1 /*
2  * Copyright © 2009 Chris Wilson
3  *
4  * Permission to use, copy, modify, distribute, and sell this software
5  * and its documentation for any purpose is hereby granted without
6  * fee, provided that the above copyright notice appear in all copies
7  * and that both that copyright notice and this permission notice
8  * appear in supporting documentation, and that the name of
9  * Chris Wilson not be used in advertising or publicity pertaining to
10  * distribution of the software without specific, written prior
11  * permission. Chris Wilson makes no representations about the
12  * suitability of this software for any purpose.  It is provided "as
13  * is" without express or implied warranty.
14  *
15  * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17  * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
18  * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
19  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
21  * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22  *
23  * Author: Chris Wilson <chris@chris-wilson.co.uk>
24  */
25 
26 #include "cairo-test.h"
27 
28 static cairo_test_status_t
draw(cairo_t * cr,int width,int height)29 draw (cairo_t *cr, int width, int height)
30 {
31     cairo_text_extents_t extents;
32 
33     cairo_set_source_rgb (cr, 0, 0, 1);
34     cairo_paint (cr);
35 
36     cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
37 
38     cairo_translate (cr, 2, 2);
39     cairo_save (cr);
40     cairo_rectangle (cr, 0, 0, 20, 20);
41     cairo_clip (cr);
42     cairo_rectangle (cr, 5, 5, 10, 10);
43     cairo_fill (cr);
44     cairo_restore (cr);
45 
46     cairo_translate (cr, 20, 0);
47     cairo_save (cr);
48     cairo_rectangle (cr, 0, 0, 20, 20);
49     cairo_clip (cr);
50     cairo_arc (cr, 10, 10, 8, 0, 2*M_PI);
51     cairo_fill (cr);
52     cairo_restore (cr);
53 
54     cairo_translate (cr, 0, 20);
55     cairo_save (cr);
56     cairo_rectangle (cr, 0, 0, 20, 20);
57     cairo_clip (cr);
58     cairo_text_extents (cr, "Cairo", &extents);
59     cairo_move_to (cr,
60 	           10 - (extents.width/2. + extents.x_bearing),
61 	           10 - (extents.height/2. + extents.y_bearing));
62     cairo_text_path (cr, "Cairo");
63     cairo_fill (cr);
64     cairo_restore (cr);
65 
66     cairo_translate (cr, -20, 0);
67     cairo_save (cr);
68     cairo_rectangle (cr, 0, 0, 20, 20);
69     cairo_clip (cr);
70     cairo_move_to (cr, 10, 2);
71     cairo_line_to (cr, 18, 18);
72     cairo_line_to (cr, 2, 18);
73     cairo_close_path (cr);
74     cairo_fill (cr);
75     cairo_restore (cr);
76 
77     return CAIRO_TEST_SUCCESS;
78 }
79 
80 CAIRO_TEST (clear,
81 	    "Test masked clears",
82 	    "paint, clear", /* keywords */
83 	    NULL, /* requirements */
84 	    44, 44,
85 	    NULL, draw)
86 
87