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/*
* Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* 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 CanvasStyle_h
#define CanvasStyle_h
#include "platform/graphics/Color.h"
#include "platform/heap/Handle.h"
#include "wtf/Assertions.h"
#include "wtf/RefCounted.h"
#include "wtf/text/WTFString.h"
namespace blink {
class CanvasGradient;
class CanvasPattern;
class GraphicsContext;
class HTMLCanvasElement;
class CanvasStyle final : public RefCountedWillBeGarbageCollected<CanvasStyle> {
public:
static PassRefPtrWillBeRawPtr<CanvasStyle> createFromRGBA(RGBA32 rgba) { return adoptRefWillBeNoop(new CanvasStyle(rgba)); }
static PassRefPtrWillBeRawPtr<CanvasStyle> createFromGradient(PassRefPtrWillBeRawPtr<CanvasGradient>);
static PassRefPtrWillBeRawPtr<CanvasStyle> createFromPattern(PassRefPtrWillBeRawPtr<CanvasPattern>);
String color() const { ASSERT(m_type == ColorRGBA); return Color(m_rgba).serialized(); }
CanvasGradient* canvasGradient() const { return m_gradient.get(); }
CanvasPattern* canvasPattern() const { return m_pattern.get(); }
void applyFillColor(GraphicsContext*);
void applyStrokeColor(GraphicsContext*);
bool isEquivalentRGBA(RGBA32 rgba) const { return m_type == ColorRGBA && m_rgba == rgba; }
void trace(Visitor*);
private:
enum Type { ColorRGBA, Gradient, ImagePattern };
CanvasStyle(RGBA32 rgba);
CanvasStyle(PassRefPtrWillBeRawPtr<CanvasGradient>);
CanvasStyle(PassRefPtrWillBeRawPtr<CanvasPattern>);
Type m_type;
RGBA32 m_rgba;
RefPtrWillBeMember<CanvasGradient> m_gradient;
RefPtrWillBeMember<CanvasPattern> m_pattern;
};
bool parseColorOrCurrentColor(RGBA32& parsedColor, const String& colorString, HTMLCanvasElement*);
} // namespace blink
#endif
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