mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
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/*
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* Copyright (c) 2010 Intel Corporation
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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: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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/* Adapted from a bug report by <cairouser@yahoo.com> */
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#include "cairo-test.h"
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static const struct xy {
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double x;
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double y;
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} gp[] = {
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{ 100, 250 },
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{ 100, 100 },
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{ 150, 230 },
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{ 239, 100 },
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{ 239, 250 },
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};
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static const double vp[3] = { 100, 144, 238.5 };
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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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int i;
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cairo_paint (cr); /* opaque background */
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for (i = 0; i < 5; ++i)
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cairo_line_to (cr, gp[i].x, gp[i].y);
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cairo_close_path (cr);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_set_line_width (cr, 1.5);
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cairo_stroke_preserve (cr);
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cairo_clip (cr);
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for (i = 1; i < 3; ++i) {
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double x1 = vp[i - 1];
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double x2 = vp[i];
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cairo_move_to (cr, x1, 0);
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cairo_line_to (cr, x1, height);
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cairo_line_to (cr, x2, height);
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cairo_line_to (cr, x2, 0);
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cairo_close_path (cr);
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if (i & 1)
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cairo_set_source_rgb (cr, 0, 1, 0);
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else
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cairo_set_source_rgb (cr, 1, 1, 0);
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cairo_fill (cr);
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}
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (clip_shape,
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"Test handling of clipping with a non-aligned shape",
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"clip", /* keywords */
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NULL, /* requirements */
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400, 300,
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NULL, draw)
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