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Gerd Moellmann 2000-12-20 15:37:23 +00:00
parent 3172f70b51
commit 03ff8aabc3
5 changed files with 36 additions and 3 deletions
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6
etc/NEWS
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@ -667,6 +667,12 @@ Horizontal scrolling now happens automatically if
`automatic-hscrolling' is set (the default). This setting can be
customized.
If a window is scrolled horizontally with set-window-hscroll, or
scroll-left/scroll-right (C-x <, C-x >), this serves as a lower bound
for automatic horizontal scrolling. Automatic scrolling will scroll
the text more to the left if necessary, but won't scroll the text more
to the right than the column set with set-window-hscroll etc.
+++
** Tool bar support.

2
etc/TODO
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@ -143,3 +143,5 @@
* Remove the limitation that window and frame widths and heights can
be only full columns/lines.
* Add horizontal scroll bars.

8
lispref/windows.texi
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@ -1517,9 +1517,11 @@ left you can scroll, but eventually all the text will disappear off the
left edge.
In Emacs 21, redisplay automatically alters the horizontal scrolling
of a window as necessary to ensure that point is always visible.
However, you can still set the horizontal scrolling value explicitly.
The value you specify will be used, provided it leaves point visible.
of a window as necessary to ensure that point is always visible, if
@code{automatic-hscrolling} is set. However, you can still set the
horizontal scrolling value explicitly. The value you specify serves as
a lower bound for automatic scrolling, i.e. automatic scrolling
will not scroll a window to a column less than the specified one.
@deffn Command scroll-left &optional count
This function scrolls the selected window @var{count} columns to the

6
man/display.texi
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@ -200,6 +200,12 @@ necessary to keep point visible and not too far from the left or right
edge. If you don't want this, customize the variable
@code{automatic-hscrolling} and set it to nil.
If a window is scrolled horizontally by means of @code{scroll-left}, the
chosen column serves as a lower bound for automatic horizontal
scrolling. Automatic scrolling will continue to scroll the window to
the left, if necessary, but won't scroll it more to the right than the
column set by @code{scroll-left}.
@node Follow Mode
@section Follow Mode
@cindex Follow mode

17
src/ChangeLog
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@ -1,5 +1,22 @@
2000-12-20 Gerd Moellmann <gerd@gnu.org>
* xdisp.c (hscroll_window_tree): Take window's min_hscroll
into account.
* window.c (make_window): Initialize window's min_hscroll.
(Fset_window_hscroll): Set window's hscroll and min_hscroll.
(set_window_buffer, temp_output_buffer_show): Set min_hscroll
to zero.
(struct saved_window): New member min_hscroll.
(SAVED_WINDOW_VECTOR_SIZE): Set to 17.
(Fset_window_configuration): Set window's min_hscroll.
(save_window_save): Save window's min_hscroll.
(compare_window_configurations): Compare min_hscroll values.
* window.h (struct window): New member min_hscroll.
* keyboard.c (echo_prompt): Prevent a compiler warning.
* xdisp.c (try_cursor_movement): Fix last change. The real
condition is that PT is at the end of the row, and should
be displayed at the start of the next row.