callisto-debian/gtk3
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

The whole GDK_IS_WINDOW() branch of this was a bit screwed up, because it

Browse Source 
2001-08-06  Havoc Pennington  <hp@pobox.com>

 	* gdk/x11/gdkimage-x11.c (_gdk_x11_get_image): The whole
 	GDK_IS_WINDOW() branch of this was a bit screwed up, because
 	it was expecting a GdkWindow, not a GdkWindowImplX11.

 	Also, we were getting the window rect in screen coords
 	and the screen rect in window coords then intersecting
 	them; instead, get window rect in window coords.

 	Finally, there were codepaths that resulted in a stuck server grab
 	(when the window was fully onscreen, or on gdk_image_new()
 	failure); make the server ungrab thing a bit more
 	robust/consistent.
This commit is contained in:
Havoc Pennington
2001-08-06 16:54:17 +00:00
committed by Havoc Pennington
parent adca251bab
commit a4be7d83c1
8 changed files with 150 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
gdk/x11/gdkimage-x11.c
View File

@ -390,25 +390,26 @@ _gdk_x11_get_image (GdkDrawable *drawable,
visual = gdk_drawable_get_visual (drawable);
g_assert (visual || !GDK_IS_WINDOW (drawable));
g_assert (visual || !GDK_IS_WINDOW_IMPL_X11 (drawable));
impl = GDK_DRAWABLE_IMPL_X11 (drawable);
have_grab = FALSE;
if (GDK_IS_WINDOW (drawable))
if (GDK_IS_WINDOW_IMPL_X11 (drawable))
{
GdkRectangle screen_rect;
Window child;
g_assert (visual);
have_grab = TRUE;
gdk_x11_grab_server ();
XTranslateCoordinates (GDK_DRAWABLE_XDISPLAY (drawable),
/* Translate screen area into window coordinates */
XTranslateCoordinates (gdk_display,
gdk_root_window,
GDK_DRAWABLE_XID (drawable),
impl->xid,
0, 0,
&screen_rect.x, &screen_rect.y,
&child);
@ -417,19 +418,25 @@ _gdk_x11_get_image (GdkDrawable *drawable,
screen_rect.height = gdk_screen_height ();
gdk_error_trap_push ();
window_rect.x = 0;
window_rect.y = 0;
gdk_window_get_geometry (GDK_WINDOW (drawable),
&window_rect.x,
&window_rect.y,
gdk_window_get_geometry (GDK_WINDOW (impl->wrapper),
NULL, NULL,
&window_rect.width,
&window_rect.height,
NULL);
/* compute intersection of screen and window, in window
* coordinates
*/
if (gdk_error_trap_pop () ||
!gdk_rectangle_intersect (&window_rect, &screen_rect,
&window_rect))
{
gdk_x11_ungrab_server ();
if (have_grab)
gdk_x11_ungrab_server ();
return image = gdk_image_new (GDK_IMAGE_FASTEST,
visual,
width, height);
@ -450,11 +457,12 @@ _gdk_x11_get_image (GdkDrawable *drawable,
req.height = height;
/* window_rect specifies the part of drawable which we can get from
the server in window coordinates.
For pixmaps this is all of the pixmap, for windows it is just
the onscreen part. */
* the server in window coordinates.
* For pixmaps this is all of the pixmap, for windows it is just
* the onscreen part.
*/
if (!gdk_rectangle_intersect (&req, &window_rect, &req) && visual)
{
{
if (have_grab)
gdk_x11_ungrab_server ();
return image = gdk_image_new (GDK_IMAGE_FASTEST,
@ -471,7 +479,11 @@ _gdk_x11_get_image (GdkDrawable *drawable,
visual,
width, height);
if (image == NULL)
return NULL;
{
if (have_grab)
gdk_x11_ungrab_server ();
return NULL;
}
private = PRIVATE_DATA (image);
@ -485,7 +497,10 @@ _gdk_x11_get_image (GdkDrawable *drawable,
req.x - x, req.y - y);
if (have_grab)
gdk_x11_ungrab_server ();
{
gdk_x11_ungrab_server ();
have_grab = FALSE;
}
if (gdk_error_trap_pop () || ximage == NULL)
{
@ -497,18 +512,23 @@ _gdk_x11_get_image (GdkDrawable *drawable,
}
else
{
/* Here we ignore the req.width, req.height -
* XGetImage() will do the right thing without
* them.
*/
ximage = XGetImage (impl->xdisplay,
impl->xid,
x, y, width, height,
AllPlanes, ZPixmap);
if (!ximage)
if (have_grab)
{
if (have_grab)
gdk_x11_ungrab_server ();
return NULL;
}
gdk_x11_ungrab_server ();
have_grab = FALSE;
}
if (!ximage)
return NULL;
image = g_object_new (gdk_image_get_type (), NULL);
@ -530,6 +550,8 @@ _gdk_x11_get_image (GdkDrawable *drawable,
image->byte_order = private->ximage->byte_order;
}
g_assert (!have_grab);
return image;
}