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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* 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 SkewTransformOperation_h
#define SkewTransformOperation_h
#include "TransformOperation.h"
namespace WebCore {
class SkewTransformOperation : public TransformOperation {
public:
static PassRefPtr<SkewTransformOperation> create(double angleX, double angleY, OperationType type)
{
return adoptRef(new SkewTransformOperation(angleX, angleY, type));
}
double angleX() const { return m_angleX; }
double angleY() const { return m_angleY; }
private:
virtual bool isIdentity() const { return m_angleX == 0 && m_angleY == 0; }
virtual OperationType getOperationType() const { return m_type; }
virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == m_type; }
virtual bool operator==(const TransformOperation& o) const
{
if (!isSameType(o))
return false;
const SkewTransformOperation* s = static_cast<const SkewTransformOperation*>(&o);
return m_angleX == s->m_angleX && m_angleY == s->m_angleY;
}
virtual bool apply(TransformationMatrix& transform, const IntSize&) const
{
transform.skew(m_angleX, m_angleY);
return false;
}
virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false);
SkewTransformOperation(double angleX, double angleY, OperationType type)
: m_angleX(angleX)
, m_angleY(angleY)
, m_type(type)
{
}
double m_angleX;
double m_angleY;
OperationType m_type;
};
} // namespace WebCore
#endif // SkewTransformOperation_h
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