/* * Copyright 2009 Benjamin Otte * * 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 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, 0.5, 0.5, 0.5); cairo_paint (cr); /* remove this clip operation and everything works */ cairo_rectangle (cr, 10, 10, 30, 30); cairo_clip (cr); /* remove this no-op and everything works */ cairo_stroke (cr); /* make the y coordinates integers and everything works */ cairo_move_to (cr, 20, 20.101562); cairo_line_to (cr, 30, 20.101562); /* This clip operation should fail to work. But with cairo 1.9, if all the * 3 cases above happen, the clip will not work and the paint will happen. */ cairo_save (cr); { cairo_set_source_rgba (cr, 1, 0.5, 0.5, 1); cairo_clip_preserve (cr); cairo_paint (cr); } cairo_restore (cr); return CAIRO_TEST_SUCCESS; } CAIRO_TEST (clip_stroke_no_op, "Exercises a bug found by Benjamin Otte whereby a no-op clip is nullified by a stroke", "clip, stroke", /* keywords */ NULL, /* requirements */ WIDTH, HEIGHT, NULL, draw)