/*
* Copyright 2006-2017 ICEsoft Technologies Canada Corp.
*
* Licensed 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.
*/
package org.icepdf.core.pobjects;
/**
* The class represents a generic PDF object. Each PDF object can be identified
* by a unique reference object, which contains the objects object number and
* generation number.
*
* @see org.icepdf.core.pobjects.Reference
* @since 1.0
*/
public class PObject {
private Object object;
private Reference objectReference = null;
private int linearTraversalOffset;
/**
* Create a new PObject.
*
* @param object a PDF object that is associated by the objectNumber and
* and objectGeneration data
* @param objectNumber the object number of the PDF object
* @param objectGeneration the generation number of the PDF object
*/
public PObject(Object object, Number objectNumber, Number objectGeneration) {
this.object = object;
objectReference = new Reference(objectNumber, objectGeneration);
}
/**
* Create a new PObject.
*
* @param object a PDF object that is associated by the objectNumber and
* and objectGeneration data
* @param objectReference Reference object which contains the PDF objects
* number and generation data
*/
public PObject(Object object, Reference objectReference) {
this.object = object;
this.objectReference = objectReference;
}
/**
* Gets the reference information for this PDF object.
*
* @return Reference object which contains the PDF objects
* number and generation data
*/
public Reference getReference() {
return objectReference;
}
/**
* Gets the generic PDF Object stored at this object number and generation.
*
* @return object refrenced byt he object number and generation
*/
public Object getObject() {
return object;
}
@Override
public int hashCode() {
int result = object != null ? object.hashCode() : 0;
result = 31 * result + (objectReference != null ? objectReference.hashCode() : 0);
return result;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
PObject pObject = (PObject) o;
if (object != null ? !object.equals(pObject.object) : pObject.object != null) {
return false;
}
if (objectReference != null ? !objectReference.equals(pObject.objectReference) : pObject.objectReference != null) {
return false;
}
return true;
}
public int getLinearTraversalOffset() {
return linearTraversalOffset;
}
public void setLinearTraversalOffset(int linearTraversalOffset) {
this.linearTraversalOffset = linearTraversalOffset;
}
/**
* String representation of this object. Used mainly for debugging.
*
* @return string representation of this object
*/
public String toString() {
return objectReference.toString() + " " + object.toString();
}
}