WebImageDecoder.h

/*
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#ifndef WebImageDecoder_h
#define WebImageDecoder_h

#include "../../../Platform/chromium/public/WebCommon.h"
#include "../../../Platform/chromium/public/WebImage.h"
#include "../../../Platform/chromium/public/WebNonCopyable.h"

namespace WebCore { class ImageDecoder; }

namespace WebKit {

typedef WebCore::ImageDecoder WebImageDecoderPrivate;
class WebData;

class WebImageDecoder : public WebNonCopyable {
public:
    enum Type {
        TypeBMP,
        TypeICO
    };

    ~WebImageDecoder() { reset(); }

    explicit WebImageDecoder(Type type) { init(type); }

    // Sets data contents for underlying decoder. All the API methods
    // require that setData() is called prior to their use.
    WEBKIT_EXPORT void setData(const WebData& data, bool allDataReceived);

    // Deletes owned decoder.
    WEBKIT_EXPORT void reset();

    // Returns true if image decoding failed.
    WEBKIT_EXPORT bool isFailed() const;
    
    // Returns true if size information is available for the decoder.
    WEBKIT_EXPORT bool isSizeAvailable() const;

    // Returns the size of the image.
    WEBKIT_EXPORT WebSize size() const;

    // Gives frame count for the image. For multiple frames, decoder scans the image data for the count.
    WEBKIT_EXPORT size_t frameCount() const;

    // Returns if the frame at given index is completely decoded.
    WEBKIT_EXPORT bool isFrameCompleteAtIndex(int index) const;

    // Creates and returns WebImage from buffer at the index.
    WEBKIT_EXPORT WebImage getFrameAtIndex(int index) const;

private:
    // Creates type-specific decoder.
    WEBKIT_EXPORT void init(Type type);

    WebImageDecoderPrivate* m_private;
};

} // namespace WebKit

#endif