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      1 /*
      2  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) 2007 Eric Seidel <eric (at) webkit.org>
      5  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  */
     22 
     23 #include "config.h"
     24 #include "platform/graphics/PathTraversalState.h"
     25 
     26 #include "core/svg/SVGPathTraversalStateBuilder.h"
     27 
     28 namespace WebCore {
     29 
     30 SVGPathTraversalStateBuilder::SVGPathTraversalStateBuilder()
     31     : m_traversalState(0)
     32 {
     33 }
     34 
     35 void SVGPathTraversalStateBuilder::moveTo(const FloatPoint& targetPoint, bool, PathCoordinateMode)
     36 {
     37     ASSERT(m_traversalState);
     38     m_traversalState->m_totalLength += m_traversalState->moveTo(targetPoint);
     39 }
     40 
     41 void SVGPathTraversalStateBuilder::lineTo(const FloatPoint& targetPoint, PathCoordinateMode)
     42 {
     43     ASSERT(m_traversalState);
     44     m_traversalState->m_totalLength += m_traversalState->lineTo(targetPoint);
     45 }
     46 
     47 void SVGPathTraversalStateBuilder::curveToCubic(const FloatPoint& point1, const FloatPoint& point2, const FloatPoint& targetPoint, PathCoordinateMode)
     48 {
     49     ASSERT(m_traversalState);
     50     m_traversalState->m_totalLength += m_traversalState->cubicBezierTo(point1, point2, targetPoint);
     51 }
     52 
     53 void SVGPathTraversalStateBuilder::closePath()
     54 {
     55     ASSERT(m_traversalState);
     56     m_traversalState->m_totalLength += m_traversalState->closeSubpath();
     57 }
     58 
     59 void SVGPathTraversalStateBuilder::setDesiredLength(float desiredLength)
     60 {
     61     ASSERT(m_traversalState);
     62     m_traversalState->m_desiredLength = desiredLength;
     63 }
     64 
     65 bool SVGPathTraversalStateBuilder::continueConsuming()
     66 {
     67     ASSERT(m_traversalState);
     68     m_traversalState->processSegment();
     69     return !m_traversalState->m_success;
     70 }
     71 
     72 void SVGPathTraversalStateBuilder::incrementPathSegmentCount()
     73 {
     74     ASSERT(m_traversalState);
     75     ++m_traversalState->m_segmentIndex;
     76 }
     77 
     78 unsigned SVGPathTraversalStateBuilder::pathSegmentIndex()
     79 {
     80     ASSERT(m_traversalState);
     81     return m_traversalState->m_segmentIndex;
     82 }
     83 
     84 float SVGPathTraversalStateBuilder::totalLength()
     85 {
     86     ASSERT(m_traversalState);
     87     return m_traversalState->m_totalLength;
     88 }
     89 
     90 SVGPoint SVGPathTraversalStateBuilder::currentPoint()
     91 {
     92     ASSERT(m_traversalState);
     93     return m_traversalState->m_current;
     94 }
     95 
     96 }
     97