[wx 2.8.7 OSX gcc] wxRichTextCtrl fires an EraseBackgroundEvent each times caracters are pressed

[Phil White]

Julian Smart <julian <at> anthemion.co.uk> writes:

> 
> Phil White wrote:
> >   Hi, I was wondering how come each times a caracter is pressed in a 
> > richtextctrl, the parent's wxEraseEvent is fired?? It is a normal 
> > behavior? On wxMSW and wxGTK, it doesn't fire.
> >
> >   Any other person has come across the same problem?
> I guess wxMac doesn't check for the wxBG_STYLE_CUSTOM background style 
> to suppress erase events (Refresh() will be called each time a character 
> is pressed, hence the erase event). However wxRichTextCtrl defines an 
> empty erase event handler to ignore it anyway. Is it a problem?
> 
> Regards,
> 
> Julian
> 

  Hi Julian. I searched into source code and yes, you are right, the wxMac
doesn't check for the background style. I'm tracking down a performance issue of
wxRichTextCtrl on wxMac. I don't know for sure why it happens, but when typed
text reaches the wxRichTextCtrl's screen width, it becomes to be really slow
while typing caracters on screen. That's why I thought it was the performance
issue problem.

Anyone got this performance issue before me? There's a flag to disable on wxMac?
On other platforms, it just goes well.

Thanks,
Phil