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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 "Color.h"
#include "PlatformString.h"
namespace WebCore {
class CanvasGradient;
class CanvasPattern;
class GraphicsContext;
class CanvasStyle : public RefCounted<CanvasStyle> {
public:
static PassRefPtr<CanvasStyle> create(RGBA32 rgba) { return adoptRef(new CanvasStyle(rgba)); }
static PassRefPtr<CanvasStyle> create(const String& color);
static PassRefPtr<CanvasStyle> create(const String& color, float alpha);
static PassRefPtr<CanvasStyle> create(float grayLevel) { return adoptRef(new CanvasStyle(grayLevel)); }
static PassRefPtr<CanvasStyle> create(float grayLevel, float alpha) { return adoptRef(new CanvasStyle(grayLevel, alpha)); }
static PassRefPtr<CanvasStyle> create(float r, float g, float b, float a) { return adoptRef(new CanvasStyle(r, g, b, a)); }
static PassRefPtr<CanvasStyle> create(float c, float m, float y, float k, float a) { return adoptRef(new CanvasStyle(c, m, y, k, a)); }
static PassRefPtr<CanvasStyle> create(PassRefPtr<CanvasGradient> gradient);
static PassRefPtr<CanvasStyle> create(PassRefPtr<CanvasPattern> pattern);
String color() const { 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 isEquivalentColor(const CanvasStyle&) const;
private:
CanvasStyle(RGBA32 rgba);
CanvasStyle(float grayLevel);
CanvasStyle(float grayLevel, float alpha);
CanvasStyle(float r, float g, float b, float a);
CanvasStyle(float c, float m, float y, float k, float a);
CanvasStyle(PassRefPtr<CanvasGradient>);
CanvasStyle(PassRefPtr<CanvasPattern>);
enum Type { RGBA, CMYKA, Gradient, ImagePattern };
Type m_type;
RGBA32 m_rgba;
RefPtr<CanvasGradient> m_gradient;
RefPtr<CanvasPattern> m_pattern;
struct CMYKAValues {
CMYKAValues() {}
CMYKAValues(float cyan, float magenta, float yellow, float black, float alpha) : c(cyan), m(magenta), y(yellow), k(black), a(alpha) {}
float c;
float m;
float y;
float k;
float a;
} m_cmyka;
};
} // namespace WebCore
#endif
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