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/*
* Copyright 2010 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Benjamin Otte <otte@gnome.org>
*/
#include "cairo-test.h"
#define CLIP_OFFSET 15
#define CLIP_SIZE 20
#define WIDTH 50
#define HEIGHT 50
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
/* Neutral gray background */
cairo_set_source_rgb (cr, 0.51613, 0.55555, 0.51613);
cairo_paint (cr);
/* the rest uses CAIRO_OPERATOR_SOURCE so we see better when something goes wrong */
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
/* add a rectangle */
cairo_rectangle (cr, CLIP_OFFSET, CLIP_OFFSET, CLIP_SIZE, CLIP_SIZE);
/* clip to the rectangle */
cairo_clip_preserve (cr);
/* push a group. We now have a device offset. */
cairo_push_group (cr);
/* push a group again. This is where the bug used to happen. */
cairo_push_group (cr);
/* draw something */
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_fill_preserve (cr);
/* make sure the stuff we drew ends up on the output */
cairo_pop_group_to_source (cr);
cairo_fill_preserve (cr);
cairo_pop_group_to_source (cr);
cairo_fill_preserve (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (push_group_path_offset,
"Exercises a bug in Cairo 1.9 where existing paths applied the target's"
" device offset twice when cairo_push_group() was called.",
"group, path", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)
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