diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/push-group.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/push-group.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/push-group.c b/libs/cairo-1.16.0/test/push-group.c new file mode 100644 index 0000000..8e6ce19 --- /dev/null +++ b/libs/cairo-1.16.0/test/push-group.c @@ -0,0 +1,113 @@ +/* + * 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_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; +} + +CAIRO_TEST (push_group, + "Verify that cairo_push_group works.", + "group", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) |