2009-11-17 Jeffrey Stedfast <fejj@novell.com>
[moon.git] / cairo / test / smask-text.c
blob49eb6060edd286107ecbe52df6c4a8af3d940ec3
1 /*
2 * Copyright © 2008 Chris Wilson
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.
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.
23 * Author: Chris Wilson <chris@chris-wilson.co.uk>
26 #include "cairo-test.h"
28 static cairo_test_draw_function_t draw;
30 static const cairo_test_t test = {
31 "smask-text",
32 "Test the support of \"soft\" masks with text",
33 120, 60,
34 draw
37 static cairo_test_status_t
38 draw (cairo_t *cr, int width, int height)
40 cairo_surface_t *mask;
41 cairo_pattern_t *pattern;
42 cairo_t *cr2;
43 cairo_text_extents_t extents;
45 cairo_set_source_rgb (cr, 0, 0, 1.0);
46 cairo_paint (cr);
48 mask = cairo_surface_create_similar (cairo_get_group_target (cr),
49 CAIRO_CONTENT_ALPHA,
50 width, height);
51 cr2 = cairo_create (mask);
52 cairo_surface_destroy (mask);
54 cairo_save (cr2); {
55 cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR);
56 cairo_paint (cr2);
57 } cairo_restore (cr2);
59 pattern = cairo_pattern_create_linear (0, 0, width, height);
60 cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.);
61 cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.);
62 cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5);
63 cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.);
64 cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.);
65 cairo_set_source (cr2, pattern);
66 cairo_pattern_destroy (pattern);
68 cairo_select_font_face (cr2,
69 "Bitstream Vera Sans",
70 CAIRO_FONT_SLANT_NORMAL,
71 CAIRO_FONT_WEIGHT_NORMAL);
72 cairo_set_font_size (cr2, 0.5 * height);
74 cairo_text_extents (cr2, "cairo", &extents);
75 cairo_move_to (cr2,
76 floor ((width - extents.width) / 2 + 0.5) - extents.x_bearing,
77 floor ((height - extents.height) / 2 - 0.5) - extents.y_bearing);
78 cairo_show_text (cr2, "cairo");
80 cairo_set_source_rgb (cr, 1.0, 0, 0);
81 cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0);
82 cairo_destroy (cr2);
84 return CAIRO_TEST_SUCCESS;
87 int
88 main (void)
90 return cairo_test (&test);