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| import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.nio.*;
import java.nio.channels.*;
import javax.swing.*;
import com.sun.pdfview.*;
public class PDFView
{
private PagePanel panel;
private PDFFile pdffile;
private int currentPage = 1;
public PDFView() throws IOException
{
// set up the frame and panel
JFrame frame = new JFrame("PDF Viewer");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
panel = new PagePanel();
frame.add(panel,BorderLayout.CENTER);
JButton previousButton = new JButton("Précédent");
previousButton.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent arg0)
{
goToPage(--currentPage);
}
});
JButton nextButton = new JButton("Suivant");
nextButton.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent arg0)
{
goToPage(++currentPage);
}
});
JPanel southPanel = new JPanel(new GridLayout(1,2));
southPanel.add(previousButton);
southPanel.add(nextButton);
frame.add(southPanel,BorderLayout.SOUTH);
frame.pack();
frame.setVisible(true);
// load a pdf from a byte buffer
File file = new File("C:/BOU_AFM-000257298.pdf");
RandomAccessFile raf = new RandomAccessFile(file, "r");
FileChannel channel = raf.getChannel();
ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel
.size());
pdffile = new PDFFile(buf);
// show the first page
goToPage(currentPage);
}
public void loadPdf(File file) throws IOException
{
// load a pdf from a byte buffer
RandomAccessFile raf = new RandomAccessFile(file, "r");
FileChannel channel = raf.getChannel();
ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel
.size());
pdffile = new PDFFile(buf);
// show the first page
PDFPage page2 = pdffile.getPage(currentPage);
panel.showPage(page2);
}
public void goToPage(int nbpage) throws IndexOutOfBoundsException
{
if(nbpage<1||nbpage>pdffile.getNumPages())
throw new IndexOutOfBoundsException("Invalid index requested :"+nbpage);
PDFPage page = pdffile.getPage(nbpage);
panel.showPage(page);
}
public static void main(final String[] args)
{
SwingUtilities.invokeLater(new Runnable() {
public void run()
{
try
{
PDFView view =new PDFView();
view.loadPdf(new File("C:/BOU_AFM-000257298.pdf"));
} catch (IOException ex)
{
ex.printStackTrace();
}
}
});
}
} |
