Re: How is "Apple + Ctrl + D" implemented?
Re: How is "Apple + Ctrl + D" implemented?
- Subject: Re: How is "Apple + Ctrl + D" implemented?
- From: "Ying Bian" <email@hidden>
- Date: Mon, 28 Apr 2008 21:25:38 +0800
Graham,
Thanks so much. I will try it out based on your suggestions and will
keep the result
posted.
On Mon, Apr 28, 2008 at 6:42 PM, Graham Cox <email@hidden> wrote:
> NSTextView has this:
>
> - (NSRange)selectionRangeForProposedRange:(NSRange)proposedSelRange
> granularity:(NSSelectionGranularity)granularity
>
> So if the proposedSelRange is a zero-length range at the character index
> determined before, and granularity is NSSelectByWord, it should return the
> range of the word.
>
> hth,
>
> G. (still guessing ;-)
>
>
>
> On 28 Apr 2008, at 8:06 pm, Ying Bian wrote:
>
> >
> >
> >
> > Graham,
> >
> > Thanks for your reply! But how can I "find the range of the word" given
> > the glyph index? I just can not find an API doing so.
> >
> > So I don't think this is the underlying implementation. Any comments
> > from others?
> >
> > On Mon, Apr 28, 2008 at 2:51 PM, Graham Cox <email@hidden>
> wrote:
> >
> > > I imagine it uses some API such as NSLayoutManager's:
> > >
> > > - (NSUInteger)glyphIndexForPoint:(NSPoint)point
> > > inTextContainer:(NSTextContainer *)container
> > > fractionOfDistanceThroughGlyph:(CGFloat *)partialFraction
> > >
> > >
> > > One you have the glyph index you can find the range of the word it
> belongs
> > > to.
> > >
> > > One you have the string of the word it belongs to, you can look it up in
> > > dictionary.app using the Application Services API.
> > >
> > >
> > > hth, though I am guessing to some extent.
> > >
> > >
> > >
> > > G.
> > >
> > >
> >
> > --
> > B.Y.
> >
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--
B.Y.
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