Edit Jtable in an unfocused window

Question

I created my own WYSIWYG editor, which consists of a design window and a tool palette window. The project window is a JFrame, and the tool palette is a JDialog with FocusableWindowState set to false. However, by switching FocusableWindowState to false, I can no longer edit cells in JTable in the window of my tool palette. Changing it to true allows me to edit cells.

Here is my sample code:

JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setBounds(0, 0, 1024, 768); JDialog paletteWindow = new JDialog(frame, false); paletteWindow.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE); paletteWindow.setResizable(false); paletteWindow.setFocusableWindowState(false); paletteWindow.setBounds(1024, 0, 320, 768); JTable grid = new JTable(new DefaultTableModel(new String[] {"Name", "Value"}, 5)); paletteWindow.getContentPane().add(new JScrollPane(grid)); frame.setVisible(true); paletteWindow.setVisible(true); 

How can I edit cells even if FocusableWindowState is set to false?

Answer 1

I found the answer to my question, although it may not meet all the needs. I used KeyEventDispatcher to send key events from the focused frame to the editor of the editing editor. Here is my sample code:

 JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setBounds(0, 0, 1024, 768); JDialog paletteWindow = new JDialog(frame, false); paletteWindow.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE); paletteWindow.setResizable(false); paletteWindow.setFocusableWindowState(false); paletteWindow.setBounds(1024, 0, 320, 768); JTable grid = new JTable(new DefaultTableModel(new String[] {"Name", "Value"}, 5)) { private KeyEventDispatcher dispatcher; @Override public Component getEditorComponent() { final Component c = super.getEditorComponent(); if (dispatcher == null) { dispatcher = new KeyEventDispatcher() { public boolean dispatchKeyEvent(KeyEvent e) { e.setSource(c); for (KeyListener keyListener : c.getKeyListeners()) { if (e.getID() == KeyEvent.KEY_PRESSED) { keyListener.keyPressed(e); } else if (e.getID() == KeyEvent.KEY_RELEASED) { keyListener.keyReleased(e); } else if (e.getID() == KeyEvent.KEY_TYPED) { keyListener.keyTyped(e); } } return false; } }; KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventDispatcher(dispatcher); } return c; } @Override public void removeEditor() { if (dispatcher != null) { KeyboardFocusManager.getCurrentKeyboardFocusManager().removeKeyEventDispatcher(dispatcher); dispatcher = null; } super.removeEditor(); } }; paletteWindow.getContentPane().add(new JScrollPane(grid)); frame.setVisible(true); paletteWindow.setVisible(true);