Introduce SVGPathQuery to hold SVG path query methods

third_party/WebKit/Source/core/svg/SVGPathTraversalStateBuilder.h

-/*
- * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
- * Copyright (C) Research In Motion Limited 2010. 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 "core/svg/SVGPathConsumer.h"
-#include "platform/graphics/PathTraversalState.h"
-
-namespace blink {
-
-class FloatPoint;
-
-class SVGPathTraversalStateBuilder final : public SVGPathConsumer {
-public:
-    SVGPathTraversalStateBuilder(PathTraversalState::PathTraversalAction, float desiredLength = 0);
-
-    unsigned pathSegmentIndex() const { return m_segmentIndex; }
-    float totalLength();
-    FloatPoint currentPoint();
-
-    void incrementPathSegmentCount() override;
-    bool continueConsuming() override;
-
-private:
-    void emitSegment(const PathSegmentData&) override;
-
-    PathTraversalState m_traversalState;
-    unsigned m_segmentIndex;
-};
-
-} // namespace blink
-
-#endif // SVGPathTraversalStateBuilder_h