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/*
* Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* aint with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef Filter_h
#define Filter_h
#if ENABLE(FILTERS)
#include "FloatRect.h"
#include "FloatSize.h"
#include "ImageBuffer.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/text/StringHash.h>
namespace WebCore {
class FilterEffect;
class Filter : public RefCounted<Filter> {
public:
virtual ~Filter() { }
void setSourceImage(PassOwnPtr<ImageBuffer> sourceImage) { m_sourceImage = sourceImage; }
ImageBuffer* sourceImage() { return m_sourceImage.get(); }
FloatSize filterResolution() const { return m_filterResolution; }
void setFilterResolution(const FloatSize& filterResolution) { m_filterResolution = filterResolution; }
virtual FloatRect sourceImageRect() const = 0;
virtual FloatRect filterRegion() const = 0;
// SVG specific
virtual void determineFilterPrimitiveSubregion(FilterEffect*, const FloatRect&) { }
virtual FloatSize maxImageSize() const = 0;
virtual bool effectBoundingBoxMode() const = 0;
private:
OwnPtr<ImageBuffer> m_sourceImage;
FloatSize m_filterResolution;
};
} // namespace WebCore
#endif // ENABLE(FILTERS)
#endif // Filter_h
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