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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/css/CSSGradientValue.h | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/css/CSSGradientValue.h')
-rw-r--r-- | Source/WebCore/css/CSSGradientValue.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/Source/WebCore/css/CSSGradientValue.h b/Source/WebCore/css/CSSGradientValue.h new file mode 100644 index 0000000..0b5ca77 --- /dev/null +++ b/Source/WebCore/css/CSSGradientValue.h @@ -0,0 +1,171 @@ +/* + * Copyright (C) 2008 Apple 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 CSSGradientValue_h +#define CSSGradientValue_h + +#include "CSSImageGeneratorValue.h" +#include "CSSPrimitiveValue.h" +#include <wtf/RefPtr.h> +#include <wtf/Vector.h> + +namespace WebCore { + +class FloatPoint; +class Gradient; + +enum CSSGradientType { CSSLinearGradient, CSSRadialGradient }; +enum CSSGradientRepeat { NonRepeating, Repeating }; + +struct CSSGradientColorStop { + RefPtr<CSSPrimitiveValue> m_position; // percentage or length + RefPtr<CSSPrimitiveValue> m_color; +}; + +class CSSGradientValue : public CSSImageGeneratorValue { +public: + virtual Image* image(RenderObject*, const IntSize&); + + void setFirstX(PassRefPtr<CSSPrimitiveValue> val) { m_firstX = val; } + void setFirstY(PassRefPtr<CSSPrimitiveValue> val) { m_firstY = val; } + void setSecondX(PassRefPtr<CSSPrimitiveValue> val) { m_secondX = val; } + void setSecondY(PassRefPtr<CSSPrimitiveValue> val) { m_secondY = val; } + + void addStop(const CSSGradientColorStop& stop) { m_stops.append(stop); } + + Vector<CSSGradientColorStop>& stops() { return m_stops; } + + void sortStopsIfNeeded(); + + virtual bool isLinearGradient() const { return false; } + virtual bool isRadialGradient() const { return false; } + + bool isRepeating() const { return m_repeating; } + + bool deprecatedType() const { return m_deprecatedType; } // came from -webkit-gradient + +protected: + CSSGradientValue(CSSGradientRepeat repeat, bool deprecatedType = false) + : m_stopsSorted(false) + , m_deprecatedType(deprecatedType) + , m_repeating(repeat == Repeating) + { + } + + void addStops(Gradient*, RenderObject*, RenderStyle* rootStyle, float maxLengthForRepeat = 0); + + // Create the gradient for a given size. + virtual PassRefPtr<Gradient> createGradient(RenderObject*, const IntSize&) = 0; + + // Resolve points/radii to front end values. + FloatPoint computeEndPoint(CSSPrimitiveValue*, CSSPrimitiveValue*, RenderStyle*, RenderStyle* rootStyle, const IntSize&); + + // Points. Some of these may be null for linear gradients. + RefPtr<CSSPrimitiveValue> m_firstX; + RefPtr<CSSPrimitiveValue> m_firstY; + + RefPtr<CSSPrimitiveValue> m_secondX; + RefPtr<CSSPrimitiveValue> m_secondY; + + // Stops + Vector<CSSGradientColorStop> m_stops; + bool m_stopsSorted; + bool m_deprecatedType; // -webkit-gradient() + bool m_repeating; +}; + + +class CSSLinearGradientValue : public CSSGradientValue { +public: + static PassRefPtr<CSSLinearGradientValue> create(CSSGradientRepeat repeat, bool deprecatedType = false) + { + return adoptRef(new CSSLinearGradientValue(repeat, deprecatedType)); + } + + void setAngle(PassRefPtr<CSSPrimitiveValue> val) { m_angle = val; } + + virtual String cssText() const; + +private: + CSSLinearGradientValue(CSSGradientRepeat repeat, bool deprecatedType = false) + : CSSGradientValue(repeat, deprecatedType) + { + } + + virtual bool isLinearGradient() const { return true; } + + // Create the gradient for a given size. + virtual PassRefPtr<Gradient> createGradient(RenderObject*, const IntSize&); + + RefPtr<CSSPrimitiveValue> m_angle; // may be null. +}; + +class CSSRadialGradientValue : public CSSGradientValue { +public: + static PassRefPtr<CSSRadialGradientValue> create(CSSGradientRepeat repeat, bool deprecatedType = false) + { + return adoptRef(new CSSRadialGradientValue(repeat, deprecatedType)); + } + + virtual String cssText() const; + + void setFirstRadius(PassRefPtr<CSSPrimitiveValue> val) { m_firstRadius = val; } + void setSecondRadius(PassRefPtr<CSSPrimitiveValue> val) { m_secondRadius = val; } + + void setShape(PassRefPtr<CSSPrimitiveValue> val) { m_shape = val; } + void setSizingBehavior(PassRefPtr<CSSPrimitiveValue> val) { m_sizingBehavior = val; } + + void setEndHorizontalSize(PassRefPtr<CSSPrimitiveValue> val) { m_endHorizontalSize = val; } + void setEndVerticalSize(PassRefPtr<CSSPrimitiveValue> val) { m_endVerticalSize = val; } + +private: + CSSRadialGradientValue(CSSGradientRepeat repeat, bool deprecatedType = false) + : CSSGradientValue(repeat, deprecatedType) + { + } + + virtual bool isRadialGradient() const { return true; } + + // Create the gradient for a given size. + virtual PassRefPtr<Gradient> createGradient(RenderObject*, const IntSize&); + + // Resolve points/radii to front end values. + float resolveRadius(CSSPrimitiveValue*, RenderStyle*, RenderStyle* rootStyle, float* widthOrHeight = 0); + + // These may be null for non-deprecated gradients. + RefPtr<CSSPrimitiveValue> m_firstRadius; + RefPtr<CSSPrimitiveValue> m_secondRadius; + + // The below are only used for non-deprecated gradients. + RefPtr<CSSPrimitiveValue> m_shape; + RefPtr<CSSPrimitiveValue> m_sizingBehavior; + + RefPtr<CSSPrimitiveValue> m_endHorizontalSize; + RefPtr<CSSPrimitiveValue> m_endVerticalSize; +}; + +} // namespace WebCore + +#endif // CSSGradientValue_h |