Add webkit to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 171 insertions, 0 deletions

diff --git a/webkit/pending/Image.h b/webkit/pending/Image.h
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index 0000000..6ffc334
--- /dev/null
+++ b/webkit/pending/Image.h
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+/*
+ * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
+ * Copyright (C) 2004, 2005, 2006 Apple Computer, 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 Image_h
+#define Image_h
+
+#include "Color.h"
+#include "GraphicsTypes.h"
+#include "ImageSource.h"
+#include <wtf/RefPtr.h>
+#include <wtf/PassRefPtr.h>
+#include "SharedBuffer.h"
+
+#if PLATFORM(MAC)
+#ifdef __OBJC__
+@class NSImage;
+#else
+class NSImage;
+#endif
+#endif
+
+#if PLATFORM(CG)
+struct CGContext;
+#endif
+
+#if PLATFORM(WIN)
+class NativeImageSkia;
+typedef struct HBITMAP__* HBITMAP;
+typedef struct tagSIZE* LPSIZE;
+#endif
+
+#if PLATFORM(QT)
+#include <QPixmap>
+#endif
+
+namespace WebCore {
+
+class AffineTransform;
+class FloatPoint;
+class FloatRect;
+class FloatSize;
+class GraphicsContext;
+class IntRect;
+class IntSize;
+class SharedBuffer;
+class String;
+
+// This class gets notified when an image creates or destroys decoded frames and when it advances animation frames.
+class ImageObserver;
+
+class Image : Noncopyable {
+    friend class GraphicsContext;
+public:
+    Image(ImageObserver* = 0);
+    virtual ~Image();
+    
+    static Image* loadPlatformResource(const char* name);
+    static bool supportsType(const String&); 
+
+    bool isNull() const;
+
+    // These are only used for SVGImage right now
+    virtual void setContainerSize(const IntSize&) { }
+    virtual bool usesContainerSize() const { return false; }
+    virtual bool hasRelativeWidth() const { return false; }
+    virtual bool hasRelativeHeight() const { return false; }
+
+    virtual IntSize size() const = 0;
+    IntRect rect() const;
+    int width() const;
+    int height() const;
+
+    bool setData(PassRefPtr<SharedBuffer> data, bool allDataReceived);
+    virtual bool dataChanged(bool allDataReceived) { return false; }
+    
+    // FIXME: PDF/SVG will be underreporting decoded sizes and will be unable to prune because these functions are not
+    // implemented yet for those image types.
+    virtual void destroyDecodedData(bool incremental = false) {};
+    virtual unsigned decodedSize() const { return 0; }
+
+    SharedBuffer* data() { return m_data.get(); }
+
+    // It may look unusual that there is no start animation call as public API.  This is because
+    // we start and stop animating lazily.  Animation begins whenever someone draws the image.  It will
+    // automatically pause once all observers no longer want to render the image anywhere.
+    virtual void stopAnimation() {}
+    virtual void resetAnimation() {}
+    
+    // Typically the CachedImage that owns us.
+    ImageObserver* imageObserver() const { return m_imageObserver; }
+
+    enum TileRule { StretchTile, RoundTile, RepeatTile };
+
+    virtual NativeImagePtr nativeImageForCurrentFrame() { return 0; }
+    
+#if PLATFORM(MAC)
+    // Accessors for native image formats.
+    virtual NSImage* getNSImage() { return 0; }
+    virtual CFDataRef getTIFFRepresentation() { return 0; }
+#endif
+
+#if PLATFORM(CG)
+    virtual CGImageRef getCGImageRef() { return 0; }
+#endif
+
+#if PLATFORM(QT)
+    virtual QPixmap* getPixmap() const { return 0; }
+#endif
+
+#if PLATFORM(WIN)
+    virtual bool getHBITMAP(HBITMAP) { return false; }
+    virtual bool getHBITMAPOfSize(HBITMAP, LPSIZE) { return false; }
+    virtual NativeImageSkia* getBitmap() { return NULL; }
+#endif
+
+protected:
+    static void fillWithSolidColor(GraphicsContext* ctxt, const FloatRect& dstRect, const Color& color, CompositeOperator op);
+
+private:
+#if PLATFORM(WIN)
+    virtual void drawFrameMatchingSourceSize(GraphicsContext*, const FloatRect& dstRect, const IntSize& srcSize, CompositeOperator) { }
+#endif
+    virtual void draw(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, CompositeOperator) = 0;
+    void drawTiled(GraphicsContext*, const FloatRect& dstRect, const FloatPoint& srcPoint, const FloatSize& tileSize, CompositeOperator);
+    void drawTiled(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, TileRule hRule, TileRule vRule, CompositeOperator);
+
+    // Supporting tiled drawing
+    virtual bool mayFillWithSolidColor() const { return false; }
+    virtual Color solidColor() const { return Color(); }
+    
+    virtual void startAnimation() { }
+    
+    virtual void drawPattern(GraphicsContext*, const FloatRect& srcRect, const AffineTransform& patternTransform,
+                             const FloatPoint& phase, CompositeOperator, const FloatRect& destRect);
+#if PLATFORM(CG)
+    // These are private to CG.  Ideally they would be only in the .cpp file, but the callback requires access
+    // to the private function nativeImageForCurrentFrame()
+    static void drawPatternCallback(void* info, CGContext*);
+#endif
+    
+protected:
+    RefPtr<SharedBuffer> m_data; // The encoded raw data for the image. 
+    ImageObserver* m_imageObserver;
+};
+
+}
+
+#endif