wxPython/demo/wxListCtrl_virtual.py

   1
   2 from wxPython.wx import *
   3
   4 #----------------------------------------------------------------------
   5
   6 class TestVirtualList(wxListCtrl):
   7     def __init__(self, parent, log):
   8         wxListCtrl.__init__(self, parent, -1,
   9                             style=wxLC_REPORT|wxLC_VIRTUAL|wxLC_HRULES|wxLC_VRULES)
  10         self.log = log
  11
  12         self.InsertColumn(0, "First")
  13         self.InsertColumn(1, "Second")
  14         self.InsertColumn(2, "Third")
  15         self.SetColumnWidth(0, 175)
  16         self.SetColumnWidth(1, 175)
  17         self.SetColumnWidth(2, 175)
  18
  19         self.SetItemCount(1000000)
  20
  21         self.attr1 = wxListItemAttr()
  22         self.attr1.SetBackgroundColour("yellow")
  23
  24         self.attr2 = wxListItemAttr()
  25         self.attr2.SetBackgroundColour("light blue")
  26
  27         EVT_LIST_ITEM_SELECTED(self, self.GetId(), self.OnItemSelected)
  28         EVT_LIST_ITEM_ACTIVATED(self, self.GetId(), self.OnItemActivated)
  29         EVT_LIST_ITEM_DESELECTED(self, self.GetId(), self.OnItemDeselected)
  30
  31
  32     def OnItemSelected(self, event):
  33         self.currentItem = event.m_itemIndex
  34         self.log.WriteText('OnItemSelected: "%s", "%s", "%s", "%s"\n' %
  35                            (self.currentItem,
  36                             self.GetItemText(self.currentItem),
  37                             self.getColumnText(self.currentItem, 1),
  38                             self.getColumnText(self.currentItem, 2)))
  39
  40     def OnItemActivated(self, event):
  41         self.currentItem = event.m_itemIndex
  42         self.log.WriteText("OnItemActivated: %s\n" % self.GetItemText(self.currentItem))
  43
  44     def getColumnText(self, index, col):
  45         item = self.GetItem(index, col)
  46         return item.GetText()
  47
  48     def OnItemDeselected(self, evt):
  49         print evt.m_itemIndex
  50
  51
  52     #---------------------------------------------------
  53     # These methods are callbacks for implementing the
  54     # "virtualness" of the list...
  55     def OnGetItemText(self, item, col):
  56         return "Item %d, column %d" % (item, col)
  57
  58
  59     def OnGetItemImage(self, item):
  60         return -1  # if used you should return the index in the ImageList
  61
  62
  63     def OnGetItemAttr(self, item):
  64         if item % 3 == 1:
  65             return self.attr1
  66         elif item % 3 == 2:
  67             return self.attr2
  68         else:
  69             return None
  70
  71
  72 #----------------------------------------------------------------------
  73
  74 def runTest(frame, nb, log):
  75     win = TestVirtualList(nb, log)
  76     return win
  77
  78 #----------------------------------------------------------------------
  79
  80
  81
  82
  83
  84 overview = """\
  85 """
  86
  87
  88
  89 if __name__ == '__main__':
  90     import sys,os
  91     import run
  92     run.main(['', os.path.basename(sys.argv[0])])
  93