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67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/*
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* Copyright 2009 Benjamin Otte
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Author: Benjamin Otte <otte@gnome.org>
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*/
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#include "cairo-test.h"
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#define WIDTH 50
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#define HEIGHT 50
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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/* Neutral gray background */
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cairo_set_source_rgb (cr, 0.5, 0.5, 0.5);
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cairo_paint (cr);
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/* remove this clip operation and everything works */
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cairo_rectangle (cr, 10, 10, 30, 30);
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cairo_clip (cr);
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/* remove this no-op and everything works */
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cairo_fill (cr);
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/* make the y coordinates integers and everything works */
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cairo_move_to (cr, 20, 20.101562);
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cairo_line_to (cr, 30, 20.101562);
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/* This clip operation should fail to work. But with cairo 1.9, if all the
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* 3 cases above happen, the clip will not work and the paint will happen.
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*/
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cairo_save (cr); {
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cairo_set_source_rgba (cr, 1, 0.5, 0.5, 1);
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cairo_clip_preserve (cr);
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cairo_paint (cr);
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} cairo_restore (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (clip_fill_no_op,
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"Exercises a bug found by Benjamin Otte whereby a no-op clip is nullified by a stroke",
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"clip, fill", /* keywords */
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NULL, /* requirements */
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WIDTH, HEIGHT,
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NULL, draw)
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