On Tue, Dec 11, 2012, at 02:17 AM, jonat...@mugginsoft.com wrote: > > On 10 Dec 2012, at 19:13, Kyle Sluder <k...@ksluder.com> wrote: > > > It's my understanding that the intent of NSStringDrawing is to provide > > the exact same drawing as NSTextFieldCell. > Is that stated anywhere?
I swear it was stated somewhere… it might have been in a WWDC video. But I know that NSStringDrawing and NSTextFieldCell both go through the same core hunk of code (_NSStringDrawingCore). From the disassembly I'm reading, it really looks like NSTextFieldCell is calling -titleRectForBounds: to compute the frame to draw within, but that's just not happening. > Have you confirmed that the issue occurs with an NSString instance? Yes. > > In the past I have experienced layout differences when calling either > drawAtPoint: or drawWithRect:options. > I would experiment with calling drawAtPoint: and drawInRect: Tried it; there's no difference here. > > The Text Layout Programming Guide says: > > String Drawing and Typesetter Behaviors > > There are differences among Cocoa’s three ways to draw text with regard > to typesetter behavior, which is described in “Typesetter Behaviors and > Versions.” By default, the string-drawing convenience methods and NSCell > objects supplied by the Application Kit > useNSTypesetterBehavior_10_2_WithCompatibility, whereas NSLayoutManager > objects use NSTypesetterLatestBehavior. It is important to use the same > typesetter behavior when both measuring and rendering text, to avoid > differences in paragraph spacing, line spacing, and head indent handling. Since I'm comparing the string-drawing methods to NSTextFieldCell drawing, according to this documentation there should be no difference. --Kyle Sluder _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
