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      1 /*
      2  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #include "config.h"
     21 
     22 #if ENABLE(SVG)
     23 #include "SVGPathStringBuilder.h"
     24 
     25 namespace WebCore {
     26 
     27 String SVGPathStringBuilder::result()
     28 {
     29     unsigned size = m_stringBuilder.length();
     30     if (!size)
     31         return String();
     32 
     33     // Remove trailing space.
     34     m_stringBuilder.resize(size - 1);
     35     return m_stringBuilder.toString();
     36 }
     37 
     38 void SVGPathStringBuilder::moveTo(const FloatPoint& targetPoint, bool, PathCoordinateMode mode)
     39 {
     40     if (mode == AbsoluteCoordinates)
     41         m_stringBuilder.append(String::format("M %.6lg %.6lg ", targetPoint.x(), targetPoint.y()));
     42     else
     43         m_stringBuilder.append(String::format("m %.6lg %.6lg ", targetPoint.x(), targetPoint.y()));
     44 }
     45 
     46 void SVGPathStringBuilder::lineTo(const FloatPoint& targetPoint, PathCoordinateMode mode)
     47 {
     48     if (mode == AbsoluteCoordinates)
     49         m_stringBuilder.append(String::format("L %.6lg %.6lg ", targetPoint.x(), targetPoint.y()));
     50     else
     51         m_stringBuilder.append(String::format("l %.6lg %.6lg ", targetPoint.x(), targetPoint.y()));
     52 }
     53 
     54 void SVGPathStringBuilder::lineToHorizontal(float x, PathCoordinateMode mode)
     55 {
     56     if (mode == AbsoluteCoordinates)
     57         m_stringBuilder.append(String::format("H %.6lg ", x));
     58     else
     59         m_stringBuilder.append(String::format("h %.6lg ", x));
     60 }
     61 
     62 void SVGPathStringBuilder::lineToVertical(float y, PathCoordinateMode mode)
     63 {
     64     if (mode == AbsoluteCoordinates)
     65         m_stringBuilder.append(String::format("V %.6lg ", y));
     66     else
     67         m_stringBuilder.append(String::format("v %.6lg ", y));
     68 }
     69 
     70 void SVGPathStringBuilder::curveToCubic(const FloatPoint& point1, const FloatPoint& point2, const FloatPoint& targetPoint, PathCoordinateMode mode)
     71 {
     72     if (mode == AbsoluteCoordinates)
     73         m_stringBuilder.append(String::format("C %.6lg %.6lg %.6lg %.6lg %.6lg %.6lg ", point1.x(), point1.y(), point2.x(), point2.y(), targetPoint.x(), targetPoint.y()));
     74     else
     75         m_stringBuilder.append(String::format("c %.6lg %.6lg %.6lg %.6lg %.6lg %.6lg ", point1.x(), point1.y(), point2.x(), point2.y(), targetPoint.x(), targetPoint.y()));
     76 }
     77 
     78 void SVGPathStringBuilder::curveToCubicSmooth(const FloatPoint& point2, const FloatPoint& targetPoint, PathCoordinateMode mode)
     79 {
     80     if (mode == AbsoluteCoordinates)
     81         m_stringBuilder.append(String::format("S %.6lg %.6lg %.6lg %.6lg ", point2.x(), point2.y(), targetPoint.x(), targetPoint.y()));
     82     else
     83         m_stringBuilder.append(String::format("s %.6lg %.6lg %.6lg %.6lg ", point2.x(), point2.y(), targetPoint.x(), targetPoint.y()));
     84 }
     85 
     86 void SVGPathStringBuilder::curveToQuadratic(const FloatPoint& point1, const FloatPoint& targetPoint, PathCoordinateMode mode)
     87 {
     88     if (mode == AbsoluteCoordinates)
     89         m_stringBuilder.append(String::format("Q %.6lg %.6lg %.6lg %.6lg ", point1.x(), point1.y(), targetPoint.x(), targetPoint.y()));
     90     else
     91         m_stringBuilder.append(String::format("q %.6lg %.6lg %.6lg %.6lg ", point1.x(), point1.y(), targetPoint.x(), targetPoint.y()));
     92 }
     93 
     94 void SVGPathStringBuilder::curveToQuadraticSmooth(const FloatPoint& targetPoint, PathCoordinateMode mode)
     95 {
     96     if (mode == AbsoluteCoordinates)
     97         m_stringBuilder.append(String::format("T %.6lg %.6lg ", targetPoint.x(), targetPoint.y()));
     98     else
     99         m_stringBuilder.append(String::format("t %.6lg %.6lg ", targetPoint.x(), targetPoint.y()));
    100 }
    101 
    102 void SVGPathStringBuilder::arcTo(float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, const FloatPoint& targetPoint, PathCoordinateMode mode)
    103 {
    104     if (mode == AbsoluteCoordinates)
    105         m_stringBuilder.append(String::format("A %.6lg %.6lg %.6lg %d %d %.6lg %.6lg ", r1, r2, angle, largeArcFlag, sweepFlag, targetPoint.x(), targetPoint.y()));
    106     else
    107         m_stringBuilder.append(String::format("a %.6lg %.6lg %.6lg %d %d %.6lg %.6lg ", r1, r2, angle, largeArcFlag, sweepFlag, targetPoint.x(), targetPoint.y()));
    108 }
    109 
    110 void SVGPathStringBuilder::closePath()
    111 {
    112     m_stringBuilder.append("Z ");
    113 }
    114 
    115 } // namespace WebCore
    116 
    117 #endif // ENABLE(SVG)
    118