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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* ExtractSelectionAsImage.java
* ---------------
*/
package org.jpedal.examples.viewer.commands;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import org.jpedal.PdfDecoderInt;
import org.jpedal.examples.handlers.DefaultImageHelper;
import org.jpedal.examples.viewer.Values;
import org.jpedal.examples.viewer.commands.generic.GUIExtractSelectionAsImage;
import org.jpedal.examples.viewer.utils.FileFilterer;
import org.jpedal.examples.viewer.utils.IconiseImage;
import org.jpedal.gui.GUIFactory;
import org.jpedal.utils.LogWriter;
import org.jpedal.utils.Messages;
/**
* This class is a Swing specific class to hold the Swing code for
* Extracting the drawn CursorBox as an Image.
*/
public class ExtractSelectionAsImage extends GUIExtractSelectionAsImage {
public static void execute(final Values commonValues, final GUIFactory currentGUI, final PdfDecoderInt decode_pdf) {
extractSelectedScreenAsImage(commonValues,currentGUI,decode_pdf); //Calls the generic code.
/**
* put in panel
*/
//if(temp!=null){
final JPanel image_display = new JPanel();
image_display.setLayout( new BorderLayout() );
//wrap image so we can display
if( snapShot != null ){
final IconiseImage icon_image = new IconiseImage( snapShot );
//add image if there is one
image_display.add( new JLabel( icon_image ), BorderLayout.CENTER );
}else{
return;
}
final JScrollPane image_scroll = new JScrollPane();
image_scroll.getViewport().add( image_display );
//set image size
int imgSize=snapShot.getWidth();
if(imgSize450) {
imgSize = 450;
}
/**resizeable pop-up for content*/
final Container frame = (Container)currentGUI.getFrame();
final JDialog displayFrame = new JDialog((JFrame)null,true);
displayFrame.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
if(commonValues.getModeOfOperation()!=Values.RUNNING_APPLET){
displayFrame.setLocationRelativeTo(null);
displayFrame.setLocation(frame.getLocationOnScreen().x+10,frame.getLocationOnScreen().y+10);
}
displayFrame.setSize(imgSize,imgSize);
displayFrame.setTitle(Messages.getMessage("PdfViewerMessage.SaveImage"));
displayFrame.getContentPane().setLayout(new BorderLayout());
displayFrame.getContentPane().add(image_scroll,BorderLayout.CENTER);
final JPanel buttonBar=new JPanel();
buttonBar.setLayout(new BorderLayout());
displayFrame.getContentPane().add(buttonBar,BorderLayout.SOUTH);
/**
* yes option allows user to save content
*/
final JButton yes=new JButton(Messages.getMessage("PdfMessage.Yes"));
yes.setFont(new Font("SansSerif", Font.PLAIN, 12));
buttonBar.add(yes,BorderLayout.WEST);
yes.addActionListener(new ActionListener(){
@Override
public void actionPerformed(final ActionEvent e) {
displayFrame.setVisible(false);
File file;
StringBuffer fileToSave;
boolean finished=false;
while(!finished){
/**
* Sets the saveable file-types for snapshot image.
*/
final JFileChooser chooser = new JFileChooser(System.getProperty( "user.dir" ) );
final FileFilterer defaultOpt = new FileFilterer( new String[] { "png","png" }, "PNG" );
chooser.setFileFilter(defaultOpt); //sets the default file-type to PNG
chooser.addChoosableFileFilter( new FileFilterer( new String[] { "tif", "tiff" }, "TIFF" ) ); //adds Tiff as a saveable filetype option
chooser.addChoosableFileFilter( new FileFilterer( new String[] { "jpg","jpeg" }, "JPEG" ) ); //adds jpeg as a saveable filetype option
final int approved = chooser.showSaveDialog(image_scroll);
if(approved==JFileChooser.APPROVE_OPTION){
file = chooser.getSelectedFile();
fileToSave= new StringBuffer (file.getAbsolutePath());
String format=chooser.getFileFilter().getDescription();
if(format.equals("All Files")) {
format = "TIFF";
}
if(!fileToSave.toString().toLowerCase().endsWith(('.' +format).toLowerCase())){
fileToSave.append('.').append(format);
file=new File(fileToSave.toString());
}
if(file.exists()){
final int n=currentGUI.showConfirmDialog(fileToSave.append('\n') +
Messages.getMessage("PdfViewerMessage.FileAlreadyExists")+".\n" +
Messages.getMessage("PdfViewerMessage.ConfirmResave"),
Messages.getMessage("PdfViewerMessage.Resave"),JOptionPane.YES_NO_OPTION);
if(n==1) {
continue;
}
}
//Do the actual save
if(snapShot!=null) {
try {
DefaultImageHelper.write(snapShot, format, fileToSave.toString());
} catch (IOException ex) {
if(LogWriter.isOutput()) {
LogWriter.writeLog("Exception in writing image "+ex);
}
}
}
finished=true;
}else{
return;
}
}
displayFrame.dispose();
}
});
/**
* no option just removes display
*/
final JButton no=new JButton(Messages.getMessage("PdfMessage.No"));
no.setFont(new Font("SansSerif", Font.PLAIN, 12));
buttonBar.add(no,BorderLayout.EAST);
no.addActionListener(new ActionListener(){
@Override
public void actionPerformed(final ActionEvent e) {
displayFrame.dispose();
}});
/**show the popup*/
displayFrame.setVisible(true);
}
}