wxPython/demo/wxListBox.py

   1
   2 from wxPython.wx import *
   3
   4 import string
   5
   6 #---------------------------------------------------------------------------
   7
   8 class wxFindPrefixListBox(wxListBox):
   9     def __init__(self, parent, id, pos=wxDefaultPosition, size=wxDefaultSize,
  10                  choices=[], style=0, validator=wxDefaultValidator):
  11         wxListBox.__init__(self, parent, id, pos, size, choices, style, validator)
  12         self.typedText = ''
  13         EVT_KEY_UP(self, self.OnKey)
  14
  15
  16     def FindPrefix(self, prefix):
  17         if prefix:
  18             prefix = string.lower(prefix)
  19             length = len(prefix)
  20             for x in range(self.Number()):
  21                 text = self.GetString(x)
  22                 text = string.lower(text)
  23                 if text[:length] == prefix:
  24                     return x
  25         return -1
  26
  27
  28     def OnKey(self, evt):
  29         key = evt.GetKeyCode()
  30         if key >= 32 and key <= 127:
  31             self.typedText = self.typedText + chr(key)
  32             item = self.FindPrefix(self.typedText)
  33             if item != -1:
  34                 self.SetSelection(item)
  35
  36         elif key == WXK_BACK:   # backspace removes one character and backs up
  37             self.typedText = self.typedText[:-1]
  38             if not self.typedText:
  39                 self.SetSelection(0)
  40             else:
  41                 item = self.FindPrefix(self.typedText)
  42                 if item != -1:
  43                     self.SetSelection(item)
  44
  45         else:
  46             evt.Skip()
  47
  48
  49 #---------------------------------------------------------------------------
  50
  51 class TestListBox(wxPanel):
  52     def __init__(self, parent, log):
  53         self.log = log
  54         wxPanel.__init__(self, parent, -1)
  55
  56         sampleList = ['zero', 'one', 'two', 'three', 'four', 'five',
  57                       'six', 'seven', 'eight', 'nine', 'ten', 'eleven',
  58                       'twelve', 'thirteen', 'fourteen']
  59
  60         wxStaticText(self, -1, "This example uses the wxListBox control.",
  61                                wxPoint(45, 10))
  62
  63         wxStaticText(self, -1, "Select one:", wxPoint(15, 50), wxSize(65, 18))
  64         self.lb1 = wxListBox(self, 60, wxPoint(80, 50), wxSize(80, 120),
  65                        sampleList, wxLB_SINGLE)
  66         EVT_LISTBOX(self, 60, self.EvtListBox)
  67         EVT_LISTBOX_DCLICK(self, 60, self.EvtListBoxDClick)
  68         EVT_RIGHT_UP(self.lb1, self.EvtRightButton)
  69         self.lb1.SetSelection(3)
  70
  71
  72         wxStaticText(self, -1, "Select many:", wxPoint(200, 50), wxSize(65, 18))
  73         self.lb2 = wxListBox(self, 70, wxPoint(280, 50), wxSize(80, 120),
  74                        sampleList, wxLB_EXTENDED)
  75         EVT_LISTBOX(self, 70, self.EvtMultiListBox)
  76         EVT_LISTBOX_DCLICK(self, 70, self.EvtListBoxDClick)
  77         self.lb2.SetSelection(0)
  78
  79
  80         sampleList = sampleList + ['test a', 'test aa', 'test aab',
  81                                    'test ab', 'test abc', 'test abcc',
  82                                    'test abcd' ]
  83         sampleList.sort()
  84         wxStaticText(self, -1, "Find Prefix:", wxPoint(15, 250))
  85         fp = wxFindPrefixListBox(self, -1, wxPoint(80, 250), wxSize(80, 120),
  86                                  sampleList, wxLB_SINGLE)
  87         fp.SetSelection(0)
  88
  89
  90     def EvtListBox(self, event):
  91         self.log.WriteText('EvtListBox: %s\n' % event.GetString())
  92
  93     def EvtListBoxDClick(self, event):
  94         self.log.WriteText('EvtListBoxDClick: %s\n' % self.lb1.GetSelection())
  95         self.lb1.Delete(self.lb1.GetSelection())
  96
  97     def EvtMultiListBox(self, event):
  98         self.log.WriteText('EvtMultiListBox: %s\n' % str(self.lb2.GetSelections()))
  99
 100     def EvtRightButton(self, event):
 101         self.log.WriteText('EvtRightButton: %s\n' % event.GetPosition())
 102
 103 #---------------------------------------------------------------------------
 104
 105 def runTest(frame, nb, log):
 106     win = TestListBox(nb, log)
 107     return win
 108
 109 #---------------------------------------------------------------------------
 110
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 123
 124 overview = """\
 125 A listbox is used to select one or more of a list of strings. The strings are displayed in a scrolling box, with the selected string(s) marked in reverse video. A listbox can be single selection (if an item is selected, the previous selection is removed) or multiple selection (clicking an item toggles the item on or off independently of other selections).
 126
 127 """