Re: ProgressBar

On Sun, 19 Dec 2004 19:32:50 +0200 (SAST)
"Paul Malherbe" <paul@xxxxxxxxxxxxx> wrote:

> Hi
> 
> I would appreciate some help on the following problem I am
> experiencing.
> 
> I am migrating a suite from Tkinter to PyGtk and cannot update a
> Progressbar within a loop e.g.
> 
> import pygtk
> pygtk.require('2.0')
> import gtk
> 
> class ProgressBar:
>     def __init__(self, scrn, max):
>         align = gtk.Alignment(0.5, 0.5, 1, 0)
>         align.show()
>         scrn.add(align)
>         self.progBar = gtk.ProgressBar()
>         self.progBar.set_size_request(100, 20)
>         self.progBar.set_orientation(0)  # left to right
>         self.progBar.set_fraction(0)
>         self.progBar.show()
>         align.add(self.progBar)
>         self.max = max
> 
>     def increment(self, done):
>         frac = float((done * 100.0) / self.max)
>         self.progBar.set_text("%s (%s%s)" % \
>            ("Updating Files", str(frac), "%"))
>         self.progBar.set_fraction(frac/100.0)
> 
> if  __name__ == "__main__":
>     def start(wd):
>         pb = ProgressBar(box, 1000)
>         for x in range(1000):
>             ok = pb.increment(x)
>     win = gtk.Window()
>     win.show()
>     box = gtk.VBox(gtk.FALSE, 0)
>     box.show()
>     win.add(box)
>     but = gtk.Button("start")
>     but.connect("clicked", start)
>     box.add(but)
>     but.show()
>     gtk.main()

Try adding this to the end of the increment function:

        while gtk.events_pending():
            gtk.main_iteration(gtk.FALSE)

Regards,

Chris
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