From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 50660@debbugs.gnu.org
Subject: bug#50660: 28.0.50; Text artifacting when the cursor moves over text under mouse face that originally displayed a box
Date: Sat, 16 Oct 2021 21:18:02 +0800 [thread overview]
Message-ID: <877dedds6t.fsf@yahoo.com> (raw)
In-Reply-To: <83mtn9gmtw.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 16 Oct 2021 15:45:31 +0300")
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Eli Zaretskii <eliz@gnu.org> writes:
> Then maybe the simplest solution would be to do the same.
Yes, I tend to think the same way. Do the attached changes make sense
to you? Thanks.
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From 92165a34d29af55723e9a141218f4f5325330351 Mon Sep 17 00:00:00 2001
From: Po Lu <luangruo@yahoo.com>
Date: Thu, 14 Oct 2021 18:38:26 +0800
Subject: [PATCH] Fix minor issues with text display when cursor is in mouse
face
* src/xdisp.c (get_cursor_offset_for_mouse_face): Don't calculate
offsets for the glyph the cursor is on.
(fill_composite_glyph_string)
(fill_gstring_glyph_string)
(fill_glyphless_glyph_string)
(fill_glyph_string)
(fill_image_glyph_string)
(fill_xwidget_glyph_string)
(fill_stretch_glyph_string): Set s->face to mouse face whenever
appropriate.
(set_glyph_string_background_width): Update background width and
s->width to take into account differing :box properties of the mouse
face, when producing strings for the cursor.
(erase_phys_cursor): Redraw mouse face when erasing a cursor on top of
the mouse face.
* src/xterm.c (x_set_mouse_face_gc): Stop setting s->face when under
mouse face because redisplay now does that for us.
* src/w32term.c (w32_set_mouse_face_gc): Likewise.
---
src/w32term.c | 16 -----
src/xdisp.c | 162 ++++++++++++++++++++++++++++++++++++++++++++------
src/xterm.c | 16 -----
3 files changed, 144 insertions(+), 50 deletions(-)
diff --git a/src/w32term.c b/src/w32term.c
index 9cf250cd73..07a5cd3564 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -954,22 +954,6 @@ w32_set_cursor_gc (struct glyph_string *s)
static void
w32_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_OR_NULL (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 font in this face is same as S->font, use it. */
if (s->font == s->face->font)
s->gc = s->face->gc;
diff --git a/src/xdisp.c b/src/xdisp.c
index 012c2ad8bf..876a68d99c 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -28128,6 +28128,19 @@ fill_composite_glyph_string (struct glyph_string *s, struct face *base_face,
s->font = s->face->font;
}
+ if (s->hl == DRAW_MOUSE_FACE
+ || (s->hl == DRAW_CURSOR && cursor_in_mouse_face_p (s->w)))
+ {
+ int c = COMPOSITION_GLYPH (s->cmp, 0);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (s->f);
+ s->face = FACE_FROM_ID_OR_NULL (s->f, hlinfo->mouse_face_face_id);
+
+ if (!s->face)
+ s->face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
+
+ s->face = FACE_FROM_ID (s->f, FACE_FOR_CHAR (s->f, s->face, c, -1, Qnil));
+ }
+
/* All glyph strings for the same composition has the same width,
i.e. the width set for the first component of the composition. */
s->width = s->first_glyph->pixel_width;
@@ -28164,7 +28177,16 @@ fill_gstring_glyph_string (struct glyph_string *s, int face_id,
s->cmp_id = glyph->u.cmp.id;
s->cmp_from = glyph->slice.cmp.from;
s->cmp_to = glyph->slice.cmp.to + 1;
- s->face = FACE_FROM_ID (s->f, face_id);
+ if (s->hl == DRAW_MOUSE_FACE
+ || (s->hl == DRAW_CURSOR && cursor_in_mouse_face_p (s->w)))
+ {
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (s->f);
+ s->face = FACE_FROM_ID_OR_NULL (s->f, hlinfo->mouse_face_face_id);
+ if (!s->face)
+ s->face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
+ }
+ else
+ s->face = FACE_FROM_ID (s->f, face_id);
lgstring = composition_gstring_from_id (s->cmp_id);
s->font = XFONT_OBJECT (LGSTRING_FONT (lgstring));
/* The width of a composition glyph string is the sum of the
@@ -28220,6 +28242,14 @@ fill_glyphless_glyph_string (struct glyph_string *s, int face_id,
voffset = glyph->voffset;
s->face = FACE_FROM_ID (s->f, face_id);
s->font = s->face->font ? s->face->font : FRAME_FONT (s->f);
+ if (s->hl == DRAW_MOUSE_FACE
+ || (s->hl == DRAW_CURSOR && cursor_in_mouse_face_p (s->w)))
+ {
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (s->f);
+ s->face = FACE_FROM_ID_OR_NULL (s->f, hlinfo->mouse_face_face_id);
+ if (!s->face)
+ s->face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
+ }
s->nchars = 1;
s->width = glyph->pixel_width;
glyph++;
@@ -28283,6 +28313,18 @@ fill_glyph_string (struct glyph_string *s, int face_id,
s->font = s->face->font;
+ if (s->hl == DRAW_MOUSE_FACE
+ || (s->hl == DRAW_CURSOR && cursor_in_mouse_face_p (s->w)))
+ {
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (s->f);
+ s->face = FACE_FROM_ID_OR_NULL (s->f, hlinfo->mouse_face_face_id);
+ if (!s->face)
+ s->face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
+ s->face
+ = FACE_FROM_ID (s->f, FACE_FOR_CHAR (s->f, s->face,
+ s->first_glyph->u.ch, -1, Qnil));
+ }
+
/* If the specified font could not be loaded, use the frame's font,
but record the fact that we couldn't load it in
S->font_not_found_p so that we can draw rectangles for the
@@ -28312,6 +28354,14 @@ fill_image_glyph_string (struct glyph_string *s)
s->slice = s->first_glyph->slice.img;
s->face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
s->font = s->face->font;
+ if (s->hl == DRAW_MOUSE_FACE
+ || (s->hl == DRAW_CURSOR && cursor_in_mouse_face_p (s->w)))
+ {
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (s->f);
+ s->face = FACE_FROM_ID_OR_NULL (s->f, hlinfo->mouse_face_face_id);
+ if (!s->face)
+ s->face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
+ }
s->width = s->first_glyph->pixel_width;
/* Adjust base line for subscript/superscript text. */
@@ -28326,6 +28376,14 @@ fill_xwidget_glyph_string (struct glyph_string *s)
eassert (s->first_glyph->type == XWIDGET_GLYPH);
s->face = FACE_FROM_ID (s->f, s->first_glyph->face_id);
s->font = s->face->font;
+ if (s->hl == DRAW_MOUSE_FACE
+ || (s->hl == DRAW_CURSOR && cursor_in_mouse_face_p (s->w)))
+ {
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (s->f);
+ s->face = FACE_FROM_ID_OR_NULL (s->f, hlinfo->mouse_face_face_id);
+ if (!s->face)
+ s->face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
+ }
s->width = s->first_glyph->pixel_width;
s->ybase += s->first_glyph->voffset;
s->xwidget = s->first_glyph->u.xwidget;
@@ -28351,6 +28409,14 @@ fill_stretch_glyph_string (struct glyph_string *s, int start, int end)
face_id = glyph->face_id;
s->face = FACE_FROM_ID (s->f, face_id);
s->font = s->face->font;
+ if (s->hl == DRAW_MOUSE_FACE
+ || (s->hl == DRAW_CURSOR && cursor_in_mouse_face_p (s->w)))
+ {
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (s->f);
+ s->face = FACE_FROM_ID_OR_NULL (s->f, hlinfo->mouse_face_face_id);
+ if (!s->face)
+ s->face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
+ }
s->width = glyph->pixel_width;
s->nchars = 1;
voffset = glyph->voffset;
@@ -28598,7 +28664,12 @@ right_overwriting (struct glyph_string *s)
/* Set background width of glyph string S. START is the index of the
first glyph following S. LAST_X is the right-most x-position + 1
- in the drawing area. */
+ in the drawing area.
+
+ If S's hl is DRAW_CURSOR, S->f is a window system frame, and the
+ cursor in S's window is currently under mouse face, s->width will
+ also be updated to take into account differing :box properties
+ between the original face and the mouse face. */
static void
set_glyph_string_background_width (struct glyph_string *s, int start, int last_x)
@@ -28620,7 +28691,67 @@ set_glyph_string_background_width (struct glyph_string *s, int start, int last_x
if (s->extends_to_end_of_line_p)
s->background_width = last_x - s->x + 1;
else
- s->background_width = s->width;
+ {
+ s->background_width = s->width;
+#ifdef HAVE_WINDOW_SYSTEM
+ if (FRAME_WINDOW_P (s->f)
+ && s->hl == DRAW_CURSOR
+ && cursor_in_mouse_face_p (s->w))
+ {
+ /* We will have to adjust the background width of the string
+ in this situation, because the glyph's pixel_width might
+ be inconsistent with the box of the mouse face, which
+ leads to an ugly over-wide cursor. */
+
+ struct glyph *g = s->first_glyph;
+ struct face *regular_face = FACE_FROM_ID (s->f, g->face_id);
+
+ bool do_left_box_p = g->left_box_line_p;
+ bool do_right_box_p = g->right_box_line_p;
+
+ /* This is required because we test some parameters
+ of the image slice before applying the box in
+ produce_image_glyph. */
+
+ if (g->type == IMAGE_GLYPH)
+ {
+ if (!s->row->reversed_p)
+ {
+ struct image *img = IMAGE_FROM_ID (s->f, g->u.img_id);
+ do_left_box_p = g->left_box_line_p &&
+ g->slice.img.x == 0;
+ do_right_box_p = g->right_box_line_p &&
+ g->slice.img.x + g->slice.img.width == img->width;
+ }
+ else
+ {
+ struct image *img = IMAGE_FROM_ID (s->f, g->u.img_id);
+ do_left_box_p = g->left_box_line_p &&
+ g->slice.img.x + g->slice.img.width == img->width;
+ do_right_box_p = g->right_box_line_p &&
+ g->slice.img.x == 0;
+ }
+ }
+
+ /* If the glyph has a left box line, subtract it from the
+ offset. */
+ if (do_left_box_p)
+ s->background_width -= max (0, regular_face->box_vertical_line_width);
+ /* Likewise with the right box line, as there may be a
+ box there as well. */
+ if (do_right_box_p)
+ s->background_width -= max (0, regular_face->box_vertical_line_width);
+ /* Now add the line widths from the new face. */
+ if (g->left_box_line_p)
+ s->background_width += max (0, s->face->box_vertical_line_width);
+ if (g->right_box_line_p)
+ s->background_width += max (0, s->face->box_vertical_line_width);
+
+ /* s->width is probably worth adjusting here as well. */
+ s->width = s->background_width;
+ }
+#endif
+ }
}
@@ -31755,10 +31886,6 @@ erase_phys_cursor (struct window *w)
Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
int hpos = w->phys_cursor.hpos;
int vpos = w->phys_cursor.vpos;
-#ifdef HAVE_WINDOW_SYSTEM
- int mouse_delta;
- int phys_x = w->phys_cursor.x;
-#endif
bool mouse_face_here_p = false;
struct glyph_matrix *active_glyphs = w->current_matrix;
struct glyph_row *cursor_row;
@@ -31829,13 +31956,16 @@ erase_phys_cursor (struct window *w)
mouse_face_here_p = true;
#ifdef HAVE_WINDOW_SYSTEM
- /* Adjust the physical cursor's X coordinate if needed. The problem
- solved by the code below is outlined in the comment above
- 'get_cursor_offset_for_mouse_face'. */
- if (mouse_face_here_p)
+ /* Since erasing the phys cursor will probably lead to corruption of
+ the mouse face display if the glyph's pixel_width is not kept up
+ to date with the :box property of the mouse face, just redraw the
+ mouse face. */
+ if (FRAME_WINDOW_P (WINDOW_XFRAME (w)) && mouse_face_here_p)
{
- get_cursor_offset_for_mouse_face (w, cursor_row, &mouse_delta);
- w->phys_cursor.x += mouse_delta;
+ w->phys_cursor_on_p = false;
+ w->phys_cursor_type = NO_CURSOR;
+ show_mouse_face (MOUSE_HL_INFO (WINDOW_XFRAME (w)), DRAW_MOUSE_FACE);
+ return;
}
#endif
@@ -31874,10 +32004,6 @@ erase_phys_cursor (struct window *w)
draw_phys_cursor_glyph (w, cursor_row, hl);
mark_cursor_off:
-#ifdef HAVE_WINDOW_SYSTEM
- /* Restore the original cursor position. */
- w->phys_cursor.x = phys_x;
-#endif
w->phys_cursor_on_p = false;
w->phys_cursor_type = NO_CURSOR;
}
@@ -36042,7 +36168,7 @@ get_cursor_offset_for_mouse_face (struct window *w, struct glyph_row *row,
/* Calculate the offset to correct phys_cursor x if we are
drawing the cursor inside mouse-face highlighted text. */
- for (; row->reversed_p ? start >= end : start <= end;
+ for (; row->reversed_p ? start > end : start < end;
row->reversed_p ? --start : ++start)
{
struct glyph *g = start;
diff --git a/src/xterm.c b/src/xterm.c
index 2b365929a1..0435ad341c 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -1573,22 +1573,6 @@ x_set_cursor_gc (struct glyph_string *s)
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_OR_NULL (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
--
2.31.1
next prev parent reply other threads:[~2021-10-16 13:18 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87czp6ysw7.fsf.ref@yahoo.com>
2021-09-18 12:23 ` bug#50660: 28.0.50; Text artifacting when the cursor moves over text under mouse face that originally displayed a box Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-18 13:48 ` Lars Ingebrigtsen
2021-09-19 0:33 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-19 5:47 ` Eli Zaretskii
2021-09-19 13:55 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-19 15:13 ` Lars Ingebrigtsen
2021-09-19 17:01 ` Eli Zaretskii
2021-09-20 1:00 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-20 5:19 ` Eli Zaretskii
2021-09-20 5:34 ` Eli Zaretskii
2021-09-20 8:02 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-20 7:07 ` Eli Zaretskii
2021-09-20 7:34 ` Eli Zaretskii
2021-09-20 8:18 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-20 9:47 ` Eli Zaretskii
2021-09-20 10:27 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-20 10:51 ` Eli Zaretskii
2021-09-20 11:08 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-20 12:07 ` Eli Zaretskii
2021-09-20 12:36 ` Eli Zaretskii
2021-09-21 0:38 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-21 6:11 ` Eli Zaretskii
2021-09-21 7:34 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-21 8:45 ` Eli Zaretskii
2021-09-21 9:20 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-21 9:37 ` Eli Zaretskii
2021-09-21 9:45 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-21 10:17 ` Eli Zaretskii
2021-09-21 10:41 ` Eli Zaretskii
2021-09-21 12:26 ` Eli Zaretskii
2021-09-20 11:09 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-21 12:46 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-21 13:10 ` Eli Zaretskii
2021-09-21 13:36 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-21 13:47 ` Eli Zaretskii
2021-09-23 23:53 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-24 6:47 ` Eli Zaretskii
2021-09-26 6:46 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-26 7:04 ` Eli Zaretskii
2021-09-26 9:56 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-27 11:52 ` Eli Zaretskii
2021-09-29 1:35 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-02 8:43 ` Eli Zaretskii
2021-10-02 9:46 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-02 12:52 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-14 8:58 ` Eli Zaretskii
2021-10-14 10:52 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-14 11:11 ` Robert Pluim
2021-10-14 11:25 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-14 11:35 ` Eli Zaretskii
2021-10-14 11:54 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-14 12:10 ` Eli Zaretskii
2021-10-14 12:16 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-14 12:20 ` Eli Zaretskii
2021-10-14 12:27 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-14 12:44 ` Eli Zaretskii
2021-10-14 13:11 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-14 15:51 ` Eli Zaretskii
2021-10-15 1:28 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-15 13:43 ` Eli Zaretskii
2021-10-16 0:18 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-16 6:09 ` Eli Zaretskii
2021-10-16 6:16 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-16 6:28 ` Eli Zaretskii
2021-10-16 6:39 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-16 7:00 ` Eli Zaretskii
2021-10-16 7:13 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-16 7:26 ` Eli Zaretskii
2021-10-16 7:52 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-16 10:10 ` Eli Zaretskii
2021-10-16 12:12 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-16 12:25 ` Eli Zaretskii
2021-10-16 12:36 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-16 12:45 ` Eli Zaretskii
2021-10-16 13:18 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2021-10-16 13:46 ` Eli Zaretskii
2021-10-17 0:32 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-17 12:15 ` Eli Zaretskii
2021-10-17 12:39 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-20 8:02 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-20 6:33 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-19 0:50 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-19 15:10 ` Lars Ingebrigtsen
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