/* | |
* 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 IdentityTransformOperation_h | |
#define IdentityTransformOperation_h | |
#include "TransformOperation.h" | |
namespace WebCore { | |
class IdentityTransformOperation : public TransformOperation { | |
public: | |
static PassRefPtr<IdentityTransformOperation> create() | |
{ | |
return adoptRef(new IdentityTransformOperation()); | |
} | |
private: | |
virtual bool isIdentity() const { return true; } | |
virtual OperationType getOperationType() const { return IDENTITY; } | |
virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == IDENTITY; } | |
virtual bool operator==(const TransformOperation& o) const | |
{ | |
return isSameType(o); | |
} | |
virtual bool apply(TransformationMatrix&, const IntSize&) const | |
{ | |
return false; | |
} | |
virtual PassRefPtr<TransformOperation> blend(const TransformOperation*, double, bool = false) | |
{ | |
return this; | |
} | |
IdentityTransformOperation() | |
{ | |
} | |
}; | |
} // namespace WebCore | |
#endif // IdentityTransformOperation_h |