| /* |
| * 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) |