/* * 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 * * See also: http://bugs.freedesktop.org/show_bug.cgi?id=17177 */ #include "cairo-test.h" #define WIDTH 60 #define HEIGHT 60 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; } CAIRO_TEST (leaky_dashed_rectangle, "Exercises bug in which a dashed stroke leaks in from outside the surface", "dash, stroke", /* keywords */ NULL, /* requirements */ WIDTH, HEIGHT, NULL, draw)