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 COMPUTER, 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 COMPUTER, 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 #include <CoreGraphics/CGContext.h> 27 28 namespace WebCore { 29 30 // FIXME: This would be in GraphicsContextCG.h if that existed. 31 CGColorSpaceRef deviceRGBColorSpaceRef(); 32 33 // FIXME: This would be in GraphicsContextCG.h if that existed. 34 CGColorSpaceRef sRGBColorSpaceRef(); 35 36 class GraphicsContextPlatformPrivate { 37 public: GraphicsContextPlatformPrivate(CGContextRef cgContext)38 GraphicsContextPlatformPrivate(CGContextRef cgContext) 39 : m_cgContext(cgContext) 40 #if PLATFORM(WIN) 41 , m_hdc(0) 42 , m_transparencyCount(0) 43 , m_shouldIncludeChildWindows(false) 44 #endif 45 , m_userToDeviceTransformKnownToBeIdentity(false) 46 { 47 } 48 ~GraphicsContextPlatformPrivate()49 ~GraphicsContextPlatformPrivate() 50 { 51 } 52 53 #if PLATFORM(MAC) || PLATFORM(CHROMIUM) 54 // These methods do nothing on Mac. save()55 void save() {} restore()56 void restore() {} flush()57 void flush() {} clip(const FloatRect &)58 void clip(const FloatRect&) {} clip(const Path &)59 void clip(const Path&) {} scale(const FloatSize &)60 void scale(const FloatSize&) {} rotate(float)61 void rotate(float) {} translate(float,float)62 void translate(float, float) {} concatCTM(const AffineTransform &)63 void concatCTM(const AffineTransform&) {} beginTransparencyLayer()64 void beginTransparencyLayer() {} endTransparencyLayer()65 void endTransparencyLayer() {} 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&); beginTransparencyLayer()79 void beginTransparencyLayer() { m_transparencyCount++; } endTransparencyLayer()80 void endTransparencyLayer() { m_transparencyCount--; } 81 82 HDC m_hdc; 83 unsigned m_transparencyCount; 84 bool m_shouldIncludeChildWindows; 85 #endif 86 87 RetainPtr<CGContextRef> m_cgContext; 88 bool m_userToDeviceTransformKnownToBeIdentity; 89 }; 90 91 } 92