Commit 986ce8de authored by Eli Zaretskii's avatar Eli Zaretskii

(Forcing Redisplay, Displaying Messages, Temporary Displays, Font Selection,

Auto Faces, Font Lookup, Fringe Indicators, Display Margins, Image Descriptors,
Showing Images, Image Cache, Button Types, Making Buttons, Manipulating
Buttons, Button Buffer Commands, Display Table Format, Glyphs): Remove
parent 00c44593
......@@ -94,7 +94,6 @@ at all if input is available before it starts. Most of the time, this
is exactly what you want. However, you can prevent preemption by
binding @code{redisplay-dont-pause} to a non-@code{nil} value.
@tindex redisplay-preemption-period
@defvar redisplay-preemption-period
This variable specifies how many seconds Emacs waits between checks
for new input during redisplay. (The default is 0.1 seconds.) If
......@@ -108,14 +107,13 @@ redisplay, and redisplay cannot be preempted by input.
with support for sub-second timers.
@end defvar
@tindex redisplay-dont-pause
@defvar redisplay-dont-pause
If this variable is non-@code{nil}, pending input does not
prevent or halt redisplay; redisplay occurs, and finishes,
regardless of whether input is available.
@end defvar
@tindex sit-for
@findex sit-for
You can request a display update, but only if no input is pending,
with @code{(sit-for 0)}. To force a display update even when input is
pending, use @code{(sit-for -1)}.
......@@ -257,7 +255,6 @@ To automatically display a message in the echo area or in a pop-buffer,
depending on its size, use @code{display-message-or-buffer} (see below).
@end defun
@tindex with-temp-message
@defmac with-temp-message message &rest body
This construct displays a message in the echo area temporarily, during
the execution of @var{body}. It displays @var{message}, executes
......@@ -288,7 +285,6 @@ support them, then @code{message-box} uses the echo area, like
@end defun
@defun display-message-or-buffer message &optional buffer-name not-this-window frame
@tindex display-message-or-buffer
This function displays the message @var{message}, which may be either a
string or a buffer. If it is shorter than the maximum height of the
echo area, as defined by @code{max-mini-window-height}, it is displayed
......@@ -1027,7 +1023,6 @@ selected.
@end defvar
@defvar temp-buffer-setup-hook
@tindex temp-buffer-setup-hook
This normal hook is run by @code{with-output-to-temp-buffer} before
evaluating @var{body}. When the hook runs, the temporary buffer is
current. This hook is normally set up with a function to put the
......@@ -2055,7 +2050,6 @@ functions. If you specify @var{frame}, they affect just that frame;
otherwise, they affect all frames as well as the defaults that apply to
new frames.
@tindex set-face-attribute
@defun set-face-attribute face frame &rest arguments
This function sets one or more attributes of face @var{face}
for frame @var{frame}. If @var{frame} is @code{nil}, it sets
......@@ -2078,7 +2072,6 @@ sets the attributes @code{:width}, @code{:weight} and @code{:underline}
to the corresponding values.
@end defun
@tindex face-attribute
@defun face-attribute face attribute &optional frame inherit
This returns the value of the @var{attribute} attribute of face
@var{face} on @var{frame}. If @var{frame} is @code{nil},
......@@ -2114,7 +2107,6 @@ For example,
with older Emacs versions, you can use the following functions to set
and examine the face attributes which existed in those versions.
@tindex face-attribute-relative-p
@defun face-attribute-relative-p attribute value
This function returns non-@code{nil} if @var{value}, when used as the
value of the face attribute @var{attribute}, is relative. This means
......@@ -2134,7 +2126,6 @@ For example:
prompts with @samp{Describe face (default = `default' face): }.
@end defun
@tindex merge-face-attribute
@defun merge-face-attribute attribute value1 value2
If @var{value1} is a relative value for the face attribute
@var{attribute}, returns it merged with the underlying value
......@@ -2323,7 +2314,6 @@ not available, you can specify a set of mappings for alternatives to
@defvar face-font-selection-order
@tindex face-font-selection-order
This variable specifies the order of importance of the face attributes
@code{:width}, @code{:height}, @code{:weight}, and @code{:slant}. The
value should be a list containing those four symbols, in order of
......@@ -2353,7 +2343,6 @@ quite right.
@end defvar
@defvar face-font-family-alternatives
@tindex face-font-family-alternatives
This variable lets you specify alternative font families to try, if a
given family is specified and doesn't exist. Each element should have
this form:
......@@ -2368,7 +2357,6 @@ family that does exist.
@end defvar
@defvar face-font-registry-alternatives
@tindex face-font-registry-alternatives
This variable lets you specify alternative font registries to try, if a
given registry is specified and doesn't exist. Each element should have
this form:
......@@ -2387,7 +2375,6 @@ them, since the use of too many or too big scalable fonts can crash
XFree86 servers.
@defvar scalable-fonts-allowed
@tindex scalable-fonts-allowed
This variable controls which scalable fonts to use. A value of
@code{nil}, the default, means do not use scalable fonts. @code{t}
means to use any scalable font that seems appropriate for the text.
......@@ -2488,7 +2475,6 @@ makes @code{modeline} an alias for the @code{mode-line} face.
This hook is used for automatically assigning faces to text in the
buffer. It is part of the implementation of Font-Lock mode.
@tindex fontification-functions
@defvar fontification-functions
This variable holds a list of functions that are called by Emacs
redisplay as needed to assign faces automatically to text in the buffer.
......@@ -2538,7 +2524,6 @@ many fonts match the pattern.
@end defun
@defun x-family-fonts &optional family frame
@tindex x-family-fonts
This function returns a list describing the available fonts for family
@var{family} on @var{frame}. If @var{family} is omitted or @code{nil},
this list applies to all families, and therefore, it contains all
......@@ -2569,7 +2554,6 @@ The result list is sorted according to the current face font sort order.
@end defun
@defun x-font-family-list &optional frame
@tindex x-font-family-list
This function returns a list of the font families available for
@var{frame}'s display. If @var{frame} is omitted or @code{nil}, it
describes the selected frame's display (@pxref{Input Focus}).
......@@ -2586,7 +2570,6 @@ non-@code{nil} if fonts of that family are fixed-pitch.
@end defun
@defvar font-list-limit
@tindex font-list-limit
This variable specifies maximum number of fonts to consider in font
matching. The function @code{x-family-fonts} will not return more than
that many fonts, and font selection will consider only that many fonts
......@@ -2803,7 +2786,6 @@ window fringe (on a graphic display) to indicate truncated or
continued lines, buffer boundaries, overlay arrow, etc.
@defopt indicate-empty-lines
@tindex indicate-empty-lines
@cindex fringes, and empty line indication
When this is non-@code{nil}, Emacs displays a special glyph in the
fringe of each empty line at the end of the buffer, on graphical
......@@ -3533,13 +3515,11 @@ them a nonzero width. The usual way to do that is to set these
@defvar left-margin-width
@tindex left-margin-width
This variable specifies the width of the left margin.
It is buffer-local in all buffers.
@end defvar
@defvar right-margin-width
@tindex right-margin-width
This variable specifies the width of the right margin.
It is buffer-local in all buffers.
@end defvar
......@@ -3552,14 +3532,12 @@ Thus, you can make changes take effect by calling
You can also set the margin widths immediately.
@defun set-window-margins window left &optional right
@tindex set-window-margins
This function specifies the margin widths for window @var{window}.
The argument @var{left} controls the left margin and
@var{right} controls the right margin (default @code{0}).
@end defun
@defun window-margins &optional window
@tindex window-margins
This function returns the left and right margins of @var{window}
as a cons cell of the form @code{(@var{left} . @var{right})}.
If @var{window} is @code{nil}, the selected window is used.
......@@ -3842,7 +3820,6 @@ mouse event; for instance, @code{[area4 mouse-1]} if the hot-spot's
@end table
@defun image-mask-p spec &optional frame
@tindex image-mask-p
This function returns @code{t} if image @var{spec} has a mask bitmap.
@var{frame} is the frame on which the image will be displayed.
@var{frame} @code{nil} or omitted means to use the selected frame
......@@ -4026,7 +4003,6 @@ background color.
@code{find-image} provide convenient ways to create image descriptors.
@defun create-image file-or-data &optional type data-p &rest props
@tindex create-image
This function creates and returns an image descriptor which uses the
data in @var{file-or-data}. @var{file-or-data} can be a file name or
a string containing the image data; @var{data-p} should be @code{nil}
......@@ -4049,7 +4025,6 @@ supported. Otherwise it returns an image descriptor.
@end defun
@defmac defimage symbol specs &optional doc
@tindex defimage
This macro defines @var{symbol} as an image name. The arguments
@var{specs} is a list which specifies how to display the image.
The third argument, @var{doc}, is an optional documentation string.
......@@ -4078,7 +4053,6 @@ as @code{nil}.
@end defmac
@defun find-image specs
@tindex find-image
This function provides a convenient way to find an image satisfying one
of a list of image specifications @var{specs}.
......@@ -4096,7 +4070,6 @@ The image is looked for in @code{image-load-path}.
@end defun
@defvar image-load-path
@tindex image-load-path
This variable's value is a list of locations in which to search for
image files. If an element is a string or a variable symbol whose
value is a string, the string is taken to be the name of a directory
......@@ -4118,7 +4091,6 @@ should specify the image as follows:
@end defvar
@defun image-load-path-for-library library image &optional path no-error
@tindex image-load-path-for-library
This function returns a suitable search path for images used by the
Lisp package @var{library}.
......@@ -4225,7 +4197,6 @@ This removes only images that were put into @var{buffer} the way
@end defun
@defun image-size spec &optional pixels frame
@tindex image-size
This function returns the size of an image as a pair
@w{@code{(@var{width} . @var{height})}}. @var{spec} is an image
specification. @var{pixels} non-@code{nil} means return sizes
......@@ -4237,7 +4208,6 @@ Focus}).
@end defun
@defvar max-image-size
@tindex max-image-size
This variable is used to define the maximum size of image that Emacs
will load. Emacs will refuse to load (and display) any image that is
larger than this limit.
......@@ -4267,7 +4237,6 @@ with cached image specifications using @code{equal}. This means that
all images with equal specifications share the same image in the cache.
@defvar image-cache-eviction-delay
@tindex image-cache-eviction-delay
This variable specifies the number of seconds an image can remain in the
cache without being displayed. When an image is not displayed for this
length of time, Emacs removes it from the image cache.
......@@ -4278,7 +4247,6 @@ debugging.
@end defvar
@defun clear-image-cache &optional frame
@tindex clear-image-cache
This function clears the image cache. If @var{frame} is non-@code{nil},
only the cache for that frame is cleared. Otherwise all frames' caches
are cleared.
......@@ -4400,7 +4368,6 @@ so that it's easy to define special-purpose types of buttons for
specific tasks.
@defun define-button-type name &rest properties
@tindex define-button-type
Define a `button type' called @var{name}. The remaining arguments
form a sequence of @var{property value} pairs, specifying default
property values for buttons with this type (a button's type may be set
......@@ -4449,13 +4416,11 @@ defines such a property).
(@pxref{Overlays}) to hold the button properties:
@defun make-button beg end &rest properties
@tindex make-button
This makes a button from @var{beg} to @var{end} in the
current buffer, and returns it.
@end defun
@defun insert-button label &rest properties
@tindex insert-button
This insert a button with the label @var{label} at point,
and returns it.
@end defun
......@@ -4469,13 +4434,11 @@ numbers of buttons. Both functions return the position of the start
of the new button:
@defun make-text-button beg end &rest properties
@tindex make-text-button
This makes a button from @var{beg} to @var{end} in the current buffer, using
text properties.
@end defun
@defun insert-text-button label &rest properties
@tindex insert-text-button
This inserts a button with the label @var{label} at point, using text
@end defun
......@@ -4495,27 +4458,22 @@ Such an object is passed as the first argument to a button's
invocation function when it is invoked.
@defun button-start button
@tindex button-start
Return the position at which @var{button} starts.
@end defun
@defun button-end button
@tindex button-end
Return the position at which @var{button} ends.
@end defun
@defun button-get button prop
@tindex button-get
Get the property of button @var{button} named @var{prop}.
@end defun
@defun button-put button prop val
@tindex button-put
Set @var{button}'s @var{prop} property to @var{val}.
@end defun
@defun button-activate button &optional use-mouse-action
@tindex button-activate
Call @var{button}'s @code{action} property (i.e., invoke it). If
@var{use-mouse-action} is non-@code{nil}, try to invoke the button's
@code{mouse-action} property instead of @code{action}; if the button
......@@ -4523,38 +4481,31 @@ has no @code{mouse-action} property, use @code{action} as normal.
@end defun
@defun button-label button
@tindex button-label
Return @var{button}'s text label.
@end defun
@defun button-type button
@tindex button-type
Return @var{button}'s button-type.
@end defun
@defun button-has-type-p button type
@tindex button-has-type-p
Return @code{t} if @var{button} has button-type @var{type}, or one of
@var{type}'s subtypes.
@end defun
@defun button-at pos
@tindex button-at
Return the button at position @var{pos} in the current buffer, or @code{nil}.
@end defun
@defun button-type-put type prop val
@tindex button-type-put
Set the button-type @var{type}'s @var{prop} property to @var{val}.
@end defun
@defun button-type-get type prop
@tindex button-type-get
Get the property of button-type @var{type} named @var{prop}.
@end defun
@defun button-type-subtype-p type supertype
@tindex button-type-subtype-p
Return @code{t} if button-type @var{type} is a subtype of @var{supertype}.
@end defun
......@@ -4580,7 +4531,6 @@ will also activate the @code{push-button} command.
@xref{Links and Mouse-1}.
@deffn Command push-button &optional pos use-mouse-action
@tindex push-button
Perform the action specified by a button at location @var{pos}.
@var{pos} may be either a buffer position or a mouse-event. If
@var{use-mouse-action} is non-@code{nil}, or @var{pos} is a
......@@ -4594,7 +4544,6 @@ nothing and return @code{nil}, otherwise return @code{t}.
@end deffn
@deffn Command forward-button n &optional wrap display-message
@tindex forward-button
Move to the @var{n}th next button, or @var{n}th previous button if
@var{n} is negative. If @var{n} is zero, move to the start of any
button at point. If @var{wrap} is non-@code{nil}, moving past either
......@@ -4605,7 +4554,6 @@ is skipped over. Returns the button found.
@end deffn
@deffn Command backward-button n &optional wrap display-message
@tindex backward-button
Move to the @var{n}th previous button, or @var{n}th next button if
@var{n} is negative. If @var{n} is zero, move to the start of any
button at point. If @var{wrap} is non-@code{nil}, moving past either
......@@ -4616,14 +4564,12 @@ is skipped over. Returns the button found.
@end deffn
@defun next-button pos &optional count-current
@tindex next-button
Return the next button after position @var{pos} in the current buffer.
If @var{count-current} is non-@code{nil}, count any button at
@var{pos} in the search, instead of starting at the next button.
@end defun
@defun previous-button pos &optional count-current
@tindex previous-button
Return the @var{n}th button before position @var{pos} in the current
buffer. If @var{count-current} is non-@code{nil}, count any button at
@var{pos} in the search, instead of starting at the next button.
......@@ -5216,13 +5162,11 @@ This function stores @var{value} in the extra slot @var{slot} of
@end defun
@defun describe-display-table display-table
@tindex describe-display-table
This function displays a description of the display table
@var{display-table} in a help buffer.
@end defun
@deffn Command describe-current-display-table
@tindex describe-current-display-table
This command displays a description of the current display table in a
help buffer.
@end deffn
......@@ -5328,7 +5272,6 @@ This glyph is simple.
@end table
@defun create-glyph string
@tindex create-glyph
This function returns a newly-allocated glyph code which is set up to
display by sending @var{string} to the terminal.
@end defun
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