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, 1:56 AM
035 */
036package com.kitfox.svg;
037
038import com.kitfox.svg.xml.StyleAttribute;
039import java.awt.Graphics2D;
040import java.awt.Rectangle;
041import java.awt.Shape;
042import java.awt.geom.AffineTransform;
043import java.awt.geom.Rectangle2D;
044
045/**
046 * @author Mark McKay
047 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
048 */
049public class Symbol extends Group
050{
051
052    public static final String TAG_NAME = "symbol";
053    AffineTransform viewXform;
054    Rectangle2D viewBox;
055
056    /**
057     * Creates a new instance of Stop
058     */
059    public Symbol()
060    {
061    }
062
063    @Override
064    public String getTagName()
065    {
066        return TAG_NAME;
067    }
068
069    @Override
070    protected void build() throws SVGException
071    {
072        super.build();
073
074        StyleAttribute sty = new StyleAttribute();
075
076//        sty = getPres("unicode");
077//        if (sty != null) unicode = sty.getStringValue();
078
079
080        if (getPres(sty.setName("viewBox")))
081        {
082            float[] dim = sty.getFloatList();
083            viewBox = new Rectangle2D.Float(dim[0], dim[1], dim[2], dim[3]);
084        }
085
086        if (viewBox == null)
087        {
088//            viewBox = super.getBoundingBox();
089            viewBox = new Rectangle(0, 0, 1, 1);
090        }
091
092        //Transform pattern onto unit square
093        viewXform = new AffineTransform();
094        viewXform.scale(1.0 / viewBox.getWidth(), 1.0 / viewBox.getHeight());
095        viewXform.translate(-viewBox.getX(), -viewBox.getY());
096    }
097
098    @Override
099    protected boolean outsideClip(Graphics2D g) throws SVGException
100    {
101        Shape clip = g.getClip();
102//        g.getClipBounds(clipBounds);
103        Rectangle2D rect = super.getBoundingBox();
104        if (clip == null || clip.intersects(rect))
105        {
106            return false;
107        }
108
109        return true;
110
111    }
112
113    @Override
114    public void render(Graphics2D g) throws SVGException
115    {
116        AffineTransform oldXform = g.getTransform();
117        g.transform(viewXform);
118
119        super.render(g);
120
121        g.setTransform(oldXform);
122    }
123
124    @Override
125    public Shape getShape()
126    {
127        Shape shape = super.getShape();
128        return viewXform.createTransformedShape(shape);
129    }
130
131    @Override
132    public Rectangle2D getBoundingBox() throws SVGException
133    {
134        Rectangle2D rect = super.getBoundingBox();
135        return viewXform.createTransformedShape(rect).getBounds2D();
136    }
137
138    /**
139     * Updates all attributes in this diagram associated with a time event. Ie,
140     * all attributes with track information.
141     *
142     * @return - true if this node has changed state as a result of the time
143     * update
144     */
145    @Override
146    public boolean updateTime(double curTime) throws SVGException
147    {
148//        if (trackManager.getNumTracks() == 0) return false;
149        boolean changeState = super.updateTime(curTime);
150
151        //View box properties do not change
152
153        return changeState;
154    }
155}