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78 lines
2.8 KiB
C++
78 lines
2.8 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_SKEWTRANSFORMOPERATION_H_
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#define SKY_ENGINE_PLATFORM_TRANSFORMS_SKEWTRANSFORMOPERATION_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 SkewTransformOperation : public TransformOperation {
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public:
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static PassRefPtr<SkewTransformOperation> create(double angleX,
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double angleY,
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OperationType type) {
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return adoptRef(new SkewTransformOperation(angleX, angleY, type));
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}
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double angleX() const { return m_angleX; }
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double angleY() const { return m_angleY; }
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virtual bool canBlendWith(const TransformOperation& other) const;
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private:
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virtual bool isIdentity() const override { return !m_angleX && !m_angleY; }
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virtual OperationType type() const override { return m_type; }
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virtual bool operator==(const TransformOperation& o) const override {
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if (!isSameType(o))
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return false;
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const SkewTransformOperation* s =
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static_cast<const SkewTransformOperation*>(&o);
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return m_angleX == s->m_angleX && m_angleY == s->m_angleY;
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}
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virtual void apply(TransformationMatrix& transform,
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const FloatSize&) const override {
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transform.skew(m_angleX, m_angleY);
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}
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virtual PassRefPtr<TransformOperation> blend(
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const TransformOperation* from,
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double progress,
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bool blendToIdentity = false) override;
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SkewTransformOperation(double angleX, double angleY, OperationType type)
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: m_angleX(angleX), m_angleY(angleY), m_type(type) {}
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double m_angleX;
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double m_angleY;
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OperationType m_type;
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};
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} // namespace blink
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#endif // SKY_ENGINE_PLATFORM_TRANSFORMS_SKEWTRANSFORMOPERATION_H_
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