Thanks Ross, That appears to be doing the trick!
Still trikes me as odd though that the other approach of tweaking the willSetLineFragmentRect: wouldn't work. I'll have to ask around at WWDC next week. Thanks again, -bd On Jun 4, 2012, at 12:45 PM, Ross Carter wrote: > On Jun 1, 2012, at 9:36 AM, Bill Dudney wrote: >> I'm able to add additional space around a paragraph in my subclass of >> NSATSTypesetter's implementation of >> willSetLineFragmentRect:forGlyphRange:usedRect:baselineOffset:. However, I >> am not getting what I expect as I tweak the parameters to this method. I was >> hoping for some insight on what these parameters really mean from the group >> to help me understand why I'm not getting what I expect. >> >> When I increase the height of the lineFragmentRect and the usedRect the >> space for the paragraph does grow and I get the space I expect. >> >> What is confusing me is where the line of text is drawn in the >> lineFragmentRect. Based on experimentation the line of text is always drawn >> near the top. When I first encountered this I assumed that tweaking the >> baselineOffset would allow me control over where the text is drawn. I was >> unable to change where the text is drawn by tweaking baselineOffset. >> >> My next attempt was to tweak the origin of the lineFragmentRect. That did >> move the line of text, but not in ways I expected it to. My thinking was >> that moving the origin.y 3 would move the text by 3. That does not appear to >> be the case. >> >> Based my reading of the docs it looks to me as if the changes I make in >> willSetLineFrag… are passed on to >> setLineFragmentRect:forGlyphRange:usedRect:baselineOffset:. During the >> implementation of setLineFrag… the layout manager must be called with >> setLocation:forStartOfGlyphRange: > > Bill, I had a similar problem, and I handled it by overriding > -paragraphSpacingBeforeGlyphAtIndex: withProposedLineFragmentRect:. > > Ross > > _______________________________________________ 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
