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Downloading.java
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Downloading.java
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import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
//import static jdk.jfr.internal.instrument.JDKEvents.remove;
/**
* this class is a downloading file that has a panel to show the download process
* and has a object of Info class to show more
* details of downloading file
*/
public class Downloading implements Serializable{
float speed;
Download download;
//panel fields
JPanel downloadProcess;
JPanel buttonPanel;
JProgressBar progressBar;
//an object from Info class
Info info;
//boolean fields
boolean selected = false;
boolean isFinished = false;
//value field
int value = 50;
//an object from Action class
Action action = new Action();
//button fields
JButton buttonResume = new JButton();
JButton buttonPause = new JButton();
JButton buttonRemove = new JButton();
JButton buttonSelect;
/**
* this object is for get the right mouse click
* and do the proper operation when
* right mouse clicked
*/
MouseListener mouseListener = new MouseListener() {
@Override
public void mouseClicked(MouseEvent e) {
if (e.getModifiers() == MouseEvent.BUTTON3_MASK )
info.show();
else if (e.getClickCount() == 2)
open();
}
@Override
public void mousePressed(MouseEvent e) {
}
@Override
public void mouseReleased(MouseEvent e) {
}
@Override
public void mouseEntered(MouseEvent e) {
}
@Override
public void mouseExited(MouseEvent e) {
}
};
/**
* this constructor initial the fields
* and make the panel of download with details like progress bar
* or buttons panel
* @param downloadName is the name of file
* @param downloadUrl is the web size address
* @param ssavingAddress is the saving address
*/
public Downloading(String downloadName,float size,String downloadUrl,String ssavingAddress){
info = new Info();
info.size = size;
if (info.size == 0) {
try {
info.size = getFileSize(new URL(downloadUrl));
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
//info = new Info(downloadName,downloadUrl,ssavingAddress);
downloadProcess = new JPanel(new BorderLayout());
downloadProcess.addMouseListener(mouseListener);
buttonPanel = new JPanel(new GridLayout(1,4));
progressBar = new JProgressBar();
//progressBar.setValue(value);
buttonSelect = new JButton();
buttonResume.setBackground(Color.white);
buttonPause.setBackground(Color.white);
buttonRemove.setBackground(Color.white);
buttonSelect.addActionListener(action);
buttonPause.addActionListener(action);
buttonRemove.addActionListener(action);
buttonResume.addActionListener(action);
progressBar.setForeground(Color.GREEN);
progressBar.setStringPainted(true);
try {
Image image = ImageIO.read(getClass().getResource("\\EagleGetIcons\\download.png"));
buttonSelect.setIcon(new ImageIcon(image));
buttonSelect.setBackground(Color.white);
downloadProcess.add(buttonSelect,BorderLayout.WEST);
downloadProcess.add(progressBar,BorderLayout.CENTER);
image = ImageIO.read(getClass().getResource("\\EagleGetIcons\\pause1.png"));
buttonPause.setIcon(new ImageIcon(image));
image = ImageIO.read(getClass().getResource("\\EagleGetIcons\\resume.png"));
buttonResume.setIcon(new ImageIcon(image));
image = ImageIO.read(getClass().getResource("\\EagleGetIcons\\remove1.png"));
buttonRemove.setIcon(new ImageIcon(image));
}
catch (Exception e){
System.out.println(e);
}
buttonPanel.add(buttonPause);
buttonPanel.add(buttonResume);
buttonPanel.add(buttonRemove);
JTextArea textArea = new JTextArea(downloadName + " speed is " + "downloaded" + (progressBar.getValue()/100)*info.size + "from" + info.size);
textArea.setEditable(false);
downloadProcess.add(textArea,BorderLayout.SOUTH);
downloadProcess.add(buttonPanel,BorderLayout.EAST);
downloadProcess.setBackground(Color.white);
downloadProcess.setBorder(new EmptyBorder(2,2,2,2));
}
/**
* this method return the main panel of this class
* @return the downloadProcess field
*/
public JPanel getDownloadProcess() {
return downloadProcess;
}
/**
* set the value field
* @param percent is the value of downloading
*/
public void setValue(int percent) {
value = percent;
progressBar.setValue(percent);
}
/**
* @return value field
*/
public int getValue() {
return value;
}
/**
* pause downloading
*/
public void pause(){
download.pause();
System.out.println("pause");
}
/**
* resume downloading
*/
public void resume(){
download.resume();
//System.out.println("start");
}
/**
* set the selected field true or false
* this method is for select the download or un select
*/
public void select(){
if (selected){
selected = false;
buttonSelect.setBackground(Color.white);
}
else{
selected = true;
buttonSelect.setBackground(Color.cyan);
}
}
/**
* this INNER class is for set the Action of each button
* and do the proper operation when a button clicked
*/
public void open(){
System.out.println(info.savingAddress);
File file = new File(info.savingAddress);
//first check if Desktop is supported by Platform or not
if(!Desktop.isDesktopSupported()){
System.out.println("Desktop is not supported");
return;
}
Desktop desktop = Desktop.getDesktop();
if(file.exists()) {
try {
desktop.open(file);
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* starting a downloading
* @param downloadName is the download name
* @param downloadUrl is the url adderess
* @param ssavingAddress is the saving address
*/
public void startDownload(String downloadName,String downloadUrl,String ssavingAddress){
try {
download = new Download(new URL(downloadUrl),ssavingAddress,downloadName,progressBar,info.size,isFinished);
System.out.println(getFileSize(new URL(downloadUrl)) + " mamad");
info.set(downloadName, getFileSize(new URL(downloadUrl)), downloadUrl, ssavingAddress);
info.savingAddress = download.Address;
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* this method get the size of downloading file
* @param url is hte url address of a downliading
* @return the size of downloading
*/
public static float getFileSize(URL url) {
URLConnection conn = null;
try {
conn = url.openConnection();
if(conn instanceof HttpURLConnection) {
((HttpURLConnection)conn).setRequestMethod("HEAD");
}
conn.getInputStream();
return (float) conn.getContentLength() / (1024*1024);
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
if(conn instanceof HttpURLConnection) {
((HttpURLConnection)conn).disconnect();
}
}
}
/**
* cancel a downloading
*/
public void cancel() {
download.cancel();
progressBar.setValue(0);
}
/**
* this calss is a inner calss for action listener
*/
class Action implements ActionListener{
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == buttonSelect){
select();
}
else if (e.getSource() == buttonPause)
pause();
else if (e.getSource() == buttonResume)
resume();
else if (e.getSource() == buttonRemove)
select();
}
}
}