Re: [Boa Constr] newbie question -- using Boa for creating a drawing canvas

[Riaan B. <riaan@e.co.za>]

Hi John,

John Boik wrote:
> 
> Hello Riaan, John, and all.  The wraparound for the wxShapeCanvas widget
> still seems to have one problem in it.  I created the custom canvas, as we
> discussed, but it does not seem to handle mouse events.  Using wxBell() as a
> test, I can get a mousedown event to ring the bell on a regular wxPanel, but
> on the new canvas it causes python to crash.  No message is given, just a
> python crash.  The applicable code is:

<snipped>

The problem is that you are using a wxShapeCanvas that has not been 
initialised properly. When it's initialised properly, it behaves and 
does not crash.
Add the following code to your __init__ method beneath _init_ctrls:

        self.diagram = wxDiagram()
        self.diagram.SetCanvas(self.scrolledWindow1)
        self.scrolledWindow1.SetDiagram(self.diagram)

I see you almost got this in the next mail you sent, close ;)

Cheers,
Riaan.