/* * 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 WebCore { class PLATFORM_EXPORT IdentityTransformOperation : public TransformOperation { public: static PassRefPtr<IdentityTransformOperation> create() { return adoptRef(new IdentityTransformOperation()); } 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 WebCore #endif // IdentityTransformOperation_h