Add webkit to the repository.

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

1 files changed, 213 insertions, 0 deletions

diff --git a/webkit/pending/BitmapImage.h b/webkit/pending/BitmapImage.h
new file mode 100644
index 0000000..e589beb
--- /dev/null
+++ b/webkit/pending/BitmapImage.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 BitmapImage_h
+#define BitmapImage_h
+
+#include "Image.h"
+#include "Color.h"
+#include "IntSize.h"
+
+#if PLATFORM(MAC)
+#include <wtf/RetainPtr.h>
+#ifdef __OBJC__
+@class NSImage;
+#else
+class NSImage;
+#endif
+#endif
+
+#if PLATFORM(WIN)
+class NativeImageSkia;
+typedef struct HBITMAP__ *HBITMAP;
+#endif
+
+namespace WebCore {
+    struct FrameData;
+}
+
+// This complicated-looking declaration tells the FrameData Vector that it should copy without
+// invoking our constructor or destructor. This allows us to have a vector even for a struct
+// that's not copyable.
+namespace WTF {
+    template<> class VectorTraits<WebCore::FrameData> : public SimpleClassVectorTraits {};
+}
+
+namespace WebCore {
+
+template <typename T> class Timer;
+
+// ================================================
+// FrameData Class
+// ================================================
+
+struct FrameData : Noncopyable {
+    FrameData()
+        : m_frame(0)
+        , m_duration(0)
+        , m_hasAlpha(true) 
+    {
+    }
+
+    ~FrameData()
+    { 
+        clear();
+    }
+
+    void clear();
+
+    NativeImagePtr m_frame;
+    float m_duration;
+    bool m_hasAlpha;
+};
+
+// =================================================
+// BitmapImage Class
+// =================================================
+
+class BitmapImage : public Image {
+    friend class GraphicsContext;
+public:
+#if PLATFORM(QT)
+    BitmapImage(const QPixmap &pixmap, ImageObserver* = 0);
+#endif
+    BitmapImage(ImageObserver* = 0);
+    ~BitmapImage();
+    
+    virtual IntSize size() const;
+
+    virtual bool dataChanged(bool allDataReceived);
+
+    // 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();
+    
+    virtual unsigned decodedSize() const { return m_decodedSize; }
+
+#if PLATFORM(MAC)
+    // Accessors for native image formats.
+    virtual NSImage* getNSImage();
+    virtual CFDataRef getTIFFRepresentation();
+#endif
+    
+#if PLATFORM(CG)
+    virtual CGImageRef getCGImageRef();
+#endif
+
+#if PLATFORM(QT)
+    virtual QPixmap* getPixmap() const;
+#endif
+    
+#if PLATFORM(WIN)
+    virtual bool getHBITMAP(HBITMAP);
+    virtual bool getHBITMAPOfSize(HBITMAP, LPSIZE);
+    virtual NativeImageSkia* getBitmap();
+#endif
+
+#if PLATFORM(WX)
+    virtual wxBitmap* getWxBitmap() const;
+#endif
+
+    virtual NativeImagePtr nativeImageForCurrentFrame() { return frameAtIndex(currentFrame()); }
+
+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);
+#if PLATFORM(QT) || PLATFORM(WX)
+    virtual void drawPattern(GraphicsContext*, const FloatRect& srcRect, const AffineTransform& patternTransform,
+                             const FloatPoint& phase, CompositeOperator, const FloatRect& destRect);
+#endif    
+    size_t currentFrame() const { return m_currentFrame; }
+    size_t frameCount();
+    NativeImagePtr frameAtIndex(size_t);
+    float frameDurationAtIndex(size_t);
+    bool frameHasAlphaAtIndex(size_t); 
+
+    // Decodes and caches a frame. Never accessed except internally.
+    void cacheFrame(size_t index);
+
+    // Called to invalidate all our cached data.  If an image is loading incrementally, we only
+    // invalidate the last cached frame.
+    virtual void destroyDecodedData(bool incremental = false);
+
+    // Whether or not size is available yet.    
+    bool isSizeAvailable();
+
+    // Animation.
+    bool shouldAnimate();
+    virtual void startAnimation();
+    void advanceAnimation(Timer<BitmapImage>*);
+    
+    // Handle platform-specific data
+    void initPlatformData();
+    void invalidatePlatformData();
+    
+    // Checks to see if the image is a 1x1 solid color.  We optimize these images and just do a fill rect instead.
+    void checkForSolidColor();
+    
+    virtual bool mayFillWithSolidColor() const { return m_isSolidColor && m_currentFrame == 0; }
+    virtual Color solidColor() const { return m_solidColor; }
+    
+    ImageSource m_source;
+    mutable IntSize m_size; // The size to use for the overall image (will just be the size of the first image).
+    
+    size_t m_currentFrame; // The index of the current frame of animation.
+    Vector<FrameData> m_frames; // An array of the cached frames of the animation. We have to ref frames to pin them in the cache.
+    
+    Timer<BitmapImage>* m_frameTimer;
+    int m_repetitionCount; // How many total animation loops we should do.
+    int m_repetitionsComplete;  // How many repetitions we've finished.
+
+#if PLATFORM(MAC)
+    mutable RetainPtr<NSImage> m_nsImage; // A cached NSImage of frame 0. Only built lazily if someone actually queries for one.
+    mutable RetainPtr<CFDataRef> m_tiffRep; // Cached TIFF rep for frame 0.  Only built lazily if someone queries for one.
+#endif
+
+    Color m_solidColor;  // If we're a 1x1 solid color, this is the color to use to fill.
+    bool m_isSolidColor;  // Whether or not we are a 1x1 solid image.
+
+    bool m_animatingImageType;  // Whether or not we're an image type that is capable of animating (GIF).
+    bool m_animationFinished;  // Whether or not we've completed the entire animation.
+
+    bool m_allDataReceived;  // Whether or not we've received all our data.
+
+    mutable bool m_haveSize; // Whether or not our |m_size| member variable has the final overall image size yet.
+    bool m_sizeAvailable; // Whether or not we can obtain the size of the first image frame yet from ImageIO.
+    unsigned m_decodedSize; // The current size of all decoded frames.
+
+#if PLATFORM(QT)
+    QPixmap *m_pixmap;
+#endif
+
+};
+
+}
+
+#endif