John Salerno wrote:
> I'd be curious to know if this works any differently on other
> computers/platforms or while other things are happening in the
> background. I can't tell if it's the Timer object that isn't keep
> accurate time (although a test with time.time() seems to show that it
> is), or if I'm just messing up my algorithm to fill the progress bar. If
> I put in 10 seconds, the progress bar will be fully filled at the end,
> but if you put 30, it doesn't. As the number gets higher, the less the
> bar gets filled when it's done running. (52 seconds only fills half the
> bar at the end!)
>
> Hopefully someone can look at my logic (mostly in the OnTimer method)
> and see right away how I'm screwing this up.
>
> Thanks.
>
> -------------------------
>
> import wx
>
>
> class MyTimer(wx.Frame):
>
> def __init__(self):
> wx.Frame.__init__(self, None, wx.ID_ANY,
> style=wx.DEFAULT_FRAME_STYLE ^ wx.RESIZE_BORDER)
> panel = wx.Panel(self)
>
> mainSizer = wx.BoxSizer(wx.VERTICAL)
> inputSizer = wx.BoxSizer(wx.HORIZONTAL)
>
> self.minutesPassed = 1
> self.progress = wx.Gauge(panel, wx.ID_ANY, 100, size=(300, 20))
> self.status = wx.StaticText(panel, wx.ID_ANY, 'Enter a time.')
> prompt = wx.StaticText(panel, wx.ID_ANY, 'Time to wait:')
> self.input = wx.TextCtrl(panel, wx.ID_ANY, '30', size=(20, 20))
> self.start = wx.Button(panel, wx.ID_ANY, 'Start')
> self.reset = wx.Button(panel, wx.ID_ANY, 'Reset')
> self.reset.Disable()
> self.timer = wx.Timer(self)
>
> mainSizer.Add(self.progress, flag=wx.ALIGN_CENTER | wx.ALL ^
> wx.BOTTOM,
> border=10)
> mainSizer.Add(self.status, flag=wx.ALIGN_CENTER | wx.ALL,
> border=10)
> mainSizer.Add(inputSizer, flag=wx.ALIGN_CENTER | wx.BOTTOM,
> border=10)
> inputSizer.Add(prompt, flag=wx.ALIGN_CENTER)
> inputSizer.Add(self.input, flag=wx.ALIGN_CENTER | wx.LEFT |
> wx.RIGHT,
> border=5)
> inputSizer.Add(self.start, flag=wx.ALIGN_CENTER)
> inputSizer.Add(self.reset, flag=wx.ALIGN_CENTER)
>
> self.Bind(wx.EVT_TEXT_ENTER, self.OnStart, self.input)
> self.Bind(wx.EVT_BUTTON, self.OnStart, self.start)
> self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
> self.Bind(wx.EVT_BUTTON, self.OnReset, self.reset)
>
> panel.SetSizer(mainSizer)
> mainSizer.Fit(self)
>
> def OnStart(self, event):
> self.time = int(self.input.GetValue())
> self.countdown = self.time - 1
> self.start.Disable()
> self.reset.Enable()
> self.input.Disable()
> self.status.SetLabel('%s minutes remaining.' % self.time)
> self.timer.Start(1000)
>
> def OnReset(self, event):
> self.input.Clear()
> self.status.SetLabel('Enter a new time.')
> self.progress.SetValue(0)
> self.input.Enable()
> self.minutesPassed = 1
>
> def OnTimer(self, event):
> if self.countdown != 0:
> #print self.minutesPassed, self.countdown
> self.progress.SetValue(self.minutesPassed * (100 / self.time))
> self.status.SetLabel('%s minutes remaining.' % self.countdown)
> self.minutesPassed += 1
> self.countdown -= 1
> else:
> self.progress.SetValue(self.minutesPassed * (100 / self.time))
> self.status.SetLabel('%s minutes have elapsed.' % self.time)
>
>
> class MyApp(wx.App):
>
> def OnInit(self):
> frame = MyTimer()
> self.SetTopWindow(frame)
> frame.Show()
> return True
>
>
> if __name__ == '__main__':
> app = MyApp(False)
> app.MainLoop()
Integer arithmetic. Try changing the "100" to "100.0" and you'll see it
works flawlessly.
regards
Steve
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