> The information I am getting back from advancementForGlyph doesn't > seem to be correct. Here are the glyph bounds and advancement for > the capital letter 'A' in Georgia 36pt: > > == A == > bounds x: -0.720703 > bounds y: 0.000000 > bounds w: 25.699219 > bounds h: 25.294922 > advance w: 24.152344 > advance h: 0.000000 > > The problem that I am seeing is that it looks like the advancement > should only be 23 (maybe ~23.2). TextEdit appears to be using an > advancement of 23 and underlines and strikethroughs are being drawn > 23 pixels wide. > > Any ideas on what I am doing/understanding wrong?
The information is 'correct', ie. it is was it is - the data encoded in the font scaled to your working size. How on earth are you determining that it "looks like the advancement should only be ~23.2" ? "TextEdit appears to be using an advancement of 23" How have you determined this? If you have infact determined that TextEdit uses and advance of ~23.2px, what makes you think that this is more likely to be correct than the value encoded in the font, by the font designer? >From your later response it seems like your question is really regarding drawing strikethroughs and underlines. If so, the strike through and underline are not part of the glyph or font - they are just a line drawn from the start point of a range of glyphs to the end point of a range of glyphs. You cannot draw them piecemeal, a glyph at a time, and expect them to perfectly match up without overlap or underlap (apologies for making up a word), as the amount that any 2 glyphs overlap is particular to those 2 glyhps. ie. The strikethrough of an 'A' followed by a 'V' would need to be a different length than that of an 'A' followed by a 'j'. _______________________________________________ Cocoa-dev mailing list ([email protected]) 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 [email protected]
