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
73
74
75
76
77
78
79
|
/*
* Copyright © 2009 Benjamin Otte
*
* 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.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "cairo-test.h"
#define WIDTH 50
#define HEIGHT 50
static cairo_pattern_t *
create_green_source (void)
{
cairo_surface_t *image;
cairo_pattern_t *pattern;
cairo_t *cr;
image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, WIDTH, HEIGHT);
cr = cairo_create (image);
cairo_surface_destroy (image);
cairo_set_source_rgb (cr, 0, 1, 0);
cairo_paint (cr);
pattern = cairo_pattern_create_for_surface (cairo_get_target (cr));
cairo_destroy (cr);
return pattern;
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_pattern_t *source;
double old_x, old_y;
cairo_surface_get_device_offset (cairo_get_group_target (cr), &old_x, &old_y);
cairo_surface_set_device_offset (cairo_get_group_target (cr), old_x+5, old_y+5);
source = create_green_source ();
cairo_set_source (cr, source);
cairo_pattern_destroy (source);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
cairo_clip (cr);
cairo_paint (cr);
cairo_surface_set_device_offset (cairo_get_group_target (cr), old_x, old_y);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (clip_device_offset,
"Test clipping on surfaces with device offsets",
"clip", /* keywords */
NULL, /* requirements */
WIDTH+10, HEIGHT+10,
NULL, draw)
|
