This repository has been archived on 2024-10-22. You can view files and clone it, but cannot push or open issues or pull requests.
spacemacs/layers/+spacemacs/spacemacs-ui-visual/local/zoom-frm/zoom-frm.el
justbur aa4b6e6861 Partition spacemacs layer into finer categories
This will allow people using spacemacs-base to have finer control over
what additional packages they install on top of base.

The proposed split is as follows

spacemacs-editing:
 - aggressive-indent
 - avy
 - bracketed-paste
 - clean-aindent-mode
 - eval-sexp-fu
 - expand-region
 - hexl
 - hungry-delete
 - iedit
 - lorem-ipsum
 - move-text
 - neotree
 - pcre2el
 - smartparens

spacemacs-editing-visual-packages:
 - adaptive-wrap
 - auto-highlight-symbol
 - highlight-indentation
 - highlight-numbers
 - highlight-parentheses
 - hl-anything
 - indent-guide
 - linum-relative
 - rainbow-delimiters
 - volatile-highlights

spacemacs-evil-packages:
 - evil-anzu
 - evil-args
 - evil-exchange
 - evil-iedit-state
 - evil-indent-plus
 - evil-jumper
 - evil-lisp-state
 - evil-mc
 - evil-nerd-commenter
 - evil-matchit
 - evil-numbers
 - evil-search-highlight-persist
 - evil-terminal-cursor-changer
 - evil-tutor
 - evil-unimpaired

spacemacs-language-packages:
 - define-word
 - google-translate

spacemacs-ui-packages:
 - ace-link
 - ace-window
 - buffer-move
 - centered-cursor
 - desktop
 - doc-view
 - flx-ido
 - info+
 - open-junk-file
 - window-numbering

spacemacs-ui-visual-packages:
 - fancy-battery
 - golden-ratio
 - leuven-theme
 - neotree
 - smooth-scrolling
 - spaceline
 - vi-tilde-fringe
 - zoom-frm
2016-01-31 00:59:07 -05:00

439 lines
18 KiB
EmacsLisp

;;; zoom-frm.el --- Commands to zoom frame font size.
;;
;; Filename: zoom-frm.el
;; Description: Commands to zoom frame font size.
;; Author: Drew Adams
;; Maintainer: Drew Adams (concat "drew.adams" "@" "oracle" ".com")
;; Copyright (C) 2005-2015, Drew Adams, all rights reserved.
;; Created: Fri Jan 07 10:24:35 2005
;; Version: 0
;; Package-Requires: ((frame-fns "0") (frame-cmds "0"))
;; Last-Updated: Thu Jan 1 11:24:13 2015 (-0800)
;; By: dradams
;; Update #: 322
;; URL: http://www.emacswiki.org/zoom-frm.el
;; Doc URL: http://emacswiki.org/SetFonts
;; Keywords: frames, extensions, convenience
;; Compatibility: GNU Emacs: 20.x, 21.x, 22.x, 23.x, 24.x, 25.x
;;
;; Features that might be required by this library:
;;
;; `avoid', `frame-cmds', `frame-fns', `misc-fns', `strings',
;; `thingatpt', `thingatpt+'.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Commentary:
;;
;; Commands to zoom into and out of text. They zoom a frame or a
;; buffer, so that the text appears larger or smaller.
;;
;; Commands `zoom-in', `zoom-out', and `zoom-in/out' do both kinds of
;; zooming. They can behave like command `text-scale-adjust',
;; zooming a buffer wherever it is displayed, or they can zoom an
;; entire single frame (all of its windows). Hit `C-u' at any time
;; while using these commands to toggle between buffer and frame
;; zooming.
;;
;; Because it is a more general replacement for `text-scale-adjust',
;; I suggest you bind `zoom-in/out' to the keys bound by default to
;; `text-scale-adjust': `C-x C-+', `C-x C-=', `C-x C--', and `C-x
;; C-0'.
;;
;; It is also handy to use a mouse button or wheel for zooming, hence
;; the mouse binding suggestions. For example, binding `zoom-in' and
;; `zoom-out' to mouse wheel events gives you the zooming effect you
;; are perhaps used to in a Web browser.
;;
;; User option `zoom-frame/buffer' determines which kind of zooming
;; (frame or buffer) is used by default. You can customize this
;; option, but (in Emacs 23 or later) you can also toggle it just by
;; providing a prefix arg (`C-u') to `zoom-in/out', `zoom-in', or
;; `zoom-out'.
;;
;; Note about saving changes made dynamically using the commands
;; defined here:
;;
;; Some of the commands defined here change frame properties. You
;; can save any changes you have made, by using Customize. To
;; visit a Customize buffer of all unsaved changes you have made,
;; use command `customize-customized'.
;;
;; Frame parameter changes, such as font size, can be saved for
;; future use by all frames or all frames of a certain kind. For
;; that, you must change the frame parameters of the correponding
;; frame-alist variable.
;;
;; There is no single variable for saving changes to parameters of
;; the current frame. Instead, there are several different
;; frame-alist variables, which you can use to define different
;; kinds of frames. These include: `default-frame-alist',
;; `initial-frame-alist', and `special-display-frame-alist'. The
;; complete list of such frame alist variables is available using
;; function `frame-alist-var-names', defined in library
;; `frame-cmds.el'.
;;
;; Example: Suppose you change the font size of a frame and want to
;; make that the default font size for new frames in the future.
;; You will need to update the value of variable
;; `default-frame-alist' to use the `font' parameter setting of the
;; changed frame.
;;
;; You can easily copy one or all parameter values from any given
;; frame to any frame alist (such as `default-frame-alist'), by
;; using the commands `set-frame-alist-parameter-from-frame' and
;; `set-all-frame-alist-parameters-from-frame'. Those commands are
;; defined in library `frame-cmds.el'.
;;
;;
;; Commands defined here:
;;
;; `toggle-zoom-frame', `zoom-all-frames-in',
;; `zoom-all-frames-out', `zoom-frm-in', `zoom-frm-out',
;; `zoom-frm-unzoom', `zoom-in', `zoom-in/out' (Emacs 23+),
;; `zoom-out'.
;;
;;
;; User options (variables) defined here:
;;
;; `frame-zoom-font-difference', `zoom-frame/buffer' (Emacs 23+).
;;
;;
;; Put this in your init file (`~/.emacs'): (require 'zoom-frm)
;;
;; Suggested key bindings:
;;
;; Emacs 23 and later:
;;
;; (define-key ctl-x-map [(control ?+)] 'zoom-in/out)
;; (define-key ctl-x-map [(control ?-)] 'zoom-in/out)
;; (define-key ctl-x-map [(control ?=)] 'zoom-in/out)
;; (define-key ctl-x-map [(control ?0)] 'zoom-in/out)
;;
;; Any Emacs version:
;;
;; (global-set-key (if (boundp 'mouse-wheel-down-event) ; Emacs 22+
;; (vector (list 'control
;; mouse-wheel-down-event))
;; [C-mouse-wheel]) ; Emacs 20, 21
;; 'zoom-in)
;; (when (boundp 'mouse-wheel-up-event) ; Emacs 22+
;; (global-set-key (vector (list 'control mouse-wheel-up-event))
;; 'zoom-out))
;;
;; (global-set-key [S-mouse-1] 'zoom-in)
;; (global-set-key [C-S-mouse-1] 'zoom-out)
;; ;; Get rid of `mouse-set-font' or `mouse-appearance-menu':
;; (global-set-key [S-down-mouse-1] nil)
;;
;; The first two of the mouse bindings mean that in Emacs 22 or later
;; you can hold the Control key and rotate the mouse wheel to zoom in
;; and out, just as you might do in a Web browser.
;;
;; (In Emacs 20 and 21, Control plus mouse wheeling zooms in, but to
;; zoom out you need to use `C--' before wheeling with Control. This
;; is because Emacs 20 and 21 do not have separate events for the
;; mouse wheel directions, and it is the prefix arg, not the wheel
;; direction, that determines the effect.)
;;
;;
;; See also these files for other frame commands:
;;
;; `autofit-frame.el' - Automatically fit each frame to its
;; selected window. Uses `fit-frame.el'.
;;
;; `fit-frame.el' - 1) Fit a frame to its selected window.
;; 2) Incrementally resize a frame.
;;
;; `doremi-frm.el' - Incrementally adjust frame properties
;; using arrow keys and/or mouse wheel.
;;
;; `frame-cmds.el' - Miscellaneous frame and window commands.
;;
;; `thumb-frm.el' - Shrink frames to a thumbnail size and
;; restore them again.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Change Log:
;;
;; 2013/12/31 dadams
;; zoom-in/out: Use set-transient-map, if defined.
;; 2013/09//29 dadams
;; zoom-in/out: Only for Emacs 24.3+ (needs set-temporary-overlay-map).
;; 2013/09/13 dadams
;; Added: zoom-all-frames-in, zoom-all-frames-out.
;; 2013/04/21 dadams
;; Added: zoom-in/out.
;; 2011/01/04 dadams
;; Added autoload cookies for defgroup and defcustom.
;; 2010/07/06 dadams
;; zoom-(in|out): Put doc strings before interactive spec. Thx to Yidong Chong.
;; 2009/06/11 dadams
;; Added buffer zooming, for Emacs 23.
;; Added zoom-(in|out), group zoom, zoom-frame/buffer.
;; 2006/01/07 dadams
;; Added :link for sending bug report.
;; 2006/01/06 dadams
;; frame-zoom-font-difference: Changed :group to Frame-Commands. Added :link.
;; 2005/01/18 dadams
;; Changed default value of frame-zoom-font-difference.
;; Added Note on saving changes.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
;; Floor, Boston, MA 02110-1301, USA.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;; Code:
(require 'frame-cmds) ;; enlarge-font
(defvar zoom-frame/buffer) ;; Defined here for Emacs 22+.
;;;;;;;;;;;;;;;;;;;;;;;;
;;; USER OPTIONS (VARIABLES) ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;###autoload
(defgroup zoom nil
"Zoom a frame or buffer."
:group 'frames :group 'Frame-Commands ; Defined in `frame-cmds.el'.
:link `(url-link :tag "Send Bug Report"
,(concat "mailto:" "drew.adams" "@" "oracle" ".com?subject=\
zoom-frm.el bug: \
&body=Describe bug here, starting with `emacs -q'. \
Don't forget to mention your Emacs and library versions."))
:link '(url-link :tag "Other Libraries by Drew"
"http://www.emacswiki.org/DrewsElispLibraries")
:link '(url-link :tag "Download"
"http://www.emacswiki.org/emacs-en/download/zoom-frm.el")
:link '(url-link :tag "Description"
"http://www.emacswiki.org/SetFonts#ChangingFontSize")
:link '(emacs-commentary-link :tag "Commentary" "zoom-frm"))
;;;###autoload
(defcustom frame-zoom-font-difference 1
"*Number of points to change the frame font size when zooming.
This applies to commands `zoom-in/out', `zoom-in', `zoom-out',
`zoom-frm-in', and `zoom-frm-out' when zooming a frame.
The absolute value of the value must be less than the current font
size for the frame, because the new font size cannot be less than one
point."
:type 'integer :group 'zoom)
(when (> emacs-major-version 22)
(defcustom zoom-frame/buffer 'frame
"*What to zoom: current frame or current buffer.
See command `zoom-in/out', `zoom-in', or `zoom-out'."
:type '(choice (const :tag "Zoom frame" frame) (const :tag "Zoom buffer" buffer))
:group 'zoom))
;;; FUNCTIONS ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(unless (> emacs-major-version 22) (defalias 'zoom-in 'zoom-frm-in))
;;;###autoload
(defun zoom-frm-in (&optional frame flip)
"Zoom FRAME in by `frame-zoom-font-difference', making text larger.
If `frame-zoom-font-difference' is negative, make text smaller.
With prefix argument FLIP, reverse the direction:
if `frame-zoom-font-difference' is positive, then make text smaller.
This is equal but opposite to `zoom-frm-out'."
(interactive (list (selected-frame) current-prefix-arg))
(setq frame (or frame (selected-frame)))
(let ((zoom-factor (frame-parameter frame 'zoomed))
(increment (if flip (- frame-zoom-font-difference) frame-zoom-font-difference)))
(unless zoom-factor (setq zoom-factor 0))
(setq zoom-factor (+ zoom-factor increment))
(enlarge-font increment frame)
(modify-frame-parameters frame (list (cons 'zoomed zoom-factor)))))
(unless (> emacs-major-version 22) (defalias 'zoom-out 'zoom-frm-out))
;;;###autoload
(defun zoom-frm-out (&optional frame flip)
"Zoom FRAME out by `frame-zoom-font-difference', making text smaller.
If `frame-zoom-font-difference' is negative, make text larger.
With prefix argument FLIP, reverse the direction:
if `frame-zoom-font-difference' is positive, then make text larger.
This is equal but opposite to `zoom-frm-in'."
(interactive (list (selected-frame) current-prefix-arg))
(setq frame (or frame (selected-frame)))
(let ((frame-zoom-font-difference (- frame-zoom-font-difference)))
(zoom-frm-in frame flip)))
;;;###autoload
(defun zoom-frm-unzoom (&optional frame)
"Cancel zoom of FRAME."
(interactive)
(setq frame (or frame (selected-frame)))
(let ((zoom-factor (frame-parameter frame 'zoomed)))
(if (not zoom-factor)
(error "Frame is not zoomed")
(enlarge-font (- zoom-factor) frame)
(modify-frame-parameters frame '((zoomed))))))
;;;###autoload
(defun toggle-zoom-frame (&optional frame)
"Alternately zoom/unzoom FRAME by `frame-zoom-font-difference'."
(interactive)
(setq frame (or frame (selected-frame)))
(if (frame-parameter frame 'zoomed)
(zoom-frm-unzoom frame)
(zoom-frm-in frame)))
(when (> emacs-major-version 22)
(defun zoom-in (arg)
"Zoom current frame or buffer in.
With a prefix arg, toggle between zooming frame and zooming buffer.
Frame zooming uses command `zoom-frm-in'.
Buffer zooming uses command `text-scale-increase'."
(interactive "P")
(when arg
(setq zoom-frame/buffer (if (eq zoom-frame/buffer 'frame) 'buffer 'frame)))
(if (eq zoom-frame/buffer 'frame)
(zoom-frm-in)
(with-current-buffer
(if (string-match "mouse" (format "%S" (event-basic-type
last-command-event)))
(window-buffer (posn-window (event-start last-command-event)))
(current-buffer))
(text-scale-increase 1))))
(defun zoom-out (arg)
"Zoom current frame or buffer out.
With a prefix arg, toggle between zooming frame and zooming buffer.
Frame zooming uses command `zoom-frm-out'.
Buffer zooming uses command `text-scale-decrease'."
(interactive "P")
(when arg
(setq zoom-frame/buffer (if (eq zoom-frame/buffer 'frame) 'buffer 'frame)))
(if (eq zoom-frame/buffer 'frame)
(zoom-frm-out)
(with-current-buffer
(if (string-match "mouse" (format "%S" (event-basic-type
last-command-event)))
(window-buffer (posn-window (event-start last-command-event)))
(current-buffer))
(text-scale-decrease 1))))
(when (or (fboundp 'set-transient-map) ; Emacs 24.4+
(fboundp 'set-temporary-overlay-map)) ; Emacs 24.3
(defun zoom-in/out (arg)
"Zoom current frame or buffer in or out.
A prefix arg determines the behavior, as follows:
none : Use 1 as the zoom amount.
plain `C-u': Toggle between zooming frame and zooming buffer.
0 : Unzoom: reset size to the default.
other : Use the numeric value as the zoom amount.
Similar to the behavior of command `text-scale-adjust', you can
continue to use any of the keys `+', `-', `0', and `C-u' repeatedly.
The zoom amount from the initial key sequence is used each time.
Example: `C-3 C-x C-- C-- C-- C--' zooms out 4 times with a zoom
amount of 3 each time.
The zoom amount for frame zooming is a point-size increment/decrement.
The zoom amount for buffer zooming is a number of text-scaling steps.
Frame zooming uses command `zoom-frm-in'.
Buffer zooming uses command `text-scale-increase'.
User option `zoom-frame/buffer' determines the default zoom type:
frame or buffer. If the option value is `buffer' and you never use
plain `C-u' with this command then it acts like `text-scale-adjust'."
(interactive "P")
(when (or (equal arg '(4)) (eq ?\025 last-command-event)) ; `C-u'
(setq zoom-frame/buffer (if (eq zoom-frame/buffer 'frame) 'buffer 'frame)
arg 1)
(message "Zooming %sS from now on" (upcase (symbol-name zoom-frame/buffer)))
(sit-for 1))
(let* ((ev last-command-event)
(echo-keystrokes nil)
(base (event-basic-type ev))
(step (if (or (equal arg '(4)) (eq ?\025 last-command-event)) ; C-u
'C-U-WAS-USED
(setq arg (prefix-numeric-value arg))
(case base
((?+ ?=) arg)
(?- (- arg))
(?0 0)
(t arg)))))
(message (if (eq step 0)
"Reset to default size. Use +/- to zoom in/out"
"Use +/- to zoom in/out, 0 to reset (unzoom)"))
(unless (eq step 'C-U-WAS-USED)
(if (eq zoom-frame/buffer 'frame)
(if (eq step 0)
(zoom-frm-unzoom)
(let ((frame-zoom-font-difference step)) (zoom-frm-in)))
(with-current-buffer
(if (string-match "mouse" (format "%S" (event-basic-type last-command-event)))
(window-buffer (posn-window (event-start last-command-event)))
(current-buffer))
(text-scale-increase step))))
(let ((fun (if (fboundp 'set-transient-map)
#'set-transient-map
#'set-temporary-overlay-map)))
(funcall fun
(let ((map (make-sparse-keymap)))
(dolist (mods '(() (control)))
(dolist (key '(?- ?+ ?= ?0)) ; The `=' key is often unshifted `+' key.
(define-key map (vector (append mods (list key)))
`(lambda () (interactive) (zoom-in/out ',arg)))))
(define-key map "\C-u" `(lambda () (interactive) (zoom-in/out ',arg)))
map)))))))
;; These are not so useful, but some people might like them.
(when (fboundp 'set-face-attribute) ; Emacs 22+
(defun zoom-all-frames-in (&optional flip)
"Zoom all frames in by `frame-zoom-font-difference', making text larger.
If `frame-zoom-font-difference' is negative, make text smaller.
With prefix argument FLIP, reverse the direction:
if `frame-zoom-font-difference' is positive, then make text smaller.
This is equal but opposite to `zoom-all-frames-out'.
Note: This zooming is unaffected by `zoom-frm-unzoom'."
(interactive "P")
(let ((increment (if flip (- frame-zoom-font-difference) frame-zoom-font-difference)))
(set-face-attribute 'default nil
:height (+ (* 10 increment)
(face-attribute 'default :height nil 'default)))))
(defun zoom-all-frames-out (&optional flip)
"Zoom all frames out by `frame-zoom-font-difference', making text smaller.
If `frame-zoom-font-difference' is negative, make text larger.
With prefix argument FLIP, reverse the direction:
if `frame-zoom-font-difference' is positive, then make text larger.
This is equal but opposite to `zoom-frm-in'.
Note: This zooming is unaffected by `zoom-frm-unzoom'."
(interactive "P")
(let ((increment (if flip frame-zoom-font-difference (- frame-zoom-font-difference))))
(set-face-attribute 'default nil
:height (+ (* 10 increment)
(face-attribute 'default :height nil 'default))))))
;;;;;;;;;;;;;;;;;;;;;;;;;
(provide 'zoom-frm)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; zoom-frm.el ends here