/platform/external/webkit/WebCore/css/CSSGradientValue.h
https://github.com/aharish/totoro-gb-opensource-update2 · C Header · 112 lines · 57 code · 25 blank · 30 comment · 0 complexity · 5cec2b01836147fa5ce81a13d6dea8ee MD5 · raw file
- /*
- * 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 };
- struct CSSGradientColorStop {
- CSSGradientColorStop()
- : m_stop(0)
- {
- }
-
- float m_stop;
- RefPtr<CSSPrimitiveValue> m_color;
- };
- class CSSGradientValue : public CSSImageGeneratorValue {
- public:
- static PassRefPtr<CSSGradientValue> create()
- {
- return adoptRef(new CSSGradientValue);
- }
- virtual String cssText() const;
- virtual Image* image(RenderObject*, const IntSize&);
- CSSGradientType type() const { return m_type; }
- void setType(CSSGradientType type) { m_type = type; }
-
- 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 setFirstRadius(PassRefPtr<CSSPrimitiveValue> val) { m_firstRadius = val; }
- void setSecondRadius(PassRefPtr<CSSPrimitiveValue> val) { m_secondRadius = val; }
- void addStop(const CSSGradientColorStop& stop) { m_stops.append(stop); }
- void sortStopsIfNeeded();
- private:
- CSSGradientValue()
- : m_type(CSSLinearGradient)
- , m_stopsSorted(false)
- {
- }
-
- // Create the gradient for a given size.
- PassRefPtr<Gradient> createGradient(RenderObject*, const IntSize&);
-
- // Resolve points/radii to front end values.
- FloatPoint resolvePoint(CSSPrimitiveValue*, CSSPrimitiveValue*, const IntSize&, float zoomFactor);
- float resolveRadius(CSSPrimitiveValue*, float zoomFactor);
-
- // Type
- CSSGradientType m_type;
- // Points
- RefPtr<CSSPrimitiveValue> m_firstX;
- RefPtr<CSSPrimitiveValue> m_firstY;
-
- RefPtr<CSSPrimitiveValue> m_secondX;
- RefPtr<CSSPrimitiveValue> m_secondY;
-
- // Radii (for radial gradients only)
- RefPtr<CSSPrimitiveValue> m_firstRadius;
- RefPtr<CSSPrimitiveValue> m_secondRadius;
-
- // Stops
- Vector<CSSGradientColorStop> m_stops;
- bool m_stopsSorted;
- };
- } // namespace WebCore
- #endif // CSSGradientValue_h