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93c9d4cefb
A second relatively simple closed concave shape, all the better for debugging with. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
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* Copyright © 2011 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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#include "cairo-test.h"
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#define LINE_WIDTH 10.
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#define SIZE (8 * LINE_WIDTH)
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#define PAD (1 * LINE_WIDTH)
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static void
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make_path (cairo_t *cr)
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{
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cairo_move_to (cr, 0, 0);
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cairo_rel_curve_to (cr,
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SIZE, 0,
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0, SIZE,
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SIZE, SIZE);
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cairo_rel_line_to (cr, -SIZE, 0);
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cairo_rel_curve_to (cr,
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SIZE, 0,
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0, -SIZE,
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SIZE, -SIZE);
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cairo_close_path (cr);
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}
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static void
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draw_joins (cairo_t *cr)
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{
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cairo_save (cr);
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cairo_translate (cr, PAD, PAD);
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make_path (cr);
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cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
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cairo_stroke (cr);
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cairo_translate (cr, SIZE + PAD, 0.);
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make_path (cr);
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cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
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cairo_stroke (cr);
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cairo_translate (cr, SIZE + PAD, 0.);
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make_path (cr);
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cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
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cairo_stroke (cr);
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cairo_translate (cr, SIZE + PAD, 0.);
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cairo_restore (cr);
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}
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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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cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
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cairo_paint (cr);
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cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
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cairo_set_line_width (cr, LINE_WIDTH);
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draw_joins (cr);
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/* and reflect to generate the opposite vertex ordering */
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cairo_translate (cr, 0, height);
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cairo_scale (cr, 1, -1);
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draw_joins (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (joins_loop,
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"A loopy concave shape",
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"stroke", /* keywords */
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NULL, /* requirements */
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3*(SIZE+PAD)+PAD, 2*(SIZE+PAD)+2*PAD,
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NULL, draw)
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