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/*
Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
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
along 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 GraphicsLayerTransform_h
#define GraphicsLayerTransform_h
#include "FloatPoint.h"
#include "FloatPoint3D.h"
#include "FloatSize.h"
#include "TransformationMatrix.h"
namespace WebCore {
class GraphicsLayerTransform {
public:
WEBCORE_EXPORT GraphicsLayerTransform();
void setPosition(const FloatPoint&);
void setSize(const FloatSize&);
void setAnchorPoint(const FloatPoint3D&);
void setFlattening(bool);
void setLocalTransform(const TransformationMatrix&);
void setChildrenTransform(const TransformationMatrix&);
const TransformationMatrix& combined() const;
const TransformationMatrix& combinedForChildren() const;
void combineTransforms(const TransformationMatrix& parentTransform);
private:
void combineTransformsForChildren() const;
FloatPoint3D m_anchorPoint;
FloatPoint m_position;
FloatSize m_size;
bool m_flattening;
bool m_dirty;
mutable bool m_childrenDirty;
TransformationMatrix m_local;
TransformationMatrix m_children;
TransformationMatrix m_combined;
mutable TransformationMatrix m_combinedForChildren;
};
}
#endif // GraphicsLayerTransform_h
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