Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 184 insertions, 0 deletions

diff --git a/Source/WebCore/platform/graphics/Image.h b/Source/WebCore/platform/graphics/Image.h
new file mode 100644
index 0000000..3c5e7fd
--- /dev/null
+++ b/Source/WebCore/platform/graphics/Image.h
@@ -0,0 +1,184 @@
+/*
+ * 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 "ColorSpace.h"
+#include "GraphicsTypes.h"
+#include "ImageSource.h"
+#include "IntRect.h"
+#include "PlatformString.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+#if PLATFORM(MAC)
+#ifdef __OBJC__
+@class NSImage;
+#else
+class NSImage;
+#endif
+#endif
+
+#if PLATFORM(CG)
+struct CGContext;
+#endif
+
+#if PLATFORM(WIN)
+typedef struct tagSIZE SIZE;
+typedef SIZE* LPSIZE;
+typedef struct HBITMAP__ *HBITMAP;
+#endif
+
+#if PLATFORM(QT)
+#include <QPixmap>
+#endif
+
+#if PLATFORM(GTK)
+typedef struct _GdkPixbuf GdkPixbuf;
+#endif
+
+namespace WebCore {
+
+class FloatPoint;
+class FloatRect;
+class FloatSize;
+class GraphicsContext;
+class SharedBuffer;
+class AffineTransform;
+
+// This class gets notified when an image creates or destroys decoded frames and when it advances animation frames.
+class ImageObserver;
+
+class Image : public RefCounted<Image> {
+    friend class GeneratedImage;
+    friend class GraphicsContext;
+
+public:
+    virtual ~Image();
+    
+    static PassRefPtr<Image> create(ImageObserver* = 0);
+    static PassRefPtr<Image> loadPlatformResource(const char* name);
+    static bool supportsType(const String&); 
+
+    virtual bool isBitmapImage() const { return false; }
+
+    // Derived classes should override this if they can assure that 
+    // the image contains only resources from its own security origin.
+    virtual bool hasSingleSecurityOrigin() const { return false; }
+
+    static Image* nullImage();
+    bool isNull() const { return size().isEmpty(); }
+
+    // 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 { return IntRect(IntPoint(), size()); }
+    int width() const { return size().width(); }
+    int height() const { return size().height(); }
+    virtual bool getHotSpot(IntPoint&) const { return false; }
+
+    bool setData(PassRefPtr<SharedBuffer> data, bool allDataReceived);
+    virtual bool dataChanged(bool /*allDataReceived*/) { return false; }
+    
+    virtual String filenameExtension() const { return String(); } // null string if unknown
+
+    virtual void destroyDecodedData(bool destroyAll = true) = 0;
+    virtual unsigned decodedSize() const = 0;
+
+    SharedBuffer* data() { return m_data.get(); }
+
+    // Animation begins whenever someone draws the image, so startAnimation() is not normally called.
+    // It will automatically pause once all observers no longer want to render the image anywhere.
+    virtual void startAnimation(bool /*catchUpIfNecessary*/ = true) { }
+    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(WIN)
+    virtual bool getHBITMAP(HBITMAP) { return false; }
+    virtual bool getHBITMAPOfSize(HBITMAP, LPSIZE) { return false; }
+#endif
+
+#if PLATFORM(ANDROID)
+    virtual void setURL(const String& str) {}
+#endif
+
+#if PLATFORM(GTK)
+    virtual GdkPixbuf* getGdkPixbuf() { return 0; }
+    static PassRefPtr<Image> loadPlatformThemeIcon(const char* name, int size);
+#endif
+
+    virtual void drawPattern(GraphicsContext*, const FloatRect& srcRect, const AffineTransform& patternTransform,
+                             const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator, const FloatRect& destRect);
+
+protected:
+    Image(ImageObserver* = 0);
+
+    static void fillWithSolidColor(GraphicsContext*, const FloatRect& dstRect, const Color&, ColorSpace styleColorSpace, CompositeOperator);
+
+    // The ColorSpace parameter will only be used for untagged images.
+#if PLATFORM(WIN)
+    virtual void drawFrameMatchingSourceSize(GraphicsContext*, const FloatRect& dstRect, const IntSize& srcSize, ColorSpace styleColorSpace, CompositeOperator) { }
+#endif
+    virtual void draw(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator) = 0;
+    void drawTiled(GraphicsContext*, const FloatRect& dstRect, const FloatPoint& srcPoint, const FloatSize& tileSize, ColorSpace styleColorSpace, CompositeOperator);
+    void drawTiled(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, TileRule hRule, TileRule vRule, ColorSpace styleColorSpace, CompositeOperator);
+
+    // Supporting tiled drawing
+    virtual bool mayFillWithSolidColor() { return false; }
+    virtual Color solidColor() const { return Color(); }
+    
+private:
+    RefPtr<SharedBuffer> m_data; // The encoded raw data for the image. 
+    ImageObserver* m_imageObserver;
+};
+
+}
+
+#endif