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/*
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
* Copyright (C) 2015 Apple Inc. All rights reserved.
*
* 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 SVGPathTraversalStateBuilder_h
#define SVGPathTraversalStateBuilder_h
#include "SVGPathConsumer.h"
#include "SVGPoint.h"
namespace WebCore {
class PathTraversalState;
class SVGPathTraversalStateBuilder : public SVGPathConsumer {
public:
SVGPathTraversalStateBuilder(PathTraversalState&, float desiredLength = 0);
unsigned pathSegmentIndex() const { return m_segmentIndex; }
float totalLength() const;
SVGPoint currentPoint() const;
virtual void incrementPathSegmentCount() override { ++m_segmentIndex; }
virtual bool continueConsuming() override;
private:
// Used in UnalteredParsing/NormalizedParsing modes.
virtual void moveTo(const FloatPoint&, bool closed, PathCoordinateMode) override;
virtual void lineTo(const FloatPoint&, PathCoordinateMode) override;
virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode) override;
virtual void closePath() override;
private:
// Not used for PathTraversalState.
virtual void lineToHorizontal(float, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
virtual void lineToVertical(float, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
virtual void arcTo(float, float, float, bool, bool, const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
PathTraversalState& m_traversalState;
unsigned m_segmentIndex { 0 };
};
} // namespace WebCore
#endif // SVGPathTraversalStateBuilder_h
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