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//import org.apache.batik.ext.awt.geom.ExtendedGeneralPath;
045/**
046 * @author Mark McKay
047 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
048 */
049public class Path extends ShapeElement
050{
051
052    public static final String TAG_NAME = "path";
053//    PathCommand[] commands = null;
054    int fillRule = GeneralPath.WIND_NON_ZERO;
055    String d = "";
056//    ExtendedGeneralPath path;
057    GeneralPath path;
058
059    /**
060     * Creates a new instance of Rect
061     */
062    public Path()
063    {
064    }
065
066    public String getTagName()
067    {
068        return TAG_NAME;
069    }
070
071    protected void build() throws SVGException
072    {
073        super.build();
074
075        StyleAttribute sty = new StyleAttribute();
076
077
078        String fillRuleStrn = (getStyle(sty.setName("fill-rule"))) ? sty.getStringValue() : "nonzero";
079        fillRule = fillRuleStrn.equals("evenodd") ? GeneralPath.WIND_EVEN_ODD : GeneralPath.WIND_NON_ZERO;
080
081        if (getPres(sty.setName("d")))
082        {
083            d = sty.getStringValue();
084        }
085
086        path = buildPath(d, fillRule);
087    }
088
089    public void render(Graphics2D g) throws SVGException
090    {
091        beginLayer(g);
092        renderShape(g, path);
093        finishLayer(g);
094    }
095
096    public Shape getShape()
097    {
098        return shapeToParent(path);
099    }
100
101    public Rectangle2D getBoundingBox() throws SVGException
102    {
103        return boundsToParent(includeStrokeInBounds(path.getBounds2D()));
104    }
105
106    /**
107     * Updates all attributes in this diagram associated with a time event. Ie,
108     * all attributes with track information.
109     *
110     * @return - true if this node has changed state as a result of the time
111     * update
112     */
113    public boolean updateTime(double curTime) throws SVGException
114    {
115//        if (trackManager.getNumTracks() == 0) return false;
116        boolean changeState = super.updateTime(curTime);
117
118        //Get current values for parameters
119        StyleAttribute sty = new StyleAttribute();
120        boolean shapeChange = false;
121
122        if (getStyle(sty.setName("fill-rule")))
123        {
124            int newVal = sty.getStringValue().equals("evenodd")
125                ? GeneralPath.WIND_EVEN_ODD
126                : GeneralPath.WIND_NON_ZERO;
127            if (newVal != fillRule)
128            {
129                fillRule = newVal;
130                changeState = true;
131            }
132        }
133
134        if (getPres(sty.setName("d")))
135        {
136            String newVal = sty.getStringValue();
137            if (!newVal.equals(d))
138            {
139                d = newVal;
140                shapeChange = true;
141            }
142        }
143
144        if (shapeChange)
145        {
146            build();
147//            path = buildPath(d, fillRule);
148//            return true;
149        }
150
151        return changeState || shapeChange;
152    }
153}