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[wxWidgets.git] / wxPython / demo / PythonEvents.py
1
2 import sys
3
4 import wx
5
6 #----------------------------------------------------------------------
7
8 # This shows the new 'official' way to do custom events as derived
9 # from the wxPython 2.5 migration guide.
10
11 #######################################################\
12 # *** Old and busted *** |
13 # |
14 # myEVT_BUTTON_CLICKPOS = wx.NewEventType() |
15 # |
16 # def EVT_BUTTON_CLICKPOS(win, id, func): |
17 # win.Connect(id, -1, myEVT_BUTTON_CLICKPOS, func) |
18 #######################################################/
19
20 #############################\
21 # *** The new Hottness *** |
22 #############################/
23 myEVT_BUTTON_CLICKPOS = wx.NewEventType()
24 EVT_BUTTON_CLICKPOS = wx.PyEventBinder(myEVT_BUTTON_CLICKPOS, 1)
25
26 #----------------------------------------------------------------------
27
28
29 class MyEvent(wx.PyCommandEvent):
30 def __init__(self, evtType, id):
31 wx.PyCommandEvent.__init__(self, evtType, id)
32 self.myVal = None
33
34 #def __del__(self):
35 # print '__del__'
36 # wx.PyCommandEvent.__del__(self)
37
38 def SetMyVal(self, val):
39 self.myVal = val
40
41 def GetMyVal(self):
42 return self.myVal
43
44
45 class MyButton(wx.Button):
46 def __init__(self, parent, id, txt, pos):
47 wx.Button.__init__(self, parent, id, txt, pos)
48 self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
49
50 def OnLeftDown(self, event):
51 pt = event.GetPosition()
52 evt = MyEvent(myEVT_BUTTON_CLICKPOS, self.GetId())
53 evt.SetMyVal(pt)
54 #print id(evt), sys.getrefcount(evt)
55 self.GetEventHandler().ProcessEvent(evt)
56 #print id(evt), sys.getrefcount(evt)
57 event.Skip()
58
59
60
61 class TestPanel(wx.Panel):
62 def __init__(self, parent, log):
63 wx.Panel.__init__(self, parent, -1)
64 self.log = log
65
66 b = MyButton(self, -1, " Click me ", (30,30))
67 self.Bind(wx.EVT_BUTTON, self.OnClick, id=b.GetId())
68
69 # This is our custom event binder created above.
70 self.Bind(EVT_BUTTON_CLICKPOS, self.OnMyEvent, id=b.GetId())
71
72 wx.StaticText(
73 self, -1, "Please see the Overview and Demo Code for details...",
74 (30, 80)
75 )
76
77
78 def OnClick(self, event):
79 self.log.WriteText("OnClick\n")
80
81 def OnMyEvent(self, event):
82 #print id(event), sys.getrefcount(event)
83 self.log.WriteText("MyEvent: %s\n" % (event.GetMyVal(), ) )
84
85
86 #----------------------------------------------------------------------
87
88 def runTest(frame, nb, log):
89 win = TestPanel(nb, log)
90 return win
91
92 #----------------------------------------------------------------------
93
94
95 overview = """\
96 This demo is a contrived example of defining an event class in wxPython and
97 sending it up the containment hierarchy for processing.
98
99 V2.5 note: this demo also shows the new style of creating event binders that
100 is required if you used the *.Bind() method of setting up event handlers.
101 """
102
103
104 if __name__ == '__main__':
105 import sys,os
106 import run
107 run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
108