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Allow dest to be NULL. (#464528, Xan Lopez)

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2007-09-06  Matthias Clasen  <mclasen@redhat.com>

        * gdk/gdkrectangle.c (gdk_rectangle_intersect): Allow
        dest to be NULL.  (#464528, Xan Lopez)



svn path=/trunk/; revision=18742
This commit is contained in:
Matthias Clasen 2007-09-07 03:53:23 +00:00 committed by Matthias Clasen
parent 8e2de76673
commit 835c0a1510
2 changed files with 25 additions and 11 deletions
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12
ChangeLog
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@ -1,4 +1,14 @@
2007-09-06 Matthias Clasen <mclasen@redhat.com>
2007-09-06 Matthias Clasen <mclasen@redhat.com>
* gdk/gdkrectangle.c (gdk_rectangle_intersect): Allow
dest to be NULL. (#464528, Xan Lopez)
2007-09-06 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkmisc.c (gtk_misc_set_alignment, gtk_misc_set_padding):
Actually emit change notification here. (#474282, Thomas Rydzynski)
2007-09-06 Matthias Clasen <mclasen@redhat.com>
* gtk/gtkfilechooserdefault.c (shortcuts_drop_uris): Initialize
error to NULL before calling g_set_error(). Should fix #473954,

24
gdk/gdkrectangle.c
View File

@ -62,12 +62,14 @@ gdk_rectangle_union (GdkRectangle *src1,
* gdk_rectangle_intersect:
* @src1: a #GdkRectangle
* @src2: a #GdkRectangle
* @dest: return location for the intersection of @src1 and @src2
* @dest: return location for the intersection of @src1 and @src2, or %NULL
*
* Calculates the intersection of two rectangles. It is allowed for
* @dest to be the same as either @src1 or @src2. If the rectangles
* doesn't intersect, @dest's width and height is set to 0 and its x
* and y values are undefined.
* @dest to be the same as either @src1 or @src2. If the rectangles
* do not intersect, @dest's width and height is set to 0 and its x
* and y values are undefined. If you are only interested in whether
* the rectangles intersect, but not in the intersecting area itself,
* pass %NULL for @dest.
*
* Returns: %TRUE if the rectangles intersect.
*/
@ -82,7 +84,6 @@ gdk_rectangle_intersect (GdkRectangle *src1,
g_return_val_if_fail (src1 != NULL, FALSE);
g_return_val_if_fail (src2 != NULL, FALSE);
g_return_val_if_fail (dest != NULL, FALSE);
return_val = FALSE;
@ -93,13 +94,16 @@ gdk_rectangle_intersect (GdkRectangle *src1,
if (dest_w > 0 && dest_h > 0)
{
dest->x = dest_x;
dest->y = dest_y;
dest->width = dest_w;
dest->height = dest_h;
if (dest)
{
dest->x = dest_x;
dest->y = dest_y;
dest->width = dest_w;
dest->height = dest_h;
}
return_val = TRUE;
}
else
else if (dest)
{
dest->width = 0;
dest->height = 0;