001/*
002 * SVG Salamander
003 * Copyright (c) 2004, Mark McKay
004 * All rights reserved.
005 *
006 * Redistribution and use in source and binary forms, with or 
007 * without modification, are permitted provided that the following
008 * conditions are met:
009 *
010 *   - Redistributions of source code must retain the above 
011 *     copyright notice, this list of conditions and the following
012 *     disclaimer.
013 *   - Redistributions in binary form must reproduce the above
014 *     copyright notice, this list of conditions and the following
015 *     disclaimer in the documentation and/or other materials 
016 *     provided with the distribution.
017 *
018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
019 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
020 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
021 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
022 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
023 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
025 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
026 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
027 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
029 * OF THE POSSIBILITY OF SUCH DAMAGE. 
030 * 
031 * Mark McKay can be contacted at mark@kitfox.com.  Salamander and other
032 * projects can be found at http://www.kitfox.com
033 *
034 * Created on January 26, 2004, 5:25 PM
035 */
036package com.kitfox.svg;
037
038import com.kitfox.svg.xml.StyleAttribute;
039import java.awt.Graphics2D;
040import java.awt.Shape;
041import java.awt.geom.GeneralPath;
042import java.awt.geom.Rectangle2D;
043
044/**
045 * @author Mark McKay
046 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
047 */
048public class Path extends ShapeElement
049{
050
051    public static final String TAG_NAME = "path";
052//    PathCommand[] commands = null;
053    int fillRule = GeneralPath.WIND_NON_ZERO;
054    String d = "";
055//    ExtendedGeneralPath path;
056    GeneralPath path;
057
058    /**
059     * Creates a new instance of Rect
060     */
061    public Path()
062    {
063    }
064
065    public String getTagName()
066    {
067        return TAG_NAME;
068    }
069
070    protected void build() throws SVGException
071    {
072        super.build();
073
074        StyleAttribute sty = new StyleAttribute();
075
076
077        String fillRuleStrn = (getStyle(sty.setName("fill-rule"))) ? sty.getStringValue() : "nonzero";
078        fillRule = fillRuleStrn.equals("evenodd") ? GeneralPath.WIND_EVEN_ODD : GeneralPath.WIND_NON_ZERO;
079
080        if (getPres(sty.setName("d")))
081        {
082            d = sty.getStringValue();
083        }
084
085        path = buildPath(d, fillRule);
086    }
087
088    public void render(Graphics2D g) throws SVGException
089    {
090        beginLayer(g);
091        renderShape(g, path);
092        finishLayer(g);
093    }
094
095    public Shape getShape()
096    {
097        return shapeToParent(path);
098    }
099
100    public Rectangle2D getBoundingBox() throws SVGException
101    {
102        return boundsToParent(includeStrokeInBounds(path.getBounds2D()));
103    }
104
105    /**
106     * Updates all attributes in this diagram associated with a time event. Ie,
107     * all attributes with track information.
108     *
109     * @return - true if this node has changed state as a result of the time
110     * update
111     */
112    public boolean updateTime(double curTime) throws SVGException
113    {
114//        if (trackManager.getNumTracks() == 0) return false;
115        boolean changeState = super.updateTime(curTime);
116
117        //Get current values for parameters
118        StyleAttribute sty = new StyleAttribute();
119        boolean shapeChange = false;
120
121        if (getStyle(sty.setName("fill-rule")))
122        {
123            int newVal = sty.getStringValue().equals("evenodd")
124                ? GeneralPath.WIND_EVEN_ODD
125                : GeneralPath.WIND_NON_ZERO;
126            if (newVal != fillRule)
127            {
128                fillRule = newVal;
129                changeState = true;
130            }
131        }
132
133        if (getPres(sty.setName("d")))
134        {
135            String newVal = sty.getStringValue();
136            if (!newVal.equals(d))
137            {
138                d = newVal;
139                shapeChange = true;
140            }
141        }
142
143        if (shapeChange)
144        {
145            build();
146//            path = buildPath(d, fillRule);
147//            return true;
148        }
149
150        return changeState || shapeChange;
151    }
152}