How to change the background color of a Dialog?

[Biliang Zhou]

This one is really tricky.

If I generate a dialog from JOptionPane, can I change the background color of this dialog? I wonder whether this should be done on the JOptionPane or on the dialog after it is generated. Have tried but didn't get the expected result.

What's even more tricky is, I wonder if it is possible to change the color of the buttons on that dialog -- I mean the default button "OK" or any customized buttons. Since we get the button for free, how can we even get a reference to it...

Would anybody advise on this issue? Many thanks.

[Michael Dunn]

see if this suits

    
import javax.swing.*;
import java.awt.*;
class Testing
{
  public Testing()
  {
    JOptionPane optionPane = new JOptionPane("Enter File Details:");
    optionPane.setOptionType(JOptionPane.DEFAULT_OPTION);
    optionPane.setWantsInput(true);
    JDialog dialog = optionPane.createDialog(null, "File Details");
    changeColor(dialog.getComponents());
    dialog.setModal(true);
    dialog.setVisible(true);
 
    System.exit(0);
  }
  public void changeColor(Component[] comp)
  {
    for(int x = 0; x < comp.length; x++)
    {
      if(comp[x] instanceof Container) changeColor(((Container)comp[x]).getComponents());
      try
      {
        comp[x].setBackground(Color.ORANGE);
      }
      catch(Exception e){}
    }
  }
  public static void main(String[] args){new Testing();}
}

[Biliang Zhou]

Man, you are really the problem-cracker!!!

And I added several lines so that I can filter components with a given property:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

if(comp[x] instanceof JButton &&((JButton)comp[x]).getText().equals("OK"))

{comp[x].setBackground(oKButtonColor);}

if(comp[x] instanceof JButton &&((JButton)comp[x]).getText().equals("Cancel"))

{comp[x].setBackground(cancelButtonColor);}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

I used short circuit "&&" so that if the component is not a JButton, the type casting won't take place.

Now I have been able to set a background color to the whole GUI, while setting specific colors to certain components.

Thank you!
[ November 02, 2006: Message edited by: Biliang Zhou ]