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524809759b
Contributed by Taekyun Kim to exercise a major bug he found in the treatment of complex clips. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
/*
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* Copyright 2011 SCore 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: Taekyun Kim <podain77@gmail.com>
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*/
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#include "cairo-test.h"
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static void
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rounded_rectangle(cairo_t *cr,
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double x, double y,
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double width, double height,
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double radius)
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{
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cairo_move_to (cr, x, y + radius);
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cairo_line_to (cr, x, y + height - radius);
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cairo_curve_to (cr, x, y + height - radius/2.0,
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x + radius/2.0, y + height,
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x + radius, y + height);
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cairo_line_to (cr, x + width - radius, y + height);
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cairo_curve_to (cr, x + width - radius/2.0, y + height,
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x + width, y + height - radius/2.0,
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x + width, y + height - radius);
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cairo_line_to (cr, x + width, y + radius);
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cairo_curve_to (cr, x + width, y + radius/2.0,
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x + width - radius/2.0, y,
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x + width - radius, y);
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cairo_line_to (cr, x + radius, y);
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cairo_curve_to (cr, x + radius/2.0, y, x, y + radius/2.0, x, y + radius);
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cairo_close_path(cr);
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}
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static void
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background (cairo_t *cr)
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{
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0);
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cairo_paint(cr);
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}
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static void
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foreground (cairo_t *cr)
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{
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cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 1.0);
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
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cairo_rectangle(cr, 20, 20, 60, 60);
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cairo_fill(cr);
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}
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static cairo_test_status_t
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clip_eo_mono (cairo_t *cr, int width, int height)
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{
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background (cr);
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cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
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cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
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rounded_rectangle(cr, 0, 0, 40, 100, 10);
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rounded_rectangle(cr, 60, 0, 40, 100, 10);
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cairo_clip(cr);
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foreground (cr);
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return CAIRO_TEST_SUCCESS;
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}
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static cairo_test_status_t
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clip_eo_aa (cairo_t *cr, int width, int height)
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{
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background (cr);
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cairo_set_antialias(cr, CAIRO_ANTIALIAS_DEFAULT);
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cairo_set_fill_rule(cr, CAIRO_FILL_RULE_EVEN_ODD);
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rounded_rectangle(cr, 0, 0, 40, 100, 10);
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rounded_rectangle(cr, 60, 0, 40, 100, 10);
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cairo_clip(cr);
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foreground (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (clip_complex_shape_eo_mono,
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"Test clipping against a complex shape",
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"clip", /* keywords */
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NULL, /* requirements */
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100, 100,
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NULL, clip_eo_mono)
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CAIRO_TEST (clip_complex_shape_eo_aa,
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"Test clipping against a complex shape",
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"clip", /* keywords */
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NULL, /* requirements */
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100, 100,
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NULL, clip_eo_aa)
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