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Awesomeness
Mar 10, 2009, 05:33 PM
Sorry, It's me and my compression program again :)

Ok, so all I have left to do is make it so that it works and decompresses when I double click on a .cmprzz file. So, I've registered the extension in the Info.plist and it works fine, but I can't seem to get my application to USE it. It's going to be hard to explain it to you, so I'll post the whole thing:


package compression;

import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.apple.eawt.Application;
import com.apple.eawt.ApplicationEvent;
import com.apple.eawt.ApplicationListener;



/*
* Comprezzor.java uses these files:
* images/Open.gif
* images/Save.gif
*/

public class Comprezzor extends JPanel
implements ActionListener, ApplicationListener {
static private final String newline = "\n";
JButton comprezzButton, decomprezzButton;
JTextArea log;
JFileChooser fc;
ApplicationListener appListener;


public Comprezzor() {
super(new BorderLayout());

//Create the log first, because the action listeners
//need to refer to it. We format the log here.
log = new JTextArea(12,30);
log.setLineWrap(true);
log.setWrapStyleWord(true);
log.setMargin(new Insets(5,5,5,5));
log.setEditable(false);
JScrollPane logScrollPane = new JScrollPane(log);
logScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
logScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
log.append("Welcome to Comprezzor v1.0. This program sucks. It might not even work anyway." + newline + newline);

log.setCaretPosition(log.getDocument().getLength());

//Create a file chooser
fc = new JFileChooser();
fc.setMultiSelectionEnabled(false);
fc.setFileSelectionMode(JFileChooser.FILES_ONLY);



//Create the comprezz button.
comprezzButton = new JButton("Comprezz File...",
createImageIcon("images/Open.gif"));
comprezzButton.addActionListener(this);

// Create the decomprezz button.
decomprezzButton = new JButton("Decomprezz File...",
createImageIcon("images/Save.gif"));
decomprezzButton.addActionListener(this);

//For layout purposes, put the buttons in a separate panel
JPanel buttonPanel = new JPanel(); //use FlowLayout
buttonPanel.add(comprezzButton);
buttonPanel.add(decomprezzButton);

//Add the buttons and the log to this panel.
add(buttonPanel, BorderLayout.PAGE_START);
add(logScrollPane, BorderLayout.CENTER);
}
String fileText = null;
String filePath = null;
String text = null;

public void MacOSAppAdapter() {
appListener = new MyAppEventHandler();
}

/** Method to register this handler with Apple's event manager, calling
* addApplicationListener in parent class.
*/
public void register() {
addApplicationListener(appListener);
}

class MyAppEventHandler implements ApplicationListener {
public void handleOpenApplication(ApplicationEvent event) {
}

public void handleAbout(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handleOpenFile(ApplicationEvent event) {
try {
File file = event.//HELP! How do I get the file path?!
log.append("Now decomprezzing: " + file.getName() + "." + newline);
filePath = file.getAbsolutePath();
log.append("Opening file..." + newline);
fileText = Opener.readFile(filePath);
fileText = JDecompress.decompress(fileText);
log.append("Decomprezzing..." + newline);
log.append("Writing file..." + newline);
Writer.Save(file, fileText);
file.setName(file.getName().split(".cmprzz")[0]);
log.append("Done!" + newline + newline);
}
catch (Throwable t) {
log.append("Didn't work =(" + newline + newline);
}


}

public void handlePreferences(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handlePrintFile(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handleQuit(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handleReOpenApplication(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}
}


public void actionPerformed(ActionEvent e) {
//Handle open button action.
if (e.getSource() == comprezzButton) {
fc.setDialogTitle("Comprezz File");
int returnVal = fc.showOpenDialog(Comprezzor.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
//This is where a real application would open the file.
try {
File file = fc.getSelectedFile();
log.append("Now comprezzing: " + file.getName() + "." + newline);
fc.setCurrentDirectory(new File("."));
fc.showOpenDialog(null);
filePath = file.getAbsolutePath();
fileText = Opener.readFile(filePath);
log.append("Done!" + newline + newline);
}
catch (Throwable t) {
log.append("Didn't work =(" + newline + newline);
}
} else {
log.append("Comprezz command cancelled." + newline + newline);
}
log.setCaretPosition(log.getDocument().getLength());


}

//Handle save button action.
else if (e.getSource() == decomprezzButton) {
fc.setDialogTitle("Decomprezz File");
int returnVal = fc.showOpenDialog(Comprezzor.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
//This is where a real application would save the file.
try {
File file = fc.getSelectedFile();
log.append("Now decomprezzing: " + file.getName() + "." + newline);
fc.setCurrentDirectory(new File("."));
filePath = file.getAbsolutePath();
log.append("Opening file..." + newline);
fileText = Opener.readFile(filePath);
fileText = JDecompress.decompress(fileText);
log.append("Decomprezzing..." + newline);
log.append("Writing file..." + newline);
Writer.Save(file, fileText);
file.setName(file.getName().split(".cmprzz")[0]);
log.append("Done!" + newline + newline);
}
catch (Throwable t) {
log.append("Didn't work =(" + newline + newline);
}
} else {
log.append("Decomprezz command cancelled." + newline + newline);
}
log.setCaretPosition(log.getDocument().getLength());
}
}

/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = Comprezzor.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}

/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event dispatch thread.
*/
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("Comprezzor");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Add content to the window.
frame.add(new Comprezzor());

//Display the window.
frame.pack();
frame.setVisible(true);
}

public static void main(final String args[]) {
//Schedule a job for the event dispatch thread:
//creating and showing this application's GUI.
SwingUtilities.invokeLater(new Runnable() {
public void run() {
//Turn off metal's use of bold fonts
UIManager.put("swing.boldMetal", Boolean.FALSE);
createAndShowGUI();
}
});
}

public void handleAbout(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handleOpenApplication(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handleOpenFile(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handlePreferences(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handlePrintFile(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handleQuit(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}

public void handleReOpenApplication(ApplicationEvent arg0) {
// TODO Auto-generated method stub

}
}

Eclipse forced me to add those thingies with the TODO crap... I don't want them! I have a limited understanding of creating .app applications. This code has a few errors in it. setName doesn't work/exist either! I just want it to open double clicked .cmprzz files, decompress them, and remove the .cmprzz.

This is so hard :(



Burtonsnow9
Mar 10, 2009, 06:17 PM
Before I look through the code to try to see what is happening, thought I would point out that the // TODO ... stubs are just put in there by Eclipse to remind you that those methods were auto-added and you may want to do stuff with them. It's more of a friendly reminder to you, but you can definitely just get rid of them.

But now I'll try to look through the code and see what is up.