1 /* 2 * Copyright (C) 2008 Apple Computer, 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 #ifndef GeneratedImage_h 27 #define GeneratedImage_h 28 29 #include "platform/geometry/IntSize.h" 30 #include "platform/graphics/Image.h" 31 #include "wtf/RefPtr.h" 32 33 namespace WebCore { 34 35 class PLATFORM_EXPORT GeneratedImage : public Image { 36 public: currentFrameHasSingleSecurityOrigin()37 virtual bool currentFrameHasSingleSecurityOrigin() const OVERRIDE { return true; } 38 setContainerSize(const IntSize & size)39 virtual void setContainerSize(const IntSize& size) OVERRIDE { m_size = size; } usesContainerSize()40 virtual bool usesContainerSize() const OVERRIDE { return true; } hasRelativeWidth()41 virtual bool hasRelativeWidth() const OVERRIDE { return true; } hasRelativeHeight()42 virtual bool hasRelativeHeight() const OVERRIDE { return true; } 43 virtual void computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) OVERRIDE; 44 size()45 virtual IntSize size() const OVERRIDE { return m_size; } 46 47 // Assume that generated content has no decoded data we need to worry about destroyDecodedData(bool)48 virtual void destroyDecodedData(bool) OVERRIDE { } 49 50 protected: 51 virtual void drawPattern(GraphicsContext*, const FloatRect&, 52 const FloatSize&, const FloatPoint&, CompositeOperator, 53 const FloatRect&, blink::WebBlendMode, const IntSize& repeatSpacing) OVERRIDE = 0; 54 55 // FIXME: Implement this to be less conservative. currentFrameKnownToBeOpaque()56 virtual bool currentFrameKnownToBeOpaque() OVERRIDE { return false; } 57 GeneratedImage()58 GeneratedImage() { } 59 60 IntSize m_size; 61 }; 62 63 } 64 65 #endif 66