wxPython/demo/GridHugeTable.py

   1
   2 import  wx
   3 import  wx.grid as  gridlib
   4
   5 #---------------------------------------------------------------------------
   6
   7 class HugeTable(gridlib.PyGridTableBase):
   8
   9     """
  10     This is all it takes to make a custom data table to plug into a
  11     wxGrid.  There are many more methods that can be overridden, but
  12     the ones shown below are the required ones.  This table simply
  13     provides strings containing the row and column values.
  14     """
  15
  16     def __init__(self, log):
  17         gridlib.PyGridTableBase.__init__(self)
  18         self.log = log
  19
  20         self.odd=gridlib.GridCellAttr()
  21         self.odd.SetBackgroundColour("sky blue")
  22         self.even=gridlib.GridCellAttr()
  23         self.even.SetBackgroundColour("sea green")
  24
  25     def GetAttr(self, row, col, kind):
  26         attr = [self.even, self.odd][row % 2]
  27         attr.IncRef()
  28         return attr
  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 #---------------------------------------------------------------------------