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3940b0e91c
After a renewed discussion, it was pointed out that the API in Cairo was not restrictive and by using doubles we would be consisted with the rest of the API. Thus prompting the name change to cairo_surface_create_for_rectangle() similar to cairo_rectangle(). And document the public API.
80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
/*
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* Copyright 2009 Intel Corporation
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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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* Intel 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. Intel 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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* INTEL CORPORATION 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 INTEL CORPORATION 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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cairo_surface_t *region[5];
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const char *text = "Cairo";
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int i;
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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cairo_set_source_rgb (cr, 0, 0, 0);
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for (i = 0; i < 5; i++) {
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cairo_t *cr_region;
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cairo_text_extents_t extents;
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char buf[2] = { text[i], '\0' };
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region[i] = cairo_surface_create_for_rectangle (cairo_get_target (cr),
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20 * i, 0, 20, 20);
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cr_region = cairo_create (region[i]);
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cairo_surface_destroy (region[i]);
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cairo_select_font_face (cr_region, "@cairo:",
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CAIRO_FONT_WEIGHT_NORMAL,
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CAIRO_FONT_SLANT_NORMAL);
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cairo_set_font_size (cr_region, 20);
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cairo_text_extents (cr_region, buf, &extents);
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cairo_move_to (cr_region,
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10 - (extents.width/2 + extents.x_bearing),
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10 - (extents.height/2 + extents.y_bearing));
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cairo_show_text (cr_region, buf);
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region[i] = cairo_surface_reference (cairo_get_target (cr_region));
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cairo_destroy (cr_region);
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}
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for (i = 0; i < 5; i++) {
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cairo_set_source_surface (cr, region[5-i-1], 20 * i, 20);
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cairo_paint_with_alpha (cr, .5);
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}
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for (i = 0; i < 5; i++)
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cairo_surface_destroy (region[i]);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (subsurface,
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"Tests clipping of both source and destination using subsurfaces",
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"subsurface", /* keywords */
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NULL, /* requirements */
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100, 40,
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NULL, draw)
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