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8bf5d46e RD |
1 | """ |
2 | This demo attempts to override the C++ MainLoop and implement it | |
3 | in Python. This is not part of the demo framework. | |
4 | ||
5 | ||
6 | THIS FEATURE IS STILL EXPERIMENTAL... | |
7 | """ | |
8 | ||
9 | ||
10 | from wxPython.wx import * | |
11 | import time | |
12 | ||
13 | ||
14 | #--------------------------------------------------------------------------- | |
15 | ||
16 | class MyFrame(wxFrame): | |
17 | ||
18 | def __init__(self, parent, id, title): | |
19 | wxFrame.__init__(self, parent, id, title, | |
20 | wxPoint(100, 100), wxSize(160, 150)) | |
21 | ||
22 | EVT_SIZE(self, self.OnSize) | |
23 | EVT_MOVE(self, self.OnMove) | |
24 | EVT_CLOSE(self, self.OnCloseWindow) | |
25 | EVT_IDLE(self, self.OnIdle) | |
26 | ||
27 | self.count = 0 | |
28 | ||
29 | panel = wxPanel(self, -1) | |
30 | wxStaticText(panel, -1, "Size:", | |
31 | wxDLG_PNT(panel, wxPoint(4, 4)), wxDefaultSize) | |
32 | wxStaticText(panel, -1, "Pos:", | |
33 | wxDLG_PNT(panel, wxPoint(4, 16)), wxDefaultSize) | |
34 | ||
35 | wxStaticText(panel, -1, "Idle:", | |
36 | wxDLG_PNT(panel, wxPoint(4, 28)), wxDefaultSize) | |
37 | ||
38 | self.sizeCtrl = wxTextCtrl(panel, -1, "", | |
39 | wxDLG_PNT(panel, wxPoint(24, 4)), | |
40 | wxDLG_SZE(panel, wxSize(36, -1)), | |
41 | wxTE_READONLY) | |
42 | ||
43 | self.posCtrl = wxTextCtrl(panel, -1, "", | |
44 | wxDLG_PNT(panel, wxPoint(24, 16)), | |
45 | wxDLG_SZE(panel, wxSize(36, -1)), | |
46 | wxTE_READONLY) | |
47 | ||
48 | self.idleCtrl = wxTextCtrl(panel, -1, "", | |
49 | wxDLG_PNT(panel, wxPoint(24, 28)), | |
50 | wxDLG_SZE(panel, wxSize(36, -1)), | |
51 | wxTE_READONLY) | |
52 | ||
53 | ||
54 | def OnCloseWindow(self, event): | |
55 | app.keepGoing = false | |
56 | self.Destroy() | |
57 | ||
58 | def OnIdle(self, event): | |
59 | self.idleCtrl.SetValue(str(self.count)) | |
60 | self.count = self.count + 1 | |
61 | ||
62 | def OnSize(self, event): | |
63 | size = event.GetSize() | |
64 | self.sizeCtrl.SetValue("%s, %s" % (size.width, size.height)) | |
65 | event.Skip() | |
66 | ||
67 | def OnMove(self, event): | |
68 | pos = event.GetPosition() | |
69 | self.posCtrl.SetValue("%s, %s" % (pos.x, pos.y)) | |
70 | ||
71 | ||
72 | ||
73 | #--------------------------------------------------------------------------- | |
74 | ||
75 | class MyApp(wxApp): | |
76 | def MainLoop(self): | |
77 | # This outer loop determines when to exit the application, for | |
78 | # this example we let the main frame reset this flag when it | |
79 | # closes. | |
80 | while self.keepGoing: | |
81 | # At this point in the outer loop you could do whatever you | |
82 | # implemented your own MainLoop for. It should be quick and | |
83 | # non-blocking, otherwise your GUI will freeze. For example, | |
84 | # call Fnorb's reactor.do_one_event(0), etc. | |
85 | ||
86 | # call_your_code_here() | |
87 | ||
88 | ||
89 | # This inner loop will process any GUI events until there | |
90 | # are no more waiting. | |
91 | while self.Pending(): | |
92 | self.Dispatch() | |
93 | ||
94 | # Send idle events to idle handlers. You may want to throtle | |
95 | # this back a bit so there is not too much CPU time spent in | |
96 | # the idle handlers. For this example, I'll just snooze a | |
97 | # little... | |
98 | time.sleep(0.25) | |
99 | self.ProcessIdle() | |
100 | ||
101 | ||
102 | ||
103 | def OnInit(self): | |
104 | frame = MyFrame(NULL, -1, "This is a test") | |
105 | frame.Show(true) | |
106 | self.SetTopWindow(frame) | |
107 | ||
108 | self.keepGoing = true | |
109 | ||
110 | return true | |
111 | ||
112 | ||
113 | app = MyApp(0) | |
114 | app.MainLoop() | |
115 | ||
116 | ||
117 | ||
118 | ||
119 |