mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/*
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* Copyright 2009 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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#define WIDTH 20
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#define HEIGHT 20
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static const char *png_filename = "romedalen.png";
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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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const cairo_test_context_t *ctx = cairo_test_get_context (cr);
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cairo_surface_t *image;
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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image = cairo_test_create_surface_from_png (ctx, png_filename);
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cairo_set_source_surface (cr, image, 0, 0);
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cairo_surface_destroy (image);
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/* simple clip */
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cairo_save (cr);
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cairo_rectangle (cr, 2, 2, 16, 16);
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cairo_clip (cr);
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cairo_paint (cr);
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cairo_restore (cr);
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cairo_translate (cr, WIDTH, 0);
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/* unaligned clip */
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cairo_save (cr);
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cairo_rectangle (cr, 2.5, 2.5, 15, 15);
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cairo_clip (cr);
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cairo_paint (cr);
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cairo_restore (cr);
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cairo_translate (cr, -WIDTH, HEIGHT);
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/* aligned-clip */
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cairo_save (cr);
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cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
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cairo_rectangle (cr, 0, 0, 20, 20);
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cairo_rectangle (cr, 3, 3, 10, 10);
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cairo_rectangle (cr, 7, 7, 10, 10);
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cairo_clip (cr);
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cairo_paint (cr);
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cairo_restore (cr);
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cairo_translate (cr, WIDTH, 0);
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/* force a clip-mask */
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cairo_save (cr);
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cairo_arc (cr, 10, 10, 10, 0, 2 * M_PI);
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cairo_new_sub_path (cr);
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cairo_arc_negative (cr, 10, 10, 5, 2 * M_PI, 0);
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cairo_new_sub_path (cr);
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cairo_arc (cr, 10, 10, 2, 0, 2 * M_PI);
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cairo_clip (cr);
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cairo_paint (cr);
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cairo_restore (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (clip_image,
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"Tests painting an image through complex clips.",
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"clip, paint", /* keywords */
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NULL, /* requirements */
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2 * WIDTH, 2 * HEIGHT,
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NULL, draw)
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