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[Emacs] Refactor font resizing

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Ivan Malison 2016-10-06 18:24:41 -07:00
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1 changed files with 13 additions and 15 deletions
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dotfiles/emacs.d/README.org
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@ -590,31 +590,29 @@ the ~:around~ keyword of advice-add.
(* (cos f2) (cos f1) (imalison:sin2 (/ (- l2 l1) 2))) ))))))))
#+END_SRC
** Font Size
This was taken from [[http://emacs.stackexchange.com/questions/7583/transiently-adjust-text-size-in-mode-line-and-minibuffer][here]]. It is primarily invoked from a hydra defined below. It would be cool if it got the default font size from whatever the default font was but it does not currently do that.
This was taken from [[http://emacs.stackexchange.com/questions/7583/transiently-adjust-text-size-in-mode-line-and-minibuffer][here]] but it has diverged significantly from the original.
#+BEGIN_SRC emacs-lisp
(setq imalison:default-font-size-pt 88)
(defvar imalison:default-font-size-pt 120)
(defun imalison:font-size-adj (&optional arg)
"The default C-x C-0/-/= bindings do an excellent job of font resizing.
They, though, do not change the font sizes for the text outside the buffer,
example in mode-line. Below function changes the font size in those areas too.
M-<NUM> M-x imalison:font-size-adj increases font size by NUM points if NUM is +ve,
decreases font size by NUM points if NUM is -ve
resets font size if NUM is 0."
(cl-defun imalison:set-font-size (&optional (arg 10))
(interactive "p")
(let ((current-height
(plist-get (custom-face-attributes-get 'default nil) :height)))
(set-face-attribute 'default nil :height
(+ current-height arg))))
(defun imalison:font-size-incr ()
(interactive)
(imalison:set-font-size +10))
(defun imalison:font-size-decr ()
(interactive)
(imalison:set-font-size -10))
(defun imalison:font-size-incr () (interactive) (imalison:font-size-adj +10))
(defun imalison:font-size-decr () (interactive) (imalison:font-size-adj -10))
(defun imalison:font-size-reset () (interactive)
(set-face-attribute 'default nil
:height imalison:default-font-size-pt))
(defun imalison:font-size-reset ()
(interactive)
(set-face-attribute 'default nil
:height imalison:default-font-size-pt))
#+END_SRC
** Message Result Builder
This macro is useful when writing emacs-lisp. It creates a new interactive command that shows you the result of evaluating a function, with optionally provided arguments.