wxPython/demo/GridHugeTable.py

   1 from wxPython.wx import *
   2 from wxPython.grid import *
   3
   4 #---------------------------------------------------------------------------
   5
   6 class HugeTable(wxPyGridTableBase):
   7
   8     """
   9     This is all it takes to make a custom data table to plug into a
  10     wxGrid.  There are many more methods that can be overridden, but
  11     the ones shown below are the required ones.  This table simply
  12     provides strings containing the row and column values.
  13     """
  14
  15     def __init__(self, log):
  16         wxPyGridTableBase.__init__(self)
  17         self.log = log
  18
  19     def GetNumberRows(self):
  20         return 10000
  21
  22     def GetNumberCols(self):
  23         return 10000
  24
  25     def IsEmptyCell(self, row, col):
  26         return false
  27
  28     def GetValue(self, row, col):
  29         return str( (row, col) )
  30
  31     def SetValue(self, row, col, value):
  32         self.log.write('SetValue(%d, %d, "%s") ignored.\n' % (row, col, value))
  33
  34
  35 #---------------------------------------------------------------------------
  36
  37
  38
  39 class HugeTableGrid(wxGrid):
  40     def __init__(self, parent, log):
  41         wxGrid.__init__(self, parent, -1)
  42
  43         table = HugeTable(log)
  44
  45         # The second parameter means that the grid is to take ownership of the
  46         # table and will destroy it when done.  Otherwise you would need to keep
  47         # a reference to it and call it's Destroy method later.
  48         self.SetTable(table, true)
  49
  50
  51
  52 #---------------------------------------------------------------------------
  53
  54 class TestFrame(wxFrame):
  55     def __init__(self, parent, log):
  56         wxFrame.__init__(self, parent, -1, "Huge (virtual) Table Demo", size=(640,480))
  57         grid = HugeTableGrid(self, log)
  58
  59         grid.SetReadOnly(5,5, true)
  60
  61 #---------------------------------------------------------------------------
  62
  63 if __name__ == '__main__':
  64     import sys
  65     app = wxPySimpleApp()
  66     frame = TestFrame(None, sys.stdout)
  67     frame.Show(true)
  68     app.MainLoop()
  69
  70
  71 #---------------------------------------------------------------------------