
if (x_intersect_rectangles (&clip_rect, &image_rect, &r))
XCopyArea (s->display, s->img->pixmap, s->window, s->gc,
s->slice.x + r.x - x, s->slice.y + r.y - y,
r.width, r.height, r.x, r.y);
/* When the image has a mask, we can expect that at
least part of a mouse highlight or a block cursor will
be visible. If the image doesn't have a mask, make
a block cursor visible by drawing a rectangle around
the image. I believe it's looking better if we do
nothing here for mouse-face. */
if (s->hl == DRAW_CURSOR)
{
int relief = eabs (s->img->relief);
XDrawRectangle (s->display, s->window, s->gc,
x - relief, y - relief,
s->slice.width + relief*2 - 1,
s->slice.height + relief*2 - 1);
}
}
}
else
/* Draw a rectangle if image could not be loaded. */
XDrawRectangle (s->display, s->window, s->gc, x, y,
s->slice.width - 1, s->slice.height - 1);
}
/* Draw a relief around the image glyph string S. */
static void
x_draw_image_relief (struct glyph_string *s)
{
int x1, y1, thick, raised_p, top_p, bot_p, left_p, right_p;
int extra_x, extra_y;
XRectangle r;
int x = s->x;
int y = s->ybase - image_ascent (s->img, s->face, &s->slice);
/* If first glyph of S has a left box line, start drawing it to the
right of that line. */
if (s->face->box != FACE_NO_BOX
&& s->first_glyph->left_box_line_p
&& s->slice.x == 0)
x += eabs (s->face->box_line_width);
/* If there is a margin around the image, adjust x- and y-position
by that margin. */
if (s->slice.x == 0)
x += s->img->hmargin;
if (s->slice.y == 0)
y += s->img->vmargin;
if (s->hl == DRAW_IMAGE_SUNKEN
|| s->hl == DRAW_IMAGE_RAISED)
{
thick = tool_bar_button_relief >= 0 ? tool_bar_button_relief : DEFAULT_TOOL_BAR_BUTTON_RELIEF;
raised_p = s->hl == DRAW_IMAGE_RAISED;
}
else
{
thick = eabs (s->img->relief);
raised_p = s->img->relief > 0;
}
x1 = x + s->slice.width - 1;
y1 = y + s->slice.height - 1;
extra_x = extra_y = 0;
if (s->face->id == TOOL_BAR_FACE_ID)
{
if (CONSP (Vtool_bar_button_margin)
&& INTEGERP (XCAR (Vtool_bar_button_margin))
&& INTEGERP (XCDR (Vtool_bar_button_margin)))
{
extra_x = XINT (XCAR (Vtool_bar_button_margin));
extra_y = XINT (XCDR (Vtool_bar_button_margin));
}
else if (INTEGERP (Vtool_bar_button_margin))
extra_x = extra_y = XINT (Vtool_bar_button_margin);
}
top_p = bot_p = left_p = right_p = 0;
if (s->slice.x == 0)
x -= thick + extra_x, left_p = 1;
if (s->slice.y == 0)
y -= thick + extra_y, top_p = 1;
if (s->slice.x + s->slice.width == s->img->width)
x1 += thick + extra_x, right_p = 1;
if (s->slice.y + s->slice.height == s->img->height)
y1 += thick + extra_y, bot_p = 1;
x_setup_relief_colors (s);
get_glyph_string_clip_rect (s, &r);
x_draw_relief_rect (s->f, x, y, x1, y1, thick, raised_p,
top_p, bot_p, left_p, right_p, &r);
}
/* Draw the foreground of image glyph string S to PIXMAP. */
static void
x_draw_image_foreground_1 (struct glyph_string *s, Pixmap pixmap)
{
int x = 0;
int y = s->ybase - s->y - image_ascent (s->img, s->face, &s->slice);
/* If first glyph of S has a left box line, start drawing it to the
right of that line. */
if (s->face->box != FACE_NO_BOX
&& s->first_glyph->left_box_line_p
&& s->slice.x == 0)
x += eabs (s->face->box_line_width);
/* If there is a margin around the image, adjust x- and y-position
by that margin. */
if (s->slice.x == 0)
x += s->img->hmargin;
if (s->slice.y == 0)
y += s->img->vmargin;
if (s->img->pixmap)
{
if (s->img->mask)
{
/* We can't set both a clip mask and use XSetClipRectangles
because the latter also sets a clip mask. We also can't
trust on the shape extension to be available
(XShapeCombineRegion). So, compute the rectangle to draw
manually. */
unsigned long mask = (GCClipMask | GCClipXOrigin | GCClipYOrigin
| GCFunction);
XGCValues xgcv;
xgcv.clip_mask = s->img->mask;
xgcv.clip_x_origin = x - s->slice.x;
xgcv.clip_y_origin = y - s->slice.y;
xgcv.function = GXcopy;
XChangeGC (s->display, s->gc, mask, &xgcv);
XCopyArea (s->display, s->img->pixmap, pixmap, s->gc,
s->slice.x, s->slice.y,
s->slice.width, s->slice.height, x, y);
XSetClipMask (s->display, s->gc, None);
}
else
{
XCopyArea (s->display, s->img->pixmap, pixmap, s->gc,
s->slice.x, s->slice.y,
s->slice.width, s->slice.height, x, y);
/* When the image has a mask, we can expect that at
least part of a mouse highlight or a block cursor will
be visible. If the image doesn't have a mask, make
a block cursor visible by drawing a rectangle around
the image. I believe it's looking better if we do
nothing here for mouse-face. */
if (s->hl == DRAW_CURSOR)
{
int r = eabs (s->img->relief);
XDrawRectangle (s->display, s->window, s->gc, x - r, y - r,
s->slice.width + r*2 - 1,
s->slice.height + r*2 - 1);
}
}
}
else
/* Draw a rectangle if image could not be loaded. */
XDrawRectangle (s->display, pixmap, s->gc, x, y,
s->slice.width - 1, s->slice.height - 1);
}
/* Draw part of the background of glyph string S. X, Y, W, and H
give the rectangle to draw. */
static void
x_draw_glyph_string_bg_rect (struct glyph_string *s, int x, int y, int w, int h)
{
if (s->stippled_p)
{
/* Fill background with a stipple pattern. */
XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
XFillRectangle (s->display, s->window, s->gc, x, y, w, h);
XSetFillStyle (s->display, s->gc, FillSolid);
}
else
x_clear_glyph_string_rect (s, x, y, w, h);
}
/* Draw image glyph string S.
s->y
s->x +-------------------------
| s->face->box
|
| +-------------------------
| | s->img->margin
| |
| | +-------------------
| | | the image
*/
static void
x_draw_image_glyph_string (struct glyph_string *s)
{
int box_line_hwidth = eabs (s->face->box_line_width);
int box_line_vwidth = max (s->face->box_line_width, 0);
int height;
Pixmap pixmap = None;
height = s->height;
if (s->slice.y == 0)
height -= box_line_vwidth;
if (s->slice.y + s->slice.height >= s->img->height)
height -= box_line_vwidth;
/* Fill background with face under the image. Do it only if row is
taller than image or if image has a clip mask to reduce
flickering. */
s->stippled_p = s->face->stipple != 0;
if (height > s->slice.height
|| s->img->hmargin
|| s->img->vmargin
|| s->img->mask
|| s->img->pixmap == 0
|| s->width != s->background_width)
{
if (s->img->mask)
{
/* Create a pixmap as large as the glyph string. Fill it
with the background color. Copy the image to it, using
its mask. Copy the temporary pixmap to the display. */
Screen *screen = FRAME_X_SCREEN (s->f);
int depth = DefaultDepthOfScreen (screen);
/* Create a pixmap as large as the glyph string. */
pixmap = XCreatePixmap (s->display, s->window,
s->background_width,
s->height, depth);
/* Don't clip in the following because we're working on the
pixmap. */
XSetClipMask (s->display, s->gc, None);
/* Fill the pixmap with the background color/stipple. */
if (s->stippled_p)
{
/* Fill background with a stipple pattern. */
XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
XSetTSOrigin (s->display, s->gc, - s->x, - s->y);
XFillRectangle (s->display, pixmap, s->gc,
0, 0, s->background_width, s->height);
XSetFillStyle (s->display, s->gc, FillSolid);
XSetTSOrigin (s->display, s->gc, 0, 0);
}
else
{
XGCValues xgcv;
XGetGCValues (s->display, s->gc, GCForeground | GCBackground,
&xgcv);
XSetForeground (s->display, s->gc, xgcv.background);
XFillRectangle (s->display, pixmap, s->gc,
0, 0, s->background_width, s->height);
XSetForeground (s->display, s->gc, xgcv.foreground);
}
}
else
{
int x = s->x;
int y = s->y;
int width = s->background_width;
if (s->first_glyph->left_box_line_p
&& s->slice.x == 0)
{
x += box_line_hwidth;
width -= box_line_hwidth;
}
if (s->slice.y == 0)
y += box_line_vwidth;
x_draw_glyph_string_bg_rect (s, x, y, width, height);
}
s->background_filled_p = 1;
}
/* Draw the foreground. */
if (pixmap != None)
{
x_draw_image_foreground_1 (s, pixmap);
x_set_glyph_string_clipping (s);
XCopyArea (s->display, pixmap, s->window, s->gc,
0, 0, s->background_width, s->height, s->x, s->y);
XFreePixmap (s->display, pixmap);
}
else
x_draw_image_foreground (s);
/* If we must draw a relief around the image, do it. */
if (s->img->relief
|| s->hl == DRAW_IMAGE_RAISED
|| s->hl == DRAW_IMAGE_SUNKEN)
x_draw_image_relief (s);
}
/* Draw stretch glyph string S. */
static void
x_draw_stretch_glyph_string (struct glyph_string *s)
{
eassert (s->first_glyph->type == STRETCH_GLYPH);
if (s->hl == DRAW_CURSOR
&& !x_stretch_cursor_p)
{
/* If `x-stretch-cursor' is nil, don't draw a block cursor as
wide as the stretch glyph. */
int width, background_width = s->background_width;
int x = s->x;
if (!s->row->reversed_p)
{
int left_x = window_box_left_offset (s->w, TEXT_AREA);
if (x < left_x)
{
background_width -= left_x - x;
x = left_x;
}
}
else
{
/* In R2L rows, draw the cursor on the right edge of the
stretch glyph. */
int right_x = window_box_right (s->w, TEXT_AREA);
if (x + background_width > right_x)
background_width -= x - right_x;
x += background_width;
}
width = min (FRAME_COLUMN_WIDTH (s->f), background_width);
if (s->row->reversed_p)
x -= width;
/* Draw cursor. */
x_draw_glyph_string_bg_rect (s, x, s->y, width, s->height);
/* Clear rest using the GC of the original non-cursor face. */
if (width < background_width)
{
int y = s->y;
int w = background_width - width, h = s->height;
XRectangle r;
GC gc;
if (!s->row->reversed_p)
x += width;
else
x = s->x;
if (s->row->mouse_face_p
&& cursor_in_mouse_face_p (s->w))
{
x_set_mouse_face_gc (s);
gc = s->gc;
}
else
gc = s->face->gc;
get_glyph_string_clip_rect (s, &r);
XSetClipRectangles (s->display, gc, 0, 0, &r, 1, Unsorted);
if (s->face->stipple)
{
/* Fill background with a stipple pattern. */
XSetFillStyle (s->display, gc, FillOpaqueStippled);
XFillRectangle (s->display, s->window, gc, x, y, w, h);
XSetFillStyle (s->display, gc, FillSolid);
}
else
{
XGCValues xgcv;
XGetGCValues (s->display, gc, GCForeground | GCBackground, &xgcv);
XSetForeground (s->display, gc, xgcv.background);
XFillRectangle (s->display, s->window, gc, x, y, w, h);
XSetForeground (s->display, gc, xgcv.foreground);
}
XSetClipMask (s->display, gc, None);
}
}
else if (!s->background_filled_p)
{
int background_width = s->background_width;
int x = s->x, left_x = window_box_left_offset (s->w, TEXT_AREA);
/* Don't draw into left margin, fringe or scrollbar area
except for header line and mode line. */
if (x < left_x && !s->row->mode_line_p)
{
background_width -= left_x - x;
x = left_x;
}
if (background_width > 0)
x_draw_glyph_string_bg_rect (s, x, s->y, background_width, s->height);
}
s->background_filled_p = 1;
}
/*
Draw a wavy line under S. The wave fills wave_height pixels from y0.
x0 wave_length = 2
--
y0 * * * * *
|* * * * * * * * *
wave_height = 3 | * * * *
*/
static void
x_draw_underwave (struct glyph_string *s)
{
int wave_height = 3, wave_length = 2;
int dx, dy, x0, y0, width, x1, y1, x2, y2, odd, xmax;
XRectangle wave_clip, string_clip, final_clip;
dx = wave_length;
dy = wave_height - 1;
x0 = s->x;
y0 = s->ybase - wave_height + 3;
width = s->width;
xmax = x0 + width;
/* Find and set clipping rectangle */
wave_clip.x = x0;
wave_clip.y = y0;
wave_clip.width = width;
wave_clip.height = wave_height;
get_glyph_string_clip_rect (s, &string_clip);
if (!x_intersect_rectangles (&wave_clip, &string_clip, &final_clip))
return;
XSetClipRectangles (s->display, s->gc, 0, 0, &final_clip, 1, Unsorted);
/* Draw the waves */
x1 = x0 - (x0 % dx);
x2 = x1 + dx;
odd = (x1/dx) % 2;
y1 = y2 = y0;
if (odd)
y1 += dy;
else
y2 += dy;
if (INT_MAX - dx < xmax)
emacs_abort ();
while (x1 <= xmax)
{
XDrawLine (s->display, s->window, s->gc, x1, y1, x2, y2);
x1 = x2, y1 = y2;
x2 += dx, y2 = y0 + odd*dy;
odd = !odd;
}
/* Restore previous clipping rectangle(s) */
XSetClipRectangles (s->display, s->gc, 0, 0, s->clip, s->num_clips, Unsorted);
}
/* Draw glyph string S. */
static void
x_draw_glyph_string (struct glyph_string *s)
{
bool relief_drawn_p = 0;
/* If S draws into the background of its successors, draw the
background of the successors first so that S can draw into it.
This makes S->next use XDrawString instead of XDrawImageString. */
if (s->next && s->right_overhang && !s->for_overlaps)
{
int width;
struct glyph_string *next;
for (width = 0, next = s->next;
next && width < s->right_overhang;
width += next->width, next = next->next)
if (next->first_glyph->type != IMAGE_GLYPH)
{
x_set_glyph_string_gc (next);
x_set_glyph_string_clipping (next);
if (next->first_glyph->type == STRETCH_GLYPH)
x_draw_stretch_glyph_string (next);
else
x_draw_glyph_string_background (next, 1);
next->num_clips = 0;
}
}
/* Set up S->gc, set clipping and draw S. */
x_set_glyph_string_gc (s);
/* Draw relief (if any) in advance for char/composition so that the
glyph string can be drawn over it. */
if (!s->for_overlaps
&& s->face->box != FACE_NO_BOX
&& (s->first_glyph->type == CHAR_GLYPH
|| s->first_glyph->type == COMPOSITE_GLYPH))
{
x_set_glyph_string_clipping (s);
x_draw_glyph_string_background (s, 1);
x_draw_glyph_string_box (s);
x_set_glyph_string_clipping (s);
relief_drawn_p = 1;
}
else if (!s->clip_head /* draw_glyphs didn't specify a clip mask. */
&& !s->clip_tail
&& ((s->prev && s->prev->hl != s->hl && s->left_overhang)
|| (s->next && s->next->hl != s->hl && s->right_overhang)))
/* We must clip just this glyph. left_overhang part has already
drawn when s->prev was drawn, and right_overhang part will be
drawn later when s->next is drawn. */
x_set_glyph_string_clipping_exactly (s, s);
else
x_set_glyph_string_clipping (s);
switch (s->first_glyph->type)
{
case IMAGE_GLYPH:
x_draw_image_glyph_string (s);
break;
case STRETCH_GLYPH:
x_draw_stretch_glyph_string (s);
break;
case CHAR_GLYPH:
if (s->for_overlaps)
s->background_filled_p = 1;
else
x_draw_glyph_string_background (s, 0);
x_draw_glyph_string_foreground (s);
break;
case COMPOSITE_GLYPH:
if (s->for_overlaps || (s->cmp_from > 0
&& ! s->first_glyph->u.cmp.automatic))
s->background_filled_p = 1;
else
x_draw_glyph_string_background (s, 1);
x_draw_composite_glyph_string_foreground (s);
break;
case GLYPHLESS_GLYPH:
if (s->for_overlaps)
s->background_filled_p = 1;
else
x_draw_glyph_string_background (s, 1);
x_draw_glyphless_glyph_string_foreground (s);
break;
default:
emacs_abort ();
}
if (!s->for_overlaps)
{
/* Draw underline. */
if (s->face->underline_p)
{
if (s->face->underline_type == FACE_UNDER_WAVE)
{
if (s->face->underline_defaulted_p)
x_draw_underwave (s);
else
{
XGCValues xgcv;
XGetGCValues (s->display, s->gc, GCForeground, &xgcv);
XSetForeground (s->display, s->gc, s->face->underline_color);
x_draw_underwave (s);
XSetForeground (s->display, s->gc, xgcv.foreground);
}
}
else if (s->face->underline_type == FACE_UNDER_LINE)
{
unsigned long thickness, position;
int y;
if (s->prev && s->prev->face->underline_p
&& s->prev->face->underline_type == FACE_UNDER_LINE)
{
/* We use the same underline style as the previous one. */
thickness = s->prev->underline_thickness;
position = s->prev->underline_position;
}
else
{
/* Get the underline thickness. Default is 1 pixel. */
if (s->font && s->font->underline_thickness > 0)
thickness = s->font->underline_thickness;
else
thickness = 1;
if (x_underline_at_descent_line)
position = (s->height - thickness) - (s->ybase - s->y);
else
{
/* Get the underline position. This is the recommended
vertical offset in pixels from the baseline to the top of
the underline. This is a signed value according to the
specs, and its default is
ROUND ((maximum descent) / 2), with
ROUND(x) = floor (x + 0.5) */
if (x_use_underline_position_properties
&& s->font && s->font->underline_position >= 0)
position = s->font->underline_position;
else if (s->font)
position = (s->font->descent + 1) / 2;
else
position = underline_minimum_offset;
}
position = max (position, underline_minimum_offset);
}
/* Check the sanity of thickness and position. We should
avoid drawing underline out of the current line area. */
if (s->y + s->height <= s->ybase + position)
position = (s->height - 1) - (s->ybase - s->y);
if (s->y + s->height < s->ybase + position + thickness)
thickness = (s->y + s->height) - (s->ybase + position);
s->underline_thickness = thickness;
s->underline_position = position;
y = s->ybase + position;
if (s->face->underline_defaulted_p)
XFillRectangle (s->display, s->window, s->gc,
s->x, y, s->width, thickness);
else
{
XGCValues xgcv;
XGetGCValues (s->display, s->gc, GCForeground, &xgcv);
XSetForeground (s->display, s->gc, s->face->underline_color);
XFillRectangle (s->display, s->window, s->gc,
s->x, y, s->width, thickness);
XSetForeground (s->display, s->gc, xgcv.foreground);
}
}
}
/* Draw overline. */
if (s->face->overline_p)
{
unsigned long dy = 0, h = 1;
if (s->face->overline_color_defaulted_p)
XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy,
s->width, h);
else
{
XGCValues xgcv;
XGetGCValues (s->display, s->gc, GCForeground, &xgcv);
XSetForeground (s->display, s->gc, s->face->overline_color);
XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy,
s->width, h);
XSetForeground (s->display, s->gc, xgcv.foreground);
}
}
/* Draw strike-through. */
if (s->face->strike_through_p)
{
unsigned long h = 1;
unsigned long dy = (s->height - h) / 2;
if (s->face->strike_through_color_defaulted_p)
XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy,
s->width, h);
else
{
XGCValues xgcv;
XGetGCValues (s->display, s->gc, GCForeground, &xgcv);
XSetForeground (s->display, s->gc, s->face->strike_through_color);
XFillRectangle (s->display, s->window, s->gc, s->x, s->y + dy,
s->width, h);
XSetForeground (s->display, s->gc, xgcv.foreground);
}
}
/* Draw relief if not yet drawn. */
if (!relief_drawn_p && s->face->box != FACE_NO_BOX)
x_draw_glyph_string_box (s);
if (s->prev)
{
struct glyph_string *prev;
for (prev = s->prev; prev; prev = prev->prev)
if (prev->hl != s->hl
&& prev->x + prev->width + prev->right_overhang > s->x)
{
/* As prev was drawn while clipped to its own area, we
must draw the right_overhang part using s->hl now. */
enum draw_glyphs_face save = prev->hl;
prev->hl = s->hl;
x_set_glyph_string_gc (prev);
x_set_glyph_string_clipping_exactly (s, prev);
if (prev->first_glyph->type == CHAR_GLYPH)
x_draw_glyph_string_foreground (prev);
else
x_draw_composite_glyph_string_foreground (prev);
XSetClipMask (prev->display, prev->gc, None);
prev->hl = save;
prev->num_clips = 0;
}
}
if (s->next)
{
struct glyph_string *next;
for (next = s->next; next; next = next->next)
if (next->hl != s->hl
&& next->x - next->left_overhang < s->x + s->width)
{
/* As next will be drawn while clipped to its own area,
we must draw the left_overhang part using s->hl now. */
enum draw_glyphs_face save = next->hl;
next->hl = s->hl;
x_set_glyph_string_gc (next);
x_set_glyph_string_clipping_exactly (s, next);
if (next->first_glyph->type == CHAR_GLYPH)
x_draw_glyph_string_foreground (next);
else
x_draw_composite_glyph_string_foreground (next);
XSetClipMask (next->display, next->gc, None);
next->hl = save;
next->num_clips = 0;
next->clip_head = s->next;
}
}
}
/* Reset clipping. */
XSetClipMask (s->display, s->gc, None);
s->num_clips = 0;
}
/* Shift display to make room for inserted glyphs. */
static void
x_shift_glyphs_for_insert (struct frame *f, int x, int y, int width, int height, int shift_by)
{
XCopyArea (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), FRAME_X_WINDOW (f),
f->output_data.x->normal_gc,
x, y, width, height,
x + shift_by, y);
}
/* Delete N glyphs at the nominal cursor position. Not implemented
for X frames. */
static void
x_delete_glyphs (struct frame *f, register int n)
{
emacs_abort ();
}
/* Like XClearArea, but check that WIDTH and HEIGHT are reasonable.
If they are <= 0, this is probably an error. */
void
x_clear_area (Display *dpy, Window window, int x, int y, int width, int height)
{
eassert (width > 0 && height > 0);
XClearArea (dpy, window, x, y, width, height, False);
}
/* Clear an entire frame. */
static void
x_clear_frame (struct frame *f)
{
/* Clearing the frame will erase any cursor, so mark them all as no
longer visible. */
mark_window_cursors_off (XWINDOW (FRAME_ROOT_WINDOW (f)));
block_input ();
XClearWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
/* We have to clear the scroll bars. If we have changed colors or
something like that, then they should be notified. */
x_scroll_bar_clear (f);
#if defined (USE_GTK) && defined (USE_TOOLKIT_SCROLL_BARS)
/* Make sure scroll bars are redrawn. As they aren't redrawn by
redisplay, do it here. */
if (FRAME_GTK_WIDGET (f))
gtk_widget_queue_draw (FRAME_GTK_WIDGET (f));
#endif
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
}
\f
/* Invert the middle quarter of the frame for .15 sec. */
static void
XTflash (struct frame *f)
{
block_input ();
{
#ifdef USE_GTK
/* Use Gdk routines to draw. This way, we won't draw over scroll bars
when the scroll bars and the edit widget share the same X window. */
GdkWindow *window = gtk_widget_get_window (FRAME_GTK_WIDGET (f));
#ifdef HAVE_GTK3
cairo_t *cr = gdk_cairo_create (window);
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_set_operator (cr, CAIRO_OPERATOR_DIFFERENCE);
#define XFillRectangle(d, win, gc, x, y, w, h) \
do { \
cairo_rectangle (cr, x, y, w, h); \
cairo_fill (cr); \
} \
while (0)
#else /* ! HAVE_GTK3 */
GdkGCValues vals;
GdkGC *gc;
vals.foreground.pixel = (FRAME_FOREGROUND_PIXEL (f)
^ FRAME_BACKGROUND_PIXEL (f));
vals.function = GDK_XOR;
gc = gdk_gc_new_with_values (window,
&vals, GDK_GC_FUNCTION | GDK_GC_FOREGROUND);
#define XFillRectangle(d, win, gc, x, y, w, h) \
gdk_draw_rectangle (window, gc, TRUE, x, y, w, h)
#endif /* ! HAVE_GTK3 */
#else /* ! USE_GTK */
GC gc;
/* Create a GC that will use the GXxor function to flip foreground
pixels into background pixels. */
{
XGCValues values;
values.function = GXxor;
values.foreground = (FRAME_FOREGROUND_PIXEL (f)
^ FRAME_BACKGROUND_PIXEL (f));
gc = XCreateGC (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
GCFunction | GCForeground, &values);
}
#endif
{
/* Get the height not including a menu bar widget. */
int height = FRAME_PIXEL_HEIGHT (f);
/* Height of each line to flash. */
int flash_height = FRAME_LINE_HEIGHT (f);
/* These will be the left and right margins of the rectangles. */
int flash_left = FRAME_INTERNAL_BORDER_WIDTH (f);
int flash_right = FRAME_PIXEL_WIDTH (f) - FRAME_INTERNAL_BORDER_WIDTH (f);
int width = flash_right - flash_left;
/* If window is tall, flash top and bottom line. */
if (height > 3 * FRAME_LINE_HEIGHT (f))
{
XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
flash_left,
(FRAME_INTERNAL_BORDER_WIDTH (f)
+ FRAME_TOP_MARGIN_HEIGHT (f)),
width, flash_height);
XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
flash_left,
(height - flash_height
- FRAME_INTERNAL_BORDER_WIDTH (f)),
width, flash_height);
}
else
/* If it is short, flash it all. */
XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
flash_left, FRAME_INTERNAL_BORDER_WIDTH (f),
width, height - 2 * FRAME_INTERNAL_BORDER_WIDTH (f));
x_flush (f);
{
struct timespec delay = make_timespec (0, 150 * 1000 * 1000);
struct timespec wakeup = timespec_add (current_timespec (), delay);
/* Keep waiting until past the time wakeup or any input gets
available. */
while (! detect_input_pending ())
{
struct timespec current = current_timespec ();
struct timespec timeout;
/* Break if result would not be positive. */
if (timespec_cmp (wakeup, current) <= 0)
break;
/* How long `select' should wait. */
timeout = make_timespec (0, 10 * 1000 * 1000);
/* Try to wait that long--but we might wake up sooner. */
pselect (0, NULL, NULL, NULL, &timeout, NULL);
}
}
/* If window is tall, flash top and bottom line. */
if (height > 3 * FRAME_LINE_HEIGHT (f))
{
XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
flash_left,
(FRAME_INTERNAL_BORDER_WIDTH (f)
+ FRAME_TOP_MARGIN_HEIGHT (f)),
width, flash_height);
XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
flash_left,
(height - flash_height
- FRAME_INTERNAL_BORDER_WIDTH (f)),
width, flash_height);
}
else
/* If it is short, flash it all. */
XFillRectangle (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), gc,
flash_left, FRAME_INTERNAL_BORDER_WIDTH (f),
width, height - 2 * FRAME_INTERNAL_BORDER_WIDTH (f));
#ifdef USE_GTK
#ifdef HAVE_GTK3
cairo_destroy (cr);
#else
g_object_unref (G_OBJECT (gc));
#endif
#undef XFillRectangle
#else
XFreeGC (FRAME_X_DISPLAY (f), gc);
#endif
x_flush (f);
}
}
unblock_input ();
}
static void
XTtoggle_invisible_pointer (struct frame *f, int invisible)
{
block_input ();
if (invisible)
{
if (FRAME_DISPLAY_INFO (f)->invisible_cursor != 0)
XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
FRAME_DISPLAY_INFO (f)->invisible_cursor);
}
else
XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
f->output_data.x->current_cursor);
f->pointer_invisible = invisible;
unblock_input ();
}
/* Make audible bell. */
static void
XTring_bell (struct frame *f)
{
if (FRAME_X_DISPLAY (f))
{
if (visible_bell)
XTflash (f);
else
{
block_input ();
#ifdef HAVE_XKB
XkbBell (FRAME_X_DISPLAY (f), None, 0, None);
#else
XBell (FRAME_X_DISPLAY (f), 0);
#endif
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
}
}
}
/***********************************************************************
Line Dance
***********************************************************************/
/* Perform an insert-lines or delete-lines operation, inserting N
lines or deleting -N lines at vertical position VPOS. */
static void
x_ins_del_lines (struct frame *f, int vpos, int n)
{
emacs_abort ();
}
/* Scroll part of the display as described by RUN. */
static void
x_scroll_run (struct window *w, struct run *run)
{
struct frame *f = XFRAME (w->frame);
int x, y, width, height, from_y, to_y, bottom_y;
/* Get frame-relative bounding box of the text display area of W,
without mode lines. Include in this box the left and right
fringe of W. */
window_box (w, ANY_AREA, &x, &y, &width, &height);
from_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->current_y);
to_y = WINDOW_TO_FRAME_PIXEL_Y (w, run->desired_y);
bottom_y = y + height;
if (to_y < from_y)
{
/* Scrolling up. Make sure we don't copy part of the mode
line at the bottom. */
if (from_y + run->height > bottom_y)
height = bottom_y - from_y;
else
height = run->height;
}
else
{
/* Scrolling down. Make sure we don't copy over the mode line.
at the bottom. */
if (to_y + run->height > bottom_y)
height = bottom_y - to_y;
else
height = run->height;
}
block_input ();
/* Cursor off. Will be switched on again in x_update_window_end. */
x_clear_cursor (w);
XCopyArea (FRAME_X_DISPLAY (f),
FRAME_X_WINDOW (f), FRAME_X_WINDOW (f),
f->output_data.x->normal_gc,
x, from_y,
width, height,
x, to_y);
unblock_input ();
}
\f
/***********************************************************************
Exposure Events
***********************************************************************/
\f
static void
frame_highlight (struct frame *f)
{
/* We used to only do this if Vx_no_window_manager was non-nil, but
the ICCCM (section 4.1.6) says that the window's border pixmap
and border pixel are window attributes which are "private to the
client", so we can always change it to whatever we want. */
block_input ();
/* I recently started to get errors in this XSetWindowBorder, depending on
the window-manager in use, tho something more is at play since I've been
using that same window-manager binary for ever. Let's not crash just
because of this (bug#9310). */
x_catch_errors (FRAME_X_DISPLAY (f));
XSetWindowBorder (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
f->output_data.x->border_pixel);
x_uncatch_errors ();
unblock_input ();
x_update_cursor (f, 1);
x_set_frame_alpha (f);
}
static void
frame_unhighlight (struct frame *f)
{
/* We used to only do this if Vx_no_window_manager was non-nil, but
the ICCCM (section 4.1.6) says that the window's border pixmap
and border pixel are window attributes which are "private to the
client", so we can always change it to whatever we want. */
block_input ();
/* Same as above for XSetWindowBorder (bug#9310). */
x_catch_errors (FRAME_X_DISPLAY (f));
XSetWindowBorderPixmap (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
f->output_data.x->border_tile);
x_uncatch_errors ();
unblock_input ();
x_update_cursor (f, 1);
x_set_frame_alpha (f);
}
/* The focus has changed. Update the frames as necessary to reflect
the new situation. Note that we can't change the selected frame
here, because the Lisp code we are interrupting might become confused.
Each event gets marked with the frame in which it occurred, so the
Lisp code can tell when the switch took place by examining the events. */
static void
x_new_focus_frame (struct x_display_info *dpyinfo, struct frame *frame)
{
struct frame *old_focus = dpyinfo->x_focus_frame;
if (frame != dpyinfo->x_focus_frame)
{
/* Set this before calling other routines, so that they see
the correct value of x_focus_frame. */
dpyinfo->x_focus_frame = frame;
if (old_focus && old_focus->auto_lower)
x_lower_frame (old_focus);
if (dpyinfo->x_focus_frame && dpyinfo->x_focus_frame->auto_raise)
dpyinfo->x_pending_autoraise_frame = dpyinfo->x_focus_frame;
else
dpyinfo->x_pending_autoraise_frame = NULL;
}
x_frame_rehighlight (dpyinfo);
}
/* Handle FocusIn and FocusOut state changes for FRAME.
If FRAME has focus and there exists more than one frame, puts
a FOCUS_IN_EVENT into *BUFP. */
static void
x_focus_changed (int type, int state, struct x_display_info *dpyinfo, struct frame *frame, struct input_event *bufp)
{
if (type == FocusIn)
{
if (dpyinfo->x_focus_event_frame != frame)
{
x_new_focus_frame (dpyinfo, frame);
dpyinfo->x_focus_event_frame = frame;
/* Don't stop displaying the initial startup message
for a switch-frame event we don't need. */
/* When run as a daemon, Vterminal_frame is always NIL. */
bufp->arg = (((NILP (Vterminal_frame)
|| ! FRAME_X_P (XFRAME (Vterminal_frame))
|| EQ (Fdaemonp (), Qt))
&& CONSP (Vframe_list)
&& !NILP (XCDR (Vframe_list)))
? Qt : Qnil);
bufp->kind = FOCUS_IN_EVENT;
XSETFRAME (bufp->frame_or_window, frame);
}
frame->output_data.x->focus_state |= state;
#ifdef HAVE_X_I18N
if (FRAME_XIC (frame))
XSetICFocus (FRAME_XIC (frame));
#endif
}
else if (type == FocusOut)
{
frame->output_data.x->focus_state &= ~state;
if (dpyinfo->x_focus_event_frame == frame)
{
dpyinfo->x_focus_event_frame = 0;
x_new_focus_frame (dpyinfo, 0);
bufp->kind = FOCUS_OUT_EVENT;
XSETFRAME (bufp->frame_or_window, frame);
}
#ifdef HAVE_X_I18N
if (FRAME_XIC (frame))
XUnsetICFocus (FRAME_XIC (frame));
#endif
if (frame->pointer_invisible)
XTtoggle_invisible_pointer (frame, 0);
}
}
/* Return the Emacs frame-object corresponding to an X window.
It could be the frame's main window or an icon window. */
static struct frame *
x_window_to_frame (struct x_display_info *dpyinfo, int wdesc)
{
Lisp_Object tail, frame;
struct frame *f;
if (wdesc == None)
return NULL;
FOR_EACH_FRAME (tail, frame)
{
f = XFRAME (frame);
if (!FRAME_X_P (f) || FRAME_DISPLAY_INFO (f) != dpyinfo)
continue;
if (f->output_data.x->hourglass_window == wdesc)
return f;
#ifdef USE_X_TOOLKIT
if ((f->output_data.x->edit_widget
&& XtWindow (f->output_data.x->edit_widget) == wdesc)
/* A tooltip frame? */
|| (!f->output_data.x->edit_widget
&& FRAME_X_WINDOW (f) == wdesc)
|| f->output_data.x->icon_desc == wdesc)
return f;
#else /* not USE_X_TOOLKIT */
#ifdef USE_GTK
if (f->output_data.x->edit_widget)
{
GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
struct x_output *x = f->output_data.x;
if (gwdesc != 0 && gwdesc == x->edit_widget)
return f;
}
#endif /* USE_GTK */
if (FRAME_X_WINDOW (f) == wdesc
|| f->output_data.x->icon_desc == wdesc)
return f;
#endif /* not USE_X_TOOLKIT */
}
return 0;
}
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
/* Like x_window_to_frame but also compares the window with the widget's
windows. */
static struct frame *
x_any_window_to_frame (struct x_display_info *dpyinfo, int wdesc)
{
Lisp_Object tail, frame;
struct frame *f, *found = NULL;
struct x_output *x;
if (wdesc == None)
return NULL;
FOR_EACH_FRAME (tail, frame)
{
if (found)
break;
f = XFRAME (frame);
if (FRAME_X_P (f) && FRAME_DISPLAY_INFO (f) == dpyinfo)
{
/* This frame matches if the window is any of its widgets. */
x = f->output_data.x;
if (x->hourglass_window == wdesc)
found = f;
else if (x->widget)
{
#ifdef USE_GTK
GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
if (gwdesc != 0
&& gtk_widget_get_toplevel (gwdesc) == x->widget)
found = f;
#else
if (wdesc == XtWindow (x->widget)
|| wdesc == XtWindow (x->column_widget)
|| wdesc == XtWindow (x->edit_widget))
found = f;
/* Match if the window is this frame's menubar. */
else if (lw_window_is_in_menubar (wdesc, x->menubar_widget))
found = f;
#endif
}
else if (FRAME_X_WINDOW (f) == wdesc)
/* A tooltip frame. */
found = f;
}
}
return found;
}
/* Likewise, but consider only the menu bar widget. */
static struct frame *
x_menubar_window_to_frame (struct x_display_info *dpyinfo,
const XEvent *event)
{
Window wdesc = event->xany.window;
Lisp_Object tail, frame;
struct frame *f;
struct x_output *x;
if (wdesc == None)
return NULL;
FOR_EACH_FRAME (tail, frame)
{
f = XFRAME (frame);
if (!FRAME_X_P (f) || FRAME_DISPLAY_INFO (f) != dpyinfo)
continue;
x = f->output_data.x;
#ifdef USE_GTK
if (x->menubar_widget && xg_event_is_for_menubar (f, event))
return f;
#else
/* Match if the window is this frame's menubar. */
if (x->menubar_widget
&& lw_window_is_in_menubar (wdesc, x->menubar_widget))
return f;
#endif
}
return 0;
}
/* Return the frame whose principal (outermost) window is WDESC.
If WDESC is some other (smaller) window, we return 0. */
struct frame *
x_top_window_to_frame (struct x_display_info *dpyinfo, int wdesc)
{
Lisp_Object tail, frame;
struct frame *f;
struct x_output *x;
if (wdesc == None)
return NULL;
FOR_EACH_FRAME (tail, frame)
{
f = XFRAME (frame);
if (!FRAME_X_P (f) || FRAME_DISPLAY_INFO (f) != dpyinfo)
continue;
x = f->output_data.x;
if (x->widget)
{
/* This frame matches if the window is its topmost widget. */
#ifdef USE_GTK
GtkWidget *gwdesc = xg_win_to_widget (dpyinfo->display, wdesc);
if (gwdesc == x->widget)
return f;
#else
if (wdesc == XtWindow (x->widget))
return f;
#endif
}
else if (FRAME_X_WINDOW (f) == wdesc)
/* Tooltip frame. */
return f;
}
return 0;
}
#else /* !USE_X_TOOLKIT && !USE_GTK */
#define x_any_window_to_frame(d, i) x_window_to_frame (d, i)
#define x_top_window_to_frame(d, i) x_window_to_frame (d, i)
#endif /* USE_X_TOOLKIT || USE_GTK */
/* The focus may have changed. Figure out if it is a real focus change,
by checking both FocusIn/Out and Enter/LeaveNotify events.
Returns FOCUS_IN_EVENT event in *BUFP. */
static void
x_detect_focus_change (struct x_display_info *dpyinfo, struct frame *frame,
const XEvent *event, struct input_event *bufp)
{
if (!frame)
return;
switch (event->type)
{
case EnterNotify:
case LeaveNotify:
{
struct frame *focus_frame = dpyinfo->x_focus_event_frame;
int focus_state
= focus_frame ? focus_frame->output_data.x->focus_state : 0;
if (event->xcrossing.detail != NotifyInferior
&& event->xcrossing.focus
&& ! (focus_state & FOCUS_EXPLICIT))
x_focus_changed ((event->type == EnterNotify ? FocusIn : FocusOut),
FOCUS_IMPLICIT,
dpyinfo, frame, bufp);
}
break;
case FocusIn:
case FocusOut:
x_focus_changed (event->type,
(event->xfocus.detail == NotifyPointer ?
FOCUS_IMPLICIT : FOCUS_EXPLICIT),
dpyinfo, frame, bufp);
break;
case ClientMessage:
if (event->xclient.message_type == dpyinfo->Xatom_XEMBED)
{
enum xembed_message msg = event->xclient.data.l[1];
x_focus_changed ((msg == XEMBED_FOCUS_IN ? FocusIn : FocusOut),
FOCUS_EXPLICIT, dpyinfo, frame, bufp);
}
break;
}
}
#if !defined USE_X_TOOLKIT && !defined USE_GTK
/* Handle an event saying the mouse has moved out of an Emacs frame. */
void
x_mouse_leave (struct x_display_info *dpyinfo)
{
x_new_focus_frame (dpyinfo, dpyinfo->x_focus_event_frame);
}
#endif
/* The focus has changed, or we have redirected a frame's focus to
another frame (this happens when a frame uses a surrogate
mini-buffer frame). Shift the highlight as appropriate.
The FRAME argument doesn't necessarily have anything to do with which
frame is being highlighted or un-highlighted; we only use it to find
the appropriate X display info. */
static void
XTframe_rehighlight (struct frame *frame)
{
x_frame_rehighlight (FRAME_DISPLAY_INFO (frame));
}
static void
x_frame_rehighlight (struct x_display_info *dpyinfo)
{
struct frame *old_highlight = dpyinfo->x_highlight_frame;
if (dpyinfo->x_focus_frame)
{
dpyinfo->x_highlight_frame
= ((FRAMEP (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame)))
? XFRAME (FRAME_FOCUS_FRAME (dpyinfo->x_focus_frame))
: dpyinfo->x_focus_frame);
if (! FRAME_LIVE_P (dpyinfo->x_highlight_frame))
{
fset_focus_frame (dpyinfo->x_focus_frame, Qnil);
dpyinfo->x_highlight_frame = dpyinfo->x_focus_frame;
}
}
else
dpyinfo->x_highlight_frame = 0;
if (dpyinfo->x_highlight_frame != old_highlight)
{
if (old_highlight)
frame_unhighlight (old_highlight);
if (dpyinfo->x_highlight_frame)
frame_highlight (dpyinfo->x_highlight_frame);
}
}
\f
/* Keyboard processing - modifier keys, vendor-specific keysyms, etc. */
/* Initialize mode_switch_bit and modifier_meaning. */
static void
x_find_modifier_meanings (struct x_display_info *dpyinfo)
{
int min_code, max_code;
KeySym *syms;
int syms_per_code;
XModifierKeymap *mods;
dpyinfo->meta_mod_mask = 0;
dpyinfo->shift_lock_mask = 0;
dpyinfo->alt_mod_mask = 0;
dpyinfo->super_mod_mask = 0;
dpyinfo->hyper_mod_mask = 0;
XDisplayKeycodes (dpyinfo->display, &min_code, &max_code);
syms = XGetKeyboardMapping (dpyinfo->display,
min_code, max_code - min_code + 1,
&syms_per_code);
mods = XGetModifierMapping (dpyinfo->display);
/* Scan the modifier table to see which modifier bits the Meta and
Alt keysyms are on. */
{
int row, col; /* The row and column in the modifier table. */
int found_alt_or_meta;
for (row = 3; row < 8; row++)
{
found_alt_or_meta = 0;
for (col = 0; col < mods->max_keypermod; col++)
{
KeyCode code = mods->modifiermap[(row * mods->max_keypermod) + col];
/* Zeroes are used for filler. Skip them. */
if (code == 0)
continue;
/* Are any of this keycode's keysyms a meta key? */
{
int code_col;
for (code_col = 0; code_col < syms_per_code; code_col++)
{
int sym = syms[((code - min_code) * syms_per_code) + code_col];
switch (sym)
{
case XK_Meta_L:
case XK_Meta_R:
found_alt_or_meta = 1;
dpyinfo->meta_mod_mask |= (1 << row);
break;
case XK_Alt_L:
case XK_Alt_R:
found_alt_or_meta = 1;
dpyinfo->alt_mod_mask |= (1 << row);
break;
case XK_Hyper_L:
case XK_Hyper_R:
if (!found_alt_or_meta)
dpyinfo->hyper_mod_mask |= (1 << row);
code_col = syms_per_code;
col = mods->max_keypermod;
break;
case XK_Super_L:
case XK_Super_R:
if (!found_alt_or_meta)
dpyinfo->super_mod_mask |= (1 << row);
code_col = syms_per_code;
col = mods->max_keypermod;
break;
case XK_Shift_Lock:
/* Ignore this if it's not on the lock modifier. */
if (!found_alt_or_meta && ((1 << row) == LockMask))
dpyinfo->shift_lock_mask = LockMask;
code_col = syms_per_code;
col = mods->max_keypermod;
break;
}
}
}
}
}
}
/* If we couldn't find any meta keys, accept any alt keys as meta keys. */
if (! dpyinfo->meta_mod_mask)
{
dpyinfo->meta_mod_mask = dpyinfo->alt_mod_mask;
dpyinfo->alt_mod_mask = 0;
}
/* If some keys are both alt and meta,
make them just meta, not alt. */
if (dpyinfo->alt_mod_mask & dpyinfo->meta_mod_mask)
{
dpyinfo->alt_mod_mask &= ~dpyinfo->meta_mod_mask;
}
XFree (syms);
XFreeModifiermap (mods);
}
/* Convert between the modifier bits X uses and the modifier bits
Emacs uses. */
int
x_x_to_emacs_modifiers (struct x_display_info *dpyinfo, int state)
{
int mod_meta = meta_modifier;
int mod_alt = alt_modifier;
int mod_hyper = hyper_modifier;
int mod_super = super_modifier;
Lisp_Object tem;
tem = Fget (Vx_alt_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_alt = XINT (tem) & INT_MAX;
tem = Fget (Vx_meta_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_meta = XINT (tem) & INT_MAX;
tem = Fget (Vx_hyper_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_hyper = XINT (tem) & INT_MAX;
tem = Fget (Vx_super_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_super = XINT (tem) & INT_MAX;
return ( ((state & (ShiftMask | dpyinfo->shift_lock_mask)) ? shift_modifier : 0)
| ((state & ControlMask) ? ctrl_modifier : 0)
| ((state & dpyinfo->meta_mod_mask) ? mod_meta : 0)
| ((state & dpyinfo->alt_mod_mask) ? mod_alt : 0)
| ((state & dpyinfo->super_mod_mask) ? mod_super : 0)
| ((state & dpyinfo->hyper_mod_mask) ? mod_hyper : 0));
}
static int
x_emacs_to_x_modifiers (struct x_display_info *dpyinfo, EMACS_INT state)
{
EMACS_INT mod_meta = meta_modifier;
EMACS_INT mod_alt = alt_modifier;
EMACS_INT mod_hyper = hyper_modifier;
EMACS_INT mod_super = super_modifier;
Lisp_Object tem;
tem = Fget (Vx_alt_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_alt = XINT (tem);
tem = Fget (Vx_meta_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_meta = XINT (tem);
tem = Fget (Vx_hyper_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_hyper = XINT (tem);
tem = Fget (Vx_super_keysym, Qmodifier_value);
if (INTEGERP (tem)) mod_super = XINT (tem);
return ( ((state & mod_alt) ? dpyinfo->alt_mod_mask : 0)
| ((state & mod_super) ? dpyinfo->super_mod_mask : 0)
| ((state & mod_hyper) ? dpyinfo->hyper_mod_mask : 0)
| ((state & shift_modifier) ? ShiftMask : 0)
| ((state & ctrl_modifier) ? ControlMask : 0)
| ((state & mod_meta) ? dpyinfo->meta_mod_mask : 0));
}
/* Convert a keysym to its name. */
char *
x_get_keysym_name (int keysym)
{
char *value;
block_input ();
value = XKeysymToString (keysym);
unblock_input ();
return value;
}
/* Mouse clicks and mouse movement. Rah.
Formerly, we used PointerMotionHintMask (in standard_event_mask)
so that we would have to call XQueryPointer after each MotionNotify
event to ask for another such event. However, this made mouse tracking
slow, and there was a bug that made it eventually stop.
Simply asking for MotionNotify all the time seems to work better.
In order to avoid asking for motion events and then throwing most
of them away or busy-polling the server for mouse positions, we ask
the server for pointer motion hints. This means that we get only
one event per group of mouse movements. "Groups" are delimited by
other kinds of events (focus changes and button clicks, for
example), or by XQueryPointer calls; when one of these happens, we
get another MotionNotify event the next time the mouse moves. This
is at least as efficient as getting motion events when mouse
tracking is on, and I suspect only negligibly worse when tracking
is off. */
/* Prepare a mouse-event in *RESULT for placement in the input queue.
If the event is a button press, then note that we have grabbed
the mouse. */
static Lisp_Object
construct_mouse_click (struct input_event *result,
const XButtonEvent *event,
struct frame *f)
{
/* Make the event type NO_EVENT; we'll change that when we decide
otherwise. */
result->kind = MOUSE_CLICK_EVENT;
result->code = event->button - Button1;
result->timestamp = event->time;
result->modifiers = (x_x_to_emacs_modifiers (FRAME_DISPLAY_INFO (f),
event->state)
| (event->type == ButtonRelease
? up_modifier
: down_modifier));
XSETINT (result->x, event->x);
XSETINT (result->y, event->y);
XSETFRAME (result->frame_or_window, f);
result->arg = Qnil;
return Qnil;
}
/* Function to report a mouse movement to the mainstream Emacs code.
The input handler calls this.
We have received a mouse movement event, which is given in *event.
If the mouse is over a different glyph than it was last time, tell
the mainstream emacs code by setting mouse_moved. If not, ask for
another motion event, so we can check again the next time it moves. */
static int
note_mouse_movement (struct frame *frame, const XMotionEvent *event)
{
XRectangle *r;
struct x_display_info *dpyinfo;
if (!FRAME_X_OUTPUT (frame))
return 0;
dpyinfo = FRAME_DISPLAY_INFO (frame);
dpyinfo->last_mouse_movement_time = event->time;
dpyinfo->last_mouse_motion_frame = frame;
dpyinfo->last_mouse_motion_x = event->x;
dpyinfo->last_mouse_motion_y = event->y;
if (event->window != FRAME_X_WINDOW (frame))
{
frame->mouse_moved = 1;
dpyinfo->last_mouse_scroll_bar = NULL;
note_mouse_highlight (frame, -1, -1);
dpyinfo->last_mouse_glyph_frame = NULL;
return 1;
}
/* Has the mouse moved off the glyph it was on at the last sighting? */
r = &dpyinfo->last_mouse_glyph;
if (frame != dpyinfo->last_mouse_glyph_frame
|| event->x < r->x || event->x >= r->x + r->width
|| event->y < r->y || event->y >= r->y + r->height)
{
frame->mouse_moved = 1;
dpyinfo->last_mouse_scroll_bar = NULL;
note_mouse_highlight (frame, event->x, event->y);
/* Remember which glyph we're now on. */
remember_mouse_glyph (frame, event->x, event->y, r);
dpyinfo->last_mouse_glyph_frame = frame;
return 1;
}
return 0;
}
/* Return the current position of the mouse.
*FP should be a frame which indicates which display to ask about.
If the mouse movement started in a scroll bar, set *FP, *BAR_WINDOW,
and *PART to the frame, window, and scroll bar part that the mouse
is over. Set *X and *Y to the portion and whole of the mouse's
position on the scroll bar.
If the mouse movement started elsewhere, set *FP to the frame the
mouse is on, *BAR_WINDOW to nil, and *X and *Y to the character cell
the mouse is over.
Set *TIMESTAMP to the server time-stamp for the time at which the mouse
was at this position.
Don't store anything if we don't have a valid set of values to report.
This clears the mouse_moved flag, so we can wait for the next mouse
movement. */
static void
XTmouse_position (struct frame **fp, int insist, Lisp_Object *bar_window,
enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
Time *timestamp)
{
struct frame *f1;
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (*fp);
block_input ();
if (dpyinfo->last_mouse_scroll_bar && insist == 0)
x_scroll_bar_report_motion (fp, bar_window, part, x, y, timestamp);
else
{
Window root;
int root_x, root_y;
Window dummy_window;
int dummy;
Lisp_Object frame, tail;
/* Clear the mouse-moved flag for every frame on this display. */
FOR_EACH_FRAME (tail, frame)
if (FRAME_X_P (XFRAME (frame))
&& FRAME_X_DISPLAY (XFRAME (frame)) == FRAME_X_DISPLAY (*fp))
XFRAME (frame)->mouse_moved = 0;
dpyinfo->last_mouse_scroll_bar = NULL;
/* Figure out which root window we're on. */
XQueryPointer (FRAME_X_DISPLAY (*fp),
DefaultRootWindow (FRAME_X_DISPLAY (*fp)),
/* The root window which contains the pointer. */
&root,
/* Trash which we can't trust if the pointer is on
a different screen. */
&dummy_window,
/* The position on that root window. */
&root_x, &root_y,
/* More trash we can't trust. */
&dummy, &dummy,
/* Modifier keys and pointer buttons, about which
we don't care. */
(unsigned int *) &dummy);
/* Now we have a position on the root; find the innermost window
containing the pointer. */
{
Window win, child;
int win_x, win_y;
int parent_x = 0, parent_y = 0;
win = root;
/* XTranslateCoordinates can get errors if the window
structure is changing at the same time this function
is running. So at least we must not crash from them. */
x_catch_errors (FRAME_X_DISPLAY (*fp));
if (x_mouse_grabbed (dpyinfo))
{
/* If mouse was grabbed on a frame, give coords for that frame
even if the mouse is now outside it. */
XTranslateCoordinates (FRAME_X_DISPLAY (*fp),
/* From-window. */
root,
/* To-window. */
FRAME_X_WINDOW (dpyinfo->last_mouse_frame),
/* From-position, to-position. */
root_x, root_y, &win_x, &win_y,
/* Child of win. */
&child);
f1 = dpyinfo->last_mouse_frame;
}
else
{
while (1)
{
XTranslateCoordinates (FRAME_X_DISPLAY (*fp),
/* From-window, to-window. */
root, win,
/* From-position, to-position. */
root_x, root_y, &win_x, &win_y,
/* Child of win. */
&child);
if (child == None || child == win)
break;
#ifdef USE_GTK
/* We don't wan't to know the innermost window. We
want the edit window. For non-Gtk+ the innermost
window is the edit window. For Gtk+ it might not
be. It might be the tool bar for example. */
if (x_window_to_frame (dpyinfo, win))
break;
#endif
win = child;
parent_x = win_x;
parent_y = win_y;
}
/* Now we know that:
win is the innermost window containing the pointer
(XTC says it has no child containing the pointer),
win_x and win_y are the pointer's position in it
(XTC did this the last time through), and
parent_x and parent_y are the pointer's position in win's parent.
(They are what win_x and win_y were when win was child.
If win is the root window, it has no parent, and
parent_{x,y} are invalid, but that's okay, because we'll
never use them in that case.) */
#ifdef USE_GTK
/* We don't wan't to know the innermost window. We
want the edit window. */
f1 = x_window_to_frame (dpyinfo, win);
#else
/* Is win one of our frames? */
f1 = x_any_window_to_frame (dpyinfo, win);
#endif
#ifdef USE_X_TOOLKIT
/* If we end up with the menu bar window, say it's not
on the frame. */
if (f1 != NULL
&& f1->output_data.x->menubar_widget
&& win == XtWindow (f1->output_data.x->menubar_widget))
f1 = NULL;
#endif /* USE_X_TOOLKIT */
}
if (x_had_errors_p (FRAME_X_DISPLAY (*fp)))
f1 = 0;
x_uncatch_errors ();
/* If not, is it one of our scroll bars? */
if (! f1)
{
struct scroll_bar *bar;
bar = x_window_to_scroll_bar (FRAME_X_DISPLAY (*fp), win);
if (bar)
{
f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
win_x = parent_x;
win_y = parent_y;
}
}
if (f1 == 0 && insist > 0)
f1 = SELECTED_FRAME ();
if (f1)
{
/* Ok, we found a frame. Store all the values.
last_mouse_glyph is a rectangle used to reduce the
generation of mouse events. To not miss any motion
events, we must divide the frame into rectangles of the
size of the smallest character that could be displayed
on it, i.e. into the same rectangles that matrices on
the frame are divided into. */
/* FIXME: what if F1 is not an X frame? */
dpyinfo = FRAME_DISPLAY_INFO (f1);
remember_mouse_glyph (f1, win_x, win_y, &dpyinfo->last_mouse_glyph);
dpyinfo->last_mouse_glyph_frame = f1;
*bar_window = Qnil;
*part = 0;
*fp = f1;
XSETINT (*x, win_x);
XSETINT (*y, win_y);
*timestamp = dpyinfo->last_mouse_movement_time;
}
}
}
unblock_input ();
}
\f
/***********************************************************************
Scroll bars
***********************************************************************/
/* Scroll bar support. */
/* Given an X window ID and a DISPLAY, find the struct scroll_bar which
manages it.
This can be called in GC, so we have to make sure to strip off mark
bits. */
static struct scroll_bar *
x_window_to_scroll_bar (Display *display, Window window_id)
{
Lisp_Object tail, frame;
#if defined (USE_GTK) && defined (USE_TOOLKIT_SCROLL_BARS)
window_id = (Window) xg_get_scroll_id_for_window (display, window_id);
#endif /* USE_GTK && USE_TOOLKIT_SCROLL_BARS */
FOR_EACH_FRAME (tail, frame)
{
Lisp_Object bar, condemned;
if (! FRAME_X_P (XFRAME (frame)))
continue;
/* Scan this frame's scroll bar list for a scroll bar with the
right window ID. */
condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
/* This trick allows us to search both the ordinary and
condemned scroll bar lists with one loop. */
! NILP (bar) || (bar = condemned,
condemned = Qnil,
! NILP (bar));
bar = XSCROLL_BAR (bar)->next)
if (XSCROLL_BAR (bar)->x_window == window_id &&
FRAME_X_DISPLAY (XFRAME (frame)) == display)
return XSCROLL_BAR (bar);
}
return NULL;
}
#if defined USE_LUCID
/* Return the Lucid menu bar WINDOW is part of. Return null
if WINDOW is not part of a menu bar. */
static Widget
x_window_to_menu_bar (Window window)
{
Lisp_Object tail, frame;
FOR_EACH_FRAME (tail, frame)
if (FRAME_X_P (XFRAME (frame)))
{
Widget menu_bar = XFRAME (frame)->output_data.x->menubar_widget;
if (menu_bar && xlwmenu_window_p (menu_bar, window))
return menu_bar;
}
return NULL;
}
#endif /* USE_LUCID */
\f
/************************************************************************
Toolkit scroll bars
************************************************************************/
#ifdef USE_TOOLKIT_SCROLL_BARS
static void x_send_scroll_bar_event (Lisp_Object, int, int, int);
/* Lisp window being scrolled. Set when starting to interact with
a toolkit scroll bar, reset to nil when ending the interaction. */
static Lisp_Object window_being_scrolled;
/* Whether this is an Xaw with arrow-scrollbars. This should imply
that movements of 1/20 of the screen size are mapped to up/down. */
#ifndef USE_GTK
/* Id of action hook installed for scroll bars. */
static XtActionHookId action_hook_id;
static Boolean xaw3d_arrow_scroll;
/* Whether the drag scrolling maintains the mouse at the top of the
thumb. If not, resizing the thumb needs to be done more carefully
to avoid jerkiness. */
static Boolean xaw3d_pick_top;
/* Action hook installed via XtAppAddActionHook when toolkit scroll
bars are used.. The hook is responsible for detecting when
the user ends an interaction with the scroll bar, and generates
a `end-scroll' SCROLL_BAR_CLICK_EVENT' event if so. */
static void
xt_action_hook (Widget widget, XtPointer client_data, String action_name,
XEvent *event, String *params, Cardinal *num_params)
{
int scroll_bar_p;
const char *end_action;
#ifdef USE_MOTIF
scroll_bar_p = XmIsScrollBar (widget);
end_action = "Release";
#else /* !USE_MOTIF i.e. use Xaw */
scroll_bar_p = XtIsSubclass (widget, scrollbarWidgetClass);
end_action = "EndScroll";
#endif /* USE_MOTIF */
if (scroll_bar_p
&& strcmp (action_name, end_action) == 0
&& WINDOWP (window_being_scrolled))
{
struct window *w;
struct scroll_bar *bar;
x_send_scroll_bar_event (window_being_scrolled,
scroll_bar_end_scroll, 0, 0);
w = XWINDOW (window_being_scrolled);
bar = XSCROLL_BAR (w->vertical_scroll_bar);
if (bar->dragging != -1)
{
bar->dragging = -1;
/* The thumb size is incorrect while dragging: fix it. */
set_vertical_scroll_bar (w);
}
window_being_scrolled = Qnil;
#if defined (USE_LUCID)
bar->last_seen_part = scroll_bar_nowhere;
#endif
/* Xt timeouts no longer needed. */
toolkit_scroll_bar_interaction = 0;
}
}
#endif /* not USE_GTK */
/* Send a client message with message type Xatom_Scrollbar for a
scroll action to the frame of WINDOW. PART is a value identifying
the part of the scroll bar that was clicked on. PORTION is the
amount to scroll of a whole of WHOLE. */
static void
x_send_scroll_bar_event (Lisp_Object window, int part, int portion, int whole)
{
XEvent event;
XClientMessageEvent *ev = &event.xclient;
struct window *w = XWINDOW (window);
struct frame *f = XFRAME (w->frame);
intptr_t iw = (intptr_t) w;
enum { BITS_PER_INTPTR = CHAR_BIT * sizeof iw };
verify (BITS_PER_INTPTR <= 64);
int sign_shift = BITS_PER_INTPTR - 32;
block_input ();
/* Construct a ClientMessage event to send to the frame. */
ev->type = ClientMessage;
ev->message_type = FRAME_DISPLAY_INFO (f)->Xatom_Scrollbar;
ev->display = FRAME_X_DISPLAY (f);
ev->window = FRAME_X_WINDOW (f);
ev->format = 32;
/* A 32-bit X client on a 64-bit X server can pass a window pointer
as-is. A 64-bit client on a 32-bit X server is in trouble
because a pointer does not fit and would be truncated while
passing through the server. So use two slots and hope that X12
will resolve such issues someday. */
ev->data.l[0] = iw >> 31 >> 1;
ev->data.l[1] = sign_shift <= 0 ? iw : iw << sign_shift >> sign_shift;
ev->data.l[2] = part;
ev->data.l[3] = portion;
ev->data.l[4] = whole;
/* Make Xt timeouts work while the scroll bar is active. */
#ifdef USE_X_TOOLKIT
toolkit_scroll_bar_interaction = 1;
x_activate_timeout_atimer ();
#endif
/* Setting the event mask to zero means that the message will
be sent to the client that created the window, and if that
window no longer exists, no event will be sent. */
XSendEvent (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), False, 0, &event);
unblock_input ();
}
/* Transform a scroll bar ClientMessage EVENT to an Emacs input event
in *IEVENT. */
static void
x_scroll_bar_to_input_event (const XEvent *event,
struct input_event *ievent)
{
const XClientMessageEvent *ev = &event->xclient;
Lisp_Object window;
struct window *w;
/* See the comment in the function above. */
intptr_t iw0 = ev->data.l[0];
intptr_t iw1 = ev->data.l[1];
intptr_t iw = (iw0 << 31 << 1) + (iw1 & 0xffffffffu);
w = (struct window *) iw;
XSETWINDOW (window, w);
ievent->kind = SCROLL_BAR_CLICK_EVENT;
ievent->frame_or_window = window;
ievent->arg = Qnil;
#ifdef USE_GTK
ievent->timestamp = CurrentTime;
#else
ievent->timestamp =
XtLastTimestampProcessed (FRAME_X_DISPLAY (XFRAME (w->frame)));
#endif
ievent->code = 0;
ievent->part = ev->data.l[2];
ievent->x = make_number (ev->data.l[3]);
ievent->y = make_number (ev->data.l[4]);
ievent->modifiers = 0;
}
#ifdef USE_MOTIF
/* Minimum and maximum values used for Motif scroll bars. */
#define XM_SB_MAX 10000000
/* Scroll bar callback for Motif scroll bars. WIDGET is the scroll
bar widget. CLIENT_DATA is a pointer to the scroll_bar structure.
CALL_DATA is a pointer to a XmScrollBarCallbackStruct. */
static void
xm_scroll_callback (Widget widget, XtPointer client_data, XtPointer call_data)
{
struct scroll_bar *bar = client_data;
XmScrollBarCallbackStruct *cs = call_data;
int part = -1, whole = 0, portion = 0;
switch (cs->reason)
{
case XmCR_DECREMENT:
bar->dragging = -1;
part = scroll_bar_up_arrow;
break;
case XmCR_INCREMENT:
bar->dragging = -1;
part = scroll_bar_down_arrow;
break;
case XmCR_PAGE_DECREMENT:
bar->dragging = -1;
part = scroll_bar_above_handle;
break;
case XmCR_PAGE_INCREMENT:
bar->dragging = -1;
part = scroll_bar_below_handle;
break;
case XmCR_TO_TOP:
bar->dragging = -1;
part = scroll_bar_to_top;
break;
case XmCR_TO_BOTTOM:
bar->dragging = -1;
part = scroll_bar_to_bottom;
break;
case XmCR_DRAG:
{
int slider_size;
/* Get the slider size. */
block_input ();
XtVaGetValues (widget, XmNsliderSize, &slider_size, NULL);
unblock_input ();
whole = XM_SB_MAX - slider_size;
portion = min (cs->value, whole);
part = scroll_bar_handle;
bar->dragging = cs->value;
}
break;
case XmCR_VALUE_CHANGED:
break;
};
if (part >= 0)
{
window_being_scrolled = bar->window;
x_send_scroll_bar_event (bar->window, part, portion, whole);
}
}
#elif defined USE_GTK
/* Scroll bar callback for GTK scroll bars. WIDGET is the scroll
bar widget. DATA is a pointer to the scroll_bar structure. */
static gboolean
xg_scroll_callback (GtkRange *range,
GtkScrollType scroll,
gdouble value,
gpointer user_data)
{
struct scroll_bar *bar = user_data;
int part = -1, whole = 0, portion = 0;
GtkAdjustment *adj = GTK_ADJUSTMENT (gtk_range_get_adjustment (range));
struct frame *f = g_object_get_data (G_OBJECT (range), XG_FRAME_DATA);
if (xg_ignore_gtk_scrollbar) return FALSE;
switch (scroll)
{
case GTK_SCROLL_JUMP:
/* Buttons 1 2 or 3 must be grabbed. */
if (FRAME_DISPLAY_INFO (f)->grabbed != 0
&& FRAME_DISPLAY_INFO (f)->grabbed < (1 << 4))
{
part = scroll_bar_handle;
whole = gtk_adjustment_get_upper (adj) -
gtk_adjustment_get_page_size (adj);
portion = min ((int)value, whole);
bar->dragging = portion;
}
break;
case GTK_SCROLL_STEP_BACKWARD:
part = scroll_bar_up_arrow;
bar->dragging = -1;
break;
case GTK_SCROLL_STEP_FORWARD:
part = scroll_bar_down_arrow;
bar->dragging = -1;
break;
case GTK_SCROLL_PAGE_BACKWARD:
part = scroll_bar_above_handle;
bar->dragging = -1;
break;
case GTK_SCROLL_PAGE_FORWARD:
part = scroll_bar_below_handle;
bar->dragging = -1;
break;
}
if (part >= 0)
{
window_being_scrolled = bar->window;
x_send_scroll_bar_event (bar->window, part, portion, whole);
}
return FALSE;
}
/* Callback for button release. Sets dragging to -1 when dragging is done. */
static gboolean
xg_end_scroll_callback (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
struct scroll_bar *bar = user_data;
bar->dragging = -1;
if (WINDOWP (window_being_scrolled))
{
x_send_scroll_bar_event (window_being_scrolled,
scroll_bar_end_scroll, 0, 0);
window_being_scrolled = Qnil;
}
return FALSE;
}
#else /* not USE_GTK and not USE_MOTIF */
/* Xaw scroll bar callback. Invoked when the thumb is dragged.
WIDGET is the scroll bar widget. CLIENT_DATA is a pointer to the
scroll bar struct. CALL_DATA is a pointer to a float saying where
the thumb is. */
static void
xaw_jump_callback (Widget widget, XtPointer client_data, XtPointer call_data)
{
struct scroll_bar *bar = client_data;
float *top_addr = call_data;
float top = *top_addr;
float shown;
int whole, portion, height;
enum scroll_bar_part part;
/* Get the size of the thumb, a value between 0 and 1. */
block_input ();
XtVaGetValues (widget, XtNshown, &shown, XtNheight, &height, NULL);
unblock_input ();
whole = 10000000;
portion = shown < 1 ? top * whole : 0;
if (shown < 1 && (eabs (top + shown - 1) < 1.0f / height))
/* Some derivatives of Xaw refuse to shrink the thumb when you reach
the bottom, so we force the scrolling whenever we see that we're
too close to the bottom (in x_set_toolkit_scroll_bar_thumb
we try to ensure that we always stay two pixels away from the
bottom). */
part = scroll_bar_down_arrow;
else
part = scroll_bar_handle;
window_being_scrolled = bar->window;
bar->dragging = portion;
bar->last_seen_part = part;
x_send_scroll_bar_event (bar->window, part, portion, whole);
}
/* Xaw scroll bar callback. Invoked for incremental scrolling.,
i.e. line or page up or down. WIDGET is the Xaw scroll bar
widget. CLIENT_DATA is a pointer to the scroll_bar structure for
the scroll bar. CALL_DATA is an integer specifying the action that
has taken place. Its magnitude is in the range 0..height of the
scroll bar. Negative values mean scroll towards buffer start.
Values < height of scroll bar mean line-wise movement. */
static void
xaw_scroll_callback (Widget widget, XtPointer client_data, XtPointer call_data)
{
struct scroll_bar *bar = client_data;
/* The position really is stored cast to a pointer. */
int position = (intptr_t) call_data;
Dimension height;
enum scroll_bar_part part;
/* Get the height of the scroll bar. */
block_input ();
XtVaGetValues (widget, XtNheight, &height, NULL);
unblock_input ();
if (eabs (position) >= height)
part = (position < 0) ? scroll_bar_above_handle : scroll_bar_below_handle;
/* If Xaw3d was compiled with ARROW_SCROLLBAR,
it maps line-movement to call_data = max(5, height/20). */
else if (xaw3d_arrow_scroll && eabs (position) <= max (5, height / 20))
part = (position < 0) ? scroll_bar_up_arrow : scroll_bar_down_arrow;
else
part = scroll_bar_move_ratio;
window_being_scrolled = bar->window;
bar->dragging = -1;
bar->last_seen_part = part;
x_send_scroll_bar_event (bar->window, part, position, height);
}
#endif /* not USE_GTK and not USE_MOTIF */
#define SCROLL_BAR_NAME "verticalScrollBar"
/* Create the widget for scroll bar BAR on frame F. Record the widget
and X window of the scroll bar in BAR. */
#ifdef USE_GTK
static void
x_create_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
{
const char *scroll_bar_name = SCROLL_BAR_NAME;
block_input ();
xg_create_scroll_bar (f, bar, G_CALLBACK (xg_scroll_callback),
G_CALLBACK (xg_end_scroll_callback),
scroll_bar_name);
unblock_input ();
}
#else /* not USE_GTK */
static void
x_create_toolkit_scroll_bar (struct frame *f, struct scroll_bar *bar)
{
Window xwindow;
Widget widget;
Arg av[20];
int ac = 0;
const char *scroll_bar_name = SCROLL_BAR_NAME;
unsigned long pixel;
block_input ();
#ifdef USE_MOTIF
/* Set resources. Create the widget. */
XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac;
XtSetArg (av[ac], XmNminimum, 0); ++ac;
XtSetArg (av[ac], XmNmaximum, XM_SB_MAX); ++ac;
XtSetArg (av[ac], XmNorientation, XmVERTICAL); ++ac;
XtSetArg (av[ac], XmNprocessingDirection, XmMAX_ON_BOTTOM), ++ac;
XtSetArg (av[ac], XmNincrement, 1); ++ac;
XtSetArg (av[ac], XmNpageIncrement, 1); ++ac;
pixel = f->output_data.x->scroll_bar_foreground_pixel;
if (pixel != -1)
{
XtSetArg (av[ac], XmNforeground, pixel);
++ac;
}
pixel = f->output_data.x->scroll_bar_background_pixel;
if (pixel != -1)
{
XtSetArg (av[ac], XmNbackground, pixel);
++ac;
}
widget = XmCreateScrollBar (f->output_data.x->edit_widget,
(char *) scroll_bar_name, av, ac);
/* Add one callback for everything that can happen. */
XtAddCallback (widget, XmNdecrementCallback, xm_scroll_callback,
(XtPointer) bar);
XtAddCallback (widget, XmNdragCallback, xm_scroll_callback,
(XtPointer) bar);
XtAddCallback (widget, XmNincrementCallback, xm_scroll_callback,
(XtPointer) bar);
XtAddCallback (widget, XmNpageDecrementCallback, xm_scroll_callback,
(XtPointer) bar);
XtAddCallback (widget, XmNpageIncrementCallback, xm_scroll_callback,
(XtPointer) bar);
XtAddCallback (widget, XmNtoBottomCallback, xm_scroll_callback,
(XtPointer) bar);
XtAddCallback (widget, XmNtoTopCallback, xm_scroll_callback,
(XtPointer) bar);
/* Realize the widget. Only after that is the X window created. */
XtRealizeWidget (widget);
/* Set the cursor to an arrow. I didn't find a resource to do that.
And I'm wondering why it hasn't an arrow cursor by default. */
XDefineCursor (XtDisplay (widget), XtWindow (widget),
f->output_data.x->nontext_cursor);
#else /* !USE_MOTIF i.e. use Xaw */
/* Set resources. Create the widget. The background of the
Xaw3d scroll bar widget is a little bit light for my taste.
We don't alter it here to let users change it according
to their taste with `emacs*verticalScrollBar.background: xxx'. */
XtSetArg (av[ac], XtNmappedWhenManaged, False); ++ac;
XtSetArg (av[ac], XtNorientation, XtorientVertical); ++ac;
/* For smoother scrolling with Xaw3d -sm */
/* XtSetArg (av[ac], XtNpickTop, True); ++ac; */
pixel = f->output_data.x->scroll_bar_foreground_pixel;
if (pixel != -1)
{
XtSetArg (av[ac], XtNforeground, pixel);
++ac;
}
pixel = f->output_data.x->scroll_bar_background_pixel;
if (pixel != -1)
{
XtSetArg (av[ac], XtNbackground, pixel);
++ac;
}
/* Top/bottom shadow colors. */
/* Allocate them, if necessary. */
if (f->output_data.x->scroll_bar_top_shadow_pixel == -1)
{
pixel = f->output_data.x->scroll_bar_background_pixel;
if (pixel != -1)
{
if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f),
FRAME_X_COLORMAP (f),
&pixel, 1.2, 0x8000))
pixel = -1;
f->output_data.x->scroll_bar_top_shadow_pixel = pixel;
}
}
if (f->output_data.x->scroll_bar_bottom_shadow_pixel == -1)
{
pixel = f->output_data.x->scroll_bar_background_pixel;
if (pixel != -1)
{
if (!x_alloc_lighter_color (f, FRAME_X_DISPLAY (f),
FRAME_X_COLORMAP (f),
&pixel, 0.6, 0x4000))
pixel = -1;
f->output_data.x->scroll_bar_bottom_shadow_pixel = pixel;
}
}
#ifdef XtNbeNiceToColormap
/* Tell the toolkit about them. */
if (f->output_data.x->scroll_bar_top_shadow_pixel == -1
|| f->output_data.x->scroll_bar_bottom_shadow_pixel == -1)
/* We tried to allocate a color for the top/bottom shadow, and
failed, so tell Xaw3d to use dithering instead. */
/* But only if we have a small colormap. Xaw3d can allocate nice
colors itself. */
{
XtSetArg (av[ac], XtNbeNiceToColormap,
DefaultDepthOfScreen (FRAME_X_SCREEN (f)) < 16);
++ac;
}
else
/* Tell what colors Xaw3d should use for the top/bottom shadow, to
be more consistent with other emacs 3d colors, and since Xaw3d is
not good at dealing with allocation failure. */
{
/* This tells Xaw3d to use real colors instead of dithering for
the shadows. */
XtSetArg (av[ac], XtNbeNiceToColormap, False);
++ac;
/* Specify the colors. */
pixel = f->output_data.x->scroll_bar_top_shadow_pixel;
if (pixel != -1)
{
XtSetArg (av[ac], XtNtopShadowPixel, pixel);
++ac;
}
pixel = f->output_data.x->scroll_bar_bottom_shadow_pixel;
if (pixel != -1)
{
XtSetArg (av[ac], XtNbottomShadowPixel, pixel);
++ac;
}
}
#endif
widget = XtCreateWidget (scroll_bar_name, scrollbarWidgetClass,
f->output_data.x->edit_widget, av, ac);
{
char const *initial = "";
char const *val = initial;
XtVaGetValues (widget, XtNscrollVCursor, (XtPointer) &val,
#ifdef XtNarrowScrollbars
XtNarrowScrollbars, (XtPointer) &xaw3d_arrow_scroll,
#endif
XtNpickTop, (XtPointer) &xaw3d_pick_top, NULL);
if (xaw3d_arrow_scroll || val == initial)
{ /* ARROW_SCROLL */
xaw3d_arrow_scroll = True;
/* Isn't that just a personal preference ? --Stef */
XtVaSetValues (widget, XtNcursorName, "top_left_arrow", NULL);
}
}
/* Define callbacks. */
XtAddCallback (widget, XtNjumpProc, xaw_jump_callback, (XtPointer) bar);
XtAddCallback (widget, XtNscrollProc, xaw_scroll_callback,
(XtPointer) bar);
/* Realize the widget. Only after that is the X window created. */
XtRealizeWidget (widget);
#endif /* !USE_MOTIF */
/* Install an action hook that lets us detect when the user
finishes interacting with a scroll bar. */
if (action_hook_id == 0)
action_hook_id = XtAppAddActionHook (Xt_app_con, xt_action_hook, 0);
/* Remember X window and widget in the scroll bar vector. */
SET_SCROLL_BAR_X_WIDGET (bar, widget);
xwindow = XtWindow (widget);
bar->x_window = xwindow;
unblock_input ();
}
#endif /* not USE_GTK */
/* Set the thumb size and position of scroll bar BAR. We are currently
displaying PORTION out of a whole WHOLE, and our position POSITION. */
#ifdef USE_GTK
static void
x_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar, int portion, int position, int whole)
{
xg_set_toolkit_scroll_bar_thumb (bar, portion, position, whole);
}
#else /* not USE_GTK */
static void
x_set_toolkit_scroll_bar_thumb (struct scroll_bar *bar, int portion, int position,
int whole)
{
struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
Widget widget = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar);
float top, shown;
block_input ();
#ifdef USE_MOTIF
if (scroll_bar_adjust_thumb_portion_p)
{
/* We use an estimate of 30 chars per line rather than the real
`portion' value. This has the disadvantage that the thumb size
is not very representative, but it makes our life a lot easier.
Otherwise, we have to constantly adjust the thumb size, which
we can't always do quickly enough: while dragging, the size of
the thumb might prevent the user from dragging the thumb all the
way to the end. but Motif and some versions of Xaw3d don't allow
updating the thumb size while dragging. Also, even if we can update
its size, the update will often happen too late.
If you don't believe it, check out revision 1.650 of xterm.c to see
what hoops we were going through and the still poor behavior we got. */
portion = WINDOW_TOTAL_LINES (XWINDOW (bar->window)) * 30;
/* When the thumb is at the bottom, position == whole.
So we need to increase `whole' to make space for the thumb. */
whole += portion;
}
if (whole <= 0)
top = 0, shown = 1;
else
{
top = (float) position / whole;
shown = (float) portion / whole;
}
if (bar->dragging == -1)
{
int size, value;
/* Slider size. Must be in the range [1 .. MAX - MIN] where MAX
is the scroll bar's maximum and MIN is the scroll bar's minimum
value. */
size = clip_to_bounds (1, shown * XM_SB_MAX, XM_SB_MAX);
/* Position. Must be in the range [MIN .. MAX - SLIDER_SIZE]. */
value = top * XM_SB_MAX;
value = min (value, XM_SB_MAX - size);
XmScrollBarSetValues (widget, value, size, 0, 0, False);
}
#else /* !USE_MOTIF i.e. use Xaw */
if (whole == 0)
top = 0, shown = 1;
else
{
top = (float) position / whole;
shown = (float) portion / whole;
}
{
float old_top, old_shown;
Dimension height;
XtVaGetValues (widget,
XtNtopOfThumb, &old_top,
XtNshown, &old_shown,
XtNheight, &height,
NULL);
/* Massage the top+shown values. */
if (bar->dragging == -1 || bar->last_seen_part == scroll_bar_down_arrow)
top = max (0, min (1, top));
else
top = old_top;
#if ! defined (HAVE_XAW3D)
/* With Xaw, 'top' values too closer to 1.0 may
cause the thumb to disappear. Fix that. */
top = min (top, 0.99f);
#endif
/* Keep two pixels available for moving the thumb down. */
shown = max (0, min (1 - top - (2.0f / height), shown));
#if ! defined (HAVE_XAW3D)
/* Likewise with too small 'shown'. */
shown = max (shown, 0.01f);
#endif
/* If the call to XawScrollbarSetThumb below doesn't seem to
work, check that 'NARROWPROTO' is defined in src/config.h.
If this is not so, most likely you need to fix configure. */
if (top != old_top || shown != old_shown)
{
if (bar->dragging == -1)
XawScrollbarSetThumb (widget, top, shown);
else
{
/* Try to make the scrolling a tad smoother. */
if (!xaw3d_pick_top)
shown = min (shown, old_shown);
XawScrollbarSetThumb (widget, top, shown);
}
}
}
#endif /* !USE_MOTIF */
unblock_input ();
}
#endif /* not USE_GTK */
#endif /* USE_TOOLKIT_SCROLL_BARS */
\f
/************************************************************************
Scroll bars, general
************************************************************************/
/* Create a scroll bar and return the scroll bar vector for it. W is
the Emacs window on which to create the scroll bar. TOP, LEFT,
WIDTH and HEIGHT are the pixel coordinates and dimensions of the
scroll bar. */
static struct scroll_bar *
x_scroll_bar_create (struct window *w, int top, int left, int width, int height)
{
struct frame *f = XFRAME (w->frame);
struct scroll_bar *bar
= ALLOCATE_PSEUDOVECTOR (struct scroll_bar, x_window, PVEC_OTHER);
Lisp_Object barobj;
block_input ();
#ifdef USE_TOOLKIT_SCROLL_BARS
x_create_toolkit_scroll_bar (f, bar);
#else /* not USE_TOOLKIT_SCROLL_BARS */
{
XSetWindowAttributes a;
unsigned long mask;
Window window;
a.background_pixel = f->output_data.x->scroll_bar_background_pixel;
if (a.background_pixel == -1)
a.background_pixel = FRAME_BACKGROUND_PIXEL (f);
a.event_mask = (ButtonPressMask | ButtonReleaseMask
| ButtonMotionMask | PointerMotionHintMask
| ExposureMask);
a.cursor = FRAME_DISPLAY_INFO (f)->vertical_scroll_bar_cursor;
mask = (CWBackPixel | CWEventMask | CWCursor);
/* Clear the area of W that will serve as a scroll bar. This is
for the case that a window has been split horizontally. In
this case, no clear_frame is generated to reduce flickering. */
if (width > 0 && window_box_height (w) > 0)
x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
left, top, width, window_box_height (w));
window = XCreateWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
/* Position and size of scroll bar. */
left, top, width, height,
/* Border width, depth, class, and visual. */
0,
CopyFromParent,
CopyFromParent,
CopyFromParent,
/* Attributes. */
mask, &a);
bar->x_window = window;
}
#endif /* not USE_TOOLKIT_SCROLL_BARS */
XSETWINDOW (bar->window, w);
bar->top = top;
bar->left = left;
bar->width = width;
bar->height = height;
bar->start = 0;
bar->end = 0;
bar->dragging = -1;
#if defined (USE_TOOLKIT_SCROLL_BARS) && defined (USE_LUCID)
bar->last_seen_part = scroll_bar_nowhere;
#endif
/* Add bar to its frame's list of scroll bars. */
bar->next = FRAME_SCROLL_BARS (f);
bar->prev = Qnil;
XSETVECTOR (barobj, bar);
fset_scroll_bars (f, barobj);
if (!NILP (bar->next))
XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
/* Map the window/widget. */
#ifdef USE_TOOLKIT_SCROLL_BARS
{
#ifdef USE_GTK
xg_update_scrollbar_pos (f, bar->x_window, top,
left,width, max (height, 1));
#else /* not USE_GTK */
Widget scroll_bar = SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar);
XtConfigureWidget (scroll_bar, left, top, width, max (height, 1), 0);
XtMapWidget (scroll_bar);
#endif /* not USE_GTK */
}
#else /* not USE_TOOLKIT_SCROLL_BARS */
XMapRaised (FRAME_X_DISPLAY (f), bar->x_window);
#endif /* not USE_TOOLKIT_SCROLL_BARS */
unblock_input ();
return bar;
}
#ifndef USE_TOOLKIT_SCROLL_BARS
/* Draw BAR's handle in the proper position.
If the handle is already drawn from START to END, don't bother
redrawing it, unless REBUILD is non-zero; in that case, always
redraw it. (REBUILD is handy for drawing the handle after expose
events.)
Normally, we want to constrain the start and end of the handle to
fit inside its rectangle, but if the user is dragging the scroll
bar handle, we want to let them drag it down all the way, so that
the bar's top is as far down as it goes; otherwise, there's no way
to move to the very end of the buffer. */
static void
x_scroll_bar_set_handle (struct scroll_bar *bar, int start, int end, int rebuild)
{
bool dragging = bar->dragging != -1;
Window w = bar->x_window;
struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
GC gc = f->output_data.x->normal_gc;
/* If the display is already accurate, do nothing. */
if (! rebuild
&& start == bar->start
&& end == bar->end)
return;
block_input ();
{
int inside_width = VERTICAL_SCROLL_BAR_INSIDE_WIDTH (f, bar->width);
int inside_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, bar->height);
int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, bar->height);
/* Make sure the values are reasonable, and try to preserve
the distance between start and end. */
{
int length = end - start;
if (start < 0)
start = 0;
else if (start > top_range)
start = top_range;
end = start + length;
if (end < start)
end = start;
else if (end > top_range && ! dragging)
end = top_range;
}
/* Store the adjusted setting in the scroll bar. */
bar->start = start;
bar->end = end;
/* Clip the end position, just for display. */
if (end > top_range)
end = top_range;
/* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels
below top positions, to make sure the handle is always at least
that many pixels tall. */
end += VERTICAL_SCROLL_BAR_MIN_HANDLE;
/* Draw the empty space above the handle. Note that we can't clear
zero-height areas; that means "clear to end of window." */
if (start > 0)
x_clear_area (FRAME_X_DISPLAY (f), w,
VERTICAL_SCROLL_BAR_LEFT_BORDER,
VERTICAL_SCROLL_BAR_TOP_BORDER,
inside_width, start);
/* Change to proper foreground color if one is specified. */
if (f->output_data.x->scroll_bar_foreground_pixel != -1)
XSetForeground (FRAME_X_DISPLAY (f), gc,
f->output_data.x->scroll_bar_foreground_pixel);
/* Draw the handle itself. */
XFillRectangle (FRAME_X_DISPLAY (f), w, gc,
/* x, y, width, height */
VERTICAL_SCROLL_BAR_LEFT_BORDER,
VERTICAL_SCROLL_BAR_TOP_BORDER + start,
inside_width, end - start);
/* Restore the foreground color of the GC if we changed it above. */
if (f->output_data.x->scroll_bar_foreground_pixel != -1)
XSetForeground (FRAME_X_DISPLAY (f), gc,
FRAME_FOREGROUND_PIXEL (f));
/* Draw the empty space below the handle. Note that we can't
clear zero-height areas; that means "clear to end of window." */
if (end < inside_height)
x_clear_area (FRAME_X_DISPLAY (f), w,
VERTICAL_SCROLL_BAR_LEFT_BORDER,
VERTICAL_SCROLL_BAR_TOP_BORDER + end,
inside_width, inside_height - end);
}
unblock_input ();
}
#endif /* !USE_TOOLKIT_SCROLL_BARS */
/* Destroy scroll bar BAR, and set its Emacs window's scroll bar to
nil. */
static void
x_scroll_bar_remove (struct scroll_bar *bar)
{
struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
block_input ();
#ifdef USE_TOOLKIT_SCROLL_BARS
#ifdef USE_GTK
xg_remove_scroll_bar (f, bar->x_window);
#else /* not USE_GTK */
XtDestroyWidget (SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar));
#endif /* not USE_GTK */
#else
XDestroyWindow (FRAME_X_DISPLAY (f), bar->x_window);
#endif
/* Dissociate this scroll bar from its window. */
wset_vertical_scroll_bar (XWINDOW (bar->window), Qnil);
unblock_input ();
}
/* Set the handle of the vertical scroll bar for WINDOW to indicate
that we are displaying PORTION characters out of a total of WHOLE
characters, starting at POSITION. If WINDOW has no scroll bar,
create one. */
static void
XTset_vertical_scroll_bar (struct window *w, int portion, int whole, int position)
{
struct frame *f = XFRAME (w->frame);
Lisp_Object barobj;
struct scroll_bar *bar;
int top, height, left, width;
int window_y, window_height;
/* Get window dimensions. */
window_box (w, ANY_AREA, 0, &window_y, 0, &window_height);
top = window_y;
height = window_height;
/* Compute the left edge and the width of the scroll bar area. */
left = WINDOW_SCROLL_BAR_AREA_X (w);
width = WINDOW_SCROLL_BAR_AREA_WIDTH (w);
/* Does the scroll bar exist yet? */
if (NILP (w->vertical_scroll_bar))
{
if (width > 0 && height > 0)
{
block_input ();
x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
left, top, width, height);
unblock_input ();
}
bar = x_scroll_bar_create (w, top, left, width, max (height, 1));
}
else
{
/* It may just need to be moved and resized. */
unsigned int mask = 0;
bar = XSCROLL_BAR (w->vertical_scroll_bar);
block_input ();
if (left != bar->left)
mask |= CWX;
if (top != bar->top)
mask |= CWY;
if (width != bar->width)
mask |= CWWidth;
if (height != bar->height)
mask |= CWHeight;
#ifdef USE_TOOLKIT_SCROLL_BARS
/* Move/size the scroll bar widget. */
if (mask)
{
/* Since toolkit scroll bars are smaller than the space reserved
for them on the frame, we have to clear "under" them. */
if (width > 0 && height > 0)
x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
left, top, width, height);
#ifdef USE_GTK
xg_update_scrollbar_pos (f, bar->x_window, top,
left, width, max (height, 1));
#else /* not USE_GTK */
XtConfigureWidget (SCROLL_BAR_X_WIDGET (FRAME_X_DISPLAY (f), bar),
left, top, width, max (height, 1), 0);
#endif /* not USE_GTK */
}
#else /* not USE_TOOLKIT_SCROLL_BARS */
/* Move/size the scroll bar window. */
if (mask)
{
XWindowChanges wc;
wc.x = left;
wc.y = top;
wc.width = width;
wc.height = height;
XConfigureWindow (FRAME_X_DISPLAY (f), bar->x_window,
mask, &wc);
}
#endif /* not USE_TOOLKIT_SCROLL_BARS */
/* Remember new settings. */
bar->left = left;
bar->top = top;
bar->width = width;
bar->height = height;
unblock_input ();
}
#ifdef USE_TOOLKIT_SCROLL_BARS
x_set_toolkit_scroll_bar_thumb (bar, portion, position, whole);
#else /* not USE_TOOLKIT_SCROLL_BARS */
/* Set the scroll bar's current state, unless we're currently being
dragged. */
if (bar->dragging == -1)
{
int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, height);
if (whole == 0)
x_scroll_bar_set_handle (bar, 0, top_range, 0);
else
{
int start = ((double) position * top_range) / whole;
int end = ((double) (position + portion) * top_range) / whole;
x_scroll_bar_set_handle (bar, start, end, 0);
}
}
#endif /* not USE_TOOLKIT_SCROLL_BARS */
XSETVECTOR (barobj, bar);
wset_vertical_scroll_bar (w, barobj);
}
/* The following three hooks are used when we're doing a thorough
redisplay of the frame. We don't explicitly know which scroll bars
are going to be deleted, because keeping track of when windows go
away is a real pain - "Can you say set-window-configuration, boys
and girls?" Instead, we just assert at the beginning of redisplay
that *all* scroll bars are to be removed, and then save a scroll bar
from the fiery pit when we actually redisplay its window. */
/* Arrange for all scroll bars on FRAME to be removed at the next call
to `*judge_scroll_bars_hook'. A scroll bar may be spared if
`*redeem_scroll_bar_hook' is applied to its window before the judgment. */
static void
XTcondemn_scroll_bars (struct frame *frame)
{
/* Transfer all the scroll bars to FRAME_CONDEMNED_SCROLL_BARS. */
while (! NILP (FRAME_SCROLL_BARS (frame)))
{
Lisp_Object bar;
bar = FRAME_SCROLL_BARS (frame);
fset_scroll_bars (frame, XSCROLL_BAR (bar)->next);
XSCROLL_BAR (bar)->next = FRAME_CONDEMNED_SCROLL_BARS (frame);
XSCROLL_BAR (bar)->prev = Qnil;
if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
XSCROLL_BAR (FRAME_CONDEMNED_SCROLL_BARS (frame))->prev = bar;
fset_condemned_scroll_bars (frame, bar);
}
}
/* Un-mark WINDOW's scroll bar for deletion in this judgment cycle.
Note that WINDOW isn't necessarily condemned at all. */
static void
XTredeem_scroll_bar (struct window *window)
{
struct scroll_bar *bar;
struct frame *f;
Lisp_Object barobj;
/* We can't redeem this window's scroll bar if it doesn't have one. */
if (NILP (window->vertical_scroll_bar))
emacs_abort ();
bar = XSCROLL_BAR (window->vertical_scroll_bar);
/* Unlink it from the condemned list. */
f = XFRAME (WINDOW_FRAME (window));
if (NILP (bar->prev))
{
/* If the prev pointer is nil, it must be the first in one of
the lists. */
if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar))
/* It's not condemned. Everything's fine. */
return;
else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
window->vertical_scroll_bar))
fset_condemned_scroll_bars (f, bar->next);
else
/* If its prev pointer is nil, it must be at the front of
one or the other! */
emacs_abort ();
}
else
XSCROLL_BAR (bar->prev)->next = bar->next;
if (! NILP (bar->next))
XSCROLL_BAR (bar->next)->prev = bar->prev;
bar->next = FRAME_SCROLL_BARS (f);
bar->prev = Qnil;
XSETVECTOR (barobj, bar);
fset_scroll_bars (f, barobj);
if (! NILP (bar->next))
XSETVECTOR (XSCROLL_BAR (bar->next)->prev, bar);
}
/* Remove all scroll bars on FRAME that haven't been saved since the
last call to `*condemn_scroll_bars_hook'. */
static void
XTjudge_scroll_bars (struct frame *f)
{
Lisp_Object bar, next;
bar = FRAME_CONDEMNED_SCROLL_BARS (f);
/* Clear out the condemned list now so we won't try to process any
more events on the hapless scroll bars. */
fset_condemned_scroll_bars (f, Qnil);
for (; ! NILP (bar); bar = next)
{
struct scroll_bar *b = XSCROLL_BAR (bar);
x_scroll_bar_remove (b);
next = b->next;
b->next = b->prev = Qnil;
}
/* Now there should be no references to the condemned scroll bars,
and they should get garbage-collected. */
}
#ifndef USE_TOOLKIT_SCROLL_BARS
/* Handle an Expose or GraphicsExpose event on a scroll bar. This
is a no-op when using toolkit scroll bars.
This may be called from a signal handler, so we have to ignore GC
mark bits. */
static void
x_scroll_bar_expose (struct scroll_bar *bar, const XEvent *event)
{
Window w = bar->x_window;
struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
GC gc = f->output_data.x->normal_gc;
block_input ();
x_scroll_bar_set_handle (bar, bar->start, bar->end, 1);
/* Switch to scroll bar foreground color. */
if (f->output_data.x->scroll_bar_foreground_pixel != -1)
XSetForeground (FRAME_X_DISPLAY (f), gc,
f->output_data.x->scroll_bar_foreground_pixel);
/* Draw a one-pixel border just inside the edges of the scroll bar. */
XDrawRectangle (FRAME_X_DISPLAY (f), w, gc,
/* x, y, width, height */
0, 0, bar->width - 1, bar->height - 1);
/* Restore the foreground color of the GC if we changed it above. */
if (f->output_data.x->scroll_bar_foreground_pixel != -1)
XSetForeground (FRAME_X_DISPLAY (f), gc,
FRAME_FOREGROUND_PIXEL (f));
unblock_input ();
}
#endif /* not USE_TOOLKIT_SCROLL_BARS */
/* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
is set to something other than NO_EVENT, it is enqueued.
This may be called from a signal handler, so we have to ignore GC
mark bits. */
static void
x_scroll_bar_handle_click (struct scroll_bar *bar,
const XEvent *event,
struct input_event *emacs_event)
{
if (! WINDOWP (bar->window))
emacs_abort ();
emacs_event->kind = SCROLL_BAR_CLICK_EVENT;
emacs_event->code = event->xbutton.button - Button1;
emacs_event->modifiers
= (x_x_to_emacs_modifiers (FRAME_DISPLAY_INFO
(XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))),
event->xbutton.state)
| (event->type == ButtonRelease
? up_modifier
: down_modifier));
emacs_event->frame_or_window = bar->window;
emacs_event->arg = Qnil;
emacs_event->timestamp = event->xbutton.time;
{
int top_range
= VERTICAL_SCROLL_BAR_TOP_RANGE (f, bar->height);
int y = event->xbutton.y - VERTICAL_SCROLL_BAR_TOP_BORDER;
if (y < 0) y = 0;
if (y > top_range) y = top_range;
if (y < bar->start)
emacs_event->part = scroll_bar_above_handle;
else if (y < bar->end + VERTICAL_SCROLL_BAR_MIN_HANDLE)
emacs_event->part = scroll_bar_handle;
else
emacs_event->part = scroll_bar_below_handle;
#ifndef USE_TOOLKIT_SCROLL_BARS
/* If the user has released the handle, set it to its final position. */
if (event->type == ButtonRelease && bar->dragging != -1)
{
int new_start = y - bar->dragging;
int new_end = new_start + bar->end - bar->start;
x_scroll_bar_set_handle (bar, new_start, new_end, 0);
bar->dragging = -1;
}
#endif
XSETINT (emacs_event->x, y);
XSETINT (emacs_event->y, top_range);
}
}
#ifndef USE_TOOLKIT_SCROLL_BARS
/* Handle some mouse motion while someone is dragging the scroll bar.
This may be called from a signal handler, so we have to ignore GC
mark bits. */
static void
x_scroll_bar_note_movement (struct scroll_bar *bar,
const XMotionEvent *event)
{
struct frame *f = XFRAME (XWINDOW (bar->window)->frame);
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
dpyinfo->last_mouse_movement_time = event->time;
dpyinfo->last_mouse_scroll_bar = bar;
f->mouse_moved = 1;
/* If we're dragging the bar, display it. */
if (bar->dragging != -1)
{
/* Where should the handle be now? */
int new_start = event->y - bar->dragging;
if (new_start != bar->start)
{
int new_end = new_start + bar->end - bar->start;
x_scroll_bar_set_handle (bar, new_start, new_end, 0);
}
}
}
#endif /* !USE_TOOLKIT_SCROLL_BARS */
/* Return information to the user about the current position of the mouse
on the scroll bar. */
static void
x_scroll_bar_report_motion (struct frame **fp, Lisp_Object *bar_window,
enum scroll_bar_part *part, Lisp_Object *x,
Lisp_Object *y, Time *timestamp)
{
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (*fp);
struct scroll_bar *bar = dpyinfo->last_mouse_scroll_bar;
Window w = bar->x_window;
struct frame *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
int win_x, win_y;
Window dummy_window;
int dummy_coord;
unsigned int dummy_mask;
block_input ();
/* Get the mouse's position relative to the scroll bar window, and
report that. */
if (XQueryPointer (FRAME_X_DISPLAY (f), w,
/* Root, child, root x and root y. */
&dummy_window, &dummy_window,
&dummy_coord, &dummy_coord,
/* Position relative to scroll bar. */
&win_x, &win_y,
/* Mouse buttons and modifier keys. */
&dummy_mask))
{
int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (f, bar->height);
win_y -= VERTICAL_SCROLL_BAR_TOP_BORDER;
if (bar->dragging != -1)
win_y -= bar->dragging;
if (win_y < 0)
win_y = 0;
if (win_y > top_range)
win_y = top_range;
*fp = f;
*bar_window = bar->window;
if (bar->dragging != -1)
*part = scroll_bar_handle;
else if (win_y < bar->start)
*part = scroll_bar_above_handle;
else if (win_y < bar->end + VERTICAL_SCROLL_BAR_MIN_HANDLE)
*part = scroll_bar_handle;
else
*part = scroll_bar_below_handle;
XSETINT (*x, win_y);
XSETINT (*y, top_range);
f->mouse_moved = 0;
dpyinfo->last_mouse_scroll_bar = NULL;
*timestamp = dpyinfo->last_mouse_movement_time;
}
unblock_input ();
}
/* The screen has been cleared so we may have changed foreground or
background colors, and the scroll bars may need to be redrawn.
Clear out the scroll bars, and ask for expose events, so we can
redraw them. */
static void
x_scroll_bar_clear (struct frame *f)
{
#ifndef USE_TOOLKIT_SCROLL_BARS
Lisp_Object bar;
/* We can have scroll bars even if this is 0,
if we just turned off scroll bar mode.
But in that case we should not clear them. */
if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
for (bar = FRAME_SCROLL_BARS (f); VECTORP (bar);
bar = XSCROLL_BAR (bar)->next)
XClearArea (FRAME_X_DISPLAY (f),
XSCROLL_BAR (bar)->x_window,
0, 0, 0, 0, True);
#endif /* not USE_TOOLKIT_SCROLL_BARS */
}
#ifdef ENABLE_CHECKING
/* Record the last 100 characters stored
to help debug the loss-of-chars-during-GC problem. */
static int temp_index;
static short temp_buffer[100];
#define STORE_KEYSYM_FOR_DEBUG(keysym) \
if (temp_index == sizeof temp_buffer / sizeof (short)) \
temp_index = 0; \
temp_buffer[temp_index++] = (keysym)
#else /* not ENABLE_CHECKING */
#define STORE_KEYSYM_FOR_DEBUG(keysym) ((void)0)
#endif /* ENABLE_CHECKING */
/* Set this to nonzero to fake an "X I/O error"
on a particular display. */
static struct x_display_info *XTread_socket_fake_io_error;
/* When we find no input here, we occasionally do a no-op command
to verify that the X server is still running and we can still talk with it.
We try all the open displays, one by one.
This variable is used for cycling thru the displays. */
static struct x_display_info *next_noop_dpyinfo;
enum
{
X_EVENT_NORMAL,
X_EVENT_GOTO_OUT,
X_EVENT_DROP
};
/* Filter events for the current X input method.
DPYINFO is the display this event is for.
EVENT is the X event to filter.
Returns non-zero if the event was filtered, caller shall not process
this event further.
Returns zero if event is wasn't filtered. */
#ifdef HAVE_X_I18N
static int
x_filter_event (struct x_display_info *dpyinfo, XEvent *event)
{
/* XFilterEvent returns non-zero if the input method has
consumed the event. We pass the frame's X window to
XFilterEvent because that's the one for which the IC
was created. */
struct frame *f1 = x_any_window_to_frame (dpyinfo,
event->xclient.window);
return XFilterEvent (event, f1 ? FRAME_X_WINDOW (f1) : None);
}
#endif
#ifdef USE_GTK
static int current_count;
static int current_finish;
static struct input_event *current_hold_quit;
/* This is the filter function invoked by the GTK event loop.
It is invoked before the XEvent is translated to a GdkEvent,
so we have a chance to act on the event before GTK. */
static GdkFilterReturn
event_handler_gdk (GdkXEvent *gxev, GdkEvent *ev, gpointer data)
{
XEvent *xev = (XEvent *) gxev;
block_input ();
if (current_count >= 0)
{
struct x_display_info *dpyinfo;
dpyinfo = x_display_info_for_display (xev->xany.display);
#ifdef HAVE_X_I18N
/* Filter events for the current X input method.
GTK calls XFilterEvent but not for key press and release,
so we do it here. */
if ((xev->type == KeyPress || xev->type == KeyRelease)
&& dpyinfo
&& x_filter_event (dpyinfo, xev))
{
unblock_input ();
return GDK_FILTER_REMOVE;
}
#endif
if (! dpyinfo)
current_finish = X_EVENT_NORMAL;
else
current_count
+= handle_one_xevent (dpyinfo, xev, ¤t_finish,
current_hold_quit);
}
else
current_finish = x_dispatch_event (xev, xev->xany.display);
unblock_input ();
if (current_finish == X_EVENT_GOTO_OUT || current_finish == X_EVENT_DROP)
return GDK_FILTER_REMOVE;
return GDK_FILTER_CONTINUE;
}
#endif /* USE_GTK */
static void xembed_send_message (struct frame *f, Time,
enum xembed_message,
long detail, long data1, long data2);
/* Handles the XEvent EVENT on display DPYINFO.
*FINISH is X_EVENT_GOTO_OUT if caller should stop reading events.
*FINISH is zero if caller should continue reading events.
*FINISH is X_EVENT_DROP if event should not be passed to the toolkit.
*EVENT is unchanged unless we're processing KeyPress event.
We return the number of characters stored into the buffer. */
static int
handle_one_xevent (struct x_display_info *dpyinfo,
const XEvent *event,
int *finish, struct input_event *hold_quit)
{
union {
struct input_event ie;
struct selection_input_event sie;
} inev;
int count = 0;
int do_help = 0;
ptrdiff_t nbytes = 0;
struct frame *any, *f = NULL;
struct coding_system coding;
Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
/* This holds the state XLookupString needs to implement dead keys
and other tricks known as "compose processing". _X Window System_
says that a portable program can't use this, but Stephen Gildea assures
me that letting the compiler initialize it to zeros will work okay. */
static XComposeStatus compose_status;
USE_SAFE_ALLOCA;
*finish = X_EVENT_NORMAL;
EVENT_INIT (inev.ie);
inev.ie.kind = NO_EVENT;
inev.ie.arg = Qnil;
any = x_any_window_to_frame (dpyinfo, event->xany.window);
if (any && any->wait_event_type == event->type)
any->wait_event_type = 0; /* Indicates we got it. */
switch (event->type)
{
case ClientMessage:
{
if (event->xclient.message_type == dpyinfo->Xatom_wm_protocols
&& event->xclient.format == 32)
{
if (event->xclient.data.l[0] == dpyinfo->Xatom_wm_take_focus)
{
/* Use the value returned by x_any_window_to_frame
because this could be the shell widget window
if the frame has no title bar. */
f = any;
#ifdef HAVE_X_I18N
/* Not quite sure this is needed -pd */
if (f && FRAME_XIC (f))
XSetICFocus (FRAME_XIC (f));
#endif
#if 0 /* Emacs sets WM hints whose `input' field is `true'. This
instructs the WM to set the input focus automatically for
Emacs with a call to XSetInputFocus. Setting WM_TAKE_FOCUS
tells the WM to send us a ClientMessage WM_TAKE_FOCUS after
it has set the focus. So, XSetInputFocus below is not
needed.
The call to XSetInputFocus below has also caused trouble. In
cases where the XSetInputFocus done by the WM and the one
below are temporally close (on a fast machine), the call
below can generate additional FocusIn events which confuse
Emacs. */
/* Since we set WM_TAKE_FOCUS, we must call
XSetInputFocus explicitly. But not if f is null,
since that might be an event for a deleted frame. */
if (f)
{
Display *d = event->xclient.display;
/* Catch and ignore errors, in case window has been
iconified by a window manager such as GWM. */
x_catch_errors (d);
XSetInputFocus (d, event->xclient.window,
/* The ICCCM says this is
the only valid choice. */
RevertToParent,
event->xclient.data.l[1]);
/* This is needed to detect the error
if there is an error. */
XSync (d, False);
x_uncatch_errors ();
}
/* Not certain about handling scroll bars here */
#endif /* 0 */
goto done;
}
if (event->xclient.data.l[0] == dpyinfo->Xatom_wm_save_yourself)
{
/* Save state modify the WM_COMMAND property to
something which can reinstate us. This notifies
the session manager, who's looking for such a
PropertyNotify. Can restart processing when
a keyboard or mouse event arrives. */
/* If we have a session manager, don't set this.
KDE will then start two Emacsen, one for the
session manager and one for this. */
#ifdef HAVE_X_SM
if (! x_session_have_connection ())
#endif
{
f = x_top_window_to_frame (dpyinfo,
event->xclient.window);
/* This is just so we only give real data once
for a single Emacs process. */
if (f == SELECTED_FRAME ())
XSetCommand (FRAME_X_DISPLAY (f),
event->xclient.window,
initial_argv, initial_argc);
else if (f)
XSetCommand (FRAME_X_DISPLAY (f),
event->xclient.window,
0, 0);
}
goto done;
}
if (event->xclient.data.l[0] == dpyinfo->Xatom_wm_delete_window)
{
f = any;
if (!f)
goto OTHER; /* May be a dialog that is to be removed */
inev.ie.kind = DELETE_WINDOW_EVENT;
XSETFRAME (inev.ie.frame_or_window, f);
goto done;
}
goto done;
}
if (event->xclient.message_type == dpyinfo->Xatom_wm_configure_denied)
goto done;
if (event->xclient.message_type == dpyinfo->Xatom_wm_window_moved)
{
int new_x, new_y;
f = x_window_to_frame (dpyinfo, event->xclient.window);
new_x = event->xclient.data.s[0];
new_y = event->xclient.data.s[1];
if (f)
{
f->left_pos = new_x;
f->top_pos = new_y;
}
goto done;
}
#ifdef HACK_EDITRES
if (event->xclient.message_type == dpyinfo->Xatom_editres)
{
f = any;
if (f)
_XEditResCheckMessages (f->output_data.x->widget,
NULL, (XEvent *) event, NULL);
goto done;
}
#endif /* HACK_EDITRES */
if (event->xclient.message_type == dpyinfo->Xatom_DONE
|| event->xclient.message_type == dpyinfo->Xatom_PAGE)
{
/* Ghostview job completed. Kill it. We could
reply with "Next" if we received "Page", but we
currently never do because we are interested in
images, only, which should have 1 page. */
Pixmap pixmap = (Pixmap) event->xclient.data.l[1];
f = x_window_to_frame (dpyinfo, event->xclient.window);
if (!f)
goto OTHER;
x_kill_gs_process (pixmap, f);
expose_frame (f, 0, 0, 0, 0);
goto done;
}
#ifdef USE_TOOLKIT_SCROLL_BARS
/* Scroll bar callbacks send a ClientMessage from which
we construct an input_event. */
if (event->xclient.message_type == dpyinfo->Xatom_Scrollbar)
{
x_scroll_bar_to_input_event (event, &inev.ie);
*finish = X_EVENT_GOTO_OUT;
goto done;
}
#endif /* USE_TOOLKIT_SCROLL_BARS */
/* XEmbed messages from the embedder (if any). */
if (event->xclient.message_type == dpyinfo->Xatom_XEMBED)
{
enum xembed_message msg = event->xclient.data.l[1];
if (msg == XEMBED_FOCUS_IN || msg == XEMBED_FOCUS_OUT)
x_detect_focus_change (dpyinfo, any, event, &inev.ie);
*finish = X_EVENT_GOTO_OUT;
goto done;
}
xft_settings_event (dpyinfo, event);
f = any;
if (!f)
goto OTHER;
if (x_handle_dnd_message (f, &event->xclient, dpyinfo, &inev.ie))
*finish = X_EVENT_DROP;
}
break;
case SelectionNotify:
dpyinfo->last_user_time = event->xselection.time;
#ifdef USE_X_TOOLKIT
if (! x_window_to_frame (dpyinfo, event->xselection.requestor))
goto OTHER;
#endif /* not USE_X_TOOLKIT */
x_handle_selection_notify (&event->xselection);
break;
case SelectionClear: /* Someone has grabbed ownership. */
dpyinfo->last_user_time = event->xselectionclear.time;
#ifdef USE_X_TOOLKIT
if (! x_window_to_frame (dpyinfo, event->xselectionclear.window))
goto OTHER;
#endif /* USE_X_TOOLKIT */
{
const XSelectionClearEvent *eventp = &event->xselectionclear;
inev.ie.kind = SELECTION_CLEAR_EVENT;
SELECTION_EVENT_DISPLAY (&inev.sie) = eventp->display;
SELECTION_EVENT_SELECTION (&inev.sie) = eventp->selection;
SELECTION_EVENT_TIME (&inev.sie) = eventp->time;
}
break;
case SelectionRequest: /* Someone wants our selection. */
dpyinfo->last_user_time = event->xselectionrequest.time;
#ifdef USE_X_TOOLKIT
if (!x_window_to_frame (dpyinfo, event->xselectionrequest.owner))
goto OTHER;
#endif /* USE_X_TOOLKIT */
{
const XSelectionRequestEvent *eventp = &event->xselectionrequest;
inev.ie.kind = SELECTION_REQUEST_EVENT;
SELECTION_EVENT_DISPLAY (&inev.sie) = eventp->display;
SELECTION_EVENT_REQUESTOR (&inev.sie) = eventp->requestor;
SELECTION_EVENT_SELECTION (&inev.sie) = eventp->selection;
SELECTION_EVENT_TARGET (&inev.sie) = eventp->target;
SELECTION_EVENT_PROPERTY (&inev.sie) = eventp->property;
SELECTION_EVENT_TIME (&inev.sie) = eventp->time;
}
break;
case PropertyNotify:
dpyinfo->last_user_time = event->xproperty.time;
f = x_top_window_to_frame (dpyinfo, event->xproperty.window);
if (f && event->xproperty.atom == dpyinfo->Xatom_net_wm_state)
if (x_handle_net_wm_state (f, &event->xproperty)
&& FRAME_ICONIFIED_P (f)
&& f->output_data.x->net_wm_state_hidden_seen)
{
/* Gnome shell does not iconify us when C-z is pressed.
It hides the frame. So if our state says we aren't
hidden anymore, treat it as deiconified. */
SET_FRAME_VISIBLE (f, 1);
SET_FRAME_ICONIFIED (f, 0);
f->output_data.x->has_been_visible = 1;
f->output_data.x->net_wm_state_hidden_seen = 0;
inev.ie.kind = DEICONIFY_EVENT;
XSETFRAME (inev.ie.frame_or_window, f);
}
x_handle_property_notify (&event->xproperty);
xft_settings_event (dpyinfo, event);
goto OTHER;
case ReparentNotify:
f = x_top_window_to_frame (dpyinfo, event->xreparent.window);
if (f)
{
f->output_data.x->parent_desc = event->xreparent.parent;
x_real_positions (f, &f->left_pos, &f->top_pos);
/* Perhaps reparented due to a WM restart. Reset this. */
FRAME_DISPLAY_INFO (f)->wm_type = X_WMTYPE_UNKNOWN;
FRAME_DISPLAY_INFO (f)->net_supported_window = 0;
x_set_frame_alpha (f);
}
goto OTHER;
case Expose:
f = x_window_to_frame (dpyinfo, event->xexpose.window);
if (f)
{
if (!FRAME_VISIBLE_P (f))
{
SET_FRAME_VISIBLE (f, 1);
SET_FRAME_ICONIFIED (f, 0);
f->output_data.x->has_been_visible = 1;
SET_FRAME_GARBAGED (f);
}
else
{
#ifdef USE_GTK
/* This seems to be needed for GTK 2.6 and later, see
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15398. */
x_clear_area (event->xexpose.display,
event->xexpose.window,
event->xexpose.x, event->xexpose.y,
event->xexpose.width, event->xexpose.height);
#endif
expose_frame (f, event->xexpose.x, event->xexpose.y,
event->xexpose.width, event->xexpose.height);
}
}
else
{
#ifndef USE_TOOLKIT_SCROLL_BARS
struct scroll_bar *bar;
#endif
#if defined USE_LUCID
/* Submenus of the Lucid menu bar aren't widgets
themselves, so there's no way to dispatch events
to them. Recognize this case separately. */
{
Widget widget = x_window_to_menu_bar (event->xexpose.window);
if (widget)
xlwmenu_redisplay (widget);
}
#endif /* USE_LUCID */
#ifdef USE_TOOLKIT_SCROLL_BARS
/* Dispatch event to the widget. */
goto OTHER;
#else /* not USE_TOOLKIT_SCROLL_BARS */
bar = x_window_to_scroll_bar (event->xexpose.display,
event->xexpose.window);
if (bar)
x_scroll_bar_expose (bar, event);
#ifdef USE_X_TOOLKIT
else
goto OTHER;
#endif /* USE_X_TOOLKIT */
#endif /* not USE_TOOLKIT_SCROLL_BARS */
}
break;
case GraphicsExpose: /* This occurs when an XCopyArea's
source area was obscured or not
available. */
f = x_window_to_frame (dpyinfo, event->xgraphicsexpose.drawable);
if (f)
expose_frame (f, event->xgraphicsexpose.x,
event->xgraphicsexpose.y,
event->xgraphicsexpose.width,
event->xgraphicsexpose.height);
#ifdef USE_X_TOOLKIT
else
goto OTHER;
#endif /* USE_X_TOOLKIT */
break;
case NoExpose: /* This occurs when an XCopyArea's
source area was completely
available. */
break;
case UnmapNotify:
/* Redo the mouse-highlight after the tooltip has gone. */
if (event->xunmap.window == tip_window)
{
tip_window = 0;
x_redo_mouse_highlight (dpyinfo);
}
f = x_top_window_to_frame (dpyinfo, event->xunmap.window);
if (f) /* F may no longer exist if
the frame was deleted. */
{
bool visible = FRAME_VISIBLE_P (f);
/* While a frame is unmapped, display generation is
disabled; you don't want to spend time updating a
display that won't ever be seen. */
SET_FRAME_VISIBLE (f, 0);
/* We can't distinguish, from the event, whether the window
has become iconified or invisible. So assume, if it
was previously visible, than now it is iconified.
But x_make_frame_invisible clears both
the visible flag and the iconified flag;
and that way, we know the window is not iconified now. */
if (visible || FRAME_ICONIFIED_P (f))
{
SET_FRAME_ICONIFIED (f, 1);
inev.ie.kind = ICONIFY_EVENT;
XSETFRAME (inev.ie.frame_or_window, f);
}
}
goto OTHER;
case MapNotify:
if (event->xmap.window == tip_window)
/* The tooltip has been drawn already. Avoid
the SET_FRAME_GARBAGED below. */
goto OTHER;
/* We use x_top_window_to_frame because map events can
come for sub-windows and they don't mean that the
frame is visible. */
f = x_top_window_to_frame (dpyinfo, event->xmap.window);
if (f)
{
bool iconified = FRAME_ICONIFIED_P (f);
/* Check if fullscreen was specified before we where mapped the
first time, i.e. from the command line. */
if (!f->output_data.x->has_been_visible)
x_check_fullscreen (f);
SET_FRAME_VISIBLE (f, 1);
SET_FRAME_ICONIFIED (f, 0);
f->output_data.x->has_been_visible = 1;
if (iconified)
{
inev.ie.kind = DEICONIFY_EVENT;
XSETFRAME (inev.ie.frame_or_window, f);
}
else if (! NILP (Vframe_list) && ! NILP (XCDR (Vframe_list)))
/* Force a redisplay sooner or later to update the
frame titles in case this is the second frame. */
record_asynch_buffer_change ();
#ifdef USE_GTK
xg_frame_resized (f, -1, -1);
#endif
}
goto OTHER;
case KeyPress:
dpyinfo->last_user_time = event->xkey.time;
ignore_next_mouse_click_timeout = 0;
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
/* Dispatch KeyPress events when in menu. */
if (popup_activated ())
goto OTHER;
#endif
f = any;
#if ! defined (USE_GTK)
/* If mouse-highlight is an integer, input clears out
mouse highlighting. */
if (!hlinfo->mouse_face_hidden && INTEGERP (Vmouse_highlight)
&& (f == 0
|| !EQ (f->tool_bar_window, hlinfo->mouse_face_window)))
{
clear_mouse_face (hlinfo);
hlinfo->mouse_face_hidden = 1;
}
#endif
#if defined USE_MOTIF && defined USE_TOOLKIT_SCROLL_BARS
if (f == 0)
{
/* Scroll bars consume key events, but we want
the keys to go to the scroll bar's frame. */
Widget widget = XtWindowToWidget (dpyinfo->display,
event->xkey.window);
if (widget && XmIsScrollBar (widget))
{
widget = XtParent (widget);
f = x_any_window_to_frame (dpyinfo, XtWindow (widget));
}
}
#endif /* USE_MOTIF and USE_TOOLKIT_SCROLL_BARS */
if (f != 0)
{
KeySym keysym, orig_keysym;
/* al%imercury@uunet.uu.net says that making this 81
instead of 80 fixed a bug whereby meta chars made
his Emacs hang.
It seems that some version of XmbLookupString has
a bug of not returning XBufferOverflow in
status_return even if the input is too long to
fit in 81 bytes. So, we must prepare sufficient
bytes for copy_buffer. 513 bytes (256 chars for
two-byte character set) seems to be a fairly good
approximation. -- 2000.8.10 handa@etl.go.jp */
unsigned char copy_buffer[513];
unsigned char *copy_bufptr = copy_buffer;
int copy_bufsiz = sizeof (copy_buffer);
int modifiers;
Lisp_Object coding_system = Qlatin_1;
Lisp_Object c;
/* Event will be modified. */
XKeyEvent xkey = event->xkey;
#ifdef USE_GTK
/* Don't pass keys to GTK. A Tab will shift focus to the
tool bar in GTK 2.4. Keys will still go to menus and
dialogs because in that case popup_activated is nonzero
(see above). */
*finish = X_EVENT_DROP;
#endif
xkey.state |= x_emacs_to_x_modifiers (FRAME_DISPLAY_INFO (f),
extra_keyboard_modifiers);
modifiers = xkey.state;
/* This will have to go some day... */
/* make_lispy_event turns chars into control chars.
Don't do it here because XLookupString is too eager. */
xkey.state &= ~ControlMask;
xkey.state &= ~(dpyinfo->meta_mod_mask
| dpyinfo->super_mod_mask
| dpyinfo->hyper_mod_mask
| dpyinfo->alt_mod_mask);
/* In case Meta is ComposeCharacter,
clear its status. According to Markus Ehrnsperger
Markus.Ehrnsperger@lehrstuhl-bross.physik.uni-muenchen.de
this enables ComposeCharacter to work whether or
not it is combined with Meta. */
if (modifiers & dpyinfo->meta_mod_mask)
memset (&compose_status, 0, sizeof (compose_status));
#ifdef HAVE_X_I18N
if (FRAME_XIC (f))
{
Status status_return;
coding_system = Vlocale_coding_system;
nbytes = XmbLookupString (FRAME_XIC (f),
&xkey, (char *) copy_bufptr,
copy_bufsiz, &keysym,
&status_return);
if (status_return == XBufferOverflow)
{
copy_bufsiz = nbytes + 1;
copy_bufptr = alloca (copy_bufsiz);
nbytes = XmbLookupString (FRAME_XIC (f),
&xkey, (char *) copy_bufptr,
copy_bufsiz, &keysym,
&status_return);
}
/* Xutf8LookupString is a new but already deprecated interface. -stef */
if (status_return == XLookupNone)
break;
else if (status_return == XLookupChars)
{
keysym = NoSymbol;
modifiers = 0;
}
else if (status_return != XLookupKeySym
&& status_return != XLookupBoth)
emacs_abort ();
}
else
nbytes = XLookupString (&xkey, (char *) copy_bufptr,
copy_bufsiz, &keysym,
&compose_status);
#else
nbytes = XLookupString (&xkey, (char *) copy_bufptr,
copy_bufsiz, &keysym,
&compose_status);
#endif
/* If not using XIM/XIC, and a compose sequence is in progress,
we break here. Otherwise, chars_matched is always 0. */
if (compose_status.chars_matched > 0 && nbytes == 0)
break;
memset (&compose_status, 0, sizeof (compose_status));
orig_keysym = keysym;
/* Common for all keysym input events. */
XSETFRAME (inev.ie.frame_or_window, f);
inev.ie.modifiers
= x_x_to_emacs_modifiers (FRAME_DISPLAY_INFO (f), modifiers);
inev.ie.timestamp = xkey.time;
/* First deal with keysyms which have defined
translations to characters. */
if (keysym >= 32 && keysym < 128)
/* Avoid explicitly decoding each ASCII character. */
{
inev.ie.kind = ASCII_KEYSTROKE_EVENT;
inev.ie.code = keysym;
goto done_keysym;
}
/* Keysyms directly mapped to Unicode characters. */
if (keysym >= 0x01000000 && keysym <= 0x0110FFFF)
{
if (keysym < 0x01000080)
inev.ie.kind = ASCII_KEYSTROKE_EVENT;
else
inev.ie.kind = MULTIBYTE_CHAR_KEYSTROKE_EVENT;
inev.ie.code = keysym & 0xFFFFFF;
goto done_keysym;
}
/* Now non-ASCII. */
if (HASH_TABLE_P (Vx_keysym_table)
&& (c = Fgethash (make_number (keysym),
Vx_keysym_table,
Qnil),
NATNUMP (c)))
{
inev.ie.kind = (SINGLE_BYTE_CHAR_P (XFASTINT (c))
? ASCII_KEYSTROKE_EVENT
: MULTIBYTE_CHAR_KEYSTROKE_EVENT);
inev.ie.code = XFASTINT (c);
goto done_keysym;
}
/* Random non-modifier sorts of keysyms. */
if (((keysym >= XK_BackSpace && keysym <= XK_Escape)
|| keysym == XK_Delete
#ifdef XK_ISO_Left_Tab
|| (keysym >= XK_ISO_Left_Tab
&& keysym <= XK_ISO_Enter)
#endif
|| IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */
|| IsMiscFunctionKey (keysym) /* 0xff60 <= x < VARIES */
#ifdef HPUX
/* This recognizes the "extended function
keys". It seems there's no cleaner way.
Test IsModifierKey to avoid handling
mode_switch incorrectly. */
|| (XK_Select <= keysym && keysym < XK_KP_Space)
#endif
#ifdef XK_dead_circumflex
|| orig_keysym == XK_dead_circumflex
#endif
#ifdef XK_dead_grave
|| orig_keysym == XK_dead_grave
#endif
#ifdef XK_dead_tilde
|| orig_keysym == XK_dead_tilde
#endif
#ifdef XK_dead_diaeresis
|| orig_keysym == XK_dead_diaeresis
#endif
#ifdef XK_dead_macron
|| orig_keysym == XK_dead_macron
#endif
#ifdef XK_dead_degree
|| orig_keysym == XK_dead_degree
#endif
#ifdef XK_dead_acute
|| orig_keysym == XK_dead_acute
#endif
#ifdef XK_dead_cedilla
|| orig_keysym == XK_dead_cedilla
#endif
#ifdef XK_dead_breve
|| orig_keysym == XK_dead_breve
#endif
#ifdef XK_dead_ogonek
|| orig_keysym == XK_dead_ogonek
#endif
#ifdef XK_dead_caron
|| orig_keysym == XK_dead_caron
#endif
#ifdef XK_dead_doubleacute
|| orig_keysym == XK_dead_doubleacute
#endif
#ifdef XK_dead_abovedot
|| orig_keysym == XK_dead_abovedot
#endif
|| IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */
|| IsFunctionKey (keysym) /* 0xffbe <= x < 0xffe1 */
/* Any "vendor-specific" key is ok. */
|| (orig_keysym & (1 << 28))
|| (keysym != NoSymbol && nbytes == 0))
&& ! (IsModifierKey (orig_keysym)
/* The symbols from XK_ISO_Lock
to XK_ISO_Last_Group_Lock
don't have real modifiers but
should be treated similarly to
Mode_switch by Emacs. */
#if defined XK_ISO_Lock && defined XK_ISO_Last_Group_Lock
|| (XK_ISO_Lock <= orig_keysym
&& orig_keysym <= XK_ISO_Last_Group_Lock)
#endif
))
{
STORE_KEYSYM_FOR_DEBUG (keysym);
/* make_lispy_event will convert this to a symbolic
key. */
inev.ie.kind = NON_ASCII_KEYSTROKE_EVENT;
inev.ie.code = keysym;
goto done_keysym;
}
{ /* Raw bytes, not keysym. */
ptrdiff_t i;
int nchars, len;
for (i = 0, nchars = 0; i < nbytes; i++)
{
if (ASCII_BYTE_P (copy_bufptr[i]))
nchars++;
STORE_KEYSYM_FOR_DEBUG (copy_bufptr[i]);
}
if (nchars < nbytes)
{
/* Decode the input data. */
/* The input should be decoded with `coding_system'
which depends on which X*LookupString function
we used just above and the locale. */
setup_coding_system (coding_system, &coding);
coding.src_multibyte = 0;
coding.dst_multibyte = 1;
/* The input is converted to events, thus we can't
handle composition. Anyway, there's no XIM that
gives us composition information. */
coding.common_flags &= ~CODING_ANNOTATION_MASK;
SAFE_NALLOCA (coding.destination, MAX_MULTIBYTE_LENGTH,
nbytes);
coding.dst_bytes = MAX_MULTIBYTE_LENGTH * nbytes;
coding.mode |= CODING_MODE_LAST_BLOCK;
decode_coding_c_string (&coding, copy_bufptr, nbytes, Qnil);
nbytes = coding.produced;
nchars = coding.produced_char;
copy_bufptr = coding.destination;
}
/* Convert the input data to a sequence of
character events. */
for (i = 0; i < nbytes; i += len)
{
int ch;
if (nchars == nbytes)
ch = copy_bufptr[i], len = 1;
else
ch = STRING_CHAR_AND_LENGTH (copy_bufptr + i, len);
inev.ie.kind = (SINGLE_BYTE_CHAR_P (ch)
? ASCII_KEYSTROKE_EVENT
: MULTIBYTE_CHAR_KEYSTROKE_EVENT);
inev.ie.code = ch;
kbd_buffer_store_event_hold (&inev.ie, hold_quit);
}
count += nchars;
inev.ie.kind = NO_EVENT; /* Already stored above. */
if (keysym == NoSymbol)
break;
}
/* FIXME: check side effects and remove this. */
((XEvent *) event)->xkey = xkey;
}
done_keysym:
#ifdef HAVE_X_I18N
/* Don't dispatch this event since XtDispatchEvent calls
XFilterEvent, and two calls in a row may freeze the
client. */
break;
#else
goto OTHER;
#endif
case KeyRelease:
dpyinfo->last_user_time = event->xkey.time;
#ifdef HAVE_X_I18N
/* Don't dispatch this event since XtDispatchEvent calls
XFilterEvent, and two calls in a row may freeze the
client. */
break;
#else
goto OTHER;
#endif
case EnterNotify:
dpyinfo->last_user_time = event->xcrossing.time;
x_detect_focus_change (dpyinfo, any, event, &inev.ie);
f = any;
if (f && x_mouse_click_focus_ignore_position)
ignore_next_mouse_click_timeout = event->xmotion.time + 200;
/* EnterNotify counts as mouse movement,
so update things that depend on mouse position. */
if (f && !f->output_data.x->hourglass_p)
note_mouse_movement (f, &event->xmotion);
#ifdef USE_GTK
/* We may get an EnterNotify on the buttons in the toolbar. In that
case we moved out of any highlighted area and need to note this. */
if (!f && dpyinfo->last_mouse_glyph_frame)
note_mouse_movement (dpyinfo->last_mouse_glyph_frame, &event->xmotion);
#endif
goto OTHER;
case FocusIn:
x_detect_focus_change (dpyinfo, any, event, &inev.ie);
goto OTHER;
case LeaveNotify:
dpyinfo->last_user_time = event->xcrossing.time;
x_detect_focus_change (dpyinfo, any, event, &inev.ie);
f = x_top_window_to_frame (dpyinfo, event->xcrossing.window);
if (f)
{
if (f == hlinfo->mouse_face_mouse_frame)
{
/* If we move outside the frame, then we're
certainly no longer on any text in the frame. */
clear_mouse_face (hlinfo);
hlinfo->mouse_face_mouse_frame = 0;
}
/* Generate a nil HELP_EVENT to cancel a help-echo.
Do it only if there's something to cancel.
Otherwise, the startup message is cleared when
the mouse leaves the frame. */
if (any_help_event_p)
do_help = -1;
}
#ifdef USE_GTK
/* See comment in EnterNotify above */
else if (dpyinfo->last_mouse_glyph_frame)
note_mouse_movement (dpyinfo->last_mouse_glyph_frame, &event->xmotion);
#endif
goto OTHER;
case FocusOut:
x_detect_focus_change (dpyinfo, any, event, &inev.ie);
goto OTHER;
case MotionNotify:
{
dpyinfo->last_user_time = event->xmotion.time;
previous_help_echo_string = help_echo_string;
help_echo_string = Qnil;
f = (x_mouse_grabbed (dpyinfo) ? dpyinfo->last_mouse_frame
: x_window_to_frame (dpyinfo, event->xmotion.window));
if (hlinfo->mouse_face_hidden)
{
hlinfo->mouse_face_hidden = 0;
clear_mouse_face (hlinfo);
}
#ifdef USE_GTK
if (f && xg_event_is_for_scrollbar (f, event))
f = 0;
#endif
if (f)
{
/* Generate SELECT_WINDOW_EVENTs when needed.
Don't let popup menus influence things (bug#1261). */
if (!NILP (Vmouse_autoselect_window) && !popup_activated ())
{
static Lisp_Object last_mouse_window;
Lisp_Object window = window_from_coordinates
(f, event->xmotion.x, event->xmotion.y, 0, 0);
/* Window will be selected only when it is not selected now and
last mouse movement event was not in it. Minibuffer window
will be selected only when it is active. */
if (WINDOWP (window)
&& !EQ (window, last_mouse_window)
&& !EQ (window, selected_window)
/* For click-to-focus window managers
create event iff we don't leave the
selected frame. */
&& (focus_follows_mouse
|| (EQ (XWINDOW (window)->frame,
XWINDOW (selected_window)->frame))))
{
inev.ie.kind = SELECT_WINDOW_EVENT;
inev.ie.frame_or_window = window;
}
/* Remember the last window where we saw the mouse. */
last_mouse_window = window;
}
if (!note_mouse_movement (f, &event->xmotion))
help_echo_string = previous_help_echo_string;
}
else
{
#ifndef USE_TOOLKIT_SCROLL_BARS
struct scroll_bar *bar
= x_window_to_scroll_bar (event->xmotion.display,
event->xmotion.window);
if (bar)
x_scroll_bar_note_movement (bar, &event->xmotion);
#endif /* USE_TOOLKIT_SCROLL_BARS */
/* If we move outside the frame, then we're
certainly no longer on any text in the frame. */
clear_mouse_face (hlinfo);
}
/* If the contents of the global variable help_echo_string
has changed, generate a HELP_EVENT. */
if (!NILP (help_echo_string)
|| !NILP (previous_help_echo_string))
do_help = 1;
goto OTHER;
}
case ConfigureNotify:
f = x_top_window_to_frame (dpyinfo, event->xconfigure.window);
#ifdef USE_GTK
if (!f
&& (f = any)
&& event->xconfigure.window == FRAME_X_WINDOW (f))
{
xg_frame_resized (f, event->xconfigure.width,
event->xconfigure.height);
f = 0;
}
#endif
if (f)
{
#ifndef USE_X_TOOLKIT
#ifndef USE_GTK
int width = FRAME_PIXEL_TO_TEXT_WIDTH (f, event->xconfigure.width);
int height = FRAME_PIXEL_TO_TEXT_HEIGHT (f, event->xconfigure.height);
/* In the toolkit version, change_frame_size
is called by the code that handles resizing
of the EmacsFrame widget. */
/* Even if the number of character rows and columns has
not changed, the font size may have changed, so we need
to check the pixel dimensions as well. */
if (width != FRAME_TEXT_WIDTH (f)
|| height != FRAME_TEXT_HEIGHT (f)
|| event->xconfigure.width != FRAME_PIXEL_WIDTH (f)
|| event->xconfigure.height != FRAME_PIXEL_HEIGHT (f))
{
change_frame_size (f, width, height, 0, 1, 0, 1);
x_clear_under_internal_border (f);
SET_FRAME_GARBAGED (f);
cancel_mouse_face (f);
}
/** FRAME_PIXEL_WIDTH (f) = event->xconfigure.width; **/
/** FRAME_PIXEL_HEIGHT (f) = event->xconfigure.height; **/
#endif /* not USE_GTK */
#endif
#ifdef USE_GTK
/* GTK creates windows but doesn't map them.
Only get real positions when mapped. */
if (FRAME_GTK_OUTER_WIDGET (f)
&& gtk_widget_get_mapped (FRAME_GTK_OUTER_WIDGET (f)))
#endif
x_real_positions (f, &f->left_pos, &f->top_pos);
#ifdef HAVE_X_I18N
if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & XIMStatusArea))
xic_set_statusarea (f);
#endif
}
goto OTHER;
case ButtonRelease:
case ButtonPress:
{
/* If we decide we want to generate an event to be seen
by the rest of Emacs, we put it here. */
bool tool_bar_p = 0;
memset (&compose_status, 0, sizeof (compose_status));
dpyinfo->last_mouse_glyph_frame = NULL;
dpyinfo->last_user_time = event->xbutton.time;
f = (x_mouse_grabbed (dpyinfo) ? dpyinfo->last_mouse_frame
: x_window_to_frame (dpyinfo, event->xbutton.window));
#ifdef USE_GTK
if (f && xg_event_is_for_scrollbar (f, event))
f = 0;
#endif
if (f)
{
#if ! defined (USE_GTK)
/* Is this in the tool-bar? */
if (WINDOWP (f->tool_bar_window)
&& WINDOW_TOTAL_LINES (XWINDOW (f->tool_bar_window)))
{
Lisp_Object window;
int x = event->xbutton.x;
int y = event->xbutton.y;
window = window_from_coordinates (f, x, y, 0, 1);
tool_bar_p = EQ (window, f->tool_bar_window);
if (tool_bar_p && event->xbutton.button < 4)
handle_tool_bar_click
(f, x, y, event->xbutton.type == ButtonPress,
x_x_to_emacs_modifiers (dpyinfo, event->xbutton.state));
}
#endif /* !USE_GTK */
if (!tool_bar_p)
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
if (! popup_activated ())
#endif
{
if (ignore_next_mouse_click_timeout)
{
if (event->type == ButtonPress
&& event->xbutton.time > ignore_next_mouse_click_timeout)
{
ignore_next_mouse_click_timeout = 0;
construct_mouse_click (&inev.ie, &event->xbutton, f);
}
if (event->type == ButtonRelease)
ignore_next_mouse_click_timeout = 0;
}
else
construct_mouse_click (&inev.ie, &event->xbutton, f);
}
if (FRAME_X_EMBEDDED_P (f))
xembed_send_message (f, event->xbutton.time,
XEMBED_REQUEST_FOCUS, 0, 0, 0);
}
else
{
struct scroll_bar *bar
= x_window_to_scroll_bar (event->xbutton.display,
event->xbutton.window);
#ifdef USE_TOOLKIT_SCROLL_BARS
/* Make the "Ctrl-Mouse-2 splits window" work for toolkit
scroll bars. */
if (bar && event->xbutton.state & ControlMask)
{
x_scroll_bar_handle_click (bar, event, &inev.ie);
*finish = X_EVENT_DROP;
}
#else /* not USE_TOOLKIT_SCROLL_BARS */
if (bar)
x_scroll_bar_handle_click (bar, event, &inev.ie);
#endif /* not USE_TOOLKIT_SCROLL_BARS */
}
if (event->type == ButtonPress)
{
dpyinfo->grabbed |= (1 << event->xbutton.button);
dpyinfo->last_mouse_frame = f;
if (!tool_bar_p)
last_tool_bar_item = -1;
}
else
dpyinfo->grabbed &= ~(1 << event->xbutton.button);
/* Ignore any mouse motion that happened before this event;
any subsequent mouse-movement Emacs events should reflect
only motion after the ButtonPress/Release. */
if (f != 0)
f->mouse_moved = 0;
#if defined (USE_X_TOOLKIT) || defined (USE_GTK)
f = x_menubar_window_to_frame (dpyinfo, event);
/* For a down-event in the menu bar,
don't pass it to Xt right now.
Instead, save it away
and we will pass it to Xt from kbd_buffer_get_event.
That way, we can run some Lisp code first. */
if (! popup_activated ()
#ifdef USE_GTK
/* Gtk+ menus only react to the first three buttons. */
&& event->xbutton.button < 3
#endif
&& f && event->type == ButtonPress
/* Verify the event is really within the menu bar
and not just sent to it due to grabbing. */
&& event->xbutton.x >= 0
&& event->xbutton.x < FRAME_PIXEL_WIDTH (f)
&& event->xbutton.y >= 0
&& event->xbutton.y < f->output_data.x->menubar_height
&& event->xbutton.same_screen)
{
if (!f->output_data.x->saved_menu_event)
f->output_data.x->saved_menu_event = xmalloc (sizeof *event);
*f->output_data.x->saved_menu_event = *event;
inev.ie.kind = MENU_BAR_ACTIVATE_EVENT;
XSETFRAME (inev.ie.frame_or_window, f);
*finish = X_EVENT_DROP;
}
else
goto OTHER;
#endif /* USE_X_TOOLKIT || USE_GTK */
}
break;
case CirculateNotify:
goto OTHER;
case CirculateRequest:
goto OTHER;
case VisibilityNotify:
goto OTHER;
case MappingNotify:
/* Someone has changed the keyboard mapping - update the
local cache. */
switch (event->xmapping.request)
{
case MappingModifier:
x_find_modifier_meanings (dpyinfo);
/* This is meant to fall through. */
case MappingKeyboard:
XRefreshKeyboardMapping ((XMappingEvent *) &event->xmapping);
}
goto OTHER;
case DestroyNotify:
xft_settings_event (dpyinfo, event);
break;
default:
OTHER:
#ifdef USE_X_TOOLKIT
block_input ();
if (*finish != X_EVENT_DROP)
XtDispatchEvent ((XEvent *) event);
unblock_input ();
#endif /* USE_X_TOOLKIT */
break;
}
done:
if (inev.ie.kind != NO_EVENT)
{
kbd_buffer_store_event_hold (&inev.ie, hold_quit);
count++;
}
if (do_help
&& !(hold_quit && hold_quit->kind != NO_EVENT))
{
Lisp_Object frame;
if (f)
XSETFRAME (frame, f);
else
frame = Qnil;
if (do_help > 0)
{
any_help_event_p = 1;
gen_help_event (help_echo_string, frame, help_echo_window,
help_echo_object, help_echo_pos);
}
else
{
help_echo_string = Qnil;
gen_help_event (Qnil, frame, Qnil, Qnil, 0);
}
count++;
}
SAFE_FREE ();
return count;
}
/* Handles the XEvent EVENT on display DISPLAY.
This is used for event loops outside the normal event handling,
i.e. looping while a popup menu or a dialog is posted.
Returns the value handle_one_xevent sets in the finish argument. */
int
x_dispatch_event (XEvent *event, Display *display)
{
struct x_display_info *dpyinfo;
int finish = X_EVENT_NORMAL;
dpyinfo = x_display_info_for_display (display);
if (dpyinfo)
handle_one_xevent (dpyinfo, event, &finish, 0);
return finish;
}
/* Read events coming from the X server.
Return as soon as there are no more events to be read.
Return the number of characters stored into the buffer,
thus pretending to be `read' (except the characters we store
in the keyboard buffer can be multibyte, so are not necessarily
C chars). */
static int
XTread_socket (struct terminal *terminal, struct input_event *hold_quit)
{
int count = 0;
int event_found = 0;
struct x_display_info *dpyinfo = terminal->display_info.x;
block_input ();
/* For debugging, this gives a way to fake an I/O error. */
if (dpyinfo == XTread_socket_fake_io_error)
{
XTread_socket_fake_io_error = 0;
x_io_error_quitter (dpyinfo->display);
}
#ifndef USE_GTK
while (XPending (dpyinfo->display))
{
int finish;
XEvent event;
XNextEvent (dpyinfo->display, &event);
#ifdef HAVE_X_I18N
/* Filter events for the current X input method. */
if (x_filter_event (dpyinfo, &event))
continue;
#endif
event_found = 1;
count += handle_one_xevent (dpyinfo, &event, &finish, hold_quit);
if (finish == X_EVENT_GOTO_OUT)
break;
}
#else /* USE_GTK */
/* For GTK we must use the GTK event loop. But XEvents gets passed
to our filter function above, and then to the big event switch.
We use a bunch of globals to communicate with our filter function,
that is kind of ugly, but it works.
There is no way to do one display at the time, GTK just does events
from all displays. */
while (gtk_events_pending ())
{
current_count = count;
current_hold_quit = hold_quit;
gtk_main_iteration ();
count = current_count;
current_count = -1;
current_hold_quit = 0;
if (current_finish == X_EVENT_GOTO_OUT)
break;
}
#endif /* USE_GTK */
/* On some systems, an X bug causes Emacs to get no more events
when the window is destroyed. Detect that. (1994.) */
if (! event_found)
{
/* Emacs and the X Server eats up CPU time if XNoOp is done every time.
One XNOOP in 100 loops will make Emacs terminate.
B. Bretthauer, 1994 */
x_noop_count++;
if (x_noop_count >= 100)
{
x_noop_count=0;
if (next_noop_dpyinfo == 0)
next_noop_dpyinfo = x_display_list;
XNoOp (next_noop_dpyinfo->display);
/* Each time we get here, cycle through the displays now open. */
next_noop_dpyinfo = next_noop_dpyinfo->next;
}
}
/* If the focus was just given to an auto-raising frame,
raise it now. FIXME: handle more than one such frame. */
if (dpyinfo->x_pending_autoraise_frame)
{
x_raise_frame (dpyinfo->x_pending_autoraise_frame);
dpyinfo->x_pending_autoraise_frame = NULL;
}
unblock_input ();
return count;
}
\f
/***********************************************************************
Text Cursor
***********************************************************************/
/* Set clipping for output in glyph row ROW. W is the window in which
we operate. GC is the graphics context to set clipping in.
ROW may be a text row or, e.g., a mode line. Text rows must be
clipped to the interior of the window dedicated to text display,
mode lines must be clipped to the whole window. */
static void
x_clip_to_row (struct window *w, struct glyph_row *row,
enum glyph_row_area area, GC gc)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
XRectangle clip_rect;
int window_x, window_y, window_width;
window_box (w, area, &window_x, &window_y, &window_width, 0);
clip_rect.x = window_x;
clip_rect.y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, row->y));
clip_rect.y = max (clip_rect.y, window_y);
clip_rect.width = window_width;
clip_rect.height = row->visible_height;
XSetClipRectangles (FRAME_X_DISPLAY (f), gc, 0, 0, &clip_rect, 1, Unsorted);
}
/* Draw a hollow box cursor on window W in glyph row ROW. */
static void
x_draw_hollow_cursor (struct window *w, struct glyph_row *row)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
Display *dpy = FRAME_X_DISPLAY (f);
int x, y, wd, h;
XGCValues xgcv;
struct glyph *cursor_glyph;
GC gc;
/* Get the glyph the cursor is on. If we can't tell because
the current matrix is invalid or such, give up. */
cursor_glyph = get_phys_cursor_glyph (w);
if (cursor_glyph == NULL)
return;
/* Compute frame-relative coordinates for phys cursor. */
get_phys_cursor_geometry (w, row, cursor_glyph, &x, &y, &h);
wd = w->phys_cursor_width;
/* The foreground of cursor_gc is typically the same as the normal
background color, which can cause the cursor box to be invisible. */
xgcv.foreground = f->output_data.x->cursor_pixel;
if (dpyinfo->scratch_cursor_gc)
XChangeGC (dpy, dpyinfo->scratch_cursor_gc, GCForeground, &xgcv);
else
dpyinfo->scratch_cursor_gc = XCreateGC (dpy, FRAME_X_WINDOW (f),
GCForeground, &xgcv);
gc = dpyinfo->scratch_cursor_gc;
/* When on R2L character, show cursor at the right edge of the
glyph, unless the cursor box is as wide as the glyph or wider
(the latter happens when x-stretch-cursor is non-nil). */
if ((cursor_glyph->resolved_level & 1) != 0
&& cursor_glyph->pixel_width > w->phys_cursor_width)
{
x += cursor_glyph->pixel_width - w->phys_cursor_width;
if (wd > 0)
wd -= 1;
}
/* Set clipping, draw the rectangle, and reset clipping again. */
x_clip_to_row (w, row, TEXT_AREA, gc);
XDrawRectangle (dpy, FRAME_X_WINDOW (f), gc, x, y, wd, h - 1);
XSetClipMask (dpy, gc, None);
}
/* Draw a bar cursor on window W in glyph row ROW.
Implementation note: One would like to draw a bar cursor with an
angle equal to the one given by the font property XA_ITALIC_ANGLE.
Unfortunately, I didn't find a font yet that has this property set.
--gerd. */
static void
x_draw_bar_cursor (struct window *w, struct glyph_row *row, int width, enum text_cursor_kinds kind)
{
struct frame *f = XFRAME (w->frame);
struct glyph *cursor_glyph;
/* If cursor is out of bounds, don't draw garbage. This can happen
in mini-buffer windows when switching between echo area glyphs
and mini-buffer. */
cursor_glyph = get_phys_cursor_glyph (w);
if (cursor_glyph == NULL)
return;
/* If on an image, draw like a normal cursor. That's usually better
visible than drawing a bar, esp. if the image is large so that
the bar might not be in the window. */
if (cursor_glyph->type == IMAGE_GLYPH)
{
struct glyph_row *r;
r = MATRIX_ROW (w->current_matrix, w->phys_cursor.vpos);
draw_phys_cursor_glyph (w, r, DRAW_CURSOR);
}
else
{
Display *dpy = FRAME_X_DISPLAY (f);
Window window = FRAME_X_WINDOW (f);
GC gc = FRAME_DISPLAY_INFO (f)->scratch_cursor_gc;
unsigned long mask = GCForeground | GCBackground | GCGraphicsExposures;
struct face *face = FACE_FROM_ID (f, cursor_glyph->face_id);
XGCValues xgcv;
/* If the glyph's background equals the color we normally draw
the bars cursor in, the bar cursor in its normal color is
invisible. Use the glyph's foreground color instead in this
case, on the assumption that the glyph's colors are chosen so
that the glyph is legible. */
if (face->background == f->output_data.x->cursor_pixel)
xgcv.background = xgcv.foreground = face->foreground;
else
xgcv.background = xgcv.foreground = f->output_data.x->cursor_pixel;
xgcv.graphics_exposures = 0;
if (gc)
XChangeGC (dpy, gc, mask, &xgcv);
else
{
gc = XCreateGC (dpy, window, mask, &xgcv);
FRAME_DISPLAY_INFO (f)->scratch_cursor_gc = gc;
}
x_clip_to_row (w, row, TEXT_AREA, gc);
if (kind == BAR_CURSOR)
{
int x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
if (width < 0)
width = FRAME_CURSOR_WIDTH (f);
width = min (cursor_glyph->pixel_width, width);
w->phys_cursor_width = width;
/* If the character under cursor is R2L, draw the bar cursor
on the right of its glyph, rather than on the left. */
if ((cursor_glyph->resolved_level & 1) != 0)
x += cursor_glyph->pixel_width - width;
XFillRectangle (dpy, window, gc, x,
WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y),
width, row->height);
}
else /* HBAR_CURSOR */
{
int dummy_x, dummy_y, dummy_h;
int x = WINDOW_TEXT_TO_FRAME_PIXEL_X (w, w->phys_cursor.x);
if (width < 0)
width = row->height;
width = min (row->height, width);
get_phys_cursor_geometry (w, row, cursor_glyph, &dummy_x,
&dummy_y, &dummy_h);
if ((cursor_glyph->resolved_level & 1) != 0
&& cursor_glyph->pixel_width > w->phys_cursor_width)
x += cursor_glyph->pixel_width - w->phys_cursor_width;
XFillRectangle (dpy, window, gc, x,
WINDOW_TO_FRAME_PIXEL_Y (w, w->phys_cursor.y +
row->height - width),
w->phys_cursor_width, width);
}
XSetClipMask (dpy, gc, None);
}
}
/* RIF: Define cursor CURSOR on frame F. */
static void
x_define_frame_cursor (struct frame *f, Cursor cursor)
{
if (!f->pointer_invisible
&& f->output_data.x->current_cursor != cursor)
XDefineCursor (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), cursor);
f->output_data.x->current_cursor = cursor;
}
/* RIF: Clear area on frame F. */
static void
x_clear_frame_area (struct frame *f, int x, int y, int width, int height)
{
x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), x, y, width, height);
#ifdef USE_GTK
/* Must queue a redraw, because scroll bars might have been cleared. */
if (FRAME_GTK_WIDGET (f))
gtk_widget_queue_draw (FRAME_GTK_WIDGET (f));
#endif
}
/* RIF: Draw cursor on window W. */
static void
x_draw_window_cursor (struct window *w, struct glyph_row *glyph_row, int x,
int y, enum text_cursor_kinds cursor_type,
int cursor_width, bool on_p, bool active_p)
{
struct frame *f = XFRAME (WINDOW_FRAME (w));
if (on_p)
{
w->phys_cursor_type = cursor_type;
w->phys_cursor_on_p = 1;
if (glyph_row->exact_window_width_line_p
&& (glyph_row->reversed_p
? (w->phys_cursor.hpos < 0)
: (w->phys_cursor.hpos >= glyph_row->used[TEXT_AREA])))
{
glyph_row->cursor_in_fringe_p = 1;
draw_fringe_bitmap (w, glyph_row, glyph_row->reversed_p);
}
else
{
switch (cursor_type)
{
case HOLLOW_BOX_CURSOR:
x_draw_hollow_cursor (w, glyph_row);
break;
case FILLED_BOX_CURSOR:
draw_phys_cursor_glyph (w, glyph_row, DRAW_CURSOR);
break;
case BAR_CURSOR:
x_draw_bar_cursor (w, glyph_row, cursor_width, BAR_CURSOR);
break;
case HBAR_CURSOR:
x_draw_bar_cursor (w, glyph_row, cursor_width, HBAR_CURSOR);
break;
case NO_CURSOR:
w->phys_cursor_width = 0;
break;
default:
emacs_abort ();
}
}
#ifdef HAVE_X_I18N
if (w == XWINDOW (f->selected_window))
if (FRAME_XIC (f) && (FRAME_XIC_STYLE (f) & XIMPreeditPosition))
xic_set_preeditarea (w, x, y);
#endif
}
XFlush (FRAME_X_DISPLAY (f));
}
\f
/* Icons. */
/* Make the x-window of frame F use the gnu icon bitmap. */
int
x_bitmap_icon (struct frame *f, Lisp_Object file)
{
ptrdiff_t bitmap_id;
if (FRAME_X_WINDOW (f) == 0)
return 1;
/* Free up our existing icon bitmap and mask if any. */
if (f->output_data.x->icon_bitmap > 0)
x_destroy_bitmap (f, f->output_data.x->icon_bitmap);
f->output_data.x->icon_bitmap = 0;
if (STRINGP (file))
{
#ifdef USE_GTK
/* Use gtk_window_set_icon_from_file () if available,
It's not restricted to bitmaps */
if (xg_set_icon (f, file))
return 0;
#endif /* USE_GTK */
bitmap_id = x_create_bitmap_from_file (f, file);
x_create_bitmap_mask (f, bitmap_id);
}
else
{
/* Create the GNU bitmap and mask if necessary. */
if (FRAME_DISPLAY_INFO (f)->icon_bitmap_id < 0)
{
ptrdiff_t rc = -1;
#ifdef USE_GTK
if (xg_set_icon (f, xg_default_icon_file)
|| xg_set_icon_from_xpm_data (f, gnu_xpm_bits))
return 0;
#elif defined (HAVE_XPM) && defined (HAVE_X_WINDOWS)
rc = x_create_bitmap_from_xpm_data (f, gnu_xpm_bits);
if (rc != -1)
FRAME_DISPLAY_INFO (f)->icon_bitmap_id = rc;
#endif
/* If all else fails, use the (black and white) xbm image. */
if (rc == -1)
{
rc = x_create_bitmap_from_data (f, (char *) gnu_xbm_bits,
gnu_xbm_width, gnu_xbm_height);
if (rc == -1)
return 1;
FRAME_DISPLAY_INFO (f)->icon_bitmap_id = rc;
x_create_bitmap_mask (f, FRAME_DISPLAY_INFO (f)->icon_bitmap_id);
}
}
/* The first time we create the GNU bitmap and mask,
this increments the ref-count one extra time.
As a result, the GNU bitmap and mask are never freed.
That way, we don't have to worry about allocating it again. */
x_reference_bitmap (f, FRAME_DISPLAY_INFO (f)->icon_bitmap_id);
bitmap_id = FRAME_DISPLAY_INFO (f)->icon_bitmap_id;
}
x_wm_set_icon_pixmap (f, bitmap_id);
f->output_data.x->icon_bitmap = bitmap_id;
return 0;
}
/* Make the x-window of frame F use a rectangle with text.
Use ICON_NAME as the text. */
int
x_text_icon (struct frame *f, const char *icon_name)
{
if (FRAME_X_WINDOW (f) == 0)
return 1;
{
XTextProperty text;
text.value = (unsigned char *) icon_name;
text.encoding = XA_STRING;
text.format = 8;
text.nitems = strlen (icon_name);
XSetWMIconName (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f), &text);
}
if (f->output_data.x->icon_bitmap > 0)
x_destroy_bitmap (f, f->output_data.x->icon_bitmap);
f->output_data.x->icon_bitmap = 0;
x_wm_set_icon_pixmap (f, 0);
return 0;
}
\f
#define X_ERROR_MESSAGE_SIZE 200
/* If non-nil, this should be a string.
It means catch X errors and store the error message in this string.
The reason we use a stack is that x_catch_error/x_uncatch_error can
be called from a signal handler.
*/
struct x_error_message_stack {
char string[X_ERROR_MESSAGE_SIZE];
Display *dpy;
struct x_error_message_stack *prev;
};
static struct x_error_message_stack *x_error_message;
/* An X error handler which stores the error message in
*x_error_message. This is called from x_error_handler if
x_catch_errors is in effect. */
static void
x_error_catcher (Display *display, XErrorEvent *event)
{
XGetErrorText (display, event->error_code,
x_error_message->string,
X_ERROR_MESSAGE_SIZE);
}
/* Begin trapping X errors for display DPY. Actually we trap X errors
for all displays, but DPY should be the display you are actually
operating on.
After calling this function, X protocol errors no longer cause
Emacs to exit; instead, they are recorded in the string
stored in *x_error_message.
Calling x_check_errors signals an Emacs error if an X error has
occurred since the last call to x_catch_errors or x_check_errors.
Calling x_uncatch_errors resumes the normal error handling. */
void
x_catch_errors (Display *dpy)
{
struct x_error_message_stack *data = xmalloc (sizeof *data);
/* Make sure any errors from previous requests have been dealt with. */
XSync (dpy, False);
data->dpy = dpy;
data->string[0] = 0;
data->prev = x_error_message;
x_error_message = data;
}
/* Undo the last x_catch_errors call.
DPY should be the display that was passed to x_catch_errors. */
void
x_uncatch_errors (void)
{
struct x_error_message_stack *tmp;
block_input ();
/* The display may have been closed before this function is called.
Check if it is still open before calling XSync. */
if (x_display_info_for_display (x_error_message->dpy) != 0)
XSync (x_error_message->dpy, False);
tmp = x_error_message;
x_error_message = x_error_message->prev;
xfree (tmp);
unblock_input ();
}
/* If any X protocol errors have arrived since the last call to
x_catch_errors or x_check_errors, signal an Emacs error using
sprintf (a buffer, FORMAT, the x error message text) as the text. */
void
x_check_errors (Display *dpy, const char *format)
{
/* Make sure to catch any errors incurred so far. */
XSync (dpy, False);
if (x_error_message->string[0])
{
char string[X_ERROR_MESSAGE_SIZE];
memcpy (string, x_error_message->string, X_ERROR_MESSAGE_SIZE);
x_uncatch_errors ();
error (format, string);
}
}
/* Nonzero if we had any X protocol errors
since we did x_catch_errors on DPY. */
bool
x_had_errors_p (Display *dpy)
{
/* Make sure to catch any errors incurred so far. */
XSync (dpy, False);
return x_error_message->string[0] != 0;
}
/* Forget about any errors we have had, since we did x_catch_errors on DPY. */
void
x_clear_errors (Display *dpy)
{
x_error_message->string[0] = 0;
}
#if 0 /* See comment in unwind_to_catch why calling this is a bad
* idea. --lorentey */
/* Close off all unclosed x_catch_errors calls. */
void
x_fully_uncatch_errors (void)
{
while (x_error_message)
x_uncatch_errors ();
}
#endif
#if 0
static unsigned int x_wire_count;
x_trace_wire (void)
{
fprintf (stderr, "Lib call: %d\n", ++x_wire_count);
}
#endif /* ! 0 */
\f
/************************************************************************
Handling X errors
************************************************************************/
/* Error message passed to x_connection_closed. */
static char *error_msg;
/* Handle the loss of connection to display DPY. ERROR_MESSAGE is
the text of an error message that lead to the connection loss. */
static void
x_connection_closed (Display *dpy, const char *error_message)
{
struct x_display_info *dpyinfo = x_display_info_for_display (dpy);
Lisp_Object frame, tail;
ptrdiff_t idx = SPECPDL_INDEX ();
error_msg = alloca (strlen (error_message) + 1);
strcpy (error_msg, error_message);
/* Inhibit redisplay while frames are being deleted. */
specbind (Qinhibit_redisplay, Qt);
if (dpyinfo)
{
/* Protect display from being closed when we delete the last
frame on it. */
dpyinfo->reference_count++;
dpyinfo->terminal->reference_count++;
}
/* First delete frames whose mini-buffers are on frames
that are on the dead display. */
FOR_EACH_FRAME (tail, frame)
{
Lisp_Object minibuf_frame;
minibuf_frame
= WINDOW_FRAME (XWINDOW (FRAME_MINIBUF_WINDOW (XFRAME (frame))));
if (FRAME_X_P (XFRAME (frame))
&& FRAME_X_P (XFRAME (minibuf_frame))
&& ! EQ (frame, minibuf_frame)
&& FRAME_DISPLAY_INFO (XFRAME (minibuf_frame)) == dpyinfo)
delete_frame (frame, Qnoelisp);
}
/* Now delete all remaining frames on the dead display.
We are now sure none of these is used as the mini-buffer
for another frame that we need to delete. */
FOR_EACH_FRAME (tail, frame)
if (FRAME_X_P (XFRAME (frame))
&& FRAME_DISPLAY_INFO (XFRAME (frame)) == dpyinfo)
{
/* Set this to t so that delete_frame won't get confused
trying to find a replacement. */
kset_default_minibuffer_frame (FRAME_KBOARD (XFRAME (frame)), Qt);
delete_frame (frame, Qnoelisp);
}
/* If DPYINFO is null, this means we didn't open the display in the
first place, so don't try to close it. */
if (dpyinfo)
{
/* We can not call XtCloseDisplay here because it calls XSync.
XSync inside the error handler apparently hangs Emacs. On
current Xt versions, this isn't needed either. */
#ifdef USE_GTK
/* A long-standing GTK bug prevents proper disconnect handling
(https://bugzilla.gnome.org/show_bug.cgi?id=85715). Once,
the resulting Glib error message loop filled a user's disk.
To avoid this, kill Emacs unconditionally on disconnect. */
shut_down_emacs (0, Qnil);
fprintf (stderr, "%s\n\
When compiled with GTK, Emacs cannot recover from X disconnects.\n\
This is a GTK bug: https://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
For details, see etc/PROBLEMS.\n",
error_msg);
emacs_abort ();
#endif /* USE_GTK */
/* Indicate that this display is dead. */
dpyinfo->display = 0;
dpyinfo->reference_count--;
dpyinfo->terminal->reference_count--;
if (dpyinfo->reference_count != 0)
/* We have just closed all frames on this display. */
emacs_abort ();
{
Lisp_Object tmp;
XSETTERMINAL (tmp, dpyinfo->terminal);
Fdelete_terminal (tmp, Qnoelisp);
}
}
if (terminal_list == 0)
{
fprintf (stderr, "%s\n", error_msg);
Fkill_emacs (make_number (70));
/* NOTREACHED */
}
totally_unblock_input ();
unbind_to (idx, Qnil);
clear_waiting_for_input ();
/* Tell GCC not to suggest attribute 'noreturn' for this function. */
IF_LINT (if (! terminal_list) return; )
/* Here, we absolutely have to use a non-local exit (e.g. signal, throw,
longjmp), because returning from this function would get us back into
Xlib's code which will directly call `exit'. */
error ("%s", error_msg);
}
/* We specifically use it before defining it, so that gcc doesn't inline it,
otherwise gdb doesn't know how to properly put a breakpoint on it. */
static void x_error_quitter (Display *, XErrorEvent *);
/* This is the first-level handler for X protocol errors.
It calls x_error_quitter or x_error_catcher. */
static int
x_error_handler (Display *display, XErrorEvent *event)
{
#if defined USE_GTK && defined HAVE_GTK3
if ((event->error_code == BadMatch || event->error_code == BadWindow)
&& event->request_code == X_SetInputFocus)
{
return 0;
}
#endif
if (x_error_message)
x_error_catcher (display, event);
else
x_error_quitter (display, event);
return 0;
}
/* This is the usual handler for X protocol errors.
It kills all frames on the display that we got the error for.
If that was the only one, it prints an error message and kills Emacs. */
/* .gdbinit puts a breakpoint here, so make sure it is not inlined. */
/* On older GCC versions, just putting x_error_quitter
after x_error_handler prevents inlining into the former. */
static void NO_INLINE
x_error_quitter (Display *display, XErrorEvent *event)
{
char buf[256], buf1[356];
/* Ignore BadName errors. They can happen because of fonts
or colors that are not defined. */
if (event->error_code == BadName)
return;
/* Note that there is no real way portable across R3/R4 to get the
original error handler. */
XGetErrorText (display, event->error_code, buf, sizeof (buf));
sprintf (buf1, "X protocol error: %s on protocol request %d",
buf, event->request_code);
x_connection_closed (display, buf1);
}
/* This is the handler for X IO errors, always.
It kills all frames on the display that we lost touch with.
If that was the only one, it prints an error message and kills Emacs. */
static int
x_io_error_quitter (Display *display)
{
char buf[256];
snprintf (buf, sizeof buf, "Connection lost to X server `%s'",
DisplayString (display));
x_connection_closed (display, buf);
return 0;
}
\f
/* Changing the font of the frame. */
/* Give frame F the font FONT-OBJECT as its default font. The return
value is FONT-OBJECT. FONTSET is an ID of the fontset for the
frame. If it is negative, generate a new fontset from
FONT-OBJECT. */
Lisp_Object
x_new_font (struct frame *f, Lisp_Object font_object, int fontset)
{
struct font *font = XFONT_OBJECT (font_object);
int unit;
if (fontset < 0)
fontset = fontset_from_font (font_object);
FRAME_FONTSET (f) = fontset;
if (FRAME_FONT (f) == font)
/* This font is already set in frame F. There's nothing more to
do. */
return font_object;
FRAME_FONT (f) = font;
FRAME_BASELINE_OFFSET (f) = font->baseline_offset;
FRAME_COLUMN_WIDTH (f) = font->average_width;
FRAME_LINE_HEIGHT (f) = FONT_HEIGHT (font);
FRAME_TOOL_BAR_HEIGHT (f) = FRAME_TOOL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f);
FRAME_MENU_BAR_HEIGHT (f) = FRAME_MENU_BAR_LINES (f) * FRAME_LINE_HEIGHT (f);
compute_fringe_widths (f, 1);
/* Compute character columns occupied by scrollbar.
Don't do things differently for non-toolkit scrollbars
(Bug#17163). */
unit = FRAME_COLUMN_WIDTH (f);
if (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0)
FRAME_CONFIG_SCROLL_BAR_COLS (f)
= (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) + unit - 1) / unit;
else
FRAME_CONFIG_SCROLL_BAR_COLS (f) = (14 + unit - 1) / unit;
if (FRAME_X_WINDOW (f) != 0)
{
/* Don't change the size of a tip frame; there's no point in
doing it because it's done in Fx_show_tip, and it leads to
problems because the tip frame has no widget. */
if (NILP (tip_frame) || XFRAME (tip_frame) != f)
x_set_window_size (f, 0, FRAME_COLS (f) * FRAME_COLUMN_WIDTH (f),
FRAME_LINES (f) * FRAME_LINE_HEIGHT (f), 1);
}
#ifdef HAVE_X_I18N
if (FRAME_XIC (f)
&& (FRAME_XIC_STYLE (f) & (XIMPreeditPosition | XIMStatusArea)))
{
block_input ();
xic_set_xfontset (f, SSDATA (fontset_ascii (fontset)));
unblock_input ();
}
#endif
return font_object;
}
\f
/***********************************************************************
X Input Methods
***********************************************************************/
#ifdef HAVE_X_I18N
#ifdef HAVE_X11R6
/* XIM destroy callback function, which is called whenever the
connection to input method XIM dies. CLIENT_DATA contains a
pointer to the x_display_info structure corresponding to XIM. */
static void
xim_destroy_callback (XIM xim, XPointer client_data, XPointer call_data)
{
struct x_display_info *dpyinfo = (struct x_display_info *) client_data;
Lisp_Object frame, tail;
block_input ();
/* No need to call XDestroyIC.. */
FOR_EACH_FRAME (tail, frame)
{
struct frame *f = XFRAME (frame);
if (FRAME_X_P (f) && FRAME_DISPLAY_INFO (f) == dpyinfo)
{
FRAME_XIC (f) = NULL;
xic_free_xfontset (f);
}
}
/* No need to call XCloseIM. */
dpyinfo->xim = NULL;
XFree (dpyinfo->xim_styles);
unblock_input ();
}
#endif /* HAVE_X11R6 */
#ifdef HAVE_X11R6
/* This isn't prototyped in OSF 5.0 or 5.1a. */
extern char *XSetIMValues (XIM, ...);
#endif
/* Open the connection to the XIM server on display DPYINFO.
RESOURCE_NAME is the resource name Emacs uses. */
static void
xim_open_dpy (struct x_display_info *dpyinfo, char *resource_name)
{
XIM xim;
#ifdef HAVE_XIM
if (use_xim)
{
if (dpyinfo->xim)
XCloseIM (dpyinfo->xim);
xim = XOpenIM (dpyinfo->display, dpyinfo->xrdb, resource_name,
emacs_class);
dpyinfo->xim = xim;
if (xim)
{
#ifdef HAVE_X11R6
XIMCallback destroy;
#endif
/* Get supported styles and XIM values. */
XGetIMValues (xim, XNQueryInputStyle, &dpyinfo->xim_styles, NULL);
#ifdef HAVE_X11R6
destroy.callback = xim_destroy_callback;
destroy.client_data = (XPointer)dpyinfo;
XSetIMValues (xim, XNDestroyCallback, &destroy, NULL);
#endif
}
}
else
#endif /* HAVE_XIM */
dpyinfo->xim = NULL;
}
#ifdef HAVE_X11R6_XIM
/* XIM instantiate callback function, which is called whenever an XIM
server is available. DISPLAY is the display of the XIM.
CLIENT_DATA contains a pointer to an xim_inst_t structure created
when the callback was registered. */
static void
xim_instantiate_callback (Display *display, XPointer client_data, XPointer call_data)
{
struct xim_inst_t *xim_inst = (struct xim_inst_t *) client_data;
struct x_display_info *dpyinfo = xim_inst->dpyinfo;
/* We don't support multiple XIM connections. */
if (dpyinfo->xim)
return;
xim_open_dpy (dpyinfo, xim_inst->resource_name);
/* Create XIC for the existing frames on the same display, as long
as they have no XIC. */
if (dpyinfo->xim && dpyinfo->reference_count > 0)
{
Lisp_Object tail, frame;
block_input ();
FOR_EACH_FRAME (tail, frame)
{
struct frame *f = XFRAME (frame);
if (FRAME_X_P (f)
&& FRAME_DISPLAY_INFO (f) == xim_inst->dpyinfo)
if (FRAME_XIC (f) == NULL)
{
create_frame_xic (f);
if (FRAME_XIC_STYLE (f) & XIMStatusArea)
xic_set_statusarea (f);
if (FRAME_XIC_STYLE (f) & XIMPreeditPosition)
{
struct window *w = XWINDOW (f->selected_window);
xic_set_preeditarea (w, w->cursor.x, w->cursor.y);
}
}
}
unblock_input ();
}
}
#endif /* HAVE_X11R6_XIM */
/* Open a connection to the XIM server on display DPYINFO.
RESOURCE_NAME is the resource name for Emacs. On X11R5, open the
connection only at the first time. On X11R6, open the connection
in the XIM instantiate callback function. */
static void
xim_initialize (struct x_display_info *dpyinfo, char *resource_name)
{
dpyinfo->xim = NULL;
#ifdef HAVE_XIM
if (use_xim)
{
#ifdef HAVE_X11R6_XIM
struct xim_inst_t *xim_inst = xmalloc (sizeof *xim_inst);
Bool ret;
dpyinfo->xim_callback_data = xim_inst;
xim_inst->dpyinfo = dpyinfo;
xim_inst->resource_name = xstrdup (resource_name);
ret = XRegisterIMInstantiateCallback
(dpyinfo->display, dpyinfo->xrdb, xim_inst->resource_name,
emacs_class, xim_instantiate_callback,
/* This is XPointer in XFree86 but (XPointer *)
on Tru64, at least, hence the configure test. */
(XRegisterIMInstantiateCallback_arg6) xim_inst);
eassert (ret == True);
#else /* not HAVE_X11R6_XIM */
xim_open_dpy (dpyinfo, resource_name);
#endif /* not HAVE_X11R6_XIM */
}
#endif /* HAVE_XIM */
}
/* Close the connection to the XIM server on display DPYINFO. */
static void
xim_close_dpy (struct x_display_info *dpyinfo)
{
#ifdef HAVE_XIM
if (use_xim)
{
#ifdef HAVE_X11R6_XIM
struct xim_inst_t *xim_inst = dpyinfo->xim_callback_data;
if (dpyinfo->display)
{
Bool ret = XUnregisterIMInstantiateCallback
(dpyinfo->display, dpyinfo->xrdb, xim_inst->resource_name,
emacs_class, xim_instantiate_callback,
(XRegisterIMInstantiateCallback_arg6) xim_inst);
eassert (ret == True);
}
xfree (xim_inst->resource_name);
xfree (xim_inst);
#endif /* HAVE_X11R6_XIM */
if (dpyinfo->display)
XCloseIM (dpyinfo->xim);
dpyinfo->xim = NULL;
XFree (dpyinfo->xim_styles);
}
#endif /* HAVE_XIM */
}
#endif /* not HAVE_X11R6_XIM */
\f
/* Calculate the absolute position in frame F
from its current recorded position values and gravity. */
static void
x_calc_absolute_position (struct frame *f)
{
int flags = f->size_hint_flags;
/* We have nothing to do if the current position
is already for the top-left corner. */
if (! ((flags & XNegative) || (flags & YNegative)))
return;
/* Treat negative positions as relative to the leftmost bottommost
position that fits on the screen. */
if (flags & XNegative)
f->left_pos = x_display_pixel_width (FRAME_DISPLAY_INFO (f))
- FRAME_PIXEL_WIDTH (f) + f->left_pos;
{
int height = FRAME_PIXEL_HEIGHT (f);
#if defined USE_X_TOOLKIT && defined USE_MOTIF
/* Something is fishy here. When using Motif, starting Emacs with
`-g -0-0', the frame appears too low by a few pixels.
This seems to be so because initially, while Emacs is starting,
the column widget's height and the frame's pixel height are
different. The column widget's height is the right one. In
later invocations, when Emacs is up, the frame's pixel height
is right, though.
It's not obvious where the initial small difference comes from.
2000-12-01, gerd. */
XtVaGetValues (f->output_data.x->column_widget, XtNheight, &height, NULL);
#endif
if (flags & YNegative)
f->top_pos = x_display_pixel_height (FRAME_DISPLAY_INFO (f))
- height + f->top_pos;
}
/* The left_pos and top_pos
are now relative to the top and left screen edges,
so the flags should correspond. */
f->size_hint_flags &= ~ (XNegative | YNegative);
}
/* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
to really change the position, and 0 when calling from
x_make_frame_visible (in that case, XOFF and YOFF are the current
position values). It is -1 when calling from x_set_frame_parameters,
which means, do adjust for borders but don't change the gravity. */
void
x_set_offset (struct frame *f, register int xoff, register int yoff, int change_gravity)
{
int modified_top, modified_left;
if (change_gravity > 0)
{
f->top_pos = yoff;
f->left_pos = xoff;
f->size_hint_flags &= ~ (XNegative | YNegative);
if (xoff < 0)
f->size_hint_flags |= XNegative;
if (yoff < 0)
f->size_hint_flags |= YNegative;
f->win_gravity = NorthWestGravity;
}
x_calc_absolute_position (f);
block_input ();
x_wm_set_size_hint (f, (long) 0, 0);
modified_left = f->left_pos;
modified_top = f->top_pos;
if (change_gravity != 0 && FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_A)
{
/* Some WMs (twm, wmaker at least) has an offset that is smaller
than the WM decorations. So we use the calculated offset instead
of the WM decoration sizes here (x/y_pixels_outer_diff). */
modified_left += FRAME_X_OUTPUT (f)->move_offset_left;
modified_top += FRAME_X_OUTPUT (f)->move_offset_top;
}
XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
modified_left, modified_top);
x_sync_with_move (f, f->left_pos, f->top_pos,
FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_UNKNOWN
? 1 : 0);
/* change_gravity is non-zero when this function is called from Lisp to
programmatically move a frame. In that case, we call
x_check_expected_move to discover if we have a "Type A" or "Type B"
window manager, and, for a "Type A" window manager, adjust the position
of the frame.
We call x_check_expected_move if a programmatic move occurred, and
either the window manager type (A/B) is unknown or it is Type A but we
need to compute the top/left offset adjustment for this frame. */
if (change_gravity != 0 &&
(FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_UNKNOWN
|| (FRAME_DISPLAY_INFO (f)->wm_type == X_WMTYPE_A
&& (FRAME_X_OUTPUT (f)->move_offset_left == 0
&& FRAME_X_OUTPUT (f)->move_offset_top == 0))))
x_check_expected_move (f, modified_left, modified_top);
unblock_input ();
}
/* Return non-zero if _NET_SUPPORTING_WM_CHECK window exists and _NET_SUPPORTED
on the root window for frame F contains ATOMNAME.
This is how a WM check shall be done according to the Window Manager
Specification/Extended Window Manager Hints at
http://freedesktop.org/wiki/Specifications/wm-spec. */
static int
wm_supports (struct frame *f, Atom want_atom)
{
Atom actual_type;
unsigned long actual_size, bytes_remaining;
int i, rc, actual_format;
Window wmcheck_window;
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
Window target_window = dpyinfo->root_window;
long max_len = 65536;
Display *dpy = FRAME_X_DISPLAY (f);
unsigned char *tmp_data = NULL;
Atom target_type = XA_WINDOW;
block_input ();
x_catch_errors (dpy);
rc = XGetWindowProperty (dpy, target_window,
dpyinfo->Xatom_net_supporting_wm_check,
0, max_len, False, target_type,
&actual_type, &actual_format, &actual_size,
&bytes_remaining, &tmp_data);
if (rc != Success || actual_type != XA_WINDOW || x_had_errors_p (dpy))
{
if (tmp_data) XFree (tmp_data);
x_uncatch_errors ();
unblock_input ();
return 0;
}
wmcheck_window = *(Window *) tmp_data;
XFree (tmp_data);
/* Check if window exists. */
XSelectInput (dpy, wmcheck_window, StructureNotifyMask);
x_sync (f);
if (x_had_errors_p (dpy))
{
x_uncatch_errors ();
unblock_input ();
return 0;
}
if (dpyinfo->net_supported_window != wmcheck_window)
{
/* Window changed, reload atoms */
if (dpyinfo->net_supported_atoms != NULL)
XFree (dpyinfo->net_supported_atoms);
dpyinfo->net_supported_atoms = NULL;
dpyinfo->nr_net_supported_atoms = 0;
dpyinfo->net_supported_window = 0;
target_type = XA_ATOM;
tmp_data = NULL;
rc = XGetWindowProperty (dpy, target_window,
dpyinfo->Xatom_net_supported,
0, max_len, False, target_type,
&actual_type, &actual_format, &actual_size,
&bytes_remaining, &tmp_data);
if (rc != Success || actual_type != XA_ATOM || x_had_errors_p (dpy))
{
if (tmp_data) XFree (tmp_data);
x_uncatch_errors ();
unblock_input ();
return 0;
}
dpyinfo->net_supported_atoms = (Atom *)tmp_data;
dpyinfo->nr_net_supported_atoms = actual_size;
dpyinfo->net_supported_window = wmcheck_window;
}
rc = 0;
for (i = 0; rc == 0 && i < dpyinfo->nr_net_supported_atoms; ++i)
rc = dpyinfo->net_supported_atoms[i] == want_atom;
x_uncatch_errors ();
unblock_input ();
return rc;
}
static void
set_wm_state (Lisp_Object frame, int add, Atom atom, Atom value)
{
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (XFRAME (frame));
x_send_client_event (frame, make_number (0), frame,
dpyinfo->Xatom_net_wm_state,
make_number (32),
/* 1 = add, 0 = remove */
Fcons
(make_number (add ? 1 : 0),
Fcons
(make_fixnum_or_float (atom),
(value != 0
? list1 (make_fixnum_or_float (value))
: Qnil))));
}
void
x_set_sticky (struct frame *f, Lisp_Object new_value, Lisp_Object old_value)
{
Lisp_Object frame;
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
XSETFRAME (frame, f);
set_wm_state (frame, NILP (new_value) ? 0 : 1,
dpyinfo->Xatom_net_wm_state_sticky, None);
}
/* Return the current _NET_WM_STATE.
SIZE_STATE is set to one of the FULLSCREEN_* values.
STICKY is set to 1 if the sticky state is set, 0 if not.
Return non-zero if we are not hidden, zero if we are. */
static int
get_current_wm_state (struct frame *f,
Window window,
int *size_state,
int *sticky)
{
Atom actual_type;
unsigned long actual_size, bytes_remaining;
int i, rc, actual_format, is_hidden = 0;
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
long max_len = 65536;
Display *dpy = FRAME_X_DISPLAY (f);
unsigned char *tmp_data = NULL;
Atom target_type = XA_ATOM;
*sticky = 0;
*size_state = FULLSCREEN_NONE;
block_input ();
x_catch_errors (dpy);
rc = XGetWindowProperty (dpy, window, dpyinfo->Xatom_net_wm_state,
0, max_len, False, target_type,
&actual_type, &actual_format, &actual_size,
&bytes_remaining, &tmp_data);
if (rc != Success || actual_type != target_type || x_had_errors_p (dpy))
{
if (tmp_data) XFree (tmp_data);
x_uncatch_errors ();
unblock_input ();
return !FRAME_ICONIFIED_P (f);
}
x_uncatch_errors ();
for (i = 0; i < actual_size; ++i)
{
Atom a = ((Atom*)tmp_data)[i];
if (a == dpyinfo->Xatom_net_wm_state_hidden)
{
is_hidden = 1;
f->output_data.x->net_wm_state_hidden_seen = 1;
}
else if (a == dpyinfo->Xatom_net_wm_state_maximized_horz)
{
if (*size_state == FULLSCREEN_HEIGHT)
*size_state = FULLSCREEN_MAXIMIZED;
else
*size_state = FULLSCREEN_WIDTH;
}
else if (a == dpyinfo->Xatom_net_wm_state_maximized_vert)
{
if (*size_state == FULLSCREEN_WIDTH)
*size_state = FULLSCREEN_MAXIMIZED;
else
*size_state = FULLSCREEN_HEIGHT;
}
else if (a == dpyinfo->Xatom_net_wm_state_fullscreen)
*size_state = FULLSCREEN_BOTH;
else if (a == dpyinfo->Xatom_net_wm_state_sticky)
*sticky = 1;
}
if (tmp_data) XFree (tmp_data);
unblock_input ();
return ! is_hidden;
}
/* Do fullscreen as specified in extended window manager hints */
static int
do_ewmh_fullscreen (struct frame *f)
{
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
int have_net_atom = wm_supports (f, dpyinfo->Xatom_net_wm_state);
int cur, dummy;
(void)get_current_wm_state (f, FRAME_OUTER_WINDOW (f), &cur, &dummy);
/* Some window managers don't say they support _NET_WM_STATE, but they do say
they support _NET_WM_STATE_FULLSCREEN. Try that also. */
if (!have_net_atom)
have_net_atom = wm_supports (f, dpyinfo->Xatom_net_wm_state_fullscreen);
if (have_net_atom && cur != f->want_fullscreen)
{
Lisp_Object frame;
XSETFRAME (frame, f);
/* Keep number of calls to set_wm_state as low as possible.
Some window managers, or possible Gtk+, hangs when too many
are sent at once. */
switch (f->want_fullscreen)
{
case FULLSCREEN_BOTH:
if (cur != FULLSCREEN_BOTH)
set_wm_state (frame, 1, dpyinfo->Xatom_net_wm_state_fullscreen,
None);
break;
case FULLSCREEN_WIDTH:
if (cur == FULLSCREEN_BOTH || cur == FULLSCREEN_HEIGHT
|| cur == FULLSCREEN_MAXIMIZED)
set_wm_state (frame, 0, dpyinfo->Xatom_net_wm_state_fullscreen,
dpyinfo->Xatom_net_wm_state_maximized_vert);
if (cur != FULLSCREEN_MAXIMIZED)
set_wm_state (frame, 1, dpyinfo->Xatom_net_wm_state_maximized_horz, None);
break;
case FULLSCREEN_HEIGHT:
if (cur == FULLSCREEN_BOTH || cur == FULLSCREEN_WIDTH
|| cur == FULLSCREEN_MAXIMIZED)
set_wm_state (frame, 0, dpyinfo->Xatom_net_wm_state_fullscreen,
dpyinfo->Xatom_net_wm_state_maximized_horz);
if (cur != FULLSCREEN_MAXIMIZED)
set_wm_state (frame, 1, dpyinfo->Xatom_net_wm_state_maximized_vert, None);
break;
case FULLSCREEN_MAXIMIZED:
if (cur == FULLSCREEN_BOTH)
set_wm_state (frame, 0, dpyinfo->Xatom_net_wm_state_fullscreen, None);
set_wm_state (frame, 1, dpyinfo->Xatom_net_wm_state_maximized_horz,
dpyinfo->Xatom_net_wm_state_maximized_vert);
break;
case FULLSCREEN_NONE:
if (cur == FULLSCREEN_BOTH)
set_wm_state (frame, 0, dpyinfo->Xatom_net_wm_state_fullscreen, None);
else
set_wm_state (frame, 0, dpyinfo->Xatom_net_wm_state_maximized_horz,
dpyinfo->Xatom_net_wm_state_maximized_vert);
}
f->want_fullscreen = FULLSCREEN_NONE;
}
return have_net_atom;
}
static void
XTfullscreen_hook (struct frame *f)
{
if (FRAME_VISIBLE_P (f))
{
block_input ();
x_check_fullscreen (f);
x_sync (f);
unblock_input ();
}
}
static int
x_handle_net_wm_state (struct frame *f, const XPropertyEvent *event)
{
int value = FULLSCREEN_NONE;
Lisp_Object lval;
int sticky = 0;
int not_hidden = get_current_wm_state (f, event->window, &value, &sticky);
lval = Qnil;
switch (value)
{
case FULLSCREEN_WIDTH:
lval = Qfullwidth;
break;
case FULLSCREEN_HEIGHT:
lval = Qfullheight;
break;
case FULLSCREEN_BOTH:
lval = Qfullboth;
break;
case FULLSCREEN_MAXIMIZED:
lval = Qmaximized;
break;
}
store_frame_param (f, Qfullscreen, lval);
store_frame_param (f, Qsticky, sticky ? Qt : Qnil);
return not_hidden;
}
/* Check if we need to resize the frame due to a fullscreen request.
If so needed, resize the frame. */
static void
x_check_fullscreen (struct frame *f)
{
if (do_ewmh_fullscreen (f))
return;
if (f->output_data.x->parent_desc != FRAME_DISPLAY_INFO (f)->root_window)
return; /* Only fullscreen without WM or with EWM hints (above). */
/* Setting fullscreen to nil doesn't do anything. We could save the
last non-fullscreen size and restore it, but it seems like a
lot of work for this unusual case (no window manager running). */
if (f->want_fullscreen != FULLSCREEN_NONE)
{
int width = FRAME_PIXEL_WIDTH (f), height = FRAME_PIXEL_HEIGHT (f);
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
switch (f->want_fullscreen)
{
/* No difference between these two when there is no WM */
case FULLSCREEN_BOTH:
case FULLSCREEN_MAXIMIZED:
width = x_display_pixel_width (dpyinfo);
height = x_display_pixel_height (dpyinfo);
break;
case FULLSCREEN_WIDTH:
width = x_display_pixel_width (dpyinfo);
break;
case FULLSCREEN_HEIGHT:
height = x_display_pixel_height (dpyinfo);
}
XResizeWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
width, height);
}
}
/* This function is called by x_set_offset to determine whether the window
manager interfered with the positioning of the frame. Type A window
managers position the surrounding window manager decorations a small
amount above and left of the user-supplied position. Type B window
managers position the surrounding window manager decorations at the
user-specified position. If we detect a Type A window manager, we
compensate by moving the window right and down by the proper amount. */
static void
x_check_expected_move (struct frame *f, int expected_left, int expected_top)
{
int current_left = 0, current_top = 0;
/* x_real_positions returns the left and top offsets of the outermost
window manager window around the frame. */
x_real_positions (f, ¤t_left, ¤t_top);
if (current_left != expected_left || current_top != expected_top)
{
/* It's a "Type A" window manager. */
int adjusted_left;
int adjusted_top;
FRAME_DISPLAY_INFO (f)->wm_type = X_WMTYPE_A;
FRAME_X_OUTPUT (f)->move_offset_left = expected_left - current_left;
FRAME_X_OUTPUT (f)->move_offset_top = expected_top - current_top;
/* Now fix the mispositioned frame's location. */
adjusted_left = expected_left + FRAME_X_OUTPUT (f)->move_offset_left;
adjusted_top = expected_top + FRAME_X_OUTPUT (f)->move_offset_top;
XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
adjusted_left, adjusted_top);
x_sync_with_move (f, expected_left, expected_top, 0);
}
else
/* It's a "Type B" window manager. We don't have to adjust the
frame's position. */
FRAME_DISPLAY_INFO (f)->wm_type = X_WMTYPE_B;
}
/* Wait for XGetGeometry to return up-to-date position information for a
recently-moved frame. Call this immediately after calling XMoveWindow.
If FUZZY is non-zero, then LEFT and TOP are just estimates of where the
frame has been moved to, so we use a fuzzy position comparison instead
of an exact comparison. */
static void
x_sync_with_move (struct frame *f, int left, int top, int fuzzy)
{
int count = 0;
while (count++ < 50)
{
int current_left = 0, current_top = 0;
/* In theory, this call to XSync only needs to happen once, but in
practice, it doesn't seem to work, hence the need for the surrounding
loop. */
XSync (FRAME_X_DISPLAY (f), False);
x_real_positions (f, ¤t_left, ¤t_top);
if (fuzzy)
{
/* The left fuzz-factor is 10 pixels. The top fuzz-factor is 40
pixels. */
if (eabs (current_left - left) <= 10
&& eabs (current_top - top) <= 40)
return;
}
else if (current_left == left && current_top == top)
return;
}
/* As a last resort, just wait 0.5 seconds and hope that XGetGeometry
will then return up-to-date position info. */
wait_reading_process_output (0, 500000, 0, 0, Qnil, NULL, 0);
}
/* Wait for an event on frame F matching EVENTTYPE. */
void
x_wait_for_event (struct frame *f, int eventtype)
{
int level = interrupt_input_blocked;
fd_set fds;
struct timespec tmo, tmo_at, time_now;
int fd = ConnectionNumber (FRAME_X_DISPLAY (f));
f->wait_event_type = eventtype;
/* Set timeout to 0.1 second. Hopefully not noticeable.
Maybe it should be configurable. */
tmo = make_timespec (0, 100 * 1000 * 1000);
tmo_at = timespec_add (current_timespec (), tmo);
while (f->wait_event_type)
{
pending_signals = 1;
totally_unblock_input ();
/* XTread_socket is called after unblock. */
block_input ();
interrupt_input_blocked = level;
FD_ZERO (&fds);
FD_SET (fd, &fds);
time_now = current_timespec ();
if (timespec_cmp (tmo_at, time_now) < 0)
break;
tmo = timespec_sub (tmo_at, time_now);
if (pselect (fd + 1, &fds, NULL, NULL, &tmo, NULL) == 0)
break; /* Timeout */
}
f->wait_event_type = 0;
}
/* Change the size of frame F's X window to COLS/ROWS in the case F
doesn't have a widget. If CHANGE_GRAVITY is 1, we change to
top-left-corner window gravity for this size change and subsequent
size changes. Otherwise we leave the window gravity unchanged. */
static void
x_set_window_size_1 (struct frame *f, int change_gravity, int width, int height, bool pixelwise)
{
int pixelwidth, pixelheight;
check_frame_size (f, &width, &height, pixelwise);
compute_fringe_widths (f, 0);
pixelwidth = ((pixelwise
? FRAME_TEXT_TO_PIXEL_WIDTH (f, width)
: FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, width))
+ FRAME_TOOLBAR_WIDTH (f));
pixelheight = ((pixelwise
? FRAME_TEXT_TO_PIXEL_HEIGHT (f, height)
: FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, height))
+ FRAME_MENUBAR_HEIGHT (f)
+ FRAME_TOOLBAR_HEIGHT (f));
if (change_gravity) f->win_gravity = NorthWestGravity;
x_wm_set_size_hint (f, (long) 0, 0);
XResizeWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
pixelwidth, pixelheight);
/* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
receive in the ConfigureNotify event; if we get what we asked
for, then the event won't cause the screen to become garbaged, so
we have to make sure to do it here. */
SET_FRAME_GARBAGED (f);
/* Now, strictly speaking, we can't be sure that this is accurate,
but the window manager will get around to dealing with the size
change request eventually, and we'll hear how it went when the
ConfigureNotify event gets here.
We could just not bother storing any of this information here,
and let the ConfigureNotify event set everything up, but that
might be kind of confusing to the Lisp code, since size changes
wouldn't be reported in the frame parameters until some random
point in the future when the ConfigureNotify event arrives.
We pass 1 for DELAY since we can't run Lisp code inside of
a BLOCK_INPUT. */
/* But the ConfigureNotify may in fact never arrive, and then this is
not right if the frame is visible. Instead wait (with timeout)
for the ConfigureNotify. */
if (FRAME_VISIBLE_P (f))
x_wait_for_event (f, ConfigureNotify);
else
{
change_frame_size (f, width, height, 0, 1, 0, 1);
x_sync (f);
}
}
/* Call this to change the size of frame F's x-window.
If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity
for this size change and subsequent size changes.
Otherwise we leave the window gravity unchanged. */
void
x_set_window_size (struct frame *f, int change_gravity, int width, int height, bool pixelwise)
{
block_input ();
check_frame_size (f, &width, &height, pixelwise);
if (NILP (tip_frame) || XFRAME (tip_frame) != f)
{
int text_width, text_height;
/* When the frame is maximized/fullscreen or running under for
example Xmonad, x_set_window_size_1 will be a no-op.
In that case, the right thing to do is extend rows/width to
the current frame size. We do that first if x_set_window_size_1
turns out to not be a no-op (there is no way to know).
The size will be adjusted again if the frame gets a
ConfigureNotify event as a result of x_set_window_size. */
int pixelh = FRAME_PIXEL_HEIGHT (f);
#ifdef USE_X_TOOLKIT
/* The menu bar is not part of text lines. The tool bar
is however. */
pixelh -= FRAME_MENUBAR_HEIGHT (f);
#endif
text_width = FRAME_PIXEL_TO_TEXT_WIDTH (f, FRAME_PIXEL_WIDTH (f));
text_height = FRAME_PIXEL_TO_TEXT_HEIGHT (f, pixelh);
change_frame_size (f, text_width, text_height, 0, 1, 0, 1);
}
#ifdef USE_GTK
if (FRAME_GTK_WIDGET (f))
if (! pixelwise)
xg_frame_set_char_size (f, width * FRAME_COLUMN_WIDTH (f),
height * FRAME_LINE_HEIGHT (f));
else
xg_frame_set_char_size (f, width, height);
else
x_set_window_size_1 (f, change_gravity, width, height, pixelwise);
#else /* not USE_GTK */
x_set_window_size_1 (f, change_gravity, width, height, pixelwise);
#if !defined USE_X_TOOLKIT
x_clear_under_internal_border (f);
#endif
#endif /* not USE_GTK */
/* If cursor was outside the new size, mark it as off. */
mark_window_cursors_off (XWINDOW (f->root_window));
/* Clear out any recollection of where the mouse highlighting was,
since it might be in a place that's outside the new frame size.
Actually checking whether it is outside is a pain in the neck,
so don't try--just let the highlighting be done afresh with new size. */
cancel_mouse_face (f);
unblock_input ();
}
\f
/* Mouse warping. */
void
x_set_mouse_position (struct frame *f, int x, int y)
{
int pix_x, pix_y;
pix_x = FRAME_COL_TO_PIXEL_X (f, x) + FRAME_COLUMN_WIDTH (f) / 2;
pix_y = FRAME_LINE_TO_PIXEL_Y (f, y) + FRAME_LINE_HEIGHT (f) / 2;
if (pix_x < 0) pix_x = 0;
if (pix_x > FRAME_PIXEL_WIDTH (f)) pix_x = FRAME_PIXEL_WIDTH (f);
if (pix_y < 0) pix_y = 0;
if (pix_y > FRAME_PIXEL_HEIGHT (f)) pix_y = FRAME_PIXEL_HEIGHT (f);
block_input ();
XWarpPointer (FRAME_X_DISPLAY (f), None, FRAME_X_WINDOW (f),
0, 0, 0, 0, pix_x, pix_y);
unblock_input ();
}
/* Move the mouse to position pixel PIX_X, PIX_Y relative to frame F. */
void
x_set_mouse_pixel_position (struct frame *f, int pix_x, int pix_y)
{
block_input ();
XWarpPointer (FRAME_X_DISPLAY (f), None, FRAME_X_WINDOW (f),
0, 0, 0, 0, pix_x, pix_y);
unblock_input ();
}
\f
/* Raise frame F. */
void
x_raise_frame (struct frame *f)
{
block_input ();
if (FRAME_VISIBLE_P (f))
XRaiseWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f));
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
}
/* Lower frame F. */
static void
x_lower_frame (struct frame *f)
{
if (FRAME_VISIBLE_P (f))
{
block_input ();
XLowerWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f));
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
}
}
/* Request focus with XEmbed */
void
xembed_request_focus (struct frame *f)
{
/* See XEmbed Protocol Specification at
http://freedesktop.org/wiki/Specifications/xembed-spec */
if (FRAME_VISIBLE_P (f))
xembed_send_message (f, CurrentTime,
XEMBED_REQUEST_FOCUS, 0, 0, 0);
}
/* Activate frame with Extended Window Manager Hints */
void
x_ewmh_activate_frame (struct frame *f)
{
/* See Window Manager Specification/Extended Window Manager Hints at
http://freedesktop.org/wiki/Specifications/wm-spec */
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
if (FRAME_VISIBLE_P (f) && wm_supports (f, dpyinfo->Xatom_net_active_window))
{
Lisp_Object frame;
XSETFRAME (frame, f);
x_send_client_event (frame, make_number (0), frame,
dpyinfo->Xatom_net_active_window,
make_number (32),
list2i (1, dpyinfo->last_user_time));
}
}
static void
XTframe_raise_lower (struct frame *f, int raise_flag)
{
if (raise_flag)
x_raise_frame (f);
else
x_lower_frame (f);
}
\f
/* XEmbed implementation. */
#if defined USE_X_TOOLKIT || ! defined USE_GTK
/* XEmbed implementation. */
#define XEMBED_VERSION 0
static void
xembed_set_info (struct frame *f, enum xembed_info flags)
{
unsigned long data[2];
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
data[0] = XEMBED_VERSION;
data[1] = flags;
XChangeProperty (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
dpyinfo->Xatom_XEMBED_INFO, dpyinfo->Xatom_XEMBED_INFO,
32, PropModeReplace, (unsigned char *) data, 2);
}
#endif /* defined USE_X_TOOLKIT || ! defined USE_GTK */
static void
xembed_send_message (struct frame *f, Time t, enum xembed_message msg,
long int detail, long int data1, long int data2)
{
XEvent event;
event.xclient.type = ClientMessage;
event.xclient.window = FRAME_X_OUTPUT (f)->parent_desc;
event.xclient.message_type = FRAME_DISPLAY_INFO (f)->Xatom_XEMBED;
event.xclient.format = 32;
event.xclient.data.l[0] = t;
event.xclient.data.l[1] = msg;
event.xclient.data.l[2] = detail;
event.xclient.data.l[3] = data1;
event.xclient.data.l[4] = data2;
XSendEvent (FRAME_X_DISPLAY (f), FRAME_X_OUTPUT (f)->parent_desc,
False, NoEventMask, &event);
XSync (FRAME_X_DISPLAY (f), False);
}
\f
/* Change of visibility. */
/* This tries to wait until the frame is really visible.
However, if the window manager asks the user where to position
the frame, this will return before the user finishes doing that.
The frame will not actually be visible at that time,
but it will become visible later when the window manager
finishes with it. */
void
x_make_frame_visible (struct frame *f)
{
int original_top, original_left;
int tries = 0;
block_input ();
x_set_bitmap_icon (f);
if (! FRAME_VISIBLE_P (f))
{
/* We test FRAME_GARBAGED_P here to make sure we don't
call x_set_offset a second time
if we get to x_make_frame_visible a second time
before the window gets really visible. */
if (! FRAME_ICONIFIED_P (f)
&& ! FRAME_X_EMBEDDED_P (f)
&& ! f->output_data.x->asked_for_visible)
x_set_offset (f, f->left_pos, f->top_pos, 0);
f->output_data.x->asked_for_visible = 1;
if (! EQ (Vx_no_window_manager, Qt))
x_wm_set_window_state (f, NormalState);
#ifdef USE_X_TOOLKIT
if (FRAME_X_EMBEDDED_P (f))
xembed_set_info (f, XEMBED_MAPPED);
else
{
/* This was XtPopup, but that did nothing for an iconified frame. */
XtMapWidget (f->output_data.x->widget);
}
#else /* not USE_X_TOOLKIT */
#ifdef USE_GTK
gtk_widget_show_all (FRAME_GTK_OUTER_WIDGET (f));
gtk_window_deiconify (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
#else
if (FRAME_X_EMBEDDED_P (f))
xembed_set_info (f, XEMBED_MAPPED);
else
XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
#endif /* not USE_GTK */
#endif /* not USE_X_TOOLKIT */
}
XFlush (FRAME_X_DISPLAY (f));
/* Synchronize to ensure Emacs knows the frame is visible
before we do anything else. We do this loop with input not blocked
so that incoming events are handled. */
{
Lisp_Object frame;
/* This must be before UNBLOCK_INPUT
since events that arrive in response to the actions above
will set it when they are handled. */
int previously_visible = f->output_data.x->has_been_visible;
original_left = f->left_pos;
original_top = f->top_pos;
/* This must come after we set COUNT. */
unblock_input ();
/* We unblock here so that arriving X events are processed. */
/* Now move the window back to where it was "supposed to be".
But don't do it if the gravity is negative.
When the gravity is negative, this uses a position
that is 3 pixels too low. Perhaps that's really the border width.
Don't do this if the window has never been visible before,
because the window manager may choose the position
and we don't want to override it. */
if (! FRAME_VISIBLE_P (f)
&& ! FRAME_ICONIFIED_P (f)
&& ! FRAME_X_EMBEDDED_P (f)
&& f->win_gravity == NorthWestGravity
&& previously_visible)
{
Drawable rootw;
int x, y;
unsigned int width, height, border, depth;
block_input ();
/* On some window managers (such as FVWM) moving an existing
window, even to the same place, causes the window manager
to introduce an offset. This can cause the window to move
to an unexpected location. Check the geometry (a little
slow here) and then verify that the window is in the right
place. If the window is not in the right place, move it
there, and take the potential window manager hit. */
XGetGeometry (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
&rootw, &x, &y, &width, &height, &border, &depth);
if (original_left != x || original_top != y)
XMoveWindow (FRAME_X_DISPLAY (f), FRAME_OUTER_WINDOW (f),
original_left, original_top);
unblock_input ();
}
XSETFRAME (frame, f);
/* Process X events until a MapNotify event has been seen. */
while (!FRAME_VISIBLE_P (f))
{
/* Force processing of queued events. */
x_sync (f);
/* If on another desktop, the deiconify/map may be ignored and the
frame never becomes visible. XMonad does this.
Prevent an endless loop. */
if (FRAME_ICONIFIED_P (f) && ++tries > 100)
break;
/* This hack is still in use at least for Cygwin. See
http://lists.gnu.org/archive/html/emacs-devel/2013-12/msg00351.html.
Machines that do polling rather than SIGIO have been
observed to go into a busy-wait here. So we'll fake an
alarm signal to let the handler know that there's something
to be read. We used to raise a real alarm, but it seems
that the handler isn't always enabled here. This is
probably a bug. */
if (input_polling_used ())
{
/* It could be confusing if a real alarm arrives while
processing the fake one. Turn it off and let the
handler reset it. */
int old_poll_suppress_count = poll_suppress_count;
poll_suppress_count = 1;
poll_for_input_1 ();
poll_suppress_count = old_poll_suppress_count;
}
if (XPending (FRAME_X_DISPLAY (f)))
{
XEvent xev;
XNextEvent (FRAME_X_DISPLAY (f), &xev);
x_dispatch_event (&xev, FRAME_X_DISPLAY (f));
}
}
}
}
/* Change from mapped state to withdrawn state. */
/* Make the frame visible (mapped and not iconified). */
void
x_make_frame_invisible (struct frame *f)
{
Window window;
/* Use the frame's outermost window, not the one we normally draw on. */
window = FRAME_OUTER_WINDOW (f);
/* Don't keep the highlight on an invisible frame. */
if (FRAME_DISPLAY_INFO (f)->x_highlight_frame == f)
FRAME_DISPLAY_INFO (f)->x_highlight_frame = 0;
block_input ();
/* Before unmapping the window, update the WM_SIZE_HINTS property to claim
that the current position of the window is user-specified, rather than
program-specified, so that when the window is mapped again, it will be
placed at the same location, without forcing the user to position it
by hand again (they have already done that once for this window.) */
x_wm_set_size_hint (f, (long) 0, 1);
#ifdef USE_GTK
if (FRAME_GTK_OUTER_WIDGET (f))
gtk_widget_hide (FRAME_GTK_OUTER_WIDGET (f));
else
#else
if (FRAME_X_EMBEDDED_P (f))
xembed_set_info (f, 0);
else
#endif
{
if (! XWithdrawWindow (FRAME_X_DISPLAY (f), window,
DefaultScreen (FRAME_X_DISPLAY (f))))
{
unblock_input ();
error ("Can't notify window manager of window withdrawal");
}
}
/* We can't distinguish this from iconification
just by the event that we get from the server.
So we can't win using the usual strategy of letting
FRAME_SAMPLE_VISIBILITY set this. So do it by hand,
and synchronize with the server to make sure we agree. */
SET_FRAME_VISIBLE (f, 0);
SET_FRAME_ICONIFIED (f, 0);
x_sync (f);
unblock_input ();
}
/* Change window state from mapped to iconified. */
void
x_iconify_frame (struct frame *f)
{
#ifdef USE_X_TOOLKIT
int result;
#endif
/* Don't keep the highlight on an invisible frame. */
if (FRAME_DISPLAY_INFO (f)->x_highlight_frame == f)
FRAME_DISPLAY_INFO (f)->x_highlight_frame = 0;
if (FRAME_ICONIFIED_P (f))
return;
block_input ();
x_set_bitmap_icon (f);
#if defined (USE_GTK)
if (FRAME_GTK_OUTER_WIDGET (f))
{
if (! FRAME_VISIBLE_P (f))
gtk_widget_show_all (FRAME_GTK_OUTER_WIDGET (f));
gtk_window_iconify (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)));
SET_FRAME_VISIBLE (f, 0);
SET_FRAME_ICONIFIED (f, 1);
unblock_input ();
return;
}
#endif
#ifdef USE_X_TOOLKIT
if (! FRAME_VISIBLE_P (f))
{
if (! EQ (Vx_no_window_manager, Qt))
x_wm_set_window_state (f, IconicState);
/* This was XtPopup, but that did nothing for an iconified frame. */
XtMapWidget (f->output_data.x->widget);
/* The server won't give us any event to indicate
that an invisible frame was changed to an icon,
so we have to record it here. */
SET_FRAME_VISIBLE (f, 0);
SET_FRAME_ICONIFIED (f, 1);
unblock_input ();
return;
}
result = XIconifyWindow (FRAME_X_DISPLAY (f),
XtWindow (f->output_data.x->widget),
DefaultScreen (FRAME_X_DISPLAY (f)));
unblock_input ();
if (!result)
error ("Can't notify window manager of iconification");
SET_FRAME_ICONIFIED (f, 1);
SET_FRAME_VISIBLE (f, 0);
block_input ();
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
#else /* not USE_X_TOOLKIT */
/* Make sure the X server knows where the window should be positioned,
in case the user deiconifies with the window manager. */
if (! FRAME_VISIBLE_P (f)
&& ! FRAME_ICONIFIED_P (f)
&& ! FRAME_X_EMBEDDED_P (f))
x_set_offset (f, f->left_pos, f->top_pos, 0);
/* Since we don't know which revision of X we're running, we'll use both
the X11R3 and X11R4 techniques. I don't know if this is a good idea. */
/* X11R4: send a ClientMessage to the window manager using the
WM_CHANGE_STATE type. */
{
XEvent msg;
msg.xclient.window = FRAME_X_WINDOW (f);
msg.xclient.type = ClientMessage;
msg.xclient.message_type = FRAME_DISPLAY_INFO (f)->Xatom_wm_change_state;
msg.xclient.format = 32;
msg.xclient.data.l[0] = IconicState;
if (! XSendEvent (FRAME_X_DISPLAY (f),
DefaultRootWindow (FRAME_X_DISPLAY (f)),
False,
SubstructureRedirectMask | SubstructureNotifyMask,
&msg))
{
unblock_input ();
error ("Can't notify window manager of iconification");
}
}
/* X11R3: set the initial_state field of the window manager hints to
IconicState. */
x_wm_set_window_state (f, IconicState);
if (!FRAME_VISIBLE_P (f))
{
/* If the frame was withdrawn, before, we must map it. */
XMapRaised (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
}
SET_FRAME_ICONIFIED (f, 1);
SET_FRAME_VISIBLE (f, 0);
XFlush (FRAME_X_DISPLAY (f));
unblock_input ();
#endif /* not USE_X_TOOLKIT */
}
\f
/* Free X resources of frame F. */
void
x_free_frame_resources (struct frame *f)
{
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
Mouse_HLInfo *hlinfo = &dpyinfo->mouse_highlight;
#ifdef USE_X_TOOLKIT
Lisp_Object bar;
struct scroll_bar *b;
#endif
block_input ();
/* If a display connection is dead, don't try sending more
commands to the X server. */
if (dpyinfo->display)
{
/* We must free faces before destroying windows because some
font-driver (e.g. xft) access a window while finishing a
face. */
free_frame_faces (f);
if (f->output_data.x->icon_desc)
XDestroyWindow (FRAME_X_DISPLAY (f), f->output_data.x->icon_desc);
#ifdef USE_X_TOOLKIT
/* Explicitly destroy the scroll bars of the frame. Without
this, we get "BadDrawable" errors from the toolkit later on,
presumably from expose events generated for the disappearing
toolkit scroll bars. */
for (bar = FRAME_SCROLL_BARS (f); !NILP (bar); bar = b->next)
{
b = XSCROLL_BAR (bar);
x_scroll_bar_remove (b);
}
#endif
#ifdef HAVE_X_I18N
if (FRAME_XIC (f))
free_frame_xic (f);
#endif
#ifdef USE_X_TOOLKIT
if (f->output_data.x->widget)
{
XtDestroyWidget (f->output_data.x->widget);
f->output_data.x->widget = NULL;
}
/* Tooltips don't have widgets, only a simple X window, even if
we are using a toolkit. */
else if (FRAME_X_WINDOW (f))
XDestroyWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
free_frame_menubar (f);
#else /* !USE_X_TOOLKIT */
#ifdef USE_GTK
xg_free_frame_widgets (f);
#endif /* USE_GTK */
if (FRAME_X_WINDOW (f))
XDestroyWindow (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f));
#endif /* !USE_X_TOOLKIT */
unload_color (f, FRAME_FOREGROUND_PIXEL (f));
unload_color (f, FRAME_BACKGROUND_PIXEL (f));
unload_color (f, f->output_data.x->cursor_pixel);
unload_color (f, f->output_data.x->cursor_foreground_pixel);
unload_color (f, f->output_data.x->border_pixel);
unload_color (f, f->output_data.x->mouse_pixel);
if (f->output_data.x->scroll_bar_background_pixel != -1)
unload_color (f, f->output_data.x->scroll_bar_background_pixel);
if (f->output_data.x->scroll_bar_foreground_pixel != -1)
unload_color (f, f->output_data.x->scroll_bar_foreground_pixel);
#ifdef USE_TOOLKIT_SCROLL_BARS
/* Scrollbar shadow colors. */
if (f->output_data.x->scroll_bar_top_shadow_pixel != -1)
unload_color (f, f->output_data.x->scroll_bar_top_shadow_pixel);
if (f->output_data.x->scroll_bar_bottom_shadow_pixel != -1)
unload_color (f, f->output_data.x->scroll_bar_bottom_shadow_pixel);
#endif /* USE_TOOLKIT_SCROLL_BARS */
if (f->output_data.x->white_relief.pixel != -1)
unload_color (f, f->output_data.x->white_relief.pixel);
if (f->output_data.x->black_relief.pixel != -1)
unload_color (f, f->output_data.x->black_relief.pixel);
x_free_gcs (f);
/* Free extra GCs allocated by x_setup_relief_colors. */
if (f->output_data.x->white_relief.gc)
{
XFreeGC (dpyinfo->display, f->output_data.x->white_relief.gc);
f->output_data.x->white_relief.gc = 0;
}
if (f->output_data.x->black_relief.gc)
{
XFreeGC (dpyinfo->display, f->output_data.x->black_relief.gc);
f->output_data.x->black_relief.gc = 0;
}
/* Free cursors. */
if (f->output_data.x->text_cursor != 0)
XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->text_cursor);
if (f->output_data.x->nontext_cursor != 0)
XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->nontext_cursor);
if (f->output_data.x->modeline_cursor != 0)
XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->modeline_cursor);
if (f->output_data.x->hand_cursor != 0)
XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->hand_cursor);
if (f->output_data.x->hourglass_cursor != 0)
XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->hourglass_cursor);
if (f->output_data.x->horizontal_drag_cursor != 0)
XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->horizontal_drag_cursor);
if (f->output_data.x->vertical_drag_cursor != 0)
XFreeCursor (FRAME_X_DISPLAY (f), f->output_data.x->vertical_drag_cursor);
XFlush (FRAME_X_DISPLAY (f));
}
xfree (f->output_data.x->saved_menu_event);
xfree (f->output_data.x);
f->output_data.x = NULL;
if (f == dpyinfo->x_focus_frame)
dpyinfo->x_focus_frame = 0;
if (f == dpyinfo->x_focus_event_frame)
dpyinfo->x_focus_event_frame = 0;
if (f == dpyinfo->x_highlight_frame)
dpyinfo->x_highlight_frame = 0;
if (f == hlinfo->mouse_face_mouse_frame)
reset_mouse_highlight (hlinfo);
unblock_input ();
}
/* Destroy the X window of frame F. */
static void
x_destroy_window (struct frame *f)
{
struct x_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
/* If a display connection is dead, don't try sending more
commands to the X server. */
if (dpyinfo->display != 0)
x_free_frame_resources (f);
dpyinfo->reference_count--;
}
\f
/* Setting window manager hints. */
/* Set the normal size hints for the window manager, for frame F.
FLAGS is the flags word to use--or 0 meaning preserve the flags
that the window now has.
If USER_POSITION, set the USPosition
flag (this is useful when FLAGS is 0).
The GTK version is in gtkutils.c. */
#ifndef USE_GTK
void
x_wm_set_size_hint (struct frame *f, long flags, bool user_position)
{
XSizeHints size_hints;
Window window = FRAME_OUTER_WINDOW (f);
#ifdef USE_X_TOOLKIT
if (f->output_data.x->widget)
{
widget_update_wm_size_hints (f->output_data.x->widget);
return;
}
#endif
/* Setting PMaxSize caused various problems. */
size_hints.flags = PResizeInc | PMinSize /* | PMaxSize */;
size_hints.x = f->left_pos;
size_hints.y = f->top_pos;
size_hints.height = FRAME_PIXEL_HEIGHT (f);
size_hints.width = FRAME_PIXEL_WIDTH (f);
size_hints.width_inc = frame_resize_pixelwise ? 1 : FRAME_COLUMN_WIDTH (f);
size_hints.height_inc = frame_resize_pixelwise ? 1 : FRAME_LINE_HEIGHT (f);
size_hints.max_width = x_display_pixel_width (FRAME_DISPLAY_INFO (f))
- FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, 0);
size_hints.max_height = x_display_pixel_height (FRAME_DISPLAY_INFO (f))
- FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, 0);
/* Calculate the base and minimum sizes. */
{
int base_width, base_height;
int min_rows = 0, min_cols = 0;
base_width = FRAME_TEXT_COLS_TO_PIXEL_WIDTH (f, 0);
base_height = FRAME_TEXT_LINES_TO_PIXEL_HEIGHT (f, 0);
check_frame_size (f, &min_cols, &min_rows, 0);
if (frame_resize_pixelwise)
/* Needed to prevent a bad protocol error crash when making the
frame size very small. */
{
min_cols = 2 * min_cols;
min_rows = 2 * min_rows;
}
/* The window manager uses the base width hints to calculate the
current number of rows and columns in the frame while
resizing; min_width and min_height aren't useful for this
purpose, since they might not give the dimensions for a
zero-row, zero-column frame.
We use the base_width and base_height members if we have
them; otherwise, we set the min_width and min_height members
to the size for a zero x zero frame. */
size_hints.flags |= PBaseSize;
size_hints.base_width = base_width;
size_hints.base_height = base_height + FRAME_MENUBAR_HEIGHT (f);
size_hints.min_width = base_width + min_cols * FRAME_COLUMN_WIDTH (f);
size_hints.min_height = base_height + min_rows * FRAME_LINE_HEIGHT (f);
}
/* If we don't need the old flags, we don't need the old hint at all. */
if (flags)
{
size_hints.flags |= flags;
goto no_read;
}
{
XSizeHints hints; /* Sometimes I hate X Windows... */
long supplied_return;
int value;
value = XGetWMNormalHints (FRAME_X_DISPLAY (f), window, &hints,
&supplied_return);
if (flags)
size_hints.flags |= flags;
else
{
if (value == 0)
hints.flags = 0;
if (hints.flags & PSize)
size_hints.flags |= PSize;
if (hints.flags & PPosition)
size_hints.flags |= PPosition;
if (hints.flags & USPosition)
size_hints.flags |= USPosition;
if (hints.flags & USSize)
size_hints.flags |= USSize;
}
}
no_read:
#ifdef PWinGravity
size_hints.win_gravity = f->win_gravity;
size_hints.flags |= PWinGravity;
if (user_position)
{
size_hints.flags &= ~ PPosition;
size_hints.flags |= USPosition;
}
#endif /* PWinGravity */
XSetWMNormalHints (FRAME_X_DISPLAY (f), window, &size_hints);
}
#endif /* not USE_GTK */
/* Used for IconicState or NormalState */
static void
x_wm_set_window_state (struct frame *f, int state)
{
#ifdef USE_X_TOOLKIT
Arg al[1];
XtSetArg (al[0], XtNinitialState, state);
XtSetValues (f->output_data.x->widget, al, 1);
#else /* not USE_X_TOOLKIT */
Window window = FRAME_X_WINDOW (f);
f->output_data.x->wm_hints.flags |= StateHint;
f->output_data.x->wm_hints.initial_state = state;
XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints);
#endif /* not USE_X_TOOLKIT */
}
static void
x_wm_set_icon_pixmap (struct frame *f, ptrdiff_t pixmap_id)
{
Pixmap icon_pixmap, icon_mask;
#if !defined USE_X_TOOLKIT && !defined USE_GTK
Window window = FRAME_OUTER_WINDOW (f);
#endif
if (pixmap_id > 0)
{
icon_pixmap = x_bitmap_pixmap (f, pixmap_id);
f->output_data.x->wm_hints.icon_pixmap = icon_pixmap;
icon_mask = x_bitmap_mask (f, pixmap_id);
f->output_data.x->wm_hints.icon_mask = icon_mask;
}
else
{
/* It seems there is no way to turn off use of an icon
pixmap. */
return;
}
#ifdef USE_GTK
{
xg_set_frame_icon (f, icon_pixmap, icon_mask);
return;
}
#elif defined (USE_X_TOOLKIT) /* same as in x_wm_set_window_state. */
{
Arg al[1];
XtSetArg (al[0], XtNiconPixmap, icon_pixmap);
XtSetValues (f->output_data.x->widget, al, 1);
XtSetArg (al[0], XtNiconMask, icon_mask);
XtSetValues (f->output_data.x->widget, al, 1);
}
#else /* not USE_X_TOOLKIT && not USE_GTK */
f->output_data.x->wm_hints.flags |= (IconPixmapHint | IconMaskHint);
XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints);
#endif /* not USE_X_TOOLKIT && not USE_GTK */
}
void
x_wm_set_icon_position (struct frame *f, int icon_x, int icon_y)
{
Window window = FRAME_OUTER_WINDOW (f);
f->output_data.x->wm_hints.flags |= IconPositionHint;
f->output_data.x->wm_hints.icon_x = icon_x;
f->output_data.x->wm_hints.icon_y = icon_y;
XSetWMHints (FRAME_X_DISPLAY (f), window, &f->output_data.x->wm_hints);
}
\f
/***********************************************************************
Fonts
***********************************************************************/
#ifdef GLYPH_DEBUG
/* Check that FONT is valid on frame F. It is if it can be found in F's
font table. */
static void
x_check_font (struct frame *f, struct font *font)
{
eassert (font != NULL && ! NILP (font->props[FONT_TYPE_INDEX]));
if (font->driver->check)
eassert (font->driver->check (f, font) == 0);
}
#endif /* GLYPH_DEBUG */
\f
/***********************************************************************
Initialization
***********************************************************************/
#ifdef USE_X_TOOLKIT
static XrmOptionDescRec emacs_options[] = {
{"-geometry", ".geometry", XrmoptionSepArg, NULL},
{"-iconic", ".iconic", XrmoptionNoArg, (XtPointer) "yes"},
{"-internal-border-width", "*EmacsScreen.internalBorderWidth",
XrmoptionSepArg, NULL},
{"-ib", "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL},
{"-T", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL},
{"-wn", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL},
{"-title", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL},
{"-iconname", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL},
{"-in", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL},
{"-mc", "*pointerColor", XrmoptionSepArg, (XtPointer) NULL},
{"-cr", "*cursorColor", XrmoptionSepArg, (XtPointer) NULL}
};
/* Whether atimer for Xt timeouts is activated or not. */
static int x_timeout_atimer_activated_flag;
#endif /* USE_X_TOOLKIT */
static int x_initialized;
/* Test whether two display-name strings agree up to the dot that separates
the screen number from the server number. */
static int
same_x_server (const char *name1, const char *name2)
{
int seen_colon = 0;
const char *system_name = SSDATA (Vsystem_name);
ptrdiff_t system_name_length = SBYTES (Vsystem_name);
ptrdiff_t length_until_period = 0;
while (system_name[length_until_period] != 0
&& system_name[length_until_period] != '.')
length_until_period++;
/* Treat `unix' like an empty host name. */
if (! strncmp (name1, "unix:", 5))
name1 += 4;
if (! strncmp (name2, "unix:", 5))
name2 += 4;
/* Treat this host's name like an empty host name. */
if (! strncmp (name1, system_name, system_name_length)
&& name1[system_name_length] == ':')
name1 += system_name_length;
if (! strncmp (name2, system_name, system_name_length)
&& name2[system_name_length] == ':')
name2 += system_name_length;
/* Treat this host's domainless name like an empty host name. */
if (! strncmp (name1, system_name, length_until_period)
&& name1[length_until_period] == ':')
name1 += length_until_period;
if (! strncmp (name2, system_name, length_until_period)
&& name2[length_until_period] == ':')
name2 += length_until_period;
for (; *name1 != '\0' && *name1 == *name2; name1++, name2++)
{
if (*name1 == ':')
seen_colon = 1;
if (seen_colon && *name1 == '.')
return 1;
}
return (seen_colon
&& (*name1 == '.' || *name1 == '\0')
&& (*name2 == '.' || *name2 == '\0'));
}
/* Count number of set bits in mask and number of bits to shift to
get to the first bit. With MASK 0x7e0, *BITS is set to 6, and *OFFSET
to 5. */
static void
get_bits_and_offset (unsigned long mask, int *bits, int *offset)
{
int nr = 0;
int off = 0;
while (!(mask & 1))
{
off++;
mask >>= 1;
}
while (mask & 1)
{
nr++;
mask >>= 1;
}
*offset = off;
*bits = nr;
}
/* Return 1 if display DISPLAY is available for use, 0 otherwise.
But don't permanently open it, just test its availability. */
bool
x_display_ok (const char *display)
{
Display *dpy = XOpenDisplay (display);
return dpy ? (XCloseDisplay (dpy), 1) : 0;
}
#ifdef USE_GTK
static void
my_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
const gchar *msg, gpointer user_data)
{
if (!strstr (msg, "g_set_prgname"))
fprintf (stderr, "%s-WARNING **: %s\n", log_domain, msg);
}
#endif
/* Current X display connection identifier. Incremented for each next
connection established. */
static unsigned x_display_id;
/* Open a connection to X display DISPLAY_NAME, and return
the structure that describes the open display.
If we cannot contact the display, return null. */
struct x_display_info *
x_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
{
int connection;
Display *dpy;
struct terminal *terminal;
struct x_display_info *dpyinfo;
XrmDatabase xrdb;
ptrdiff_t lim;
block_input ();
if (!x_initialized)
{
x_initialize ();
++x_initialized;
}
if (! x_display_ok (SSDATA (display_name)))
error ("Display %s can't be opened", SSDATA (display_name));
#ifdef USE_GTK
{
#define NUM_ARGV 10
int argc;
char *argv[NUM_ARGV];
char **argv2 = argv;
guint id;
if (x_initialized++ > 1)
{
xg_display_open (SSDATA (display_name), &dpy);
}
else
{
static char display_opt[] = "--display";
static char name_opt[] = "--name";
for (argc = 0; argc < NUM_ARGV; ++argc)
argv[argc] = 0;
argc = 0;
argv[argc++] = initial_argv[0];
if (! NILP (display_name))
{
argv[argc++] = display_opt;
argv[argc++] = SSDATA (display_name);
}
argv[argc++] = name_opt;
argv[argc++] = resource_name;
XSetLocaleModifiers ("");
/* Emacs can only handle core input events, so make sure
Gtk doesn't use Xinput or Xinput2 extensions. */
xputenv ("GDK_CORE_DEVICE_EVENTS=1");
/* Work around GLib bug that outputs a faulty warning. See
https://bugzilla.gnome.org/show_bug.cgi?id=563627. */
id = g_log_set_handler ("GLib", G_LOG_LEVEL_WARNING | G_LOG_FLAG_FATAL
| G_LOG_FLAG_RECURSION, my_log_handler, NULL);
/* NULL window -> events for all windows go to our function.
Call before gtk_init so Gtk+ event filters comes after our. */
gdk_window_add_filter (NULL, event_handler_gdk, NULL);
/* gtk_init does set_locale. Fix locale before and after. */
fixup_locale ();
gtk_init (&argc, &argv2);
fixup_locale ();
g_log_remove_handler ("GLib", id);
xg_initialize ();
dpy = DEFAULT_GDK_DISPLAY ();
#if ! GTK_CHECK_VERSION (2, 90, 0)
/* Load our own gtkrc if it exists. */
{
const char *file = "~/.emacs.d/gtkrc";
Lisp_Object s, abs_file;
s = build_string (file);
abs_file = Fexpand_file_name (s, Qnil);
if (! NILP (abs_file) && !NILP (Ffile_readable_p (abs_file)))
gtk_rc_parse (SSDATA (abs_file));
}
#endif
XSetErrorHandler (x_error_handler);
XSetIOErrorHandler (x_io_error_quitter);
}
}
#else /* not USE_GTK */
#ifdef USE_X_TOOLKIT
/* weiner@footloose.sps.mot.com reports that this causes
errors with X11R5:
X protocol error: BadAtom (invalid Atom parameter)
on protocol request 18skiloaf.
So let's not use it until R6. */
#ifdef HAVE_X11XTR6
XtSetLanguageProc (NULL, NULL, NULL);
#endif
{
int argc = 0;
char *argv[3];
argv[0] = "";
argc = 1;
if (xrm_option)
{
argv[argc++] = "-xrm";
argv[argc++] = xrm_option;
}
turn_on_atimers (0);
dpy = XtOpenDisplay (Xt_app_con, SSDATA (display_name),
resource_name, EMACS_CLASS,
emacs_options, XtNumber (emacs_options),
&argc, argv);
turn_on_atimers (1);
#ifdef HAVE_X11XTR6
/* I think this is to compensate for XtSetLanguageProc. */
fixup_locale ();
#endif
}
#else /* not USE_X_TOOLKIT */
XSetLocaleModifiers ("");
dpy = XOpenDisplay (SSDATA (display_name));
#endif /* not USE_X_TOOLKIT */
#endif /* not USE_GTK*/
/* Detect failure. */
if (dpy == 0)
{
unblock_input ();
return 0;
}
/* We have definitely succeeded. Record the new connection. */
dpyinfo = xzalloc (sizeof *dpyinfo);
terminal = x_create_terminal (dpyinfo);
{
struct x_display_info *share;
for (share = x_display_list; share; share = share->next)
if (same_x_server (SSDATA (XCAR (share->name_list_element)),
SSDATA (display_name)))
break;
if (share)
terminal->kboard = share->terminal->kboard;
else
{
terminal->kboard = allocate_kboard (Qx);
if (!EQ (XSYMBOL (Qvendor_specific_keysyms)->function, Qunbound))
{
char *vendor = ServerVendor (dpy);
/* Protect terminal from GC before removing it from the
list of terminals. */
struct gcpro gcpro1;
Lisp_Object gcpro_term;
XSETTERMINAL (gcpro_term, terminal);
GCPRO1 (gcpro_term);
/* Temporarily hide the partially initialized terminal. */
terminal_list = terminal->next_terminal;
unblock_input ();
kset_system_key_alist
(terminal->kboard,
call1 (Qvendor_specific_keysyms,
vendor ? build_string (vendor) : empty_unibyte_string));
block_input ();
terminal->next_terminal = terminal_list;
terminal_list = terminal;
UNGCPRO;
}
/* Don't let the initial kboard remain current longer than necessary.
That would cause problems if a file loaded on startup tries to
prompt in the mini-buffer. */
if (current_kboard == initial_kboard)
current_kboard = terminal->kboard;
}
terminal->kboard->reference_count++;
}
/* Put this display on the chain. */
dpyinfo->next = x_display_list;
x_display_list = dpyinfo;
dpyinfo->name_list_element = Fcons (display_name, Qnil);
dpyinfo->display = dpy;
dpyinfo->connection = ConnectionNumber (dpyinfo->display);
/* Set the name of the terminal. */
terminal->name = xlispstrdup (display_name);
#if 0
XSetAfterFunction (x_current_display, x_trace_wire);
#endif /* ! 0 */
lim = min (PTRDIFF_MAX, SIZE_MAX) - sizeof "@";
if (lim - SBYTES (Vinvocation_name) < SBYTES (Vsystem_name))
memory_full (SIZE_MAX);
dpyinfo->x_id = ++x_display_id;
dpyinfo->x_id_name = xmalloc (SBYTES (Vinvocation_name)
+ SBYTES (Vsystem_name) + 2);
strcat (strcat (strcpy (dpyinfo->x_id_name, SSDATA (Vinvocation_name)), "@"),
SSDATA (Vsystem_name));
/* Figure out which modifier bits mean what. */
x_find_modifier_meanings (dpyinfo);
/* Get the scroll bar cursor. */
#ifdef USE_GTK
/* We must create a GTK cursor, it is required for GTK widgets. */
dpyinfo->xg_cursor = xg_create_default_cursor (dpyinfo->display);
#endif /* USE_GTK */
dpyinfo->vertical_scroll_bar_cursor
= XCreateFontCursor (dpyinfo->display, XC_sb_v_double_arrow);
xrdb = x_load_resources (dpyinfo->display, xrm_option,
resource_name, EMACS_CLASS);
#ifdef HAVE_XRMSETDATABASE
XrmSetDatabase (dpyinfo->display, xrdb);
#else
dpyinfo->display->db = xrdb;
#endif
/* Put the rdb where we can find it in a way that works on
all versions. */
dpyinfo->xrdb = xrdb;
dpyinfo->screen = ScreenOfDisplay (dpyinfo->display,
DefaultScreen (dpyinfo->display));
select_visual (dpyinfo);
dpyinfo->cmap = DefaultColormapOfScreen (dpyinfo->screen);
dpyinfo->root_window = RootWindowOfScreen (dpyinfo->screen);
dpyinfo->icon_bitmap_id = -1;
dpyinfo->wm_type = X_WMTYPE_UNKNOWN;
reset_mouse_highlight (&dpyinfo->mouse_highlight);
/* See if we can construct pixel values from RGB values. */
if (dpyinfo->visual->class == TrueColor)
{
get_bits_and_offset (dpyinfo->visual->red_mask,
&dpyinfo->red_bits, &dpyinfo->red_offset);
get_bits_and_offset (dpyinfo->visual->blue_mask,
&dpyinfo->blue_bits, &dpyinfo->blue_offset);
get_bits_and_offset (dpyinfo->visual->green_mask,
&dpyinfo->green_bits, &dpyinfo->green_offset);
}
/* See if a private colormap is requested. */
if (dpyinfo->visual == DefaultVisualOfScreen (dpyinfo->screen))
{
if (dpyinfo->visual->class == PseudoColor)
{
Lisp_Object value;
value = display_x_get_resource (dpyinfo,
build_string ("privateColormap"),
build_string ("PrivateColormap"),
Qnil, Qnil);
if (STRINGP (value)
&& (!strcmp (SSDATA (value), "true")
|| !strcmp (SSDATA (value), "on")))
dpyinfo->cmap = XCopyColormapAndFree (dpyinfo->display, dpyinfo->cmap);
}
}
else
dpyinfo->cmap = XCreateColormap (dpyinfo->display, dpyinfo->root_window,
dpyinfo->visual, AllocNone);
#ifdef HAVE_XFT
{
/* If we are using Xft, check dpi value in X resources.
It is better we use it as well, since Xft will use it, as will all
Gnome applications. If our real DPI is smaller or larger than the
one Xft uses, our font will look smaller or larger than other
for other applications, even if it is the same font name (monospace-10
for example). */
char *v = XGetDefault (dpyinfo->display, "Xft", "dpi");
double d;
if (v != NULL && sscanf (v, "%lf", &d) == 1)
dpyinfo->resy = dpyinfo->resx = d;
}
#endif
if (dpyinfo->resy < 1)
{
int screen_number = XScreenNumberOfScreen (dpyinfo->screen);
double pixels = DisplayHeight (dpyinfo->display, screen_number);
double mm = DisplayHeightMM (dpyinfo->display, screen_number);
/* Mac OS X 10.3's Xserver sometimes reports 0.0mm. */
dpyinfo->resy = (mm < 1) ? 100 : pixels * 25.4 / mm;
pixels = DisplayWidth (dpyinfo->display, screen_number);
mm = DisplayWidthMM (dpyinfo->display, screen_number);
/* Mac OS X 10.3's Xserver sometimes reports 0.0mm. */
dpyinfo->resx = (mm < 1) ? 100 : pixels * 25.4 / mm;
}
{
static const struct
{
const char *name;
int offset;
} atom_refs[] = {
#define ATOM_REFS_INIT(string, member) \
{ string, offsetof (struct x_display_info, member) },
ATOM_REFS_INIT ("WM_PROTOCOLS", Xatom_wm_protocols)
ATOM_REFS_INIT ("WM_TAKE_FOCUS", Xatom_wm_take_focus)
ATOM_REFS_INIT ("WM_SAVE_YOURSELF", Xatom_wm_save_yourself)
ATOM_REFS_INIT ("WM_DELETE_WINDOW", Xatom_wm_delete_window)
ATOM_REFS_INIT ("WM_CHANGE_STATE", Xatom_wm_change_state)
ATOM_REFS_INIT ("WM_CONFIGURE_DENIED", Xatom_wm_configure_denied)
ATOM_REFS_INIT ("WM_MOVED", Xatom_wm_window_moved)
ATOM_REFS_INIT ("WM_CLIENT_LEADER", Xatom_wm_client_leader)
ATOM_REFS_INIT ("Editres", Xatom_editres)
ATOM_REFS_INIT ("CLIPBOARD", Xatom_CLIPBOARD)
ATOM_REFS_INIT ("TIMESTAMP", Xatom_TIMESTAMP)
ATOM_REFS_INIT ("TEXT", Xatom_TEXT)
ATOM_REFS_INIT ("COMPOUND_TEXT", Xatom_COMPOUND_TEXT)
ATOM_REFS_INIT ("UTF8_STRING", Xatom_UTF8_STRING)
ATOM_REFS_INIT ("DELETE", Xatom_DELETE)
ATOM_REFS_INIT ("MULTIPLE", Xatom_MULTIPLE)
ATOM_REFS_INIT ("INCR", Xatom_INCR)
ATOM_REFS_INIT ("_EMACS_TMP_", Xatom_EMACS_TMP)
ATOM_REFS_INIT ("TARGETS", Xatom_TARGETS)
ATOM_REFS_INIT ("NULL", Xatom_NULL)
ATOM_REFS_INIT ("ATOM", Xatom_ATOM)
ATOM_REFS_INIT ("ATOM_PAIR", Xatom_ATOM_PAIR)
ATOM_REFS_INIT ("CLIPBOARD_MANAGER", Xatom_CLIPBOARD_MANAGER)
ATOM_REFS_INIT ("_XEMBED_INFO", Xatom_XEMBED_INFO)
/* For properties of font. */
ATOM_REFS_INIT ("PIXEL_SIZE", Xatom_PIXEL_SIZE)
ATOM_REFS_INIT ("AVERAGE_WIDTH", Xatom_AVERAGE_WIDTH)
ATOM_REFS_INIT ("_MULE_BASELINE_OFFSET", Xatom_MULE_BASELINE_OFFSET)
ATOM_REFS_INIT ("_MULE_RELATIVE_COMPOSE", Xatom_MULE_RELATIVE_COMPOSE)
ATOM_REFS_INIT ("_MULE_DEFAULT_ASCENT", Xatom_MULE_DEFAULT_ASCENT)
/* Ghostscript support. */
ATOM_REFS_INIT ("DONE", Xatom_DONE)
ATOM_REFS_INIT ("PAGE", Xatom_PAGE)
ATOM_REFS_INIT ("SCROLLBAR", Xatom_Scrollbar)
ATOM_REFS_INIT ("_XEMBED", Xatom_XEMBED)
/* EWMH */
ATOM_REFS_INIT ("_NET_WM_STATE", Xatom_net_wm_state)
ATOM_REFS_INIT ("_NET_WM_STATE_FULLSCREEN", Xatom_net_wm_state_fullscreen)
ATOM_REFS_INIT ("_NET_WM_STATE_MAXIMIZED_HORZ",
Xatom_net_wm_state_maximized_horz)
ATOM_REFS_INIT ("_NET_WM_STATE_MAXIMIZED_VERT",
Xatom_net_wm_state_maximized_vert)
ATOM_REFS_INIT ("_NET_WM_STATE_STICKY", Xatom_net_wm_state_sticky)
ATOM_REFS_INIT ("_NET_WM_STATE_HIDDEN", Xatom_net_wm_state_hidden)
ATOM_REFS_INIT ("_NET_WM_WINDOW_TYPE", Xatom_net_window_type)
ATOM_REFS_INIT ("_NET_WM_WINDOW_TYPE_TOOLTIP",
Xatom_net_window_type_tooltip)
ATOM_REFS_INIT ("_NET_WM_ICON_NAME", Xatom_net_wm_icon_name)
ATOM_REFS_INIT ("_NET_WM_NAME", Xatom_net_wm_name)
ATOM_REFS_INIT ("_NET_SUPPORTED", Xatom_net_supported)
ATOM_REFS_INIT ("_NET_SUPPORTING_WM_CHECK", Xatom_net_supporting_wm_check)
ATOM_REFS_INIT ("_NET_WM_WINDOW_OPACITY", Xatom_net_wm_window_opacity)
ATOM_REFS_INIT ("_NET_ACTIVE_WINDOW", Xatom_net_active_window)
ATOM_REFS_INIT ("_NET_FRAME_EXTENTS", Xatom_net_frame_extents)
ATOM_REFS_INIT ("_NET_CURRENT_DESKTOP", Xatom_net_current_desktop)
ATOM_REFS_INIT ("_NET_WORKAREA", Xatom_net_workarea)
/* Session management */
ATOM_REFS_INIT ("SM_CLIENT_ID", Xatom_SM_CLIENT_ID)
ATOM_REFS_INIT ("_XSETTINGS_SETTINGS", Xatom_xsettings_prop)
ATOM_REFS_INIT ("MANAGER", Xatom_xsettings_mgr)
};
int i;
const int atom_count = sizeof (atom_refs) / sizeof (atom_refs[0]);
/* 1 for _XSETTINGS_SN */
const int total_atom_count = 1 + atom_count;
Atom *atoms_return = xmalloc (total_atom_count * sizeof *atoms_return);
char **atom_names = xmalloc (total_atom_count * sizeof *atom_names);
static char const xsettings_fmt[] = "_XSETTINGS_S%d";
char xsettings_atom_name[sizeof xsettings_fmt - 2
+ INT_STRLEN_BOUND (int)];
for (i = 0; i < atom_count; i++)
atom_names[i] = (char *) atom_refs[i].name;
/* Build _XSETTINGS_SN atom name */
sprintf (xsettings_atom_name, xsettings_fmt,
XScreenNumberOfScreen (dpyinfo->screen));
atom_names[i] = xsettings_atom_name;
XInternAtoms (dpyinfo->display, atom_names, total_atom_count,
False, atoms_return);
for (i = 0; i < atom_count; i++)
*(Atom *) ((char *) dpyinfo + atom_refs[i].offset) = atoms_return[i];
/* Manual copy of last atom */
dpyinfo->Xatom_xsettings_sel = atoms_return[i];
xfree (atom_names);
xfree (atoms_return);
}
dpyinfo->x_dnd_atoms_size = 8;
dpyinfo->x_dnd_atoms = xmalloc (sizeof *dpyinfo->x_dnd_atoms
* dpyinfo->x_dnd_atoms_size);
dpyinfo->gray
= XCreatePixmapFromBitmapData (dpyinfo->display, dpyinfo->root_window,
gray_bits, gray_width, gray_height,
1, 0, 1);
#ifdef HAVE_X_I18N
xim_initialize (dpyinfo, resource_name);
#endif
xsettings_initialize (dpyinfo);
connection = ConnectionNumber (dpyinfo->display);
/* This is only needed for distinguishing keyboard and process input. */
if (connection != 0)
add_keyboard_wait_descriptor (connection);
#ifdef F_SETOWN
fcntl (connection, F_SETOWN, getpid ());
#endif /* ! defined (F_SETOWN) */
if (interrupt_input)
init_sigio (connection);
#ifdef USE_LUCID
{
XrmValue d, fr, to;
Font font;
dpy = dpyinfo->display;
d.addr = (XPointer)&dpy;
d.size = sizeof (Display *);
fr.addr = XtDefaultFont;
fr.size = sizeof (XtDefaultFont);
to.size = sizeof (Font *);
to.addr = (XPointer)&font;
x_catch_errors (dpy);
if (!XtCallConverter (dpy, XtCvtStringToFont, &d, 1, &fr, &to, NULL))
emacs_abort ();
if (x_had_errors_p (dpy) || !XQueryFont (dpy, font))
XrmPutLineResource (&xrdb, "Emacs.dialog.*.font: 9x15");
x_uncatch_errors ();
}
#endif
/* See if we should run in synchronous mode. This is useful
for debugging X code. */
{
Lisp_Object value;
value = display_x_get_resource (dpyinfo,
build_string ("synchronous"),
build_string ("Synchronous"),
Qnil, Qnil);
if (STRINGP (value)
&& (!strcmp (SSDATA (value), "true")
|| !strcmp (SSDATA (value), "on")))
XSynchronize (dpyinfo->display, True);
}
{
Lisp_Object value;
value = display_x_get_resource (dpyinfo,
build_string ("useXIM"),
build_string ("UseXIM"),
Qnil, Qnil);
#ifdef USE_XIM
if (STRINGP (value)
&& (!strcmp (SSDATA (value), "false")
|| !strcmp (SSDATA (value), "off")))
use_xim = false;
#else
if (STRINGP (value)
&& (!strcmp (SSDATA (value), "true")
|| !strcmp (SSDATA (value), "on")))
use_xim = true;
#endif
}
#ifdef HAVE_X_SM
/* Only do this for the very first display in the Emacs session.
Ignore X session management when Emacs was first started on a
tty. */
if (terminal->id == 1)
x_session_initialize (dpyinfo);
#endif
unblock_input ();
return dpyinfo;
}
\f
/* Get rid of display DPYINFO, deleting all frames on it,
and without sending any more commands to the X server. */
static void
x_delete_display (struct x_display_info *dpyinfo)
{
struct terminal *t;
/* Close all frames and delete the generic struct terminal for this
X display. */
for (t = terminal_list; t; t = t->next_terminal)
if (t->type == output_x_window && t->display_info.x == dpyinfo)
{
#ifdef HAVE_X_SM
/* Close X session management when we close its display. */
if (t->id == 1 && x_session_have_connection ())
x_session_close ();
#endif
delete_terminal (t);
break;
}
if (next_noop_dpyinfo == dpyinfo)
next_noop_dpyinfo = dpyinfo->next;
if (x_display_list == dpyinfo)
x_display_list = dpyinfo->next;
else
{
struct x_display_info *tail;
for (tail = x_display_list; tail; tail = tail->next)
if (tail->next == dpyinfo)
tail->next = tail->next->next;
}
xfree (dpyinfo->x_id_name);
xfree (dpyinfo->x_dnd_atoms);
xfree (dpyinfo->color_cells);
xfree (dpyinfo);
}
#ifdef USE_X_TOOLKIT
/* Atimer callback function for TIMER. Called every 0.1s to process
Xt timeouts, if needed. We must avoid calling XtAppPending as
much as possible because that function does an implicit XFlush
that slows us down. */
static void
x_process_timeouts (struct atimer *timer)
{
block_input ();
x_timeout_atimer_activated_flag = 0;
if (toolkit_scroll_bar_interaction || popup_activated ())
{
while (XtAppPending (Xt_app_con) & XtIMTimer)
XtAppProcessEvent (Xt_app_con, XtIMTimer);
/* Reactivate the atimer for next time. */
x_activate_timeout_atimer ();
}
unblock_input ();
}
/* Install an asynchronous timer that processes Xt timeout events
every 0.1s as long as either `toolkit_scroll_bar_interaction' or
`popup_activated_flag' (in xmenu.c) is set. Make sure to call this
function whenever these variables are set. This is necessary
because some widget sets use timeouts internally, for example the
LessTif menu bar, or the Xaw3d scroll bar. When Xt timeouts aren't
processed, these widgets don't behave normally. */
void
x_activate_timeout_atimer (void)
{
block_input ();
if (!x_timeout_atimer_activated_flag)
{
struct timespec interval = make_timespec (0, 100 * 1000 * 1000);
start_atimer (ATIMER_RELATIVE, interval, x_process_timeouts, 0);
x_timeout_atimer_activated_flag = 1;
}
unblock_input ();
}
#endif /* USE_X_TOOLKIT */
\f
/* Set up use of X before we make the first connection. */
static struct redisplay_interface x_redisplay_interface =
{
x_frame_parm_handlers,
x_produce_glyphs,
x_write_glyphs,
x_insert_glyphs,
x_clear_end_of_line,
x_scroll_run,
x_after_update_window_line,
x_update_window_begin,
x_update_window_end,
x_flush,
x_clear_window_mouse_face,
x_get_glyph_overhangs,
x_fix_overlapping_area,
x_draw_fringe_bitmap,
0, /* define_fringe_bitmap */
0, /* destroy_fringe_bitmap */
x_compute_glyph_string_overhangs,
x_draw_glyph_string,
x_define_frame_cursor,
x_clear_frame_area,
x_draw_window_cursor,
x_draw_vertical_window_border,
x_draw_window_divider,
x_shift_glyphs_for_insert
};
/* This function is called when the last frame on a display is deleted. */
void
x_delete_terminal (struct terminal *terminal)
{
struct x_display_info *dpyinfo = terminal->display_info.x;
/* Protect against recursive calls. delete_frame in
delete_terminal calls us back when it deletes our last frame. */
if (!terminal->name)
return;
block_input ();
#ifdef HAVE_X_I18N
/* We must close our connection to the XIM server before closing the
X display. */
if (dpyinfo->xim)
xim_close_dpy (dpyinfo);
#endif
/* If called from x_connection_closed, the display may already be closed
and dpyinfo->display was set to 0 to indicate that. */
if (dpyinfo->display)
{
x_destroy_all_bitmaps (dpyinfo);
XSetCloseDownMode (dpyinfo->display, DestroyAll);
/* Whether or not XCloseDisplay destroys the associated resource
database depends on the version of libX11. To avoid both
crash and memory leak, we dissociate the database from the
display and then destroy dpyinfo->xrdb ourselves.
Unfortunately, the above strategy does not work in some
situations due to a bug in newer versions of libX11: because
XrmSetDatabase doesn't clear the flag XlibDisplayDfltRMDB if
dpy->db is NULL, XCloseDisplay destroys the associated
database whereas it has not been created by XGetDefault
(Bug#21974 in freedesktop.org Bugzilla). As a workaround, we
don't destroy the database here in order to avoid the crash
in the above situations for now, though that may cause memory
leaks in other situations. */
#if 0
#ifdef HAVE_XRMSETDATABASE
XrmSetDatabase (dpyinfo->display, NULL);
#else
dpyinfo->display->db = NULL;
#endif
/* We used to call XrmDestroyDatabase from x_delete_display, but
some older versions of libX11 crash if we call it after
closing all the displays. */
XrmDestroyDatabase (dpyinfo->xrdb);
#endif
#ifdef USE_GTK
xg_display_close (dpyinfo->display);
#else
#ifdef USE_X_TOOLKIT
XtCloseDisplay (dpyinfo->display);
#else
XCloseDisplay (dpyinfo->display);
#endif
#endif /* ! USE_GTK */
}
/* No more input on this descriptor. */
if (0 <= dpyinfo->connection)
delete_keyboard_wait_descriptor (dpyinfo->connection);
/* Mark as dead. */
dpyinfo->display = NULL;
dpyinfo->connection = -1;
x_delete_display (dpyinfo);
unblock_input ();
}
/* Create a struct terminal, initialize it with the X11 specific
functions and make DISPLAY->TERMINAL point to it. */
static struct terminal *
x_create_terminal (struct x_display_info *dpyinfo)
{
struct terminal *terminal;
terminal = create_terminal ();
terminal->type = output_x_window;
terminal->display_info.x = dpyinfo;
dpyinfo->terminal = terminal;
/* kboard is initialized in x_term_init. */
terminal->clear_frame_hook = x_clear_frame;
terminal->ins_del_lines_hook = x_ins_del_lines;
terminal->delete_glyphs_hook = x_delete_glyphs;
terminal->ring_bell_hook = XTring_bell;
terminal->toggle_invisible_pointer_hook = XTtoggle_invisible_pointer;
terminal->reset_terminal_modes_hook = NULL;
terminal->set_terminal_modes_hook = NULL;
terminal->update_begin_hook = x_update_begin;
terminal->update_end_hook = x_update_end;
terminal->set_terminal_window_hook = NULL;
terminal->read_socket_hook = XTread_socket;
terminal->frame_up_to_date_hook = XTframe_up_to_date;
terminal->mouse_position_hook = XTmouse_position;
terminal->frame_rehighlight_hook = XTframe_rehighlight;
terminal->frame_raise_lower_hook = XTframe_raise_lower;
terminal->fullscreen_hook = XTfullscreen_hook;
terminal->set_vertical_scroll_bar_hook = XTset_vertical_scroll_bar;
terminal->condemn_scroll_bars_hook = XTcondemn_scroll_bars;
terminal->redeem_scroll_bar_hook = XTredeem_scroll_bar;
terminal->judge_scroll_bars_hook = XTjudge_scroll_bars;
terminal->delete_frame_hook = x_destroy_window;
terminal->delete_terminal_hook = x_delete_terminal;
terminal->rif = &x_redisplay_interface;
return terminal;
}
void
x_initialize (void)
{
baud_rate = 19200;
x_noop_count = 0;
last_tool_bar_item = -1;
any_help_event_p = 0;
ignore_next_mouse_click_timeout = 0;
#ifdef USE_GTK
current_count = -1;
#endif
/* Try to use interrupt input; if we can't, then start polling. */
Fset_input_interrupt_mode (Qt);
#ifdef USE_X_TOOLKIT
XtToolkitInitialize ();
Xt_app_con = XtCreateApplicationContext ();
/* Register a converter from strings to pixels, which uses
Emacs' color allocation infrastructure. */
XtAppSetTypeConverter (Xt_app_con,
XtRString, XtRPixel, cvt_string_to_pixel,
cvt_string_to_pixel_args,
XtNumber (cvt_string_to_pixel_args),
XtCacheByDisplay, cvt_pixel_dtor);
XtAppSetFallbackResources (Xt_app_con, Xt_default_resources);
#endif
#ifdef USE_TOOLKIT_SCROLL_BARS
#ifndef USE_GTK
xaw3d_arrow_scroll = False;
xaw3d_pick_top = True;
#endif
#endif
/* Note that there is no real way portable across R3/R4 to get the
original error handler. */
XSetErrorHandler (x_error_handler);
XSetIOErrorHandler (x_io_error_quitter);
}
void
syms_of_xterm (void)
{
x_error_message = NULL;
DEFSYM (Qvendor_specific_keysyms, "vendor-specific-keysyms");
DEFSYM (Qlatin_1, "latin-1");
#ifdef USE_GTK
xg_default_icon_file = build_pure_c_string ("icons/hicolor/scalable/apps/emacs.svg");
staticpro (&xg_default_icon_file);
DEFSYM (Qx_gtk_map_stock, "x-gtk-map-stock");
#endif
DEFVAR_BOOL ("x-use-underline-position-properties",
x_use_underline_position_properties,
doc: /* Non-nil means make use of UNDERLINE_POSITION font properties.
A value of nil means ignore them. If you encounter fonts with bogus
UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
to 4.1, set this to nil. You can also use `underline-minimum-offset'
to override the font's UNDERLINE_POSITION for small font display
sizes. */);
x_use_underline_position_properties = 1;
DEFVAR_BOOL ("x-underline-at-descent-line",
x_underline_at_descent_line,
doc: /* Non-nil means to draw the underline at the same place as the descent line.
A value of nil means to draw the underline according to the value of the
variable `x-use-underline-position-properties', which is usually at the
baseline level. The default value is nil. */);
x_underline_at_descent_line = 0;
DEFVAR_BOOL ("x-mouse-click-focus-ignore-position",
x_mouse_click_focus_ignore_position,
doc: /* Non-nil means that a mouse click to focus a frame does not move point.
This variable is only used when the window manager requires that you
click on a frame to select it (give it focus). In that case, a value
of nil, means that the selected window and cursor position changes to
reflect the mouse click position, while a non-nil value means that the
selected window or cursor position is preserved. */);
x_mouse_click_focus_ignore_position = 0;
DEFVAR_LISP ("x-toolkit-scroll-bars", Vx_toolkit_scroll_bars,
doc: /* Which toolkit scroll bars Emacs uses, if any.
A value of nil means Emacs doesn't use toolkit scroll bars.
With the X Window system, the value is a symbol describing the
X toolkit. Possible values are: gtk, motif, xaw, or xaw3d.
With MS Windows or Nextstep, the value is t. */);
#ifdef USE_TOOLKIT_SCROLL_BARS
#ifdef USE_MOTIF
Vx_toolkit_scroll_bars = intern_c_string ("motif");
#elif defined HAVE_XAW3D
Vx_toolkit_scroll_bars = intern_c_string ("xaw3d");
#elif USE_GTK
Vx_toolkit_scroll_bars = intern_c_string ("gtk");
#else
Vx_toolkit_scroll_bars = intern_c_string ("xaw");
#endif
#else
Vx_toolkit_scroll_bars = Qnil;
#endif
DEFSYM (Qmodifier_value, "modifier-value");
DEFSYM (Qalt, "alt");
Fput (Qalt, Qmodifier_value, make_number (alt_modifier));
DEFSYM (Qhyper, "hyper");
Fput (Qhyper, Qmodifier_value, make_number (hyper_modifier));
DEFSYM (Qmeta, "meta");
Fput (Qmeta, Qmodifier_value, make_number (meta_modifier));
DEFSYM (Qsuper, "super");
Fput (Qsuper, Qmodifier_value, make_number (super_modifier));
DEFVAR_LISP ("x-alt-keysym", Vx_alt_keysym,
doc: /* Which keys Emacs uses for the alt modifier.
This should be one of the symbols `alt', `hyper', `meta', `super'.
For example, `alt' means use the Alt_L and Alt_R keysyms. The default
is nil, which is the same as `alt'. */);
Vx_alt_keysym = Qnil;
DEFVAR_LISP ("x-hyper-keysym", Vx_hyper_keysym,
doc: /* Which keys Emacs uses for the hyper modifier.
This should be one of the symbols `alt', `hyper', `meta', `super'.
For example, `hyper' means use the Hyper_L and Hyper_R keysyms. The
default is nil, which is the same as `hyper'. */);
Vx_hyper_keysym = Qnil;
DEFVAR_LISP ("x-meta-keysym", Vx_meta_keysym,
doc: /* Which keys Emacs uses for the meta modifier.
This should be one of the symbols `alt', `hyper', `meta', `super'.
For example, `meta' means use the Meta_L and Meta_R keysyms. The
default is nil, which is the same as `meta'. */);
Vx_meta_keysym = Qnil;
DEFVAR_LISP ("x-super-keysym", Vx_super_keysym,
doc: /* Which keys Emacs uses for the super modifier.
This should be one of the symbols `alt', `hyper', `meta', `super'.
For example, `super' means use the Super_L and Super_R keysyms. The
default is nil, which is the same as `super'. */);
Vx_super_keysym = Qnil;
DEFVAR_LISP ("x-keysym-table", Vx_keysym_table,
doc: /* Hash table of character codes indexed by X keysym codes. */);
Vx_keysym_table = make_hash_table (hashtest_eql, make_number (900),
make_float (DEFAULT_REHASH_SIZE),
make_float (DEFAULT_REHASH_THRESHOLD),
Qnil);
}
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