--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/graphics/BitmapImage.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,222 @@
+/*
+ * 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)
+typedef struct HBITMAP__ *HBITMAP;
+#endif
+
+#if PLATFORM(SYMBIAN)
+class CMaskedBitmap;
+#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);
+#endif
+
+#if PLATFORM(SYMBIAN)
+ CMaskedBitmap* getMaskedBitmap();
+ BitmapImage(CMaskedBitmap*);
+ void setMimeType(const String& mimeType);
+ const String& getMimeType();
+#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(SYMBIAN)
+ 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
+#if PLATFORM(SYMBIAN)
+ mutable CMaskedBitmap* m_maskedBitmap;
+ ImageObserver* m_imageObserver;
+#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