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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.pdf;
/**
* class representing a /GoTo object.
*
*/
public class PDFGoTo extends PDFAction {
/**
* the pageReference
*/
protected String pageReference;
protected String destination = null;
protected float xPosition = 0, yPosition = 0;
/**
* create a /GoTo object.
*
* @param number the object's number
* @param pageReference the pageReference represented by this object
*/
public PDFGoTo(int number, String pageReference) {
/* generic creation of object */
super(number);
this.pageReference = pageReference;
}
/**
* Sets page reference after object has been created
*
* @param pageReference
* the new page reference to use
*/
public void setPageReference(String pageReference) {
this.pageReference = pageReference;
}
/**
* Sets the Y position to jump to
*
* @param yPosition y position
*/
public void setYPosition(float yPosition) {
this.yPosition = yPosition;
}
public void setDestination(String dest) {
destination = dest;
}
/**
* Sets the x Position to jump to
*
* @param xPosition x position
*/
public void setXPosition(int xPosition) {
this.xPosition = (xPosition / 1000f);
}
public String getAction() {
return referencePDF();
}
/**
* represent the object in PDF
*
* @return the PDF string
*/
public byte[] toPDF() {
String dest;
if(destination == null) {
dest = "/D [" + this.pageReference + " /XYZ " + xPosition
+ " " + yPosition + " null]\n";
} else {
dest = "/D [" + this.pageReference + " " + destination + "]\n";
}
String p = new String(this.number + " " + this.generation
+ " obj\n<<\n/S /GoTo\n" + dest
+ ">>\nendobj\n");
return p.getBytes();
}
/*
* example
* 29 0 obj
* <<
* /S /GoTo
* /D [23 0 R /FitH 600]
* >>
* endobj
*/
/**
* Check if this equals another object.
*
* @param obj the object to compare
* @return true if this equals other object
*/
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || !(obj instanceof PDFGoTo)) {
return false;
}
PDFGoTo gt = (PDFGoTo)obj;
if (gt.pageReference == null) {
if (pageReference != null) {
return false;
}
} else {
if (!gt.pageReference.equals(pageReference)) {
return false;
}
}
if(destination == null) {
if (!(gt.destination == null && gt.xPosition == xPosition
&& gt.yPosition == yPosition)) {
return false;
}
} else {
if (!destination.equals(gt.destination)) {
return false;
}
}
return true;
}
}
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