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Clarify cursors with multiple windows.

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This commit is contained in:
Richard M. Stallman 2002-07-07 11:37:07 +00:00
parent c84d4f5903
commit ffa7d02ad8
1 changed files with 26 additions and 22 deletions
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48
man/screen.texi
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@ -21,7 +21,7 @@ can access a series of menus; then there may be a @dfn{tool bar}, a
row of icons that perform editing commands if you click on them.
Below this, the window begins. The last line is a special @dfn{echo
area} or @dfn{minibuffer window}, where prompts appear and where you
can enter information when Emacs asks for it. See below for more
enter information when Emacs asks for it. See below for more
information about these special lines.
You can subdivide the large text window horizontally or vertically
@ -29,13 +29,14 @@ into multiple text windows, each of which can be used for a different
file (@pxref{Windows}). In this manual, the word ``window'' always
refers to the subdivisions of a frame within Emacs.
The window that the cursor is in is the @dfn{selected window}, in
which editing takes place. Most Emacs commands implicitly apply to the
text in the selected window (though mouse commands generally operate on
whatever window you click them in, whether selected or not). The other
windows display text for reference only, unless/until you select them.
If you use multiple frames under the X Window System, then giving the
input focus to a particular frame selects a window in that frame.
At any time, one window is the @dfn{selected window}; the most
prominent cursor indicates which window is selected. Most Emacs
commands implicitly apply to the text in the selected window (though
mouse commands generally operate on whatever window you click them in,
whether selected or not). The other windows display text for
reference only, unless/until you select them. If you use multiple
frames under the X Window System, then giving the input focus to a
particular frame selects a window in that frame.
Each window's last line is a @dfn{mode line}, which describes what
is going on in that window. It appears in inverse video, if the
@ -75,24 +76,27 @@ the @samp{b}, as before.
Sometimes people speak of ``the cursor'' when they mean ``point,'' or
speak of commands that move point as ``cursor motion'' commands.
Text-only terminals have only one cursor, and when output is in
progress it must appear where the output is being displayed. This
does not mean that point is moving. It is only that Emacs has no way
to show you the location of point except when the terminal is idle.
If you are editing several files in Emacs, each in its own buffer,
each buffer has its own point location. A buffer that is not currently
displayed remembers where point is in case you display it again later.
When Emacs displays multiple windows, each window has its own point
location. On text-only terminals, the cursor shows the location of
point in the selected window. On graphical terminals, Emacs shows a
cursor in each window; the selected window's cursor is solid, and the
other cursors are hollow. Either way, the cursor or cursors tell you
which window is selected. If the same buffer appears in more than one
each buffer has its own point location. A buffer that is not
currently displayed remembers its point location in case you display
it again later. When Emacs displays multiple windows, each window has
its own point location. If the same buffer appears in more than one
window, each window has its own position for point in that buffer, and
(when possible) its own cursor.
A text-only terminal has just one cursor, so Emacs puts it
in the selected window. The other windows do not show a cursor, even
though they do have a location of point. When Emacs updates the
screen on a text-only terminal, it has to put the cursor temporarily
at the place the output goes. This doesn't mean point is there,
though. Once display updating finishes, Emacs puts the cursor where
point is.
On graphical terminals, Emacs shows a cursor in each window; the
selected window's cursor is solid or blinking, and the other cursors
are just hollow. Thus, the most striking cursor always shows you
the selected window, on all kinds of terminals.
@xref{Cursor Display}, for customization options that control display
of the cursor or cursors.