wxPython/demo/Timer.py

   1 #
   2 # 1/11/2004 - Jeff Grimmett (grimmtooth@softhome.net)
   3 #
   4 # o It appears that wx.Timer has an issue where if you use
   5 #
   6 #       self.timer = wx.Timer(self, -1)
   7 #
   8 #   to create it, then
   9 #
  10 #       self.timer.GetId()
  11 #
  12 #   doesn't seem to return anything meaningful. In the demo, doing this
  13 #   results in only one of the two handlers being called for both timers.
  14 #   This means that
  15 #
  16 #       self.Bind(wx.EVT_TIMER, self.onTimer, self.timer)
  17 #
  18 #   doesn't work right. However, using
  19 #
  20 #       self.timer = wx.Timer(self, wx.NewId())
  21 #
  22 #   makes it work OK. I believe this is a bug, but wiser heads than mine
  23 #   should determine this.
  24 #
  25
  26 import  time
  27 import  wx
  28
  29 #---------------------------------------------------------------------------
  30
  31 ## For your convenience; an example of creating your own timer class.
  32 ##
  33 ## class TestTimer(wx.Timer):
  34 ##     def __init__(self, log = None):
  35 ##         wx.Timer.__init__(self)
  36 ##         self.log = log
  37 ##     def Notify(self):
  38 ##         wx.Bell()
  39 ##         if self.log:
  40 ##             self.log.WriteText('beep!\n')
  41
  42 #---------------------------------------------------------------------------
  43
  44 class TestTimerWin(wx.Panel):
  45     def __init__(self, parent, log):
  46         wx.Panel.__init__(self, parent, -1)
  47         self.log = log
  48
  49         wx.StaticText(self, -1, "This is a timer example", (15, 30))
  50         startBtn = wx.Button(self, -1, ' Start ', (15, 75), wx.DefaultSize)
  51         stopBtn = wx.Button(self, -1, ' Stop ', (115, 75), wx.DefaultSize)
  52
  53         self.timer = wx.Timer(self, wx.NewId())
  54         self.timer2 = wx.Timer(self, wx.NewId())
  55
  56         self.Bind(wx.EVT_BUTTON, self.OnStart, startBtn)
  57         self.Bind(wx.EVT_BUTTON, self.OnStop, stopBtn)
  58         self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
  59         self.Bind(wx.EVT_TIMER, self.OnTimer2, self.timer2)
  60
  61     def OnStart(self, event):
  62         self.timer.Start(1000)
  63         self.timer2.Start(1500)
  64
  65     def OnStop(self, event):
  66         self.timer.Stop()
  67         self.timer2.Stop()
  68
  69     def OnTimer(self, event):
  70         wx.Bell()
  71         if self.log:
  72             self.log.WriteText('beep!\n')
  73
  74     def OnTimer2(self, event):
  75         wx.Bell()
  76         if self.log:
  77             self.log.WriteText('beep 2!\n')
  78
  79 #---------------------------------------------------------------------------
  80
  81 def runTest(frame, nb, log):
  82     win = TestTimerWin(nb, log)
  83     return win
  84
  85 #---------------------------------------------------------------------------
  86
  87
  88
  89 overview = """\
  90 The wx.Timer class allows you to execute code at specified intervals from
  91 within the wxPython event loop. Timers can be one-shot or repeating.
  92
  93 """
  94
  95
  96
  97
  98 if __name__ == '__main__':
  99     import sys,os
 100     import run
 101     run.main(['', os.path.basename(sys.argv[0])])