Re: Theming support for NSScroller

[Günther Noack]

Hi!

I understand your point. On the other hand, I'd like to be able to  
create themes completely without additional pixmaps, so that drawing  
performance stays equal to a non-themed GNUstep. So images are not an  
option for me.

What about this solution:
NSScroller.m and NSScroller.h has a NSScrollerButtonCell and a  
NSScrollerKnobCell class which inherit from NSButtonCell. Overriding  
their drawRect:inView: methods would provide enough flexibility to  
allow both pixmap and programatic theming. Alternatively, these new  
cell classes could call specific GSTheme methods to let GSTheme draw.  
Something like -drawScrollerKnobInRect:highlighted: and - 
drawScrollerButtonInRect:highlighted:, possibly - 
drawScrollerKnobSlotInRect: (this can be called from -drawKnobSlot in  
NSScroller).

Best regards,
Günther


Am 05.10.2007 um 09:34 schrieb Fred Kiefer:
> I am very much in favour of adding more theming to GNUstep, but I  
> would
> like to keep the theming down to display code and keep all the
> functional logic in the original GNUstep code. Would it be sufficient
> for you if the images used for the different buttons are themable?