Hi Trygve, 2009/4/1 Trygve Inda <cocoa...@xericdesign.com>: > Using these two calls: > > NSRect nsRect = [screen frame]; > CGRect cgRect = CGDisplayBounds (displayID); > > I get for my two screens: > > NS x=0 y=0 w=2560 h=1600 // screen A > CG x=0 y=0 w=2560 h=1600 > > NS x=-1920 y=184 w=1920 h=1200 // screen B > CG x=-1920 y=216 w=1920 h=1200 > > > It seems CG origin is Top, Left with y growing down, while NS is origin > Bottom, Left, y growing up. So I convert CG to NS with: > > // Convert CG coordinates from (TL, y down) to (BL, y up) > > CGRect mainScreenRect = CGDisplayBounds (CGMainDisplayID ()); > > cgRect.origin.y = (cgRect.origin.y + cgRect.size.height - > mainScreenRect.size.height) * -1; > > (216 + 1200 - 1600) * -1 = 184 > > Is there a system function that does this? NSRectFromCGRect does not do the > coordinate conversion.
Why do you want to convert? Most of the Quartz drawing functions use the same coordinate system as the Cocoa functions. It's only a few (mainly the display ones I think) that are different. You certainly wouldn't want NSRectFromCGRect to do the transformation for you since you don't want it most of the time. As far as I know, there isn't any built in function to convert between the two. I was looking for one recently so I'd be interested if you come across one. Regards, Chris _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
