A patch to gdk_image_get

[Ron Steinke <rsteinke merilon elfhame net>]

	This is a patch to gdk_image_get which allows you to
pass -1 as the width or height argument, and have the
image extend to the end of the source GdkWindow, in the
manner of, e.g., gdk_draw_pixmap. This is particularly useful
for converting a GdkPixmap of unknown size to a GdkImage.
This patch is the same as the patch gdk-rsteinke-001030-0.patch
uploaded to ftp.gtk.org.

				Ron Steinke

diff -ur gtk+-1.2.8/gdk/gdkimage.c gtk+-1.2.8.local/gdk/gdkimage.c
--- gtk+-1.2.8/gdk/gdkimage.c	Thu Sep 23 12:43:39 1999
+++ gtk+-1.2.8.local/gdk/gdkimage.c	Mon Oct 30 11:09:25 2000
@@ -338,6 +338,13 @@
   if (win_private->destroyed)
     return NULL;
 
+  /* If width or height is -1, go to the end of the window. */
+
+  if(width == -1)
+    width = win_private->width - x;
+  if(height == -1)
+    height = win_private->height - y;
+
   private = g_new (GdkImagePrivate, 1);
   image = (GdkImage*) private;