Re: [Jython-users] Threads

[D-Man <ds...@ri...>]

On Thu, Jul 19, 2001 at 03:57:38PM +0200, Kevin McNamee wrote:
| 
| I am trying to use threads so that I can revalidate some panes while
| performing a series of long tasks, i.e.
| 
| long task
| update & revalidate pane
| long task
| update & revalidate pane
| etc.

Ok.  You have this loop in a thread (some subclass of
java.lang.Thread).  When you want to update the GUI you update it via
the SwingUtilities class.  Ex :

class MyThread( java.lang.Thread ) :
    def run( self ) :
        for ... :
            ...

            # now update the GUI,  create an java.lang.Runnable that
            # does the work
            class updater( java.lang.Runnable ) :
                def run( self ) :
                    <update the gui here>

            if javax.swing.SwingUtilities.isEventDispatchThread() :
                # we are already in the AWT_EventQueue thread, it is
                # safe to touch the GUI
                updater().run()
            else :
                # request that the updater be run in the
                # AWT_EventQueue thread
                javax.swing.SwingUtilities.invokeLater( updater() )



HTH,
-D