mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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3cb882d01b
In order to make it easier to change the test font family, add it as a define in the global header and always reference the macro in the tests.
123 lines
4.5 KiB
C
123 lines
4.5 KiB
C
/*
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* Copyright © 2008 Chris Wilson
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Chris Wilson not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Chris Wilson makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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#include "cairo-test.h"
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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uint32_t data[] = {
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0x80000000, 0x80000000,
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0x80000000, 0x80000000,
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};
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cairo_surface_t *mask, *mask2;
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cairo_pattern_t *pattern;
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cairo_t *cr2;
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cairo_text_extents_t extents;
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mask = cairo_surface_create_similar (cairo_get_group_target (cr),
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CAIRO_CONTENT_ALPHA,
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width, height);
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cr2 = cairo_create (mask);
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cairo_surface_destroy (mask);
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cairo_save (cr2); {
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cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR);
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cairo_paint (cr2);
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} cairo_restore (cr2);
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pattern = cairo_pattern_create_linear (0, 0, 0, height);
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cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.0);
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cairo_pattern_add_color_stop_rgba (pattern, 0.80, 0., 0., 0., 0.0);
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cairo_pattern_add_color_stop_rgba (pattern, 0.90, 1., 1., 1., 0.25);
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cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 1., 1., 1.0);
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cairo_set_source (cr2, pattern);
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cairo_pattern_destroy (pattern);
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cairo_paint (cr2);
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pattern = cairo_pattern_create_linear (0, 0, width, height);
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cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.);
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cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 1., 1., 1.);
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cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 1., 1., .5);
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cairo_pattern_add_color_stop_rgba (pattern, 0.75, 1., 1., 1., 1.);
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cairo_pattern_add_color_stop_rgba (pattern, 1.00, 0., 0., 0., 0.);
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cairo_set_source (cr2, pattern);
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cairo_pattern_destroy (pattern);
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mask2 = cairo_image_surface_create_for_data ((unsigned char *) data,
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CAIRO_FORMAT_ARGB32, 2, 2, 8);
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pattern = cairo_pattern_create_for_surface (mask2);
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cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
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cairo_mask (cr2, pattern);
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cairo_pattern_destroy (pattern);
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cairo_arc (cr2, 0.5 * width, 0.5 * height - 10, 0.2 * height, 0, 2 * M_PI);
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cairo_fill (cr2);
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cairo_arc (cr2, 0.5 * width, 0.5 * height - 10, 0.25 * height, 0, 2 * M_PI);
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cairo_stroke (cr2);
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cairo_select_font_face (cr2,
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CAIRO_TEST_FONT_FAMILY " Sans",
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CAIRO_FONT_SLANT_NORMAL,
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CAIRO_FONT_WEIGHT_NORMAL);
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cairo_set_font_size (cr2, 0.3 * height);
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cairo_text_extents (cr2, "FG", &extents);
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cairo_move_to (cr2,
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floor ((width - extents.width) / 2 + 0.5) - extents.x_bearing,
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floor (height - extents.height - 0.5) - extents.y_bearing - 5);
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cairo_show_text (cr2, "FG");
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cairo_set_source_rgb (cr, 0, 0, 1.0);
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cairo_paint (cr);
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pattern = cairo_pattern_create_radial (
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0.5 * width, 0.5 * height, 0,
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0.5 * width, 0.5 * height, 0.5 *height);
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cairo_pattern_add_color_stop_rgba (pattern, 0.00, 0., 0., 0., 0.);
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cairo_pattern_add_color_stop_rgba (pattern, 0.25, 1., 0., 0., 1.);
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cairo_pattern_add_color_stop_rgba (pattern, 0.50, 1., 0., 0., .5);
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cairo_pattern_add_color_stop_rgba (pattern, 1.00, 1., 0., 0., 1.);
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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cairo_mask_surface (cr, cairo_get_target (cr2), 0, 0);
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cairo_destroy (cr2);
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cairo_surface_finish (mask2); /* data will go out of scope */
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cairo_surface_destroy (mask2);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (smask,
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"Test the support of \"soft\" masks",
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"smask", /* keywords */
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NULL, /* requirements */
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60, 60,
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NULL, draw)
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