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The Apache PDFBox library is an open source Java tool for working with PDF documents.
/*
* 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.
*/
package org.apache.pdfbox.pdfviewer;
import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.io.IOException;
import javax.swing.JPanel;
import org.apache.pdfbox.PDFReader;
import org.apache.pdfbox.pdmodel.PDPage;
/**
* A class to handle some prettyness around a single PDF page.
*
* @author Ben Litchfield
* @version $Revision: 1.5 $
*/
public class PageWrapper implements MouseMotionListener
{
private JPanel pageWrapper = new JPanel();
private PDFPagePanel pagePanel = null;
private PDFReader reader = null;
private static final int SPACE_AROUND_DOCUMENT = 20;
/**
* Constructor.
*
* @param aReader The reader application that holds this page.
*
* @throws IOException If there is an error creating the page drawing objects.
*/
public PageWrapper( PDFReader aReader ) throws IOException
{
reader = aReader;
pagePanel = new PDFPagePanel();
pageWrapper.setLayout( null );
pageWrapper.add( pagePanel );
pagePanel.setLocation( SPACE_AROUND_DOCUMENT, SPACE_AROUND_DOCUMENT );
pageWrapper.setBorder( javax.swing.border.LineBorder.createBlackLineBorder() );
pagePanel.addMouseMotionListener( this );
}
/**
* This will display the PDF page in this component.
*
* @param page The PDF page to display.
*/
public void displayPage( PDPage page )
{
pagePanel.setPage( page );
pagePanel.setPreferredSize( pagePanel.getSize() );
Dimension d = pagePanel.getSize();
d.width+=(SPACE_AROUND_DOCUMENT*2);
d.height+=(SPACE_AROUND_DOCUMENT*2);
pageWrapper.setPreferredSize( d );
pageWrapper.validate();
}
/**
* This will get the JPanel that can be displayed.
*
* @return The panel with the displayed PDF page.
*/
public JPanel getPanel()
{
return pageWrapper;
}
/**
* {@inheritDoc}
*/
public void mouseDragged(MouseEvent e)
{
//do nothing when mouse moves.
}
/**
* {@inheritDoc}
*/
public void mouseMoved(MouseEvent e)
{
//reader.getBottomStatusPanel().getStatusLabel().setText( e.getX() + "," + (pagePanel.getHeight() - e.getY()) );
reader.getBottomStatusPanel().getStatusLabel().setText( e.getX() + "," + e.getY() );
}
}