org.jpedal.examples.viewer.gui.popups.FileDownload Maven / Gradle / Ivy
/*
* ===========================================
* 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
*
* ---------------
* FileDownload.java
* ---------------
*/
package org.jpedal.examples.viewer.gui.popups;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Point;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.URL;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import org.jpedal.utils.LogWriter;
import org.jpedal.utils.Messages;
import org.jpedal.io.ObjectStore;
public class FileDownload {
//Load file from URL into file then open file
File tempURLFile;
JFrame download;
JPanel p;
JProgressBar pb;
JLabel downloadMessage;
JLabel downloadFile;
JLabel turnOff;
int downloadCount;
boolean visible = true;
String progress = "";
// Coords to display the window at
final Point coords;
@SuppressWarnings("UnusedDeclaration")
public FileDownload(final boolean showWindow, final Point pos){
visible = showWindow;
coords = pos;
if(visible){
download = new JFrame();
download.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
p = new JPanel(new GridBagLayout());
pb = new JProgressBar();
downloadMessage = new JLabel();
downloadFile = new JLabel();
turnOff = new JLabel();
download.setResizable(false);
download.setTitle(Messages.getMessage("PageLayoutViewMenu.DownloadWindowTitle"));
//BoxLayout bl = new BoxLayout(p, BoxLayout.X_AXIS);
final GridBagConstraints gbc = new GridBagConstraints();
gbc.fill=GridBagConstraints.BOTH;
gbc.gridy=0;
gbc.gridx=0;
gbc.gridwidth=2;
//gbc.fill = GridBagConstraints.BOTH;
downloadFile.setSize(250,downloadFile.getHeight());
downloadFile.setMinimumSize(new Dimension(250,15));
downloadFile.setMaximumSize(new Dimension(250,15));
downloadFile.setPreferredSize(new Dimension(250,15));
p.add(downloadFile, gbc);
gbc.gridy=1;
downloadMessage.setSize(250,downloadFile.getHeight());
downloadMessage.setMinimumSize(new Dimension(250,15));
downloadMessage.setMaximumSize(new Dimension(250,15));
downloadMessage.setPreferredSize(new Dimension(250,15));
p.add(downloadMessage,gbc);
gbc.gridy=2;
pb.setSize(260,downloadFile.getHeight());
pb.setMinimumSize(new Dimension(260,20));
pb.setMaximumSize(new Dimension(260,20));
pb.setPreferredSize(new Dimension(260,20));
p.add(pb,gbc);
gbc.gridy=3;
p.add(turnOff,gbc);
download.getContentPane().add(p);
download.setSize(320, 100);
}
}
@SuppressWarnings("UnusedDeclaration")
public File createWindow(final String pdfUrl){
final URL url;
final InputStream is;
try {
final int fileLength;
final String str;
// if(pdfUrl.startsWith("jar:/")) {
//
//
// str= "file.pdf";//Viewer.file;
// is=this.getClass().getResourceAsStream(pdfUrl.substring(4));
//
// //fileLength=is.available();
// //System.out.println(str+">>"+pdfUrl.substring(4)+"<<>>"+is);
// }else{
url = new URL(pdfUrl);
is = url.openStream();
str=url.getPath().substring(url.getPath().lastIndexOf('/')+1);
fileLength = url.openConnection().getContentLength();
//}
tempURLFile = File.createTempFile(str.substring(0, str.lastIndexOf('.')), str.substring(str.lastIndexOf('.')),new File(ObjectStore.temp_dir));
final FileOutputStream fos = new FileOutputStream(tempURLFile);
if(visible && coords!=null){
download.setLocation((coords.x-(download.getWidth()/2)), (coords.y-(download.getHeight()/2)));
download.setVisible(true);
}
if(visible){
pb.setMinimum(0);
pb.setMaximum(fileLength);
//saveLocal.setEnabled(false);
String message = Messages.getMessage("PageLayoutViewMenu.DownloadWindowMessage");
message = message.replaceAll("FILENAME", str);
downloadFile.setText(message);
final Font f = turnOff.getFont();
turnOff.setFont(new Font(f.getName(), f.getStyle(), 8));
turnOff.setAlignmentY(JLabel.RIGHT_ALIGNMENT);
turnOff.setText(Messages.getMessage("PageLayoutViewMenu.DownloadWindowTurnOff"));
}
//download.setVisible(true);
// Download buffer
final byte[] buffer = new byte[4096];
// Download the PDF document
int read;
int current = 0;
String rate = "kb"; //mb
int mod = 1000; //1000000
if(fileLength>1000000){
rate = "mb";
mod = 1000000;
}
if(visible){
progress = Messages.getMessage("PageLayoutViewMenu.DownloadWindowProgress");
if(fileLength<1000000) {
progress = progress.replaceAll("DVALUE", (fileLength / mod) + " " + rate);
} else{
String fraction = String.valueOf(((fileLength % mod) / 10000));
if(((fileLength%mod)/10000)<10) {
fraction = '0' + fraction;
}
progress = progress.replaceAll("DVALUE", (fileLength/mod)+"."+fraction+ ' ' +rate);
}
}
while ((read = is.read(buffer)) != -1) {
current += read;
downloadCount += read;
if(visible){
if(fileLength<1000000) {
downloadMessage.setText(progress.replaceAll("DSOME", (current / mod) + " " + rate));
} else{
String fraction = String.valueOf(((current % mod) / 10000));
if(((current%mod)/10000)<10) {
fraction = '0' + fraction;
}
downloadMessage.setText(progress.replaceAll("DSOME", (current/mod)+"."+fraction+ ' ' +rate));
}
pb.setValue(current);
download.repaint();
}
fos.write(buffer, 0, read);
}
fos.flush();
// Close streams
is.close();
fos.close();
//File completed download, show the save button
if(visible) {
downloadMessage.setText("Download of " + str + " is complete.");
}
//saveLocal.setEnabled(true);
} catch (final Exception e) {
LogWriter.writeLog("[PDF] Exception " + e + " opening URL "+ pdfUrl);
e.printStackTrace();
}
if(visible) {
download.setVisible(false);
}
return tempURLFile;
}
}
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