Re: Custom line breaking in NSTextView
Re: Custom line breaking in NSTextView
- Subject: Re: Custom line breaking in NSTextView
- From: email@hidden (Stefan Haller)
- Date: Thu, 28 Jul 2005 11:30:12 +0200
- Organization: Ableton
Aki Inoue <email@hidden> wrote:
> > 1) Determine which is the first character that no longer fits on the
> > current line;
> >
> > 2) Once that character is found, go back from there and look for a
> > suitable place where to break the line.
> >
> > Your suggestion would allow me to customize 2), which is not what I
> > want; I need to customize 1).
>
> I really don't see why you think it doesn't work.
Because I tried it. :-)
> In order to fit a pre-defined number of characters in a line, you need to
> specify sufficiently large number for the container width. From there,
> the glyph position passed to the method should be always larger than the
> number of characters.
It doesn't appear to work that way. For a text container that is wider
than my line of text, lineBreakBeforeIndex:withinRange: is not called at
all (why should it). The method is only called after the typesetter
determined that the line doesn't fit into the container rect, and then
it passes a range up to the first character that doesn't fit. That's
too late for me; I need to hook into the decision which characters do or
don't fit on a line.
I really don't know how else to put it: you told me how to customize 2)
(see top of mail), which I don't need to do; I need to customize 1), and
I can't figure out how to do that easily.
--
Stefan Haller
Ableton
http://www.ableton.com/
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