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         self.lb1.Append("with data", "This one has data");
  71         self.lb1.SetClientData(2, "This one has data");
  72
  73
  74         wxStaticText(self, -1, "Select many:", wxPoint(200, 50), wxSize(65, 18))
  75         self.lb2 = wxListBox(self, 70, wxPoint(280, 50), wxSize(80, 120),
  76                        sampleList, wxLB_EXTENDED)
  77         EVT_LISTBOX(self, 70, self.EvtMultiListBox)
  78         EVT_RIGHT_UP(self.lb2, self.EvtRightButton)
  79         self.lb2.SetSelection(0)
  80
  81
  82         sampleList = sampleList + ['test a', 'test aa', 'test aab',
  83                                    'test ab', 'test abc', 'test abcc',
  84                                    'test abcd' ]
  85         sampleList.sort()
  86         wxStaticText(self, -1, "Find Prefix:", wxPoint(15, 250))
  87         fp = wxFindPrefixListBox(self, -1, wxPoint(80, 250), wxSize(80, 120),
  88                                  sampleList, wxLB_SINGLE)
  89         fp.SetSelection(0)
  90
  91
  92     def EvtListBox(self, event):
  93         self.log.WriteText('EvtListBox: %s\n' % event.GetString())
  94         lb = event.GetEventObject()
  95         data = lb.GetClientData(lb.GetSelection())
  96         if data is not None:
  97             self.log.WriteText('\tdata: %s\n' % data)
  98
  99
 100     def EvtListBoxDClick(self, event):
 101         self.log.WriteText('EvtListBoxDClick: %s\n' % self.lb1.GetSelection())
 102         self.lb1.Delete(self.lb1.GetSelection())
 103
 104     def EvtMultiListBox(self, event):
 105         self.log.WriteText('EvtMultiListBox: %s\n' % str(self.lb2.GetSelections()))
 106
 107     def EvtRightButton(self, event):
 108         self.log.WriteText('EvtRightButton: %s\n' % event.GetPosition())
 109         if event.GetEventObject().GetId() == 70:
 110             selections = list(self.lb2.GetSelections())
 111             selections.reverse()
 112             for index in selections:
 113                 self.lb2.Delete(index)
 114
 115
 116 #---------------------------------------------------------------------------
 117
 118 def runTest(frame, nb, log):
 119     win = TestListBox(nb, log)
 120     return win
 121
 122 #---------------------------------------------------------------------------
 123
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 136
 137 overview = """\
 138 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).
 139
 140 """