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1#!/usr/bin/env python
2#---------------------------------------------------------------------------
3# 11/9/2003 - Jeff Grimmett (grimmtooth@softhome.net
4#
5# o Updated for V2.5
6# o Mainloop is freezing up app.
7#
8
9"""
10This demo attempts to override the C++ MainLoop and implement it
11in Python. This is not part of the demo framework.
12
13
14 THIS FEATURE IS STILL EXPERIMENTAL...
15"""
16
17import time
18import wx
19
20#---------------------------------------------------------------------------
21
22class MyFrame(wx.Frame):
23
24 def __init__(self, parent, id, title):
25 wx.Frame.__init__(self, parent, id, title,
26 (100, 100), (160, 150))
27
28 self.Bind(wx.EVT_SIZE, self.OnSize)
29 self.Bind(wx.EVT_MOVE, self.OnMove)
30 self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
31 self.Bind(wx.EVT_IDLE, self.OnIdle)
32
33 self.count = 0
34
35 panel = wx.Panel(self, -1)
36 wx.StaticText(panel, -1, "Size:",
37 wx.DLG_PNT(panel, (4, 4)), wx.DefaultSize)
38 wx.StaticText(panel, -1, "Pos:",
39 wx.DLG_PNT(panel, (4, 16)), wx.DefaultSize)
40
41 wx.StaticText(panel, -1, "Idle:",
42 wx.DLG_PNT(panel, (4, 28)), wx.DefaultSize)
43
44 self.sizeCtrl = wx.TextCtrl(panel, -1, "",
45 wx.DLG_PNT(panel, (24, 4)),
46 wx.DLG_SZE(panel, (36, -1)),
47 wx.TE_READONLY)
48
49 self.posCtrl = wx.TextCtrl(panel, -1, "",
50 wx.DLG_PNT(panel, (24, 16)),
51 wx.DLG_SZE(panel, (36, -1)),
52 wx.TE_READONLY)
53
54 self.idleCtrl = wx.TextCtrl(panel, -1, "",
55 wx.DLG_PNT(panel, (24, 28)),
56 wx.DLG_SZE(panel, (36, -1)),
57 wx.TE_READONLY)
58
59
60 def OnCloseWindow(self, event):
61 app.keepGoing = False
62 self.Destroy()
63
64 def OnIdle(self, event):
65 self.idleCtrl.SetValue(str(self.count))
66 self.count = self.count + 1
67
68 def OnSize(self, event):
69 size = event.GetSize()
70 self.sizeCtrl.SetValue("%s, %s" % (size.width, size.height))
71 event.Skip()
72
73 def OnMove(self, event):
74 pos = event.GetPosition()
75 self.posCtrl.SetValue("%s, %s" % (pos.x, pos.y))
76
77
78
79#---------------------------------------------------------------------------
80
81class MyApp(wx.App):
82 def MainLoop(self):
83 # This outer loop determines when to exit the application, for
84 # this example we let the main frame reset this flag when it
85 # closes.
86 while self.keepGoing:
87 # At this point in the outer loop you could do whatever you
88 # implemented your own MainLoop for. It should be quick and
89 # non-blocking, otherwise your GUI will freeze. For example,
90 # call Fnorb's reactor.do_one_event(0), etc.
91
92 # call_your_code_here()
93
94
95 # This inner loop will process any GUI events until there
96 # are no more waiting.
97 while self.Pending():
98 self.Dispatch()
99
100 # Send idle events to idle handlers. You may want to throttle
101 # this back a bit so there is not too much CPU time spent in
102 # the idle handlers. For this example, I'll just snooze a
103 # little...
104 time.sleep(0.25)
105 self.ProcessIdle()
106
107
108
109 def OnInit(self):
110 frame = MyFrame(None, -1, "This is a test")
111 frame.Show(True)
112 self.SetTopWindow(frame)
113
114 self.keepGoing = True
115
116 return True
117
118
119app = MyApp(False)
120app.MainLoop()
121
122
123
124
125