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/* Support for embedding graphical components in a buffer.
Copyright (C) 2011-2019 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/>. */
#ifndef XWIDGET_H_INCLUDED
#define XWIDGET_H_INCLUDED
#include "lisp.h"
struct glyph_matrix;
struct glyph_string;
struct xwidget;
struct xwidget_view;
struct window;
#ifdef HAVE_XWIDGETS
# include <gtk/gtk.h>
struct xwidget
{
union vectorlike_header header;
/* Auxiliary data. */
Lisp_Object plist;
/* The widget type. */
Lisp_Object type;
/* The buffer where the xwidget lives. */
Lisp_Object buffer;
/* A title used for button labels, for instance. */
Lisp_Object title;
/* Vector of currently executing scripts with callbacks. */
Lisp_Object script_callbacks;
/* Here ends the Lisp part. script_callbacks is the marker field. */
int height;
int width;
/* For offscreen widgets, unused if not osr. */
GtkWidget *widget_osr;
GtkWidget *widgetwindow_osr;
/* Kill silently if Emacs is exited. */
bool_bf kill_without_query : 1;
} GCALIGNED_STRUCT;
struct xwidget_view
{
union vectorlike_header header;
Lisp_Object model;
Lisp_Object w;
/* Here ends the lisp part. "w" is the marker field. */
/* If touched by redisplay. */
bool redisplayed;
/* The "live" instance isn't drawn. */
bool hidden;
GtkWidget *widget;
GtkWidget *widgetwindow;
GtkWidget *emacswindow;
int x;
int y;
int clip_right;
int clip_bottom;
int clip_top;
int clip_left;
long handler_id;
} GCALIGNED_STRUCT;
#endif
/* Test for xwidget pseudovector. */
#define XWIDGETP(x) PSEUDOVECTORP (x, PVEC_XWIDGET)
#define XXWIDGET(a) (eassert (XWIDGETP (a)), \
XUNTAG (a, Lisp_Vectorlike, struct xwidget))
#define CHECK_XWIDGET(x) \
CHECK_TYPE (XWIDGETP (x), Qxwidgetp, x)
/* Test for xwidget_view pseudovector. */
#define XWIDGET_VIEW_P(x) PSEUDOVECTORP (x, PVEC_XWIDGET_VIEW)
#define XXWIDGET_VIEW(a) (eassert (XWIDGET_VIEW_P (a)), \
XUNTAG (a, Lisp_Vectorlike, struct xwidget_view))
#define CHECK_XWIDGET_VIEW(x) \
CHECK_TYPE (XWIDGET_VIEW_P (x), Qxwidget_view_p, x)
#define XG_XWIDGET "emacs_xwidget"
#define XG_XWIDGET_VIEW "emacs_xwidget_view"
#ifdef HAVE_XWIDGETS
void syms_of_xwidget (void);
bool valid_xwidget_spec_p (Lisp_Object);
void xwidget_view_delete_all_in_window (struct window *);
void x_draw_xwidget_glyph_string (struct glyph_string *);
struct xwidget *lookup_xwidget (Lisp_Object spec);
void xwidget_end_redisplay (struct window *, struct glyph_matrix *);
void kill_buffer_xwidgets (Lisp_Object);
#else
INLINE_HEADER_BEGIN
INLINE void syms_of_xwidget (void) {}
INLINE bool valid_xwidget_spec_p (Lisp_Object obj) { return false; }
INLINE void xwidget_view_delete_all_in_window (struct window *w) {}
INLINE void x_draw_xwidget_glyph_string (struct glyph_string *s) { eassume (0); }
INLINE struct xwidget *lookup_xwidget (Lisp_Object obj) { eassume (0); }
INLINE void xwidget_end_redisplay (struct window *w, struct glyph_matrix *m) {}
INLINE void kill_buffer_xwidgets (Lisp_Object buf) {}
INLINE_HEADER_END
#endif
#endif /* XWIDGET_H_INCLUDED */
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