imagesourceskia.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (c) 2008, Google Inc. All rights reserved.
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#include "ImageSource.h"

namespace WebCore {

class ImageSourceSkia : public ImageSource {
public:
    // FIXME: This class is a hack to support Chromium's ICO decoder
    // Currently our ICO decoder decodes all data during setData() instead of
    // being lazy.  In addition, it only decodes one frame (closest to the size
    // passed to the decoder during createDecoder, called from setData) and
    // discards all other data in the file.
    //
    // To fix this will require fixing the ICO decoder to be lazy, or to decode
    // all frames.  Apple's decoders (ImageIO) decode all frames, and return
    // them all sorted in decreasing size.  WebCore always draws the first frame.
    //
    // This is a special-purpose routine for the favicon decoder, which is used
    // to specify a particular icon size for the ICOImageDecoder to prefer
    // decoding.  Note that not all favicons are ICOs, so this won't
    // necessarily do anything differently than ImageSource::setData().
    //
    // Passing an empty IntSize for |preferredIconSize| here is exactly
    // equivalent to just calling ImageSource::setData().  See also comments in
    // ICOImageDecoder.cpp.
    void setData(SharedBuffer* data,
                 bool allDataReceived,
                 const IntSize& preferredIconSize);
};

}