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window-actor: Add a debugging tool to write a region to a PNG

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Just a helper function that I keep rewriting all over the place.
This commit is contained in:
Jasper St. Pierre 2012-04-29 04:44:53 -04:00
parent 20acb73024
commit 1e9268045d
1 changed files with 21 additions and 1 deletions
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22
src/compositor/meta-window-actor.c
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@ -1681,7 +1681,7 @@ meta_window_actor_get_obscured_region (MetaWindowActor *self)
#if 0
/* Print out a region; useful for debugging */
static void
dump_region (cairo_region_t *region)
print_region (cairo_region_t *region)
{
int n_rects;
int i;
@ -1699,6 +1699,26 @@ dump_region (cairo_region_t *region)
}
#endif
#if 0
/* Dump a region to a PNG file; useful for debugging */
static void
see_region (cairo_region_t *region,
int width,
int height,
char *filename)
{
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height);
cairo_t *cr = cairo_create (surface);
gdk_cairo_region (cr, region);
cairo_fill (cr);
cairo_surface_write_to_png (surface, filename);
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
#endif
/**
* meta_window_actor_set_visible_region:
* @self: a #MetaWindowActor