Today is a holiday, so I expect to have a longer time in coding.

The basic functionalities for the WBS are almost complete. Some of the functions that hasn’t been implemented yet are

  • Indentation
  • (Undo of Indent)
  • Undo / Redo
  • Automatic fill of End column

Among other things that I’m gonna be coding for today is the gantt chart display. I’m still deciding on what to use as a canvas though. Spent quite some time last night on this and I still haven’t yet.

So maybe I’m gonna be coding a little before breakfast and then after that, a lot of time will be put to planning on the next steps ahead.

8:28pm
To create the canvas, I decided to use the base class wx.Window, also the bars are instance of it. Bar class is the object the draws the bar segments for each task and draws them to the canvas at the appropriate locations.

9:47pm
Here comes the debugging. What I have now is that, if I adjust the start day of a task below the first task, it’s giving me this error:

RecursionError: maximum recursion depth exceeded

which is odd by the way because I didn’t create a recurssion method in any of my class and the error message just says that and nothing else. I have to do the debugging the hard way. Trial and error!

If I use Painting, the bars will be drawn gracefully and successfully for each operation. But that’s not what I wanted. I needed the bars wo be objects, not paint, so that I can handle my own events on each bar segements later.


I have found the cause of the RecursionError. Atleast I hope I had. But I still have no way of fixing it. The one that’s getting called for about 200 times is the handler for the wxEVT_GRID_CELL_CHANGED. Every call on this calls a method from the controller which in turns call other methods from other class, one of thos is the one that makes the Bar Charts.