1/*
2 * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "Pattern.h"
28
29#include "AffineTransform.h"
30#include "GraphicsContext.h"
31#include <cairo.h>
32
33namespace WebCore {
34
35cairo_pattern_t* Pattern::createPlatformPattern(const AffineTransform&) const
36{
37    RefPtr<cairo_surface_t> surface = tileImage()->nativeImageForCurrentFrame();
38    if (!surface)
39        return 0;
40
41    cairo_pattern_t* pattern = cairo_pattern_create_for_surface(surface.get());
42
43    // cairo merges patter space and user space itself
44    cairo_matrix_t matrix = m_patternSpaceTransformation;
45    cairo_matrix_invert(&matrix);
46    cairo_pattern_set_matrix(pattern, &matrix);
47
48    if (m_repeatX || m_repeatY)
49        cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
50    return pattern;
51}
52
53}
54