wxpython EVT_TEXT
1 import wx
2
3 class PromptingComboBox(wx.ComboBox) :
4 def __init__(self, parent, value, choices=[], style=0, **par):
5 wx.ComboBox.__init__(self, parent, wx.ID_ANY, value, style=style|wx.CB_DROPDOWN, choices=choices, **par)
6 self.choices = choices
7 self.Bind(wx.EVT_TEXT, self.EvtText)
8 self.Bind(wx.EVT_CHAR, self.EvtChar)
9 self.Bind(wx.EVT_COMBOBOX, self.EvtCombobox)
10 self.ignoreEvtText = False
11
12 def EvtCombobox(self, event):
13 self.ignoreEvtText = True
14 event.Skip()
15
16 def EvtChar(self, event):
17 if event.GetKeyCode() == 8:
18 self.ignoreEvtText = True
19 event.Skip()
20
21 def EvtText(self, event):
22 if self.ignoreEvtText:
23 self.ignoreEvtText = False
24 return
25 currentText = event.GetString()
26 found = False
27 for choice in self.choices :
28 if choice.startswith(currentText):
29 self.ignoreEvtText = True
30 self.SetValue(choice)
31 self.SetInsertionPoint(len(currentText))
32 self.SetMark(len(currentText), len(choice))
33 found = True
34 break
35 if not found:
36 event.Skip()
37
38 class TrialPanel(wx.Panel):
39 def __init__(self, parent):
40 wx.Panel.__init__(self, parent, wx.ID_ANY)
41
42 choices = ['grandmother', 'grandfather', 'cousin', 'aunt', 'uncle', 'grandson', 'granddaughter']
43 for relative in ['mother', 'father', 'sister', 'brother', 'daughter', 'son']:
44 choices.extend(self.derivedRelatives(relative))
45
46 cb = PromptingComboBox(self, "default value", choices, style=wx.CB_SORT)
47
48 def derivedRelatives(self, relative):
49 return [relative, 'step' + relative, relative + '-in-law']
50
51
52 if __name__ == '__main__':
53 app = wx.App()
54 frame = wx.Frame (None, -1, 'Demo PromptingComboBox Control', size=(400, 50))
55 TrialPanel(frame)
56 frame.Show()
57 app.MainLoop()