blob: 4db113c5c118573bc3b78990e24b6e0b075ac946 [file] [log] [blame]
/*
* Copyright © 2011 Krzysztof Kosiński
*
* 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: Krzysztof Kosiński <tweenk.pl@gmail.com>
*/
#include "cairo-test.h"
#define WIDTH 800
#define HEIGHT 800
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
double lw = 800;
int n = 0;
cairo_set_source_rgb (cr, 1,1,1);
cairo_paint (cr);
cairo_set_source_rgba (cr, 0, 0, 0, .4);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
do {
cairo_set_line_width(cr, lw);
cairo_arc(cr, WIDTH/2, HEIGHT/2, lw/2,
2*M_PI*(13*n + 1) / 130, 2*M_PI*(13*n + 12) / 130);
cairo_stroke(cr);
n++;
lw /= 1.1;
} while (lw > 0.5);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (bug_84115,
"Exercises a bug found in stroke generation using trapezoids",
"stroke", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, draw)