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Improve font adjustment

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Ivan Malison 2016-09-12 15:33:09 -07:00
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dotfiles/emacs.d/README.org
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@ -570,7 +570,7 @@ the ~:around~ keyword of advice-add.
** Font Size ** 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]]. 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.
#+BEGIN_SRC emacs-lisp #+BEGIN_SRC emacs-lisp
(setq imalison:default-font-size-pt 14) (setq imalison:default-font-size-pt 100)
(defun imalison:font-size-adj (&optional arg) (defun imalison:font-size-adj (&optional arg)
"The default C-x C-0/-/= bindings do an excellent job of font resizing. "The default C-x C-0/-/= bindings do an excellent job of font resizing.
@ -581,16 +581,18 @@ This was taken from [[http://emacs.stackexchange.com/questions/7583/transiently-
decreases 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." resets font size if NUM is 0."
(interactive "p") (interactive "p")
(if (= arg 0) (let ((current-height
(setq font-size-pt imalison:default-font-size-pt) (plist-get (custom-face-attributes-get 'default nil) :height)))
(setq font-size-pt (+ font-size-pt arg))) (set-face-attribute 'default nil :height
;; The internal font size value is 10x the font size in points unit. (+ current-height arg))))
;; So a 10pt font size is equal to 100 in internal font size value.
(set-face-attribute 'default nil :height (* font-size-pt 10)))
(defun imalison:font-size-incr () (interactive) (imalison:font-size-adj +1))
(defun imalison:font-size-decr () (interactive) (imalison:font-size-adj -1))
(defun imalison:font-size-reset () (interactive) (imalison:font-size-adj 0)) (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))
#+END_SRC #+END_SRC
** Message Result Builder ** 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. 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.