diff options
Diffstat (limited to 'lisp/ruler-mode.el')
| -rw-r--r-- | lisp/ruler-mode.el | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/lisp/ruler-mode.el b/lisp/ruler-mode.el index afe1cd4bfda..f0efc20f037 100644 --- a/lisp/ruler-mode.el +++ b/lisp/ruler-mode.el @@ -279,21 +279,24 @@ or remove a tab stop. \\[ruler-mode-toggle-show-tab-stops] or (let ((edges (window-edges))) (- (nth 2 edges) (nth 0 edges)))) -(defsubst ruler-mode-window-col (n) +(defsubst ruler-mode-window-col (event) "Return a column number relative to the selected window. -N is a column number relative to selected frame. +EVENT is the mouse event that gives the current column. If required, account for screen estate taken by `display-line-numbers'." - (if display-line-numbers + (let ((n (car (posn-col-row event)))) + (when display-line-numbers ;; FIXME: ruler-mode relies on N being an integer, so if the ;; 'line-number' face is customized to use a font that is larger ;; or smaller than that of the default face, the alignment might ;; be off by up to half a column, unless the font width is an ;; integral multiple or divisor of the default face's font. (setq n (- n (round (line-number-display-width 'columns))))) - (- n - (or (car (window-margins)) 0) - (fringe-columns 'left) - (scroll-bar-columns 'left))) + (- n + (if (eq (posn-area event) 'header-line) + (+ (or (car (window-margins)) 0) + (fringe-columns 'left) + (scroll-bar-columns 'left)) + 0)))) (defun ruler-mode-mouse-set-left-margin (start-event) "Set left margin end to the graduation where the mouse pointer is on. @@ -370,7 +373,7 @@ dragging. See also the variable `ruler-mode-dragged-symbol'." col newc oldc) (save-selected-window (select-window (posn-window start)) - (setq col (ruler-mode-window-col (car (posn-col-row start))) + (setq col (ruler-mode-window-col start) newc (+ col (ruler-mode-text-scaled-window-hscroll))) (and (>= col 0) (< col (ruler-mode-text-scaled-window-width)) @@ -455,7 +458,7 @@ Called on each mouse motion event START-EVENT." col newc) (save-selected-window (select-window (posn-window start)) - (setq col (ruler-mode-window-col (car (posn-col-row end))) + (setq col (ruler-mode-window-col end) newc (+ col (ruler-mode-text-scaled-window-hscroll))) (when (and (>= col 0) (< col (ruler-mode-text-scaled-window-width))) (set ruler-mode-dragged-symbol newc))))) @@ -471,7 +474,7 @@ START-EVENT is the mouse click event." (when (eq start end) ;; mouse click (save-selected-window (select-window (posn-window start)) - (setq col (ruler-mode-window-col (car (posn-col-row start))) + (setq col (ruler-mode-window-col start) ts (+ col (ruler-mode-text-scaled-window-hscroll))) (and (>= col 0) (< col (ruler-mode-text-scaled-window-width)) (not (member ts tab-stop-list)) @@ -492,7 +495,7 @@ START-EVENT is the mouse click event." (when (eq start end) ;; mouse click (save-selected-window (select-window (posn-window start)) - (setq col (ruler-mode-window-col (car (posn-col-row start))) + (setq col (ruler-mode-window-col start) ts (+ col (ruler-mode-text-scaled-window-hscroll))) (and (>= col 0) (< col (ruler-mode-text-scaled-window-width)) (member ts tab-stop-list) |