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Re: "... the window start at a meaningless point within a line."
From: |
Alan Mackenzie |
Subject: |
Re: "... the window start at a meaningless point within a line." |
Date: |
Sun, 18 Oct 2015 15:00:52 +0000 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
Hello, Eli.
On Sat, Oct 17, 2015 at 05:22:21PM +0300, Eli Zaretskii wrote:
> > Date: Sat, 17 Oct 2015 16:31:05 +0300
> > From: Eli Zaretskii <address@hidden>
> > Cc: address@hidden
> >
> > Is the following a correct definition of when Fvertical_motion
> > overshoots, i.e. lands one line below (for LINES > 0) the correct one:
> > when the offset between the "actual" window-start and the preceding
> > "xdisp" BOL is greater than the X coordinate of the last character of
> > the 1st physical line in the window.
> Another idea: did you try augmenting the X coordinate of the iterator
> after it gets back to point at the beginning of Fvertical_motion?
> IOW, after this line:
> move_it_to (&it,
> (!disp_string_at_start_p
> || FETCH_BYTE (IT_BYTEPOS (it)) == '\n')
> ? PT
> : PT - 1,
> -1, -1, -1, MOVE_TO_POS);
> modify it.current_x such that it's relative to the "actual"
> window-start. Then let Fvertical_motion do its job as usual. Did you
> try that?
No, I haven't. But I don't think it could work. After anchoring `it'
at "actual" WS, it would have to move up or down. Any time the iterator
is moved to a previous line, it re-anchors itself at a previous _xdisp_
BOL then moves forward, losing the relationship with WS.
So this idea might work with nlines > 0, but couldn't work with nlines
<= 0.
--
Alan Mackenzie (Nuremberg, Germany).
- Re: "... the window start at a meaningless point within a line.", (continued)
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/16
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/16
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/16
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/16
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/16
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/17
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/17
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/17
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/17
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/17
- Re: "... the window start at a meaningless point within a line.",
Alan Mackenzie <=
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/18
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/19
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/27
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/27
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/27
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/27
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/28
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/28
- Re: "... the window start at a meaningless point within a line.", Eli Zaretskii, 2015/10/31
- Re: "... the window start at a meaningless point within a line.", Alan Mackenzie, 2015/10/31