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/*
* Copyright © 2008 Chris Wilson
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Chris Wilson not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Chris Wilson makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Chris Wilson <chris@chris-wilson.co.uk>
* Franz Schmid <Franz.Schmid@altmuehlnet.de>
*/
/* Test case for bug reported by Franz Schmid <Franz.Schmid@altmuehlnet.de>
* http://lists.cairographics.org/archives/cairo/2008-April/013912.html
*/
#include "cairo-test.h"
#define WIDTH 60
#define HEIGHT 60
static cairo_test_draw_function_t draw;
static const cairo_test_t test = {
"leaky-dashed-rectangle",
"Exercises bug in which a dashed stroke leaks in from outside the surface",
WIDTH, HEIGHT,
draw
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const double dash[2] = {4, 2};
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_paint (cr);
cairo_set_source_rgb (cr, 0., 0., 0);
cairo_translate (cr, 0.5, .5);
cairo_set_line_width (cr, 1); /* This is vital to reproduce the bug. */
/* First check simple rectangles */
cairo_set_source_rgb (cr, 0., 0., 0);
cairo_rectangle (cr, -WIDTH/4, -HEIGHT/4, WIDTH, HEIGHT);
cairo_stroke (cr);
cairo_rectangle (cr, WIDTH+WIDTH/4, -HEIGHT/4, -WIDTH, HEIGHT);
cairo_stroke (cr);
cairo_rectangle (cr, -WIDTH/4, HEIGHT+HEIGHT/4, WIDTH, -HEIGHT);
cairo_stroke (cr);
cairo_rectangle (cr, WIDTH+WIDTH/4, HEIGHT+HEIGHT/4, -WIDTH, -HEIGHT);
cairo_stroke (cr);
cairo_set_dash (cr, dash, 2, 0);
/* And now dashed. */
cairo_set_source_rgb (cr, 1., 0., 0);
cairo_rectangle (cr, -WIDTH/4, -HEIGHT/4, WIDTH, HEIGHT);
cairo_stroke (cr);
cairo_set_source_rgb (cr, 0., 1., 0);
cairo_rectangle (cr, WIDTH+WIDTH/4, -HEIGHT/4, -WIDTH, HEIGHT);
cairo_stroke (cr);
cairo_set_source_rgb (cr, 0., 0., 1);
cairo_rectangle (cr, -WIDTH/4, HEIGHT+HEIGHT/4, WIDTH, -HEIGHT);
cairo_stroke (cr);
cairo_set_source_rgb (cr, 1., 1., 0);
cairo_rectangle (cr, WIDTH+WIDTH/4, HEIGHT+HEIGHT/4, -WIDTH, -HEIGHT);
cairo_stroke (cr);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}
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