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Clip the rectangle to be rendered to the drawable, since

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2000-11-01  Havoc Pennington  <hp@redhat.com>

	* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
	Clip the rectangle to be rendered to the drawable, since
	get_from_drawable() requires a region within the drawable
This commit is contained in:
Havoc Pennington 2000-11-01 16:34:23 +00:00 committed by Havoc Pennington
parent 1576774276
commit fcaa719b7d
8 changed files with 73 additions and 1 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
2000-11-01 Havoc Pennington <hp@redhat.com>
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
Clip the rectangle to be rendered to the drawable, since
get_from_drawable() requires a region within the drawable
2000-11-01 Havoc Pennington <hp@redhat.com>
* gtk/gtkimage.c (gtk_image_expose): Um, don't randomly subtract 4

6
ChangeLog.pre-2-0
View File

@ -1,3 +1,9 @@
2000-11-01 Havoc Pennington <hp@redhat.com>
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
Clip the rectangle to be rendered to the drawable, since
get_from_drawable() requires a region within the drawable
2000-11-01 Havoc Pennington <hp@redhat.com>
* gtk/gtkimage.c (gtk_image_expose): Um, don't randomly subtract 4

6
ChangeLog.pre-2-10
View File

@ -1,3 +1,9 @@
2000-11-01 Havoc Pennington <hp@redhat.com>
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
Clip the rectangle to be rendered to the drawable, since
get_from_drawable() requires a region within the drawable
2000-11-01 Havoc Pennington <hp@redhat.com>
* gtk/gtkimage.c (gtk_image_expose): Um, don't randomly subtract 4

6
ChangeLog.pre-2-2
View File

@ -1,3 +1,9 @@
2000-11-01 Havoc Pennington <hp@redhat.com>
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
Clip the rectangle to be rendered to the drawable, since
get_from_drawable() requires a region within the drawable
2000-11-01 Havoc Pennington <hp@redhat.com>
* gtk/gtkimage.c (gtk_image_expose): Um, don't randomly subtract 4

6
ChangeLog.pre-2-4
View File

@ -1,3 +1,9 @@
2000-11-01 Havoc Pennington <hp@redhat.com>
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
Clip the rectangle to be rendered to the drawable, since
get_from_drawable() requires a region within the drawable
2000-11-01 Havoc Pennington <hp@redhat.com>
* gtk/gtkimage.c (gtk_image_expose): Um, don't randomly subtract 4

6
ChangeLog.pre-2-6
View File

@ -1,3 +1,9 @@
2000-11-01 Havoc Pennington <hp@redhat.com>
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
Clip the rectangle to be rendered to the drawable, since
get_from_drawable() requires a region within the drawable
2000-11-01 Havoc Pennington <hp@redhat.com>
* gtk/gtkimage.c (gtk_image_expose): Um, don't randomly subtract 4

6
ChangeLog.pre-2-8
View File

@ -1,3 +1,9 @@
2000-11-01 Havoc Pennington <hp@redhat.com>
* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable_alpha):
Clip the rectangle to be rendered to the drawable, since
get_from_drawable() requires a region within the drawable
2000-11-01 Havoc Pennington <hp@redhat.com>
* gtk/gtkimage.c (gtk_image_expose): Um, don't randomly subtract 4

32
gdk/gdkpixbuf-render.c
View File

@ -266,6 +266,8 @@ gdk_pixbuf_render_to_drawable_alpha (GdkPixbuf *pixbuf,
GdkBitmap *bitmap = NULL;
GdkGC *gc;
GdkPixbuf *composited = NULL;
gint dwidth, dheight;
g_return_if_fail (pixbuf != NULL);
g_return_if_fail (pixbuf->colorspace == GDK_COLORSPACE_RGB);
@ -277,9 +279,37 @@ gdk_pixbuf_render_to_drawable_alpha (GdkPixbuf *pixbuf,
g_return_if_fail (src_x >= 0 && src_x + width <= pixbuf->width);
g_return_if_fail (src_y >= 0 && src_y + height <= pixbuf->height);
if (width == 0 || height == 0)
/* Clip to the drawable; this is required for get_from_drawable() so
* can't be done implicitly
*/
if (dest_x < 0)
{
src_x -= dest_x;
width += dest_x;
dest_x = 0;
}
if (dest_y < 0)
{
src_y -= dest_y;
height += dest_y;
dest_y = 0;
}
gdk_drawable_get_size (drawable, &dwidth, &dheight);
if ((dest_x + width) > dwidth)
width = dwidth - dest_x;
if ((dest_y + height) > dheight)
height = dheight - dest_y;
if (width <= 0 || height <= 0)
return;
/* Actually draw */
gc = gdk_gc_new (drawable);
if (pixbuf->has_alpha)