GC caching, bug #125645 (based on patch by Brian Cameron)

GC caching, bug #125645 (based on patch by Brian Cameron)

Wed Feb 18 01:44:59 2004  Soeren Sandmann  <sandmann@daimi.au.dk>

	GC caching, bug #125645 (based on patch by Brian Cameron)

	* gdk/gdkscreen.h (struct _GdkScreen): Add GC cache
	* gdk/gdkscreen.c (gdk_screen_dispose): New function. Unref the
	cached GC's here.
	* gdk/gdkdraw.c (_gdk_drawable_get_scratch_gc): New function to
	get a scratch gc.
	* gdk/gdkinternals.h: Declare the function here

	* gdk/gdkdraw.c (gdk_drawable_real_draw_pixbuf): Use
	_gdk_drawable_get_scratch_gc() instead of creating a new GC.
	* gdk/x11/gdkgeometry-x11.c (gdk_window_copy_area_scroll): same
	* gdk/x11/gdkdrawable-x11.c (draw_with_images): same
	* gdk/gdkwindow.c (gdk_window_get_composite_drawable): same
	* gdk/gdkwindow.c (gdk_window_end_paint): same
	* gdk/gdkpixmap.c (gdk_pixmap_colormap_new_from_pixbuf): same
	* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_threshold_alpha): same
	* gdk/gdkpixbuf-render.c (gdk_pixbuf_render_pixmap_and_mask_for_colormap): same