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    @Override
066    public String getTagName()
067    {
068        return TAG_NAME;
069    }
070
071    @Override
072    protected void build() throws SVGException
073    {
074        super.build();
075
076        StyleAttribute sty = new StyleAttribute();
077
078
079        String fillRuleStrn = (getStyle(sty.setName("fill-rule"))) ? sty.getStringValue() : "nonzero";
080        fillRule = fillRuleStrn.equals("evenodd") ? GeneralPath.WIND_EVEN_ODD : GeneralPath.WIND_NON_ZERO;
081
082        if (getPres(sty.setName("d")))
083        {
084            d = sty.getStringValue();
085        }
086
087        path = buildPath(d, fillRule);
088    }
089
090    @Override
091    public void render(Graphics2D g) throws SVGException
092    {
093        beginLayer(g);
094        renderShape(g, path);
095        finishLayer(g);
096    }
097
098    @Override
099    public Shape getShape()
100    {
101        return shapeToParent(path);
102    }
103
104    @Override
105    public Rectangle2D getBoundingBox() throws SVGException
106    {
107        return boundsToParent(includeStrokeInBounds(path.getBounds2D()));
108    }
109
110    /**
111     * Updates all attributes in this diagram associated with a time event. Ie,
112     * all attributes with track information.
113     *
114     * @return - true if this node has changed state as a result of the time
115     * update
116     */
117    @Override
118    public boolean updateTime(double curTime) throws SVGException
119    {
120//        if (trackManager.getNumTracks() == 0) return false;
121        boolean changeState = super.updateTime(curTime);
122
123        //Get current values for parameters
124        StyleAttribute sty = new StyleAttribute();
125        boolean shapeChange = false;
126
127        if (getStyle(sty.setName("fill-rule")))
128        {
129            int newVal = sty.getStringValue().equals("evenodd")
130                ? GeneralPath.WIND_EVEN_ODD
131                : GeneralPath.WIND_NON_ZERO;
132            if (newVal != fillRule)
133            {
134                fillRule = newVal;
135                changeState = true;
136            }
137        }
138
139        if (getPres(sty.setName("d")))
140        {
141            String newVal = sty.getStringValue();
142            if (!newVal.equals(d))
143            {
144                d = newVal;
145                shapeChange = true;
146            }
147        }
148
149        if (shapeChange)
150        {
151            build();
152//            path = buildPath(d, fillRule);
153//            return true;
154        }
155
156        return changeState || shapeChange;
157    }
158}