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/*
* Copyright (C) 2010 Sencha, 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 ContextShadow_h
#define ContextShadow_h
#include <QPainter>
namespace WebCore {
// This is to track and keep the shadow state. We use this rather than
// using GraphicsContextState to allow possible optimizations (right now
// only to determine the shadow type, but in future it might covers things
// like cached scratch image, persistent shader, etc).
// This class should be copyable since GraphicsContextQt keeps a stack of
// the shadow state for savePlatformState and restorePlatformState.
class ContextShadow {
public:
enum {
NoShadow,
OpaqueSolidShadow,
AlphaSolidShadow,
BlurShadow
} type;
QColor color;
int blurRadius;
QPointF offset;
ContextShadow();
ContextShadow(const QColor& c, float r, qreal dx, qreal dy);
void clear();
// Draws the shadow for colored rectangle (can't be filled with pattern
// or gradient) according to the shadow parameters.
// Note: 'rect' specifies the rectangle which casts the shadow,
// NOT the bounding box of the shadow.
void drawShadowRect(QPainter* p, const QRectF& rect);
};
} // namespace WebCore
#endif // ContextShadow_h
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