CODEWITHSUNDEEP
javaswing
Jatin
Jatin

Reputation: 31724

Right click to select text JTextPane

In my JTextPane, when i select the text and right click; It gives the option to copy text. Below is the code:

public LogPane() {
    super();
    JPopupMenu pop = new JPopupMenu();
    final LogPane l = this;
    JMenuItem copy = new JMenuItem("Copy      CTRL+C");
    copy.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            selected = l.getSelectedText();
            if(selected==null)
                return;
            StringSelection clipString = new StringSelection(selected);
            clipbd.setContents(clipString,clipString);
        }

    }); 
    pop.add(copy);
    copy.setEnabled(true);
}

So on right click, it gives the option to copy text. But what I want is that, when no text is selected and the user right clicks- Copy option should not be shown. How should the change be incorporated?

Upvotes: 3

Views: 2020

Answers (2)

Richard Neish
Richard Neish

Reputation: 8806

A PopupMenuListener should do the trick.

public LogPane() {
    super();
    JPopupMenu pop = new JPopupMenu();
    final LogPane l = this;
    final JMenuItem copy = new JMenuItem("Copy      CTRL+C");
    copy.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            selected = l.getSelectedText();
            if(selected==null)
                return;
            StringSelection clipString = new StringSelection(selected);
            clipbd.setContents(clipString,clipString);
        }

    }); 
    pop.add(copy);
    pop.addPopupMenuListener(new PopupMenuListener() {
        public void popupMenuCanceled(PopupMenuEvent e) {}
        public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {}
        public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
            copy.setEnabled(l.getSelectedText() != null);
        }
    });
}

Upvotes: 1

durron597
durron597

Reputation: 32323

You've shown the wrong portion of the code. The part of the code that matters is your MouseListener, i.e. what happens when you rightclick.

In that MouseEvent, you can check the selection of your JTextPane, using JTextComponent.getSelectedText(), i.e.

public void MouseClicked(MouseEvent me) {
    if(me.getButton() == MouseEvent.BUTTON2) {
         // This is the code you probably don't have yet
         // You may have to check this cast
         JTextComponent myComponent = (JTextComponent) me.getComponent();
         if (myComponent.getSelectedText() != null) {
             JPopupMenu theMenu = myComponent.getComponentPopupMenu();
             // Etc... you wrote this part already and said it works
         }
    }
}

Upvotes: 1

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