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| | /* Support for embedding GTK (4) widgets in a frame
Copyright (C) 2011-2020 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 <https://www.gnu.org/licenses/>. */
#include "config.h"
#include "lisp.h"
#include <gtk/gtk.h>
struct embedded_widget
{
union vectorlike_header header;
/* The frame this widget is attatched to */
Lisp_Object frame;
/* A symbol representing the type of this widget */
Lisp_Object type;
/* Auxiliary data */
Lisp_Object data_alist;
/* Frame-relative x */
Lisp_Object fx;
/* Frame-relative y */
Lisp_Object fy;
/* Width of this widget */
Lisp_Object width;
/* Height of this widget */
Lisp_Object height;
/* A list of functions that will be called on any event. */
Lisp_Object callbacks;
/* Here ends the Lisp section of this lisp_vectorlike. */
GtkWidget *actual_widget;
/* The motion event controller associated with this embedded widget. */
GtkEventController *controller;
/* Another motion event controller associated with this embedded widget */
GtkEventController *controller_2;
} GCALIGNED_STRUCT;
#define GTKWIDGETP(x) PSEUDOVECTORP (x, PVEC_EMBEDDED_WIDGET)
#define XGTKWIDGET(x) (eassert (GTKWIDGETP (x)), \
XUNTAG (x, Lisp_Vectorlike, struct embedded_widget))
#define CHECK_GTKWIDGET(x) \
CHECK_TYPE (GTKWIDGETP (x), Qgtkwidgetp, x)
enum { EMBEDDED_WIDGET_LISP_SIZE = PSEUDOVECSIZE (struct embedded_widget,
callbacks) };
enum { EMBEDDED_WIDGET_REST_SIZE = VECSIZE (struct embedded_widget)
- EMBEDDED_WIDGET_LISP_SIZE };
INLINE void
EMBEDDED_WIDGET_PVEC_INIT (struct embedded_widget *b)
{
XSETPVECTYPESIZE (b,
PVEC_EMBEDDED_WIDGET,
EMBEDDED_WIDGET_LISP_SIZE,
EMBEDDED_WIDGET_REST_SIZE);
}
extern void syms_of_pgtkembed (void);
extern Lisp_Object
create_embedded_widget (Lisp_Object type, Lisp_Object buffer);
|