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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.svg;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.util.StringTokenizer;
import org.apache.batik.gvt.CompositeGraphicsNode;
/**
* <p>A graphics node that represents an image described as a graphics node.</p>
*
* <p>This work was authored by Keiron Liddle (keiron@aftexsw.com).</p>
*/
public class PDFANode extends CompositeGraphicsNode {
private String destination;
private AffineTransform transform;
/**
* Constructs a new empty {@link PDFANode}.
*/
public PDFANode() {
}
/**
* Set the destination String.
* @param dest the target destination
*/
public void setDestination(String dest) {
destination = dest;
}
/**
* Set the current transform of this node.
* @param tf the transform
*/
public void setTransform(AffineTransform tf) {
transform = tf;
}
/**
* Paints this node if visible.
*
* @param g2d the Graphics2D 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.pdf.PDFLink.EXTERNAL;
Shape outline = getOutline();
if (destination.startsWith("#svgView(viewBox(")) {
type = org.apache.fop.pdf.PDFLink.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) {
//TODO Move this to setDestination() and throw an IllegalArgumentException
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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