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SVG Salamander - tools and components for SVG rendering, manipulation and animation
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/*
* Rect.java
*
*
* The Salamander Project - 2D and 3D graphics libraries in Java
* Copyright (C) 2004 Mark McKay
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Mark McKay can be contacted at [email protected]. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on January 26, 2004, 5:25 PM
*/
package com.kitfox.svg;
import java.awt.geom.*;
import java.awt.*;
import com.kitfox.svg.xml.*;
/**
* @author Mark McKay
* @author Mark McKay
*/
public class Polyline extends ShapeElement {
int fillRule = GeneralPath.WIND_NON_ZERO;
String pointsStrn = "";
// float[] points = null;
GeneralPath path;
/** Creates a new instance of Rect */
public Polyline() {
}
/*
public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent)
{
//Load style string
super.loaderStartElement(helper, attrs, parent);
points = XMLParseUtil.parseFloatList(attrs.getValue("points"));
build();
}
*/
public void build() throws SVGException
{
super.build();
StyleAttribute sty = new StyleAttribute();
if (getPres(sty.setName("points"))) pointsStrn = sty.getStringValue();
String fillRuleStrn = getStyle(sty.setName("fill-rule")) ? sty.getStringValue() : "nonzero";
fillRule = fillRuleStrn.equals("evenodd") ? GeneralPath.WIND_EVEN_ODD : GeneralPath.WIND_NON_ZERO;
buildPath();
}
protected void buildPath()
{
float[] points = XMLParseUtil.parseFloatList(pointsStrn);
path = new GeneralPath(fillRule, points.length / 2);
path.moveTo(points[0], points[1]);
for (int i = 2; i < points.length; i += 2)
{
path.lineTo(points[i], points[i + 1]);
}
}
public void render(Graphics2D g) throws SVGException
{
beginLayer(g);
renderShape(g, path);
finishLayer(g);
}
public Shape getShape()
{
return shapeToParent(path);
}
public Rectangle2D getBoundingBox() throws SVGException
{
return boundsToParent(includeStrokeInBounds(path.getBounds2D()));
}
/**
* Updates all attributes in this diagram associated with a time event.
* Ie, all attributes with track information.
* @return - true if this node has changed state as a result of the time
* update
*/
public boolean updateTime(double curTime) throws SVGException
{
// if (trackManager.getNumTracks() == 0) return false;
boolean changeState = super.updateTime(curTime);
//Get current values for parameters
StyleAttribute sty = new StyleAttribute();
boolean shapeChange = false;
if (getStyle(sty.setName("fill-rule")))
{
int newVal = sty.getStringValue().equals("evenodd")
? GeneralPath.WIND_EVEN_ODD
: GeneralPath.WIND_NON_ZERO;
if (newVal != fillRule)
{
fillRule = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("points")))
{
String newVal = sty.getStringValue();
if (!newVal.equals(pointsStrn))
{
pointsStrn = newVal;
shapeChange = true;
}
}
if (shapeChange)
{
build();
// buildPath();
// return true;
}
return changeState || shapeChange;
}
}