blob: c77a9f10175dd28beea6317c0a2a726aff52d5df [file] [log] [blame]
/*
* 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 "platform/transforms/TransformOperation.h"
namespace blink {
class PLATFORM_EXPORT IdentityTransformOperation : public TransformOperation {
public:
static PassRefPtr<IdentityTransformOperation> create()
{
return adoptRef(new IdentityTransformOperation());
}
virtual bool canBlendWith(const TransformOperation& other) const
{
return isSameType(other);
}
private:
virtual bool isIdentity() const OVERRIDE FINAL { return true; }
virtual OperationType type() const OVERRIDE { return Identity; }
virtual bool operator==(const TransformOperation& o) const OVERRIDE
{
return isSameType(o);
}
virtual void apply(TransformationMatrix&, const FloatSize&) const OVERRIDE { }
virtual PassRefPtr<TransformOperation> blend(const TransformOperation*, double, bool = false) OVERRIDE
{
return this;
}
IdentityTransformOperation()
{
}
};
} // namespace blink
#endif // IdentityTransformOperation_h