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
= {
32 "Test the support of \"soft\" masks with text",
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
;
43 cairo_text_extents_t extents
;
45 cairo_set_source_rgb (cr
, 0, 0, 1.0);
48 mask
= cairo_surface_create_similar (cairo_get_group_target (cr
),
51 cr2
= cairo_create (mask
);
52 cairo_surface_destroy (mask
);
55 cairo_set_operator (cr2
, CAIRO_OPERATOR_CLEAR
);
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
);
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);
84 return CAIRO_TEST_SUCCESS
;
90 return cairo_test (&test
);