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/*
* Copyright © 2005 Mozilla Corporation
*
* 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
* Mozilla Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Mozilla Corporation makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION 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: Vladimir Vukicevic <vladimir@pobox.com>
*/
#include "cairo-test.h"
#define UNIT_SIZE 100
#define PAD 5
#define INNER_PAD 10
#define WIDTH (UNIT_SIZE + PAD) + PAD
#define HEIGHT (UNIT_SIZE + PAD) + PAD
static cairo_test_draw_function_t draw;
static const cairo_test_t test = {
"push-group",
"Verify that cairo_push_group works.",
WIDTH, HEIGHT,
draw
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_pattern_t *gradient;
int i, j;
gradient = cairo_pattern_create_linear (UNIT_SIZE - (INNER_PAD*2), 0,
UNIT_SIZE - (INNER_PAD*2), UNIT_SIZE - (INNER_PAD*2));
cairo_pattern_add_color_stop_rgba (gradient, 0.0, 0.3, 0.3, 0.3, 1.0);
cairo_pattern_add_color_stop_rgba (gradient, 1.0, 1.0, 1.0, 1.0, 1.0);
for (j = 0; j < 1; j++) {
for (i = 0; i < 1; i++) {
double x = (i * UNIT_SIZE) + (i + 1) * PAD;
double y = (j * UNIT_SIZE) + (j + 1) * PAD;
cairo_save (cr);
cairo_translate (cr, x, y);
/* draw a gradient background */
cairo_save (cr);
cairo_translate (cr, INNER_PAD, INNER_PAD);
cairo_new_path (cr);
cairo_rectangle (cr, 0, 0,
UNIT_SIZE - (INNER_PAD*2), UNIT_SIZE - (INNER_PAD*2));
cairo_set_source (cr, gradient);
cairo_fill (cr);
cairo_restore (cr);
/* clip to the unit size */
cairo_rectangle (cr, 0, 0,
UNIT_SIZE, UNIT_SIZE);
cairo_clip (cr);
cairo_rectangle (cr, 0, 0,
UNIT_SIZE, UNIT_SIZE);
cairo_set_source_rgba (cr, 0, 0, 0, 1);
cairo_set_line_width (cr, 2);
cairo_stroke (cr);
/* start a group */
cairo_push_group (cr);
/* draw diamond */
cairo_move_to (cr, UNIT_SIZE / 2, 0);
cairo_line_to (cr, UNIT_SIZE , UNIT_SIZE / 2);
cairo_line_to (cr, UNIT_SIZE / 2, UNIT_SIZE);
cairo_line_to (cr, 0 , UNIT_SIZE / 2);
cairo_close_path (cr);
cairo_set_source_rgba (cr, 0, 0, 1, 1);
cairo_fill (cr);
/* draw circle */
cairo_arc (cr,
UNIT_SIZE / 2, UNIT_SIZE / 2,
UNIT_SIZE / 3.5,
0, M_PI * 2);
cairo_set_source_rgba (cr, 1, 0, 0, 1);
cairo_fill (cr);
cairo_pop_group_to_source (cr);
cairo_paint_with_alpha (cr, 0.5);
cairo_restore (cr);
}
}
cairo_pattern_destroy (gradient);
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}
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