hello,
This might be a strange question, but as a practical guy, I'm not
searching for the best solution, but for a practical solution.
I've a class which I've used very extensively.
Now I want to extend that class with an action on a double click event,
but that action is determined by the main program.
Normally I would create an derived class and add that specific action.
But I find it too much effort in this specific case, half of the
instances need the extension, half of it dont.
So I want to change the behavior of the class dynamically.
I've done it by adding a global variable (Base_Grid_Double_Click) in the
module,
initial set to None,
but can be changed by the main program to some callback function.
(see the code below)
Is this a valid construction ( sorry I'm not a programmer),
or are there better ways to accomplish similar dynamic behavior ?
thanks,
Stef Mientki
#== module grid_library ==
Base_Grid_Double_Click = None
class Base_Grid ( wx.grid.Grid ) :
def __init__ ( self, ....
self.Bind ( gridlib.EVT_GRID_CELL_LEFT_DCLICK , self._On_Double_Click )
def _On_Double_Click ( self, event ) :
if Base_Grid_Double_Click :
Row = event.Row
Col = event.Col
Col_Label = self.GetColLabelValue ( Col )
Row_Label = self.GetRowLabelValue ( Row )
Base_Grid_Double_Click ( self.GetCellValue ( Row, Col ),
Col_Label, Row_Label )
else :
event.Skip ()
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