mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-18 17:30:10 +00:00
236 lines
6.6 KiB
C
236 lines
6.6 KiB
C
/* GIMP Drawing Kit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
|
|
* file for a list of people on the GTK+ Team. See the ChangeLog
|
|
* files for a list of changes. These files are distributed with
|
|
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gdkdrawable-x11.h"
|
|
|
|
#include "gdkx.h"
|
|
#include "gdkprivate-x11.h"
|
|
#include "gdkscreen-x11.h"
|
|
#include "gdkdisplay-x11.h"
|
|
|
|
#include <cairo-xlib.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
|
|
static cairo_surface_t *gdk_x11_ref_cairo_surface (GdkDrawable *drawable);
|
|
static cairo_surface_t *gdk_x11_create_cairo_surface (GdkDrawable *drawable,
|
|
int width,
|
|
int height);
|
|
|
|
static const cairo_user_data_key_t gdk_x11_cairo_key;
|
|
|
|
G_DEFINE_TYPE (GdkDrawableImplX11, _gdk_drawable_impl_x11, GDK_TYPE_DRAWABLE)
|
|
|
|
static void
|
|
_gdk_drawable_impl_x11_class_init (GdkDrawableImplX11Class *klass)
|
|
{
|
|
GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
|
|
|
|
drawable_class->ref_cairo_surface = gdk_x11_ref_cairo_surface;
|
|
drawable_class->create_cairo_surface = gdk_x11_create_cairo_surface;
|
|
}
|
|
|
|
static void
|
|
_gdk_drawable_impl_x11_init (GdkDrawableImplX11 *impl)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* _gdk_x11_drawable_finish:
|
|
* @drawable: a #GdkDrawableImplX11.
|
|
*
|
|
* Performs necessary cleanup prior to destroying a window.
|
|
**/
|
|
void
|
|
_gdk_x11_drawable_finish (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
if (impl->cairo_surface)
|
|
{
|
|
cairo_surface_finish (impl->cairo_surface);
|
|
cairo_surface_set_user_data (impl->cairo_surface, &gdk_x11_cairo_key,
|
|
NULL, NULL);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* _gdk_x11_drawable_update_size:
|
|
* @drawable: a #GdkDrawableImplX11.
|
|
*
|
|
* Updates the state of the drawable (in particular the drawable's
|
|
* cairo surface) when its size has changed.
|
|
**/
|
|
void
|
|
_gdk_x11_drawable_update_size (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
if (impl->cairo_surface)
|
|
{
|
|
cairo_xlib_surface_set_size (impl->cairo_surface,
|
|
gdk_window_get_width (impl->wrapper),
|
|
gdk_window_get_height (impl->wrapper));
|
|
}
|
|
}
|
|
|
|
/*****************************************************
|
|
* X11 specific implementations of generic functions *
|
|
*****************************************************/
|
|
|
|
static GdkDrawable *
|
|
get_impl_drawable (GdkDrawable *drawable)
|
|
{
|
|
if (GDK_IS_WINDOW (drawable))
|
|
return ((GdkWindowObject *)drawable)->impl;
|
|
else
|
|
{
|
|
g_warning (G_STRLOC " drawable is not a window");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_x11_drawable_get_xdisplay:
|
|
* @drawable: a #GdkDrawable.
|
|
*
|
|
* Returns the display of a #GdkDrawable.
|
|
*
|
|
* Return value: an Xlib <type>Display*</type>.
|
|
**/
|
|
Display *
|
|
gdk_x11_drawable_get_xdisplay (GdkDrawable *drawable)
|
|
{
|
|
if (GDK_IS_DRAWABLE_IMPL_X11 (drawable))
|
|
return GDK_SCREEN_XDISPLAY (GDK_DRAWABLE_IMPL_X11 (drawable)->screen);
|
|
else
|
|
return GDK_SCREEN_XDISPLAY (GDK_DRAWABLE_IMPL_X11 (get_impl_drawable (drawable))->screen);
|
|
}
|
|
|
|
/**
|
|
* gdk_x11_drawable_get_xid:
|
|
* @drawable: a #GdkDrawable.
|
|
*
|
|
* Returns the X resource (window) belonging to a #GdkDrawable.
|
|
*
|
|
* Return value: the ID of @drawable's X resource.
|
|
**/
|
|
XID
|
|
gdk_x11_drawable_get_xid (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawable *impl;
|
|
|
|
if (GDK_IS_WINDOW (drawable))
|
|
{
|
|
GdkWindow *window = (GdkWindow *)drawable;
|
|
|
|
/* Try to ensure the window has a native window */
|
|
if (!_gdk_window_has_impl (window))
|
|
{
|
|
gdk_window_ensure_native (window);
|
|
|
|
/* We sync here to ensure the window is created in the Xserver when
|
|
* this function returns. This is required because the returned XID
|
|
* for this window must be valid immediately, even with another
|
|
* connection to the Xserver */
|
|
gdk_display_sync (gdk_window_get_display (window));
|
|
}
|
|
|
|
if (!GDK_WINDOW_IS_X11 (window))
|
|
{
|
|
g_warning (G_STRLOC " drawable is not a native X11 window");
|
|
return None;
|
|
}
|
|
|
|
impl = ((GdkWindowObject *)drawable)->impl;
|
|
}
|
|
else
|
|
{
|
|
g_warning (G_STRLOC " drawable is not a window");
|
|
return None;
|
|
}
|
|
|
|
return ((GdkDrawableImplX11 *)impl)->xid;
|
|
}
|
|
|
|
GdkDrawable *
|
|
gdk_x11_window_get_drawable_impl (GdkWindow *window)
|
|
{
|
|
return ((GdkWindowObject *)window)->impl;
|
|
}
|
|
|
|
static void
|
|
gdk_x11_cairo_surface_destroy (void *data)
|
|
{
|
|
GdkDrawableImplX11 *impl = data;
|
|
|
|
impl->cairo_surface = NULL;
|
|
}
|
|
|
|
static cairo_surface_t *
|
|
gdk_x11_create_cairo_surface (GdkDrawable *drawable,
|
|
int width,
|
|
int height)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
GdkVisual *visual;
|
|
|
|
visual = gdk_window_get_visual (impl->wrapper);
|
|
return cairo_xlib_surface_create (GDK_SCREEN_XDISPLAY (impl->screen),
|
|
impl->xid,
|
|
GDK_VISUAL_XVISUAL (visual),
|
|
width, height);
|
|
}
|
|
|
|
static cairo_surface_t *
|
|
gdk_x11_ref_cairo_surface (GdkDrawable *drawable)
|
|
{
|
|
GdkDrawableImplX11 *impl = GDK_DRAWABLE_IMPL_X11 (drawable);
|
|
|
|
if (GDK_IS_WINDOW_IMPL_X11 (drawable) &&
|
|
GDK_WINDOW_DESTROYED (impl->wrapper))
|
|
return NULL;
|
|
|
|
if (!impl->cairo_surface)
|
|
{
|
|
impl->cairo_surface = gdk_x11_create_cairo_surface (drawable,
|
|
gdk_window_get_width (impl->wrapper),
|
|
gdk_window_get_height (impl->wrapper));
|
|
|
|
if (impl->cairo_surface)
|
|
cairo_surface_set_user_data (impl->cairo_surface, &gdk_x11_cairo_key,
|
|
drawable, gdk_x11_cairo_surface_destroy);
|
|
}
|
|
else
|
|
cairo_surface_reference (impl->cairo_surface);
|
|
|
|
return impl->cairo_surface;
|
|
}
|