(Emacs/elisp)~Use a symbol-shorthand to lower the size of symbols in better mode line

This commit is contained in:
2024-07-02 14:16:24 +01:00
parent 38b69af52b
commit ea232f3110

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@@ -27,22 +27,22 @@
;;; Code:
(defvar better-mode-line/left-segment nil
(defvar bml/left-segment nil
"List of elements that are placed on the left of the mode-line")
(defvar better-mode-line/centre-segment nil
(defvar bml/centre-segment nil
"List of elements that should be on the centre of the mode-line")
(defvar better-mode-line/right-segment nil
(defvar bml/right-segment nil
"List of elements that should be on the right of the mode-line")
(defconst better-mode-line/--minimum-padding 4
(defconst bml/--minimum-padding 4
"Minimum size of padding string.")
(defun better-mode-line/--get-padding-size (other-size)
(defun bml/--get-padding-size (other-size)
"Compute length of padding to ensure string of size OTHER is on an
extreme end to CENTRE-SEGMENT."
(let* ((centre-size (length (format-mode-line better-mode-line/centre-segment)))
(let* ((centre-size (length (format-mode-line bml/centre-segment)))
(win-width (window-width))
(margins (window-margins))
(width (if (null (car margins))
@@ -50,27 +50,32 @@ extreme end to CENTRE-SEGMENT."
(+ (car margins) win-width (cdr margins)))))
(- (floor (/ width 2)) (floor (/ centre-size 2)) other-size)))
(defun better-mode-line/--generate-padding (segment)
(defun bml/--generate-padding (segment)
"Make padding string to separate center segment from SEGMENT."
(let* ((segment-size (length (format-mode-line segment)))
(padding-size (better-mode-line/--get-padding-size segment-size)))
(make-string (if (< padding-size better-mode-line/--minimum-padding)
better-mode-line/--minimum-padding
(padding-size (bml/--get-padding-size segment-size)))
(make-string (if (< padding-size bml/--minimum-padding)
bml/--minimum-padding
padding-size)
?\s)))
(defun better-mode-line/setup-mode-line ()
(defun bml/setup-mode-line ()
"Call this to setup the mode-line when:
- first loading the package.
- segments are updated."
(setq-default mode-line-format
`(,better-mode-line/left-segment
(:eval (better-mode-line/--generate-padding
better-mode-line/left-segment))
,better-mode-line/centre-segment
(:eval (better-mode-line/--generate-padding
better-mode-line/right-segment))
,better-mode-line/right-segment)))
`(,bml/left-segment
(:eval (bml/--generate-padding
bml/left-segment))
,bml/centre-segment
(:eval (bml/--generate-padding
bml/right-segment))
,bml/right-segment)))
(provide 'better-mode-line)
;;; better-mode-line.el ends here
;; Local Variables:
;; read-symbol-shorthands: (("bml" . "better-mode-line"))
;; End: