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(Emacs/elisp)~better-mode-line now ignores margins

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(window-width) cares about margins which isn't nice for padding
computations, so I made a function for computing padding sizes
including margins.
This commit is contained in:
Aryadev Chavali
2024-07-01 04:09:23 +01:00
parent 9bef5d5109
commit 393038643a
1 changed files with 10 additions and 2 deletions
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12
Emacs/.config/emacs/elisp/better-mode-line.el
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@@ -51,12 +51,20 @@ the first character of the evil state capitalised"
(defconst +better-mode-line/--minimum-padding 4
"Minimum size of padding string.")
(defun +better-mode-line/--get-padding-size (centre-size other-size)
(let* ((win-width (window-width))
(margins (window-margins))
(width (if (null (car margins))
win-width
(+ (car margins) win-width (cdr margins)))))
(- (/ width 2) (/ centre-size 2) other-size)))
(defun +better-mode-line/--left->centre-padding ()
"Returns a string which pads the centre segment perfectly relative
to the left segment."
(let* ((left-segment-size (length (format-mode-line +better-mode-line/left-segment)))
(centre-segment-size (length (format-mode-line +better-mode-line/centre-segment)))
(padding-size (- (/ (window-width) 2) (/ centre-segment-size 2) left-segment-size)))
(padding-size (+better-mode-line/--get-padding-size centre-segment-size left-segment-size)))
(make-string (if (< padding-size +better-mode-line/--minimum-padding)
+better-mode-line/--minimum-padding
padding-size)
@@ -67,7 +75,7 @@ to the left segment."
to the centre segment"
(let* ((centre-segment-size (length (format-mode-line +better-mode-line/centre-segment)))
(right-segment-size (length (format-mode-line +better-mode-line/right-segment)))
(padding-size (- (/ (window-width) 2) (/ centre-segment-size 2) right-segment-size)))
(padding-size (+better-mode-line/--get-padding-size centre-segment-size right-segment-size)))
(make-string (if (< padding-size +better-mode-line/--minimum-padding)
+better-mode-line/--minimum-padding
padding-size)