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-rw-r--r--WebCore/platform/graphics/Gradient.h165
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diff --git a/WebCore/platform/graphics/Gradient.h b/WebCore/platform/graphics/Gradient.h
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--- a/WebCore/platform/graphics/Gradient.h
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-/*
- * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
- * Copyright (C) 2007 Alp Toker <alp@atoker.com>
- * Copyright (C) 2008 Torch Mobile, Inc.
- *
- * 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 Gradient_h
-#define Gradient_h
-
-#include "AffineTransform.h"
-#include "FloatPoint.h"
-#include "Generator.h"
-#include "GraphicsTypes.h"
-#include <wtf/PassRefPtr.h>
-#include <wtf/Vector.h>
-
-#if PLATFORM(CG)
-
-#define USE_CG_SHADING defined(BUILDING_ON_TIGER) || defined(BUILDING_ON_LEOPARD)
-
-#if USE_CG_SHADING
-typedef struct CGShading* CGShadingRef;
-typedef CGShadingRef PlatformGradient;
-#else
-typedef struct CGGradient* CGGradientRef;
-typedef CGGradientRef PlatformGradient;
-#endif
-
-#elif PLATFORM(QT)
-QT_BEGIN_NAMESPACE
-class QGradient;
-QT_END_NAMESPACE
-typedef QGradient* PlatformGradient;
-#elif PLATFORM(CAIRO)
-typedef struct _cairo_pattern cairo_pattern_t;
-typedef cairo_pattern_t* PlatformGradient;
-#elif PLATFORM(SKIA)
-#if PLATFORM(ANDROID)
-#include "SkShader.h"
-typedef class PlatformGradientRec* PlatformGradient;
-#else
-class SkShader;
-typedef class SkShader* PlatformGradient;
-typedef class SkShader* PlatformPattern;
-#endif
-#elif PLATFORM(HAIKU)
-class BGradient;
-typedef BGradient* PlatformGradient;
-#else
-typedef void* PlatformGradient;
-#endif
-
-namespace WebCore {
-
- class Color;
-
- class Gradient : public Generator {
- public:
- static PassRefPtr<Gradient> create(const FloatPoint& p0, const FloatPoint& p1)
- {
- return adoptRef(new Gradient(p0, p1));
- }
- static PassRefPtr<Gradient> create(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1)
- {
- return adoptRef(new Gradient(p0, r0, p1, r1));
- }
- virtual ~Gradient();
-
- struct ColorStop;
- void addColorStop(const ColorStop&);
- void addColorStop(float, const Color&);
-
- void getColor(float value, float* r, float* g, float* b, float* a) const;
- bool hasAlpha() const;
-
- bool isRadial() const { return m_radial; }
- bool isZeroSize() const { return m_p0.x() == m_p1.x() && m_p0.y() == m_p1.y() && (!m_radial || m_r0 == m_r1); }
-
-#if OS(WINCE) && !PLATFORM(QT)
- const FloatPoint& p0() const { return m_p0; }
- const FloatPoint& p1() const { return m_p1; }
- float r0() const { return m_r0; }
- float r1() const { return m_r1; }
- const Vector<ColorStop, 2>& getStops() const;
-#else
-#if PLATFORM(ANDROID)
- SkShader* getShader(SkShader::TileMode);
-#endif
- PlatformGradient platformGradient();
-#endif
- struct ColorStop {
- float stop;
- float red;
- float green;
- float blue;
- float alpha;
-
- ColorStop() : stop(0), red(0), green(0), blue(0), alpha(0) { }
- ColorStop(float s, float r, float g, float b, float a) : stop(s), red(r), green(g), blue(b), alpha(a) { }
- };
-
- void setStopsSorted(bool s) { m_stopsSorted = s; }
-
- void setSpreadMethod(GradientSpreadMethod);
- GradientSpreadMethod spreadMethod() { return m_spreadMethod; }
- void setGradientSpaceTransform(const AffineTransform& gradientSpaceTransformation);
- // Qt and CG transform the gradient at draw time
- AffineTransform gradientSpaceTransform() { return m_gradientSpaceTransformation; }
-
- virtual void fill(GraphicsContext*, const FloatRect&);
- virtual void adjustParametersForTiledDrawing(IntSize& size, FloatRect& srcRect);
-
- void setPlatformGradientSpaceTransform(const AffineTransform& gradientSpaceTransformation);
-
-#if PLATFORM(CG)
- void paint(GraphicsContext*);
-#endif
- private:
- Gradient(const FloatPoint& p0, const FloatPoint& p1);
- Gradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1);
-
- void platformInit() { m_gradient = 0; }
- void platformDestroy();
-
- int findStop(float value) const;
- void sortStopsIfNecessary();
-
- bool m_radial;
- FloatPoint m_p0;
- FloatPoint m_p1;
- float m_r0;
- float m_r1;
- mutable Vector<ColorStop, 2> m_stops;
- mutable bool m_stopsSorted;
- mutable int m_lastStop;
- GradientSpreadMethod m_spreadMethod;
- AffineTransform m_gradientSpaceTransformation;
-
- PlatformGradient m_gradient;
- };
-
-} //namespace
-
-#endif