1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* Copyright © 2007 Mozilla Corporation
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Vladimir Vukicevic <vladimir@pobox.com>
*/
#include "cairo-test.h"
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_pattern_t *pat;
cairo_surface_t *surf;
cairo_new_path (cr);
cairo_rectangle (cr, 0, 0, 0, 0);
cairo_clip (cr);
cairo_push_group (cr);
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_new_path (cr);
cairo_rectangle (cr, -10, 10, 20, 20);
cairo_fill_preserve (cr);
cairo_stroke_preserve (cr);
cairo_paint (cr);
cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_show_text (cr, "ABC");
cairo_mask (cr, cairo_get_source (cr));
surf = cairo_surface_create_similar (cairo_get_group_target (cr), CAIRO_CONTENT_COLOR_ALPHA, 0, 0);
pat = cairo_pattern_create_for_surface (surf);
cairo_surface_destroy (surf);
cairo_mask (cr, pat);
cairo_pattern_destroy (pat);
cairo_pop_group_to_source (cr);
cairo_paint (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (clip_zero,
"Verifies that 0x0 surfaces or clips don't cause problems.",
"clip", /* keywords */
NULL, /* requirements */
0, 0,
NULL, draw)
|
