/*

 * 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 ImageSource_h

#define ImageSource_h

#include <wtf/Noncopyable.h>

#include <wtf/Vector.h>

#if PLATFORM(CG)

typedef struct CGImageSource* CGImageSourceRef;

typedef struct CGImage* CGImageRef;

typedef const struct __CFData* CFDataRef;

#elif PLATFORM(QT)

class QPixmap;

#elif PLATFORM(CAIRO)

struct _cairo_surface;

typedef struct _cairo_surface cairo_surface_t;

#elif PLATFORM(SYMBIAN)

#include "PlatformString.h"

class CAnimationDecoder;

class CMaskedBitmap;

#endif

namespace WebCore {

class IntSize;

class SharedBuffer;

#if PLATFORM(CG)

typedef CGImageSourceRef NativeImageSourcePtr;

typedef CGImageRef NativeImagePtr;

#elif PLATFORM(QT)

class ImageDecoderQt;

typedef ImageDecoderQt* NativeImageSourcePtr;

typedef QPixmap* NativeImagePtr;

#elif PLATFORM(SYMBIAN)

typedef CAnimationDecoder* NativeImageSourcePtr;

typedef const Vector<char>* NativeBytePtr;

typedef CMaskedBitmap* NativeImagePtr;

class ImageObserver;

#else

class ImageDecoder;

typedef ImageDecoder* NativeImageSourcePtr;

typedef cairo_surface_t* NativeImagePtr;

#endif

const int cAnimationLoopOnce = -1;

const int cAnimationNone = -2;

class ImageSource : Noncopyable {

public:

    ImageSource();

    ~ImageSource();

    void clear();

    bool initialized() const;

    bool isSizeAvailable();

    IntSize size() const;

    int repetitionCount();

    size_t frameCount() const;

    NativeImagePtr createFrameAtIndex(size_t);

    float frameDurationAtIndex(size_t);

    bool frameHasAlphaAtIndex(size_t); // Whether or not the frame actually used any alpha.

    bool frameIsCompleteAtIndex(size_t); // Whether or not the frame is completely decoded.

#if PLATFORM(SYMBIAN)

    void setDecoderListener(ImageObserver*);

    NativeImageSourcePtr decoder() const { return m_decoder; }

    void setMimeType(const String& mimeType);

    const String& getMimeType();    

#endif

private:

    NativeImageSourcePtr m_decoder;

#if PLATFORM(SYMBIAN)

    String m_mimeType;

#endif

};

}

#endif