On 01.09.2016 at 10:00 Alastair Houghton wrote: > On 31 Aug 2016, at 19:24, Andreas Falkenhahn <andr...@falkenhahn.com> wrote:
>> On 31.08.2016 at 20:08 Alastair Houghton wrote: >>> On 31 Aug 2016, at 15:52, Andreas Falkenhahn <andr...@falkenhahn.com> wrote: >>>> But I still don't understand how computing glyph positioning manually >>>> should work around the fact that there are no APIs that measure the text >>>> like ATSUI. I mean, internally, CTLineGetOffsetForStringIndex() probably >>>> does exactly that, it returns the positioning obtained from >>>> CTRunGetAdvances(). >>> You need to get the advances of individual glyphs, and sum the rounded >>> values. >> Look at the example code I posted. It's just a single glyph in the string. >> The string is just a "W”. > The problem is most likely that the “W” doesn’t start at x = 0 > (have you tried calling CTLineGetOffsetForStringIndex(line, 0, NULL)?) That returns 0, that's why I was using 1. -- Best regards, Andreas Falkenhahn mailto:andr...@falkenhahn.com _______________________________________________ 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
