@c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 1999-2012
-@c Free Software Foundation, Inc.
+@c Copyright (C) 1985-1987, 1993-1995, 1997, 1999-2015 Free Software
+@c Foundation, Inc.
@c See file emacs.texi for copying conditions.
@node Frames
@chapter Frames and Graphical Displays
@cindex frames
- When Emacs is started on a graphical display, e.g.@: on the X Window
+ When Emacs is started on a graphical display, e.g., on the X Window
System, it occupies a graphical system-level ``window''. In this
manual, we call this a @dfn{frame}, reserving the word ``window'' for
the part of the frame used for displaying a buffer. A frame initially
@ifnottex
@pxref{MS-DOS Mouse},
@end ifnottex
-for doing so on MS-DOS).
+for doing so on MS-DOS). Menus are supported on all text terminals.
@menu
* Mouse Commands:: Moving, cutting, and pasting, with the mouse.
Move point to where you click (@code{mouse-set-point}).
@item Drag-Mouse-1
-Activate the region around the text selected by dragging, and copy it
-to the kill ring (@code{mouse-set-region}).
+Activate the region around the text selected by dragging, and put the
+text in the primary selection (@code{mouse-set-region}).
@item Mouse-2
-Yank the last killed text at the click position
-(@code{mouse-yank-at-click}).
+Move point to where you click, and insert the contents of the primary
+selection there (@code{mouse-yank-primary}).
@item Mouse-3
If the region is active, move the nearer end of the region to the
selection (@code{mouse-yank-primary}). @xref{Primary Selection}.
This behavior is consistent with other X applications. Alternatively,
you can rebind @kbd{Mouse-2} to @code{mouse-yank-at-click}, which
-performs a yank at point.
+performs a yank at the position you click.
@vindex mouse-yank-at-point
If you change the variable @code{mouse-yank-at-point} to a
@vindex mouse-highlight
Some Emacs buffers include @dfn{buttons}, or @dfn{hyperlinks}:
-pieces of text that perform some action (e.g.@: following a reference)
-when activated (e.g.@: by clicking on them). Usually, a button's text
+pieces of text that perform some action (e.g., following a reference)
+when activated (e.g., by clicking on them). Usually, a button's text
is visually highlighted: it is underlined, or a box is drawn around
it. If you move the mouse over a button, the shape of the mouse
cursor changes and the button lights up. If you change the variable
between two side-by-side mode lines, you can move the vertical
boundary to the left or right.
+ Note that resizing windows is affected by the value of
+@code{window-resize-pixelwise}, see @ref{Split Window}.
+
@node Creating Frames
@section Creating Frames
@cindex creating frames
@kindex C-x 5 1
@findex delete-other-frames
Delete all frames on the current terminal, except the selected one.
+
+@item M-<F10>
+@kindex M-<F10>
+@findex toggle-frame-maximized
+Toggle the maximization state of the current frame. When a frame is
+maximized, it fills the screen.
+
+@item <F11>
+@kindex <F11>
+@findex toggle-frame-fullscreen
+Toggle fullscreen mode for the current frame. (The difference
+between ``fullscreen'' and ``maximized'' is normally that the former
+hides window manager decorations, giving slightly more screen space to
+Emacs itself.)
@end table
+@vindex frame-resize-pixelwise
+ Note that with some window managers you may have to customize the
+variable @code{frame-resize-pixelwise} to a non-@code{nil} value in
+order to make a frame truly ``maximized'' or ``fullscreen''. This
+variable, when set to a non-@code{nil} value, in general allows
+resizing frames at pixel resolution, rather than in integral multiples
+of lines and columns.
+
The @kbd{C-x 5 0} (@code{delete-frame}) command deletes the selected
frame. However, it will refuse to delete the last frame in an Emacs
session, to prevent you from losing the ability to interact with the
@cindex fonts
By default, Emacs displays text on graphical displays using a
-12-point monospace font. There are several different ways to specify
+10-point monospace font. There are several different ways to specify
a different font:
@itemize
@item
-Click on @samp{Set Default Font} in the @samp{Options} menu. To save
-this for future sessions, click on @samp{Save Options} in the
+Click on @samp{Set Default Font} in the @samp{Options} menu. This
+makes the selected font the default on all existing graphical frames.
+To save this for future sessions, click on @samp{Save Options} in the
@samp{Options} menu.
@item
'(font . "DejaVu Sans Mono-10"))
@end example
+@noindent
+This makes the font the default on all graphical frames created after
+restarting Emacs with that init file.
+
@cindex X defaults file
@cindex X resources file
@item
@cindex X Logical Font Description
The third way to specify a font is to use an @dfn{XLFD} (@dfn{X
Logical Font Description}). This is the traditional method for
-specifying fonts under X. Each XLFD consists of fourteen words or
+specifying fonts under X@. Each XLFD consists of fourteen words or
numbers, separated by dashes, like this:
@example
character. However, matching is implementation-dependent, and can be
inaccurate when wildcards match dashes in a long name. For reliable
results, supply all 14 dashes and use wildcards only within a field.
-Case is insignificant in an XLFD. The syntax for an XLFD is as
+Case is insignificant in an XLFD@. The syntax for an XLFD is as
follows:
@example
@item maker
The name of the font manufacturer.
@item family
-The name of the font family (e.g.@: @samp{courier}).
+The name of the font family (e.g., @samp{courier}).
@item weight
The font weight---normally either @samp{bold}, @samp{medium} or
@samp{light}. Some font names support other values.
hiding its contents.
You navigate through the speedbar using the keyboard, too. Typing
-@kbd{RET} while point is on a line in the speedbar is equivalent to
-clicking the item on the current line, and @kbd{SPC} expands or
+@key{RET} while point is on a line in the speedbar is equivalent to
+clicking the item on the current line, and @key{SPC} expands or
contracts the item. @kbd{U} displays the parent directory of the
current directory. To copy, delete, or rename the file on the current
line, type @kbd{C}, @kbd{D}, and @kbd{R} respectively. To create a
@section Scroll Bars
@cindex Scroll Bar mode
@cindex mode, Scroll Bar
+@cindex Vertical Scroll Bar
- On graphical displays, there is a @dfn{scroll bar} on the side of
-each Emacs window. Clicking @kbd{Mouse-1} on the scroll bar's up and
-down buttons scrolls the window by one line at a time. Clicking
+ On graphical displays, there is a @dfn{vertical scroll bar} on the
+side of each Emacs window. Clicking @kbd{Mouse-1} on the scroll bar's
+up and down buttons scrolls the window by one line at a time. Clicking
@kbd{Mouse-1} above or below the scroll bar's inner box scrolls the
window by nearly the entire height of the window, like @kbd{M-v} and
@kbd{C-v} respectively (@pxref{Moving Point}). Dragging the inner box
@findex scroll-bar-mode
@findex toggle-scroll-bar
- To toggle the use of scroll bars, type @kbd{M-x scroll-bar-mode}.
-This command applies to all frames, including frames yet to be
-created. To toggle scroll bars for just the selected frame, use the
-command @kbd{M-x toggle-scroll-bar}.
+ To toggle the use of vertical scroll bars, type @kbd{M-x
+scroll-bar-mode}. This command applies to all frames, including frames
+yet to be created. To toggle vertical scroll bars for just the selected
+frame, use the command @kbd{M-x toggle-scroll-bar}.
@vindex scroll-bar-mode
- To control the use of scroll bars at startup, customize the variable
-@code{scroll-bar-mode}. Its value should be either @code{right} (put
-scroll bars on the right side of windows), @code{left} (put them on
-the left), or @code{nil} (disable scroll bars). By default, Emacs
-puts scroll bars on the right if it was compiled with GTK+ support on
-the X Window System, and on MS-Windows or Mac OS; Emacs puts scroll
-bars on the left if compiled on the X Window System without GTK+
-support (following the old convention for X applications).
+ To control the use of vertical scroll bars at startup, customize the
+variable @code{scroll-bar-mode}. Its value should be either
+@code{right} (put scroll bars on the right side of windows), @code{left}
+(put them on the left), or @code{nil} (disable vertical scroll bars).
+By default, Emacs puts scroll bars on the right if it was compiled with
+GTK+ support on the X Window System, and on MS-Windows or Mac OS; Emacs
+puts scroll bars on the left if compiled on the X Window System without
+GTK+ support (following the old convention for X applications).
@vindex scroll-bar-width
-@cindex width of the scroll bar
+@cindex width of the vertical scroll bar
You can also use the X resource @samp{verticalScrollBars} to enable
or disable the scroll bars (@pxref{Resources}). To control the scroll
bar width, change the @code{scroll-bar-width} frame parameter
(@pxref{Frame Parameters,,, elisp, The Emacs Lisp Reference Manual}).
+@vindex scroll-bar-adjust-thumb-portion
+@cindex overscrolling
+If you're using Emacs on X (with GTK+ or Motif), you can customize the
+variable @code{scroll-bar-adjust-thumb-portion} to control
+@dfn{overscrolling} of the scroll bar, i.e. dragging the thumb down even
+when the end of the buffer is visible. If its value is
+non-@code{nil}, the scroll bar can be dragged downwards even if the
+end of the buffer is shown; if @code{nil}, the thumb will be at the
+bottom when the end of the buffer is shown. You can not over-scroll
+when the entire buffer is visible.
+
+@cindex scroll-bar face
+ The visual appearance of the scroll bars is controlled by the
+@code{scroll-bar} face.
+
+@cindex Horizontal Scroll Bar
+@cindex Horizontal Scroll Bar mode
+ On graphical displays with toolkit support, Emacs may also supply a
+@dfn{horizontal scroll bar} on the bottom of each window. Clicking
+@kbd{Mouse-1} on the that scroll bar's left and right buttons scrolls
+the window horizontally by one column at a time. Clicking @kbd{Mouse-1}
+on the left or right of the scroll bar's inner box scrolls the window by
+four columns. Dragging the inner box scrolls the window continuously.
+
+ Note that such horizontal scrolling can make the window's position of
+point disappear on the left or the right. Typing a character to insert
+text or moving point with a keyboard command will usually bring it back
+into view.
+
+@findex horizontal-scroll-bar-mode
+ To toggle the use of horizontal scroll bars, type @kbd{M-x
+horizontal-scroll-bar-mode}. This command applies to all frames,
+including frames yet to be created. To toggle horizontal scroll bars
+for just the selected frame, use the command @kbd{M-x
+toggle-horizontal-scroll-bar}.
+
+@vindex horizontal-scroll-bar-mode
+ To control the use of horizontal scroll bars at startup, customize the
+variable @code{horizontal-scroll-bar-mode}.
+
+@vindex scroll-bar-height
+@cindex height of the horizontal scroll bar
+ You can also use the X resource @samp{horizontalScrollBars} to enable
+or disable horizontal scroll bars (@pxref{Resources}). To control the
+scroll bar height, change the @code{scroll-bar-height} frame parameter
+(@pxref{Frame Parameters,,, elisp, The Emacs Lisp Reference Manual}).
+
@node Drag and Drop
@section Drag and Drop
@cindex drag and drop
face, and by X resources (@pxref{X Resources}).
@dfn{GUD tooltips} are special tooltips that show the values of
-variables when debugging a program with GUD. @xref{Debugger
+variables when debugging a program with GUD@. @xref{Debugger
Operation}.
@node Mouse Avoidance
@table @code
@item banish
-Move the mouse to the upper-right corner on any key-press;
+Move the pointer to a corner of the frame on any key-press. You can
+customize the variable @code{mouse-avoidance-banish-position} to
+specify where the pointer goes when it is banished.
@item exile
-Move the mouse to the corner only if the cursor gets too close,
-and allow it to return once the cursor is out of the way;
+Banish the pointer only if the cursor gets too close, and allow it to
+return once the cursor is out of the way.
@item jump
-If the cursor gets too close to the mouse, displace the mouse
-a random distance & direction;
+If the cursor gets too close to the pointer, displace the pointer by a
+random distance and direction.
@item animate
-As @code{jump}, but shows steps along the way for illusion of motion;
+As @code{jump}, but shows steps along the way for illusion of motion.
@item cat-and-mouse
-The same as @code{animate};
+The same as @code{animate}.
@item proteus
As @code{animate}, but changes the shape of the mouse pointer too.
@end table