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/*
* Copyright (C) 2006, 2007, 2008 Apple Computer, Inc. All rights reserved.
* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
* Copyright (C) 2007-2008 Torch Mobile, Inc.
* Copyright (C) 2013 Google, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef Pattern_h
#define Pattern_h
#include "platform/PlatformExport.h"
#include "platform/graphics/Image.h"
#include "platform/transforms/AffineTransform.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/RefPtr.h"
class SkPicture;
class SkShader;
namespace blink {
class PLATFORM_EXPORT Pattern : public RefCounted<Pattern> {
public:
enum RepeatMode {
RepeatModeX = 1 << 0,
RepeatModeY = 1 << 1,
RepeatModeNone = 0,
RepeatModeXY = RepeatModeX | RepeatModeY
};
static PassRefPtr<Pattern> createBitmapPattern(PassRefPtr<Image> tileImage,
RepeatMode = RepeatModeXY);
static PassRefPtr<Pattern> createPicturePattern(PassRefPtr<const SkPicture>,
RepeatMode = RepeatModeXY);
virtual ~Pattern();
SkShader* shader();
void setPatternSpaceTransform(const AffineTransform& patternSpaceTransformation);
const AffineTransform& patternSpaceTransform() const { return m_patternSpaceTransformation; }
bool isRepeatX() { return m_repeatMode & RepeatModeX; }
bool isRepeatY() { return m_repeatMode & RepeatModeY; }
bool isRepeatXY() { return m_repeatMode == RepeatModeXY; }
protected:
virtual PassRefPtr<SkShader> createShader() = 0;
void adjustExternalMemoryAllocated(int64_t delta);
RepeatMode m_repeatMode;
AffineTransform m_patternSpaceTransformation;
Pattern(RepeatMode, int64_t externalMemoryAllocated = 0);
private:
RefPtr<SkShader> m_pattern;
int64_t m_externalMemoryAllocated;
};
} // namespace blink
#endif
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