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(0)
  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
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 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 List box elements are numbered from zero.
 128
 129 wxListBox()
 130 ---------------------
 131
 132 Default constructor.
 133
 134 wxListBox(wxWindow* parent, wxWindowID id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, int n, const wxString choices[] = NULL, long style = 0, const wxValidator& validator = wxDefaultValidator, const wxString& name = "listBox")
 135
 136 Constructor, creating and showing a list box.
 137
 138 Parameters
 139 -------------------
 140
 141 parent = Parent window. Must not be NULL.
 142
 143 id = Window identifier. A value of -1 indicates a default value.
 144
 145 pos = Window position.
 146
 147 size = Window size. If the default size (-1, -1) is specified then the window is sized appropriately.
 148
 149 n = Number of strings with which to initialise the control.
 150
 151 choices = An array of strings with which to initialise the control.
 152
 153 style = Window style. See wxListBox.
 154
 155 validator = Window validator.
 156
 157 name = Window name.
 158 """