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/*
* Copyright © 2004 Red Hat, Inc.
*
* 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
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-test.h"
#define PAD 1
#define SIZE 5
static void
pixel_aligned_path (cairo_t *cr)
{
cairo_save (cr);
{
cairo_scale (cr, SIZE, SIZE);
cairo_move_to (cr, 1, 0);
cairo_rel_line_to (cr, 1, 0);
cairo_rel_line_to (cr, 0, 3);
cairo_rel_line_to (cr, 1, 0);
cairo_rel_line_to (cr, 0, -1);
cairo_rel_line_to (cr, -3, 0);
cairo_rel_line_to (cr, 0, -1);
cairo_rel_line_to (cr, 4, 0);
cairo_rel_line_to (cr, 0, 3);
cairo_rel_line_to (cr, -3, 0);
cairo_rel_line_to (cr, 0, -4);
cairo_close_path (cr);
}
cairo_restore (cr);
}
/* Use clipping to draw the same path twice, once with each fill rule */
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_set_source_rgb (cr, 1, 0, 0); /* red */
cairo_translate (cr, PAD, PAD);
cairo_save (cr);
{
pixel_aligned_path (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_clip (cr);
cairo_paint (cr);
}
cairo_restore (cr);
cairo_translate (cr, SIZE*4 + PAD, 0);
cairo_save (cr);
{
pixel_aligned_path (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
cairo_clip (cr);
cairo_paint (cr);
}
cairo_restore (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (clip_fill_rule_pixel_aligned,
"Tests interaction of clipping and cairo_set_fill_rule with a pixel-aligned path",
"clip", /* keywords */
NULL, /* requirements */
PAD + (SIZE*4) + PAD + (SIZE*4) + PAD,
PAD + (SIZE*4) + PAD,
NULL, draw)