wxPython/demo/GridHugeTable.py

   1
   2 import  wx
   3 import  wx.grid as  gridlib
   4
   5 #---------------------------------------------------------------------------
   6
   7 class HugeTable(gridlib.PyGridTableBase):
   8
   9     def __init__(self, log):
  10         gridlib.PyGridTableBase.__init__(self)
  11         self.log = log
  12
  13         self.odd=gridlib.GridCellAttr()
  14         self.odd.SetBackgroundColour("sky blue")
  15         self.even=gridlib.GridCellAttr()
  16         self.even.SetBackgroundColour("sea green")
  17
  18     def GetAttr(self, row, col, kind):
  19         attr = [self.even, self.odd][row % 2]
  20         attr.IncRef()
  21         return attr
  22
  23
  24
  25     # This is all it takes to make a custom data table to plug into a
  26     # wxGrid.  There are many more methods that can be overridden, but
  27     # the ones shown below are the required ones.  This table simply
  28     # provides strings containing the row and column values.
  29
  30     def GetNumberRows(self):
  31         return 10000
  32
  33     def GetNumberCols(self):
  34         return 10000
  35
  36     def IsEmptyCell(self, row, col):
  37         return False
  38
  39     def GetValue(self, row, col):
  40         return str( (row, col) )
  41
  42     def SetValue(self, row, col, value):
  43         self.log.write('SetValue(%d, %d, "%s") ignored.\n' % (row, col, value))
  44
  45
  46 #---------------------------------------------------------------------------
  47
  48
  49
  50 class HugeTableGrid(gridlib.Grid):
  51     def __init__(self, parent, log):
  52         gridlib.Grid.__init__(self, parent, -1)
  53
  54         table = HugeTable(log)
  55
  56         # The second parameter means that the grid is to take ownership of the
  57         # table and will destroy it when done.  Otherwise you would need to keep
  58         # a reference to it and call it's Destroy method later.
  59         self.SetTable(table, True)
  60
  61         self.Bind(gridlib.EVT_GRID_CELL_RIGHT_CLICK, self.OnRightDown)
  62
  63     def OnRightDown(self, event):
  64         print "hello"
  65         print self.GetSelectedRows()
  66
  67
  68 #---------------------------------------------------------------------------
  69
  70 class TestFrame(wx.Frame):
  71     def __init__(self, parent, log):
  72         wx.Frame.__init__(self, parent, -1, "Huge (virtual) Table Demo", size=(640,480))
  73         grid = HugeTableGrid(self, log)
  74
  75         grid.SetReadOnly(5,5, True)
  76
  77 #---------------------------------------------------------------------------
  78
  79 if __name__ == '__main__':
  80     import sys
  81     app = wx.PySimpleApp()
  82     frame = TestFrame(None, sys.stdout)
  83     frame.Show(True)
  84     app.MainLoop()
  85
  86
  87 #---------------------------------------------------------------------------