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bug#12419: Mouse click changes layout
From: |
martin rudalics |
Subject: |
bug#12419: Mouse click changes layout |
Date: |
Wed, 26 Sep 2012 14:43:22 +0200 |
> Sorry, I don't understand what you mean by "drawing over a previous
> column/row". Which "previous" column/row are we talking about?
For example, when we draw the mode-line of a window: Do we first clip
the glyphs on the bottom of the last proper line of the window or do we
draw them unclipped and afterwards draw the mode-line on top of it so it
obscures the lower part of the window line?
> A window must always start with a fully-visible line (unless it's the
> only line), so in that sense a window always starts at an integral
> number of lines. But it doesn't have to _end_ with a fully-visible
> line.
>
> Does this explain why the above is not a problem?
Yes. So the event reporting mechanism fully supports windows that
display partially visible lines.
>> Consider a two window frame, the upper window has 5 lines the lower
>> window has 6 lines but in fact both are shown with 5.5 lines.
>
> Can't happen: a window that displays 5.5 lines must have 6 lines, or
> else the glyphs for the last half-line will have no place in the glyph
> matrix.
Let's say the TTY equivalent of the upper window would display 5 lines.
>> Now I
>> enlarge the upper window by one line. Currently this makes a 6 to 5
>> lines frame. Would it make a 6.5 to 4.5 frame with the new code or a 6
>> to 5 lines frame?
>
> It's up to us. The easiest (and also the least surprising, IMO) would
> be to resize from (5.5, 5.5) to (6.5, 4.5), i.e. by one full line.
In this case the TTY equivalent would display (6, 5) lines.
>> For implementing something like `count-screen-lines-to-pixels' and get
>> rid of that crazy loop where we calculate `pos-visible-in-window-p' and
>> resize the window.
>
> I think pos-visible-in-window-p is what you need.
Currently it loops calling `pos-visible-in-window-p' until the position
is visible. How avoid that loop?
martin
- bug#12419: Mouse click changes layout, (continued)
- bug#12419: Mouse click changes layout, martin rudalics, 2012/09/23
- bug#12419: Mouse click changes layout, Daniel Pfeiffer, 2012/09/23
- bug#12419: Mouse click changes layout, martin rudalics, 2012/09/24
- bug#12419: Mouse click changes layout, Eli Zaretskii, 2012/09/24
- bug#12419: Mouse click changes layout, martin rudalics, 2012/09/25
- bug#12419: Mouse click changes layout, Eli Zaretskii, 2012/09/25
- bug#12419: Mouse click changes layout, martin rudalics, 2012/09/25
- bug#12419: Mouse click changes layout, Eli Zaretskii, 2012/09/26
- bug#12419: Mouse click changes layout, martin rudalics, 2012/09/26
- bug#12419: Mouse click changes layout, Eli Zaretskii, 2012/09/26
- bug#12419: Mouse click changes layout,
martin rudalics <=
- bug#12419: Mouse click changes layout, Eli Zaretskii, 2012/09/26
- bug#12419: Mouse click changes layout, martin rudalics, 2012/09/26
- bug#12419: Mouse click changes layout, Eli Zaretskii, 2012/09/26
- bug#12419: Mouse click changes layout, Daniel Pfeiffer, 2012/09/24
- bug#12419: Mouse click changes layout, Eli Zaretskii, 2012/09/25
- bug#12419: Mouse click changes layout, martin rudalics, 2012/09/25