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64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
/*
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* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
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* (C) 2000 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
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* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef SKY_ENGINE_PLATFORM_TRANSFORMS_IDENTITYTRANSFORMOPERATION_H_
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#define SKY_ENGINE_PLATFORM_TRANSFORMS_IDENTITYTRANSFORMOPERATION_H_
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#include "flutter/sky/engine/platform/transforms/TransformOperation.h"
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namespace blink {
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class PLATFORM_EXPORT IdentityTransformOperation : public TransformOperation {
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public:
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static PassRefPtr<IdentityTransformOperation> create() {
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return adoptRef(new IdentityTransformOperation());
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}
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virtual bool canBlendWith(const TransformOperation& other) const {
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return isSameType(other);
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}
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private:
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virtual bool isIdentity() const override final { return true; }
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virtual OperationType type() const override { return Identity; }
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virtual bool operator==(const TransformOperation& o) const override {
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return isSameType(o);
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}
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virtual void apply(TransformationMatrix&, const FloatSize&) const override {}
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virtual PassRefPtr<TransformOperation> blend(const TransformOperation*,
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double,
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bool = false) override {
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return this;
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}
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IdentityTransformOperation() {}
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};
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} // namespace blink
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#endif // SKY_ENGINE_PLATFORM_TRANSFORMS_IDENTITYTRANSFORMOPERATION_H_
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