1/* 2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef GraphicsContextPlatformPrivateCG_h 27#define GraphicsContextPlatformPrivateCG_h 28 29#include <wtf/RetainPtr.h> 30#include <CoreGraphics/CGContext.h> 31 32namespace WebCore { 33 34enum GraphicsContextCGFlag { 35 IsLayerCGContext = 1 << 0, 36 IsAcceleratedCGContext = 1 << 1 37}; 38 39typedef unsigned GraphicsContextCGFlags; 40 41class GraphicsContextPlatformPrivate { 42public: 43 GraphicsContextPlatformPrivate(CGContextRef cgContext, GraphicsContextCGFlags flags = 0) 44 : m_cgContext(cgContext) 45#if PLATFORM(WIN) 46 , m_hdc(0) 47 , m_shouldIncludeChildWindows(false) 48#endif 49 , m_userToDeviceTransformKnownToBeIdentity(false) 50 , m_contextFlags(flags) 51 { 52 } 53 54#if PLATFORM(COCOA) 55 // These methods do nothing on Mac. 56 void save() {} 57 void restore() {} 58 void flush() {} 59 void clip(const FloatRect&) {} 60 void clip(const Path&) {} 61 void scale(const FloatSize&) {} 62 void rotate(float) {} 63 void translate(float, float) {} 64 void concatCTM(const AffineTransform&) {} 65 void setCTM(const AffineTransform&) {} 66#endif 67 68#if PLATFORM(WIN) 69 // On Windows, we need to update the HDC for form controls to draw in the right place. 70 void save(); 71 void restore(); 72 void flush(); 73 void clip(const FloatRect&); 74 void clip(const Path&); 75 void scale(const FloatSize&); 76 void rotate(float); 77 void translate(float, float); 78 void concatCTM(const AffineTransform&); 79 void setCTM(const AffineTransform&); 80 81 HDC m_hdc; 82 bool m_shouldIncludeChildWindows; 83#endif 84 85 RetainPtr<CGContextRef> m_cgContext; 86 bool m_userToDeviceTransformKnownToBeIdentity; 87 GraphicsContextCGFlags m_contextFlags; 88}; 89 90} 91 92#endif // GraphicsContextPlatformPrivateCG_h 93