Re: Fix: NSView, view clipping

[Adam Fedor]

Well now I'm reconsidering the change to use save/restore in NSView's

lockFocus. The problem with this is that user objects (such as gstates) 
are stored in local VM, and a restore invalidates anything in local VM. 
This in fact screws up the xdps backend (not the xgps backend because 
xgps is only a weak attempt at implementing DPS).

I could store gstates in some global dictionary, but that would be a 
pain to implement.

The only other alternative is to go back to gsave/grestore. Then of 
course we couldn't use rectviewclip (since grestore doesn't restore 
those) and instead use rectclip. The drawback to this is that a custom 
view could potentially (i.e. on purpose) mess with the clip path and 
draw all over the window. But I suppose that's the application 
developer's problem...

If anyone has any opinions, let me know.


On second though, I suppose a custom view could call rectviewclip and 
screw with the window also, so perhaps it doesn't matter anyway...

--
Adam Fedor, Digital Optics            | Fudd's law of opposition: Push
fedor@doc.com  http://www.doc.com     | something hard enough, and it
fedor@gnu.org  http://www.gnustep.org | will fall over.