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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.svg;
import org.apache.batik.gvt.*;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Point2D;
import java.awt.geom.Dimension2D;
import java.awt.geom.AffineTransform;
import java.util.StringTokenizer;
/**
* A graphics node that represents an image described as a graphics node.
*
* @author <a href="mailto:keiron@aftexsw.com">Keiron Liddle</a>
*/
public class PDFANode extends CompositeGraphicsNode {
String destination;
AffineTransform transform;
/**
* Constructs a new empty <tt>PDFANode</tt>.
*/
public PDFANode() {}
/**
* Set the destination String.
*/
public void setDestination(String dest) {
destination = dest;
}
public void setTransform(AffineTransform tf) {
transform = tf;
}
/**
* Paints this node if visible.
*
* @param g2d the Graphics2D to use
* @param rc the GraphicsNodeRenderContext to use
*/
public void paint(Graphics2D g2d) {
if (isVisible) {
super.paint(g2d);
if(g2d instanceof PDFGraphics2D) {
PDFGraphics2D pdfg = (PDFGraphics2D)g2d;
int type = org.apache.fop.layout.LinkSet.EXTERNAL;
Shape outline = getOutline();
if(destination.startsWith("#svgView(viewBox(")) {
type = org.apache.fop.layout.LinkSet.INTERNAL;
String nums = destination.substring(17, destination.length() - 2);
float x = 0;
float y = 0;
float width = 0;
float height = 0;
int count = 0;
try {
StringTokenizer st = new StringTokenizer(nums, ",");
while(st.hasMoreTokens()) {
String tok = st.nextToken();
count++;
switch(count) {
case 1:
x = Float.parseFloat(tok);
break;
case 2:
y = Float.parseFloat(tok);
break;
case 3:
width = Float.parseFloat(tok);
break;
case 4:
height = Float.parseFloat(tok);
break;
default:
break;
}
}
} catch(Exception e) {
e.printStackTrace();
}
Rectangle2D destRect = new Rectangle2D.Float(x, y, width, height);
destRect = transform.createTransformedShape(destRect).getBounds();
// these numbers need conversion to current
// svg position and scaled for the page
x = (float)destRect.getX();
y = (float)destRect.getY();
width = (float)destRect.getWidth();
height = (float)destRect.getHeight();
destination = "" + x + " " + y + " "
+ (x + width) + " " + (y + height);
}
pdfg.addLink(getBounds(), transform, destination, type);
}
}
}
}
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