utils/wxPython/demo/PythonEvents.py

   1
   2 from wxPython.wx import *
   3 import sys
   4
   5 #----------------------------------------------------------------------
   6
   7 myEVT_BUTTON_CLICKPOS = 5015
   8
   9 def EVT_BUTTON_CLICKPOS(win, id, func):
  10     win.Connect(id, -1, myEVT_BUTTON_CLICKPOS, func)
  11
  12
  13
  14 class MyEvent(wxPyCommandEvent):
  15     def __init__(self, evtType, id):
  16         wxPyCommandEvent.__init__(self, evtType, id)
  17         self.myVal = None
  18
  19     #def __del__(self):
  20     #    print '__del__'
  21     #    wxPyCommandEvent.__del__(self)
  22
  23     def SetMyVal(self, val):
  24         self.myVal = val
  25
  26     def GetMyVal(self):
  27         return self.myVal
  28
  29
  30
  31 class MyButton(wxButton):
  32     def __init__(self, parent, id, txt, pos):
  33         wxButton.__init__(self, parent, id, txt, pos)
  34         EVT_LEFT_DOWN(self, self.OnLeftDown)
  35
  36     def OnLeftDown(self, event):
  37         pt = event.GetPosition()
  38         evt = MyEvent(myEVT_BUTTON_CLICKPOS, self.GetId())
  39         evt.SetMyVal(pt)
  40         #print id(evt), sys.getrefcount(evt)
  41         self.GetEventHandler().ProcessEvent(evt)
  42         #print id(evt), sys.getrefcount(evt)
  43         event.Skip()
  44
  45
  46
  47 class TestPanel(wxPanel):
  48     def __init__(self, parent, log):
  49         wxPanel.__init__(self, parent, -1)
  50         self.log = log
  51
  52         b = MyButton(self, -1, " Click me ", wxPoint(30,30))
  53         EVT_BUTTON(self, b.GetId(), self.OnClick)
  54         EVT_BUTTON_CLICKPOS(self, b.GetId(), self.OnMyEvent)
  55
  56         wxStaticText(self, -1, "Please see the Overview and Demo Code for details...",
  57                      wxPoint(30, 80))
  58
  59
  60     def OnClick(self, event):
  61         self.log.WriteText("OnClick\n")
  62
  63     def OnMyEvent(self, event):
  64         #print id(event), sys.getrefcount(event)
  65         self.log.WriteText("MyEvent: %s\n" % (event.GetMyVal(), ) )
  66
  67
  68 #----------------------------------------------------------------------
  69
  70 def runTest(frame, nb, log):
  71     win = TestPanel(nb, log)
  72     return win
  73
  74 #----------------------------------------------------------------------
  75
  76
  77
  78
  79 overview = """\
  80 This demo is a contrived example of defining an event class in wxPython and sending it up the containment heirachy for processing.
  81 """
  82
  83
  84
  85