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/*
* Copyright © 2010 M Joonas Pihlaja
*
* 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: M Joonas Pihlaja <jpihlaja@cc.helsinki.fi>
*/
#include "cairo-test.h"
/* Test that we can simultaneously downscale and extend a surface
* pattern. Reported by Franz Schmid to the cairo mailing list as a
* regression in 1.9.6:
* https://lists.cairographics.org/archives/cairo/2010-February/019492.html
static cairo_test_status_t
draw_with_extend (cairo_t *cr, int w, int h, cairo_extend_t extend)
{
cairo_pattern_t *pattern;
cairo_set_source_rgb (cr, 1,1,1);
cairo_paint (cr);
cairo_save (cr);
/* When the destination surface is created by cairo-test-suite to
* test device-offset, it is bigger than w x h. This test expects
* the group to have a size which is exactly w x h, so it must
* clip to the this rectangle to guarantee that the group will
* have the correct size.
cairo_rectangle (cr, 0, 0, w, h);
cairo_clip (cr);
cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR); {
/* A two by two checkerboard with black, red and yellow
* cells. */
cairo_set_source_rgb (cr, 1,0,0);
cairo_rectangle (cr, w/2, 0, w-w/2, h/2);
cairo_fill (cr);
cairo_set_source_rgb (cr, 1,1,0);
cairo_rectangle (cr, 0, h/2, w/2, h-h/2);
}
pattern = cairo_pop_group (cr);
cairo_pattern_set_extend(pattern, extend);
cairo_restore (cr);
cairo_scale (cr, 0.5, 0.5);
cairo_set_source (cr, pattern);
cairo_pattern_destroy (pattern);
return CAIRO_TEST_SUCCESS;
draw_repeat (cairo_t *cr, int w, int h)
return draw_with_extend (cr, w, h, CAIRO_EXTEND_REPEAT);
draw_none (cairo_t *cr, int w, int h)
return draw_with_extend (cr, w, h, CAIRO_EXTEND_NONE);
draw_reflect (cairo_t *cr, int w, int h)
return draw_with_extend (cr, w, h, CAIRO_EXTEND_REFLECT);
draw_pad (cairo_t *cr, int w, int h)
return draw_with_extend (cr, w, h, CAIRO_EXTEND_PAD);
CAIRO_TEST (surface_pattern_scale_down_extend_repeat,
"Test interaction of downscaling a surface pattern and extend-repeat",
"pattern, transform, extend", /* keywords */
NULL, /* requirements */
100, 100,
NULL, draw_repeat)
CAIRO_TEST (surface_pattern_scale_down_extend_none,
"Test interaction of downscaling a surface pattern and extend-none",
NULL, draw_none)
CAIRO_TEST (surface_pattern_scale_down_extend_reflect,
"Test interaction of downscaling a surface pattern and extend-reflect",
NULL, draw_reflect)
CAIRO_TEST (surface_pattern_scale_down_extend_pad,
"Test interaction of downscaling a surface pattern and extend-pad",
NULL, draw_pad)