Java GUI problem

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  • babai678
    New Member
    • Oct 2007
    • 5
    #1

    Java GUI problem

    Hi,

    I have built a GUI with java swing on linux env.Within that there is a small rectangular area of green color. The problem is, any other linux window coming infront of that very rect. area , is changing its color.Evanif any other window is covering a part of it, is changing the color of that part of that very area.

    Can someone pls help me out to figure out where the problem lies along with possible solution.

    babai
    Tags: None
    • r035198x
      MVP
      • Sep 2006
      • 13225
      #2
      Originally posted by babai678
      Hi,

      I have built a GUI with java swing on linux env.Within that there is a small rectangular area of green color. The problem is, any other linux window coming infront of that very rect. area , is changing its color.Evanif any other window is covering a part of it, is changing the color of that part of that very area.

      Can someone pls help me out to figure out where the problem lies along with possible solution.

      babai
      What is that small rectangular area of green color? A JFrame?
      Can we see the code you used?

        Comment

        • babai678
          New Member
          • Oct 2007
          • 5
          #3
          Originally posted by r035198x
          What is that small rectangular area of green color? A JFrame?
          Can we see the code you used?

          NO, its a JPanel.
          The code associated with that is quite big and scattered here and there.So , don't really know how to give it here.

            Comment

            • JosAH
              Recognized Expert MVP
              • Mar 2007
              • 11453
              #4
              Originally posted by babai678
              NO, its a JPanel.
              The code associated with that is quite big and scattered here and there.So , don't really know how to give it here.
              Do you perform some sort of calculations in the paintComponent method of the
              JPanel that changes a Color value?

              kind regards,

              Jos

                Comment

                • babai678
                  New Member
                  • Oct 2007
                  • 5
                  #5
                  Originally posted by JosAH
                  Do you perform some sort of calculations in the paintComponent method of the
                  JPanel that changes a Color value?

                  kind regards,

                  Jos
                  In the paintComponent ( ) calculation are made only regarding the size of the area.
                  Actually, depending on a particular variable the color is determined and then only the paintComponent( ) is called.

                    Comment

                    • JosAH
                      Recognized Expert MVP
                      • Mar 2007
                      • 11453
                      #6
                      Originally posted by babai678
                      In the paintComponent ( ) calculation are made only regarding the size of the area.
                      Actually, depending on a particular variable the color is determined and then only the paintComponent( ) is called.
                      Is that "depending on a particular variable the color is determined" calculation
                      performed in the "paint()" method?

                      Colors are not supposed to change "automagica lly" some piece of code is
                      responsible for the change. The behaviour you described seems to be performed
                      initiated from the AWT thread.

                      kind regards,

                      Jos

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