Graphics, AWT, Swing II part

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 Graphics, AWT, Swing

Q: I m resetting the TitleBorder s title via setTitle, but no change occurs....

I m trying to make a dialog box containing a panel whose TitleBorder s text

dynamically reflects the function of the list box within it. The title text and the list box

contents should change according to the buttons pressed elsewhere in the dialog

box. I m resetting the TitleBorder s title via setTitle, but no change occurs. Do I need

to update the dialog? If so, how do I do this?

Answer: Yes, you need to update the dialog. 

How? Call the validate() and invalidate () methods

 Q: everytime you create a dialog object, the dialog pops up in the upper left

corner of the screen. Now I want it to be automatically placed in the center of the

application s frame.

Answer: private void center() {

   Dimension screenDim = Toolkit.getDefaultToolkit().getScreenSize();

   setLocation( ( ( screenDim.width   getSize().width ) / 2 ),

   ( ( screenDim.height   getSize().height ) / 2) );

}

You can call this anytime after calling pack() on the JDialog, before

setVisible().

Dave Neuendorf

Q: How can i disable the right click on the label?

I have a JTree and a JPopup: i ve forced the code to be able to select the node with

a right click and show the popup. The problem is that i can right click on the popup

labels to select them, but i d like to select them only with a left click. How can i

disable the right click on the label? Can somebody help me please?

Answer: You can add in an if loop that only executes if the left mouse button is down

using code like the following:

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