Dumb Netbeans Q

carderne · #1 (**permalink**) 05-22-2008, 09:14 PM

I've made a program that basicall serves as a music organizer. Import iTunes playlist. Remove duplicates. Edit stuff. Create new playlists. Previously it just used System.out.println to display the playlists. Now I found the joy (curse) of Netbeans and made a pretty GUI for the whole thing.

There is a class for reading text playlists, adding and showing music etc. Another one for extra sundry methods and then the new class for the JFrame Gui.

I want to put a button in the JFrame to open a JFileChooser window to select a file to import.

A made a new class for the FileChooser... But I have no idea how to make it go when I click the button...

I've tried some things already but I can't get it to work.

Eranga · #2 (**permalink**) 05-23-2008, 05:26 AM

After adding the JFileChooser component add an action event to it. Get the action text and do the process.

Eku · #3 (**permalink**) 05-23-2008, 10:13 AM

here is some hints

1. Add a ActionListener
2. Get the return value of the JFilechooser (it can be OK or the Cancel button)
Sample in getting the return value:

Code:

int RT = fileChooser.showOpenDialog(this);

3. Compare the return value to your desired value
Another Sample:

Code:

 if (RT == JFileChooser.APPROVE_OPTION){
//do your thing here for Yes or Ok button
} else if (RT == JFileChooser.CANCEL_OPTION){
//here is for Cancel or No button
}

carderne · #4 (**permalink**) 05-23-2008, 03:05 PM

Thanks, I will try those ideas.

carderne · #5 (**permalink**) 05-24-2008, 06:31 PM

I got it to show the FileChooser window, and return a file. The only problem is that it doesn't return the full directory path (I'm using Windows).

I made a class based on a JInternalFrame called Browse, and the JFileChooser in this class I called browser.

Here is my code:

Browse br = new Browse();
br.browser.showOpenDialog(null);
File selection = br.browser.getSelectedFile());

What method can I use to return the entire path?

Thanks again for your help.

Eranga · #6 (**permalink**) 05-25-2008, 06:03 AM

getSelectedFile() gives the full path.

What's your browser class do? I can't see nay file chooser instance here in your code segment.

carderne · #7 (**permalink**) 05-25-2008, 09:21 AM

That's just the bit of code that executes when the specific button is clicked.

The Browse class is a JInternalFrame with a JFileChooser called browser in it. That's it.

So I created a new object of the Browse class:
Browse br = new Browse()
Then I used the showOpenDialog method to show the JFileChooser called browser.
Then I used the getSelectedFile method to return the selection made in browser.

It all works perfectly, but it returns only the filename.
i.e. Instead of returning D:\lists\songs.txt it just returns songs.txt

Eranga · #8 (**permalink**) 05-25-2008, 11:39 AM

Try to use getCurrentDirectory() to find the initial directory there.

carderne · #9 (**permalink**) 05-25-2008, 01:35 PM

That only returns the immediate directory that the selected file is in.

i.e. If the selected file was: C:\files\lists\songs.txt
then getCurrentDirectory returns lists, and getSelectedFile returns songs.txt

Surely that isn't how it's suppose to be, because this makes it quite useless...

Eranga · #10 (**permalink**) 05-26-2008, 04:25 AM

Can I look at your code. I'm not sure what's going on there.

carderne · #11 (**permalink**) 05-26-2008, 09:42 AM

Sorry it's so much.
I wasn't sure what you wanted exactly...

Thanks again for your help.

Code:

package MusicMan;

public class Start extends javax.swing.JFrame
{
    Action ac = new Action(); //the Action class has all of the important methods

    public Start()
    {
        initComponents();
    }//dc
    
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {
        bindingGroup = new org.jdesktop.beansbinding.BindingGroup();

        btnImport = new javax.swing.JButton();
        btnPlaylist = new javax.swing.JButton();
        labelOutput = new javax.swing.JLabel();
        jScrollPane2 = new javax.swing.JScrollPane();
        list = new javax.swing.JList(ac.displayLists());
        labelPlaylists = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        output = new javax.swing.JList();
        btnEdit = new javax.swing.JButton();
        browse = new javax.swing.JButton();
        btnManual = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setBounds(new java.awt.Rectangle(10, 10, 10, 10));
        setMaximizedBounds(new java.awt.Rectangle(0, 1, 0, 1));

        org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, btnImport, org.jdesktop.beansbinding.ELProperty.create("MusicMan"), this, org.jdesktop.beansbinding.BeanProperty.create("title"));
        bindingGroup.addBinding(binding);

        btnImport.setText("Import Songs");
        btnImport.setToolTipText("Import songs from a text file");
        btnImport.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnImportActionPerformed(evt);
            }
        });

        btnPlaylist.setText("Add Playlist");
        btnPlaylist.setToolTipText("Select songs first");
        btnPlaylist.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnPlaylistActionPerformed(evt);
            }
        });

        labelOutput.setFont(new java.awt.Font("Courier New", 0, 12));
        labelOutput.setLabelFor(output);
        labelOutput.setText("Name                                  |  Artist                                |  Album                                 |  Date Added ");
        labelOutput.setBorder(javax.swing.BorderFactory.createEtchedBorder());

        list.setFont(new java.awt.Font("Courier New", 0, 12));
        list.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
        list.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                listMouseClicked(evt);
            }
        });
        jScrollPane2.setViewportView(list);

        labelPlaylists.setLabelFor(list);
        labelPlaylists.setText("Playlists");
        labelPlaylists.setBorder(javax.swing.BorderFactory.createEtchedBorder());

        output.setFont(new java.awt.Font("Courier New", 0, 12));
        jScrollPane1.setViewportView(output);

        btnEdit.setText("Edit Song Info");
        btnEdit.setToolTipText("Select songs first");
        btnEdit.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnEditActionPerformed(evt);
            }
        });

        browse.setText("Import iTunes Playlist");
        browse.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                browseActionPerformed(evt);
            }
        });

        btnManual.setText("Manual Song Add");
        btnManual.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnManualActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                            .addComponent(labelPlaylists, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jScrollPane2, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 111, Short.MAX_VALUE))
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(18, 18, 18)
                                .addComponent(labelOutput, javax.swing.GroupLayout.DEFAULT_SIZE, 1044, Short.MAX_VALUE))
                            .addGroup(layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 1052, Short.MAX_VALUE)))
                        .addContainerGap())
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(browse)
                        .addGap(18, 18, 18)
                        .addComponent(btnManual)
                        .addGap(18, 18, 18)
                        .addComponent(btnPlaylist)
                        .addGap(18, 18, 18)
                        .addComponent(btnEdit)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 421, Short.MAX_VALUE)
                        .addComponent(btnImport)
                        .addGap(173, 173, 173))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(browse)
                    .addComponent(btnPlaylist)
                    .addComponent(btnEdit)
                    .addComponent(btnManual)
                    .addComponent(btnImport))
                .addGap(37, 37, 37)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(labelPlaylists)
                    .addComponent(labelOutput))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 313, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(390, 390, 390))
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 692, Short.MAX_VALUE)
                        .addContainerGap())))
        );

        bindingGroup.bind();

        pack();
    }// </editor-fold>//GEN-END:initComponents

private void btnImportActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnImportActionPerformed
    ac.addMusicFromText("songs.txt");
    output.setListData(ac.showMusic(0));
}//GEN-LAST:event_btnImportActionPerformed

private void btnPlaylistActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnPlaylistActionPerformed
    output.setListData(ac.showMusic(ac.addPlaylist(output.getSelectedIndices())));
    list.setListData(ac.displayLists());
}//GEN-LAST:event_btnPlaylistActionPerformed

private void listMouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_listMouseClicked
    output.setListData(ac.showMusic(list.getSelectedIndex()));
}//GEN-LAST:event_listMouseClicked

private void btnEditActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnEditActionPerformed
    ac.edit(output.getSelectedIndex());
    output.setListData(ac.showMusic(0));
}//GEN-LAST:event_btnEditActionPerformed

private void browseActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_browseActionPerformed
    Browse br = new Browse();
    br.browser.showOpenDialog(null);
    ac.addMusicFromText(br.browser.getName(br.browser.getSelectedFile()));
    output.setListData(ac.showMusic(0));
}//GEN-LAST:event_browseActionPerformed

private void btnManualActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnManualActionPerformed
    SongEntry se = new SongEntry(new Start(), true);
    se.setVisible(true);
    ac.addMusic(se.nameEntry.getText(), se.artistEntry.getText(), se.albumEntry.getText());
    output.setListData(ac.showMusic(0));
}//GEN-LAST:event_btnManualActionPerformed

    public static void main(String args[])
    {
        java.awt.EventQueue.invokeLater(new Runnable()
        {
            public void run()
            {
                new Start().setVisible(true);
            }
        });
    }//main

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton browse;
    private javax.swing.JButton btnEdit;
    private javax.swing.JButton btnImport;
    private javax.swing.JButton btnManual;
    private javax.swing.JButton btnPlaylist;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JLabel labelOutput;
    private javax.swing.JLabel labelPlaylists;
    private javax.swing.JList list;
    javax.swing.JList output;
    private org.jdesktop.beansbinding.BindingGroup bindingGroup;
    // End of variables declaration//GEN-END:variables

}

Code:

package MusicMan;

public class Browse extends javax.swing.JInternalFrame {

    public Browse() {
        initComponents();
    }

    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        browser = new javax.swing.JFileChooser();

        browser.setFileHidingEnabled(false);
        browser.setDragEnabled(true);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(browser, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(browser, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(19, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents


    // Variables declaration - do not modify//GEN-BEGIN:variables
    public javax.swing.JFileChooser browser;
    // End of variables declaration//GEN-END:variables

}

carderne · #12 (**permalink**) 05-26-2008, 09:44 AM

The important stuff is in BOLD.

Eku · #13 (**permalink**) 05-26-2008, 09:45 AM

I used this command to get the file with the Current directory

Code:

filename=fileChooser.getSelectedFile();

I hope that helps.

Eranga · #14 (**permalink**) 05-26-2008, 09:49 AM

Yes it should works. But our friend says it not work. Seems something wrong with Browser implementation or else.

carderne · #15 (**permalink**) 05-26-2008, 09:54 AM

Hmm...
Quite strange then...

I think I'll make a new test prog, just with the essential JFileChooser and see if it works...

Eranga · #16 (**permalink**) 05-26-2008, 10:02 AM

Ya, that's better. Then you can compare two applications and find the difference.

Eku · #17 (**permalink**) 05-26-2008, 10:08 AM

hmmm. . . I cant seem to undestant the code. im sorry. Im a little sick. The return value of the .getSelectedFile() is in file data type. If you want to use it as string you should convert it toString first. Sorry if i cant give much help.

Code:

else if(command.equalsIgnoreCase("Save As")){
            result = fileChooser.showSaveDialog(this);
            if (result == JFileChooser.CANCEL_OPTION) {
                return;}
            filename=fileChooser.getSelectedFile();
            ext = fileChooser.getFileFilter();
            Save();
}

Here is a sample. i got the filename with the directory using getSelectedFile();
and got the extention using the getfilterfile. *Note: You must declare a filter if you want to filter the extensions. Then call my Function.

carderne · #18 (**permalink**) 05-26-2008, 02:58 PM

I used the getName method to convert it to a string...

What is getFileFilter for? It already returns the file extension (.txt).

I'm on my phone now, but later at my PC I'll try your code out. (and try a new one, so I can see where the problem might have been in my case...)

carderne · #19 (**permalink**) 05-26-2008, 04:15 PM

I just had a look at the Java API.

This is what it says about file filters:

Quote:

The file filter is used by the file chooser to filter out files from the user's view.

I don't think that's what I need...

Will still try your reccommendation later on.

carderne · #20 (**permalink**) 05-26-2008, 09:29 PM

I realised what the problem was. The getName() method only used the filename, not the entire path. So I changed it to just use getSelected() and keep it as a File type.