78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*
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* Copyright (C) Research In Motion Limited 2010. All rights reserved.
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* Copyright (C) 2015 Apple Inc. All rights reserved.
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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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#pragma once
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#include "SVGPathConsumer.h"
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namespace WebCore {
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enum FloatBlendMode {
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BlendHorizontal,
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BlendVertical
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};
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class SVGPathSource;
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class SVGPathBlender {
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WTF_MAKE_NONCOPYABLE(SVGPathBlender); WTF_MAKE_FAST_ALLOCATED;
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public:
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static bool addAnimatedPath(SVGPathSource& from, SVGPathSource& to, SVGPathConsumer&, unsigned repeatCount);
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static bool blendAnimatedPath(SVGPathSource& from, SVGPathSource& to, SVGPathConsumer&, float);
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static bool canBlendPaths(SVGPathSource& from, SVGPathSource& to);
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private:
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SVGPathBlender(SVGPathSource&, SVGPathSource&, SVGPathConsumer* = nullptr);
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bool canBlendPaths();
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bool addAnimatedPath(unsigned repeatCount);
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bool blendAnimatedPath(float progress);
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bool blendMoveToSegment(float progress);
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bool blendLineToSegment(float progress);
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bool blendLineToHorizontalSegment(float progress);
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bool blendLineToVerticalSegment(float progress);
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bool blendCurveToCubicSegment(float progress);
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bool blendCurveToCubicSmoothSegment(float progress);
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bool blendCurveToQuadraticSegment(float progress);
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bool blendCurveToQuadraticSmoothSegment(float progress);
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bool blendArcToSegment(float progress);
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float blendAnimatedDimensonalFloat(float from, float to, FloatBlendMode, float progress);
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FloatPoint blendAnimatedFloatPoint(const FloatPoint& from, const FloatPoint& to, float progress);
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SVGPathSource& m_fromSource;
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SVGPathSource& m_toSource;
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SVGPathConsumer* m_consumer; // A null consumer indicates that we're just checking blendability.
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FloatPoint m_fromCurrentPoint;
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FloatPoint m_toCurrentPoint;
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PathCoordinateMode m_fromMode { AbsoluteCoordinates };
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PathCoordinateMode m_toMode { AbsoluteCoordinates };
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unsigned m_addTypesCount { 0 };
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bool m_isInFirstHalfOfAnimation { false };
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};
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} // namespace WebCore
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