--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/graphics/Image.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,173 @@
+/*
+ * 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)
+typedef struct HBITMAP__ *HBITMAP;
+#endif
+
+#if PLATFORM(SYMBIAN)
+class CMaskedBitmap;
+#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;
+
+ 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 };
+
+#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(SYMBIAN)
+ // Accessors for native image formats.
+ virtual CMaskedBitmap* getMaskedBitmap() { return 0; }
+ static Image* createImageFromVGContext(IntSize sz);
+ virtual void setMimeType(const String& /*mimeType*/){};
+ virtual const String& getMimeType() { return String();};
+#endif
+
+#if PLATFORM(WIN)
+ virtual bool getHBITMAP(HBITMAP) { return false; }
+ virtual bool getHBITMAPOfSize(HBITMAP, LPSIZE) { return false; }
+#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 NativeImagePtr nativeImageForCurrentFrame() { return 0; }
+
+ 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