Thanks for the response, very helpful. Also the link to the iTunes U session. There is a wealth of info I was not aware of that it is available for non-WWDC attendees.
- Koen. On Mar 31, 2012, at 9:41 PM, Douglas Davidson wrote: > > > On Mar 31, 2012, at 6:09 PM, Graham Cox <graham....@bigpond.com> wrote: > >> >> On 31/03/2012, at 11:08 PM, Koen van der Drift wrote: >> >>> I have an NSTextView to which I want to add some lines that connect >>> certain words. When the text changes, either by editing, or scrolling, >>> that lines should follow the words. I thought about using >>> CoreAnimation, but text in a CATextLayer does not appear to be >>> editable like the text in an NSTextView (is that correct?). So, an >>> alternative could be to override drawViewBackgroundInRect and use >>> NSBezierPaths to draw my lines and I will work on that this weekend. >>> >>> Any thoughts or suggestions I may have overlooked? >> >> >> Seems to me you're focusing on the wrong aspect of the problem. The key to >> this is to track given words' positions as the text is scrolled/reflowed. If >> you lay out the text yourself (using NSLayoutManager, for example) this is >> not hard, but if you leave it to something else, such as NSTextView, it may >> be a lot harder (though NSTextView has a NSLayoutManager of which you can >> ask questions). >> >> Drawing the lines once you have those positions is relatively easy - >> NSBezierPaths will work, and are probably the simplest. > > Actually it's pretty easy to just use the text view's layout manager to find > out where the words are, and do some additional drawing in your NSTextView > subclass. We have some developer examples of this, though I don't have them > ready to hand at the moment, and I've discussed this at more than one WWDC > text session. > > -Doug _______________________________________________ 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
