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/*
* Copyright (C) 2006, 2007 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 GraphicsContextPlatformPrivateCG_h
#define GraphicsContextPlatformPrivateCG_h
#include <wtf/RetainPtr.h>
#include <CoreGraphics/CGContext.h>
namespace WebCore {
enum GraphicsContextCGFlag {
IsLayerCGContext = 1 << 0,
IsAcceleratedCGContext = 1 << 1
};
typedef unsigned GraphicsContextCGFlags;
class GraphicsContextPlatformPrivate {
public:
GraphicsContextPlatformPrivate(CGContextRef cgContext, GraphicsContextCGFlags flags = 0)
: m_cgContext(cgContext)
#if PLATFORM(WIN)
, m_hdc(0)
, m_transparencyCount(0)
, m_shouldIncludeChildWindows(false)
#endif
, m_userToDeviceTransformKnownToBeIdentity(false)
, m_contextFlags(flags)
{
}
~GraphicsContextPlatformPrivate()
{
}
#if PLATFORM(MAC) || PLATFORM(CHROMIUM)
// These methods do nothing on Mac.
void save() {}
void restore() {}
void flush() {}
void clip(const FloatRect&) {}
void clip(const Path&) {}
void scale(const FloatSize&) {}
void rotate(float) {}
void translate(float, float) {}
void concatCTM(const AffineTransform&) {}
void setCTM(const AffineTransform&) {}
void beginTransparencyLayer() {}
void endTransparencyLayer() {}
#endif
#if PLATFORM(WIN)
// On Windows, we need to update the HDC for form controls to draw in the right place.
void save();
void restore();
void flush();
void clip(const FloatRect&);
void clip(const Path&);
void scale(const FloatSize&);
void rotate(float);
void translate(float, float);
void concatCTM(const AffineTransform&);
void setCTM(const AffineTransform&);
void beginTransparencyLayer() { m_transparencyCount++; }
void endTransparencyLayer() { m_transparencyCount--; }
HDC m_hdc;
unsigned m_transparencyCount;
bool m_shouldIncludeChildWindows;
#endif
RetainPtr<CGContextRef> m_cgContext;
bool m_userToDeviceTransformKnownToBeIdentity;
GraphicsContextCGFlags m_contextFlags;
};
}
#endif // GraphicsContextPlatformPrivateCG_h
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