* ruler-mode.el version 1.6
@ 2003-05-27 20:11 David Ponce
2003-05-30 12:32 ` David Ponce
0 siblings, 1 reply; 2+ messages in thread
From: David Ponce @ 2003-05-27 20:11 UTC (permalink / raw)
Hi All,
I submit you an important patch for ruler-mode.el (new version 1.6), to
take into account the recent changes made by Kim F. Storm to the display
margins, fringes and scroll-bar handling.
Here is the change log:
2003-05-27 David Ponce <david@dponce.com>
* ruler-mode.el
Version 1.6
Take into account changes made to the display margins, fringes
and scroll-bar handling.
(ruler-mode-margins-char): Removed. No more used.
(ruler-mode-pad-face, ruler-mode-fringes-face): New faces.
(ruler-mode-margins-face): New definition. Moved.
(ruler-mode-left-fringe-cols)
(ruler-mode-right-fringe-cols)
(ruler-mode-left-scroll-bar-cols)
(ruler-mode-right-scroll-bar-cols): Reimplemented. Moved.
(ruler-mode-full-window-width)
(ruler-mode-window-col): New functions.
(ruler-mode-mouse-set-left-margin)
(ruler-mode-mouse-set-right-margin)
(ruler-mode-mouse-add-tab-stop)
(ruler-mode-mouse-del-tab-stop): Reimplemented.
(ruler-mode-mouse-current-grab-object): Renamed to...
(ruler-mode-dragged-symbol): New.
(ruler-mode-mouse-grab-any-column): Use it. Cleaned up.
(ruler-mode-mouse-drag-any-column): Likewise.
(ruler-mode-mouse-drag-any-column-iteration): Simplified.
(ruler-mode): Restore previous `header-line-format' if
`ruler-mode-header-line-format-old' has a local binding in current
buffer.
(ruler-mode-left-margin-help-echo)
(ruler-mode-right-margin-help-echo): Removed.
(ruler-mode-margin-help-echo)
(ruler-mode-fringe-help-echo): New constants.
(ruler-mode-ruler): Use them. Reimplemented.
Sincerely,
David
Index: ruler-mode.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/ruler-mode.el,v
retrieving revision 1.13
diff -c -r1.13 ruler-mode.el
*** ruler-mode.el 13 Feb 2003 15:55:06 -0000 1.13
--- ruler-mode.el 27 May 2003 19:57:25 -0000
***************
*** 5,11 ****
;; Author: David Ponce <david@dponce.com>
;; Maintainer: David Ponce <david@dponce.com>
;; Created: 24 Mar 2001
! ;; Version: 1.5
;; Keywords: convenience
;; This file is part of GNU Emacs.
--- 5,11 ----
;; Author: David Ponce <david@dponce.com>
;; Maintainer: David Ponce <david@dponce.com>
;; Created: 24 Mar 2001
! ;; Version: 1.6
;; Keywords: convenience
;; This file is part of GNU Emacs.
***************
*** 33,46 ****
;; You can use the mouse to change the `fill-column' `comment-column',
;; `goal-column', `window-margins' and `tab-stop-list' settings:
;;
! ;; [header-line (shift down-mouse-1)] set left margin to the ruler
;; graduation where the mouse pointer is on.
;;
! ;; [header-line (shift down-mouse-3)] set right margin to the ruler
! ;; graduation where the mouse pointer is on.
;;
! ;; [header-line down-mouse-2] set `fill-column', `comment-column' or
! ;; `goal-column' to the ruler graduation with the mouse dragging.
;;
;; [header-line (control down-mouse-1)] add a tab stop to the ruler
;; graduation where the mouse pointer is on.
--- 33,46 ----
;; You can use the mouse to change the `fill-column' `comment-column',
;; `goal-column', `window-margins' and `tab-stop-list' settings:
;;
! ;; [header-line (shift down-mouse-1)] set left margin end to the ruler
;; graduation where the mouse pointer is on.
;;
! ;; [header-line (shift down-mouse-3)] set right margin beginning to
! ;; the ruler graduation where the mouse pointer is on.
;;
! ;; [header-line down-mouse-2] Drag the `fill-column', `comment-column'
! ;; or `goal-column' to a ruler graduation.
;;
;; [header-line (control down-mouse-1)] add a tab stop to the ruler
;; graduation where the mouse pointer is on.
***************
*** 57,70 ****
;; the `current-column' location, `ruler-mode-fill-column-char' shows
;; the `fill-column' location, `ruler-mode-comment-column-char' shows
;; the `comment-column' location, `ruler-mode-goal-column-char' shows
! ;; the `goal-column' and `ruler-mode-tab-stop-char' shows tab
! ;; stop locations. `window-margins' areas are shown with a different
! ;; background color.
;;
;; It is also possible to customize the following characters:
;;
- ;; - `ruler-mode-margins-char' character used to pad margin areas
- ;; (space by default).
;; - `ruler-mode-basic-graduation-char' character used for basic
;; graduations ('.' by default).
;; - `ruler-mode-inter-graduation-char' character used for
--- 57,68 ----
;; the `current-column' location, `ruler-mode-fill-column-char' shows
;; the `fill-column' location, `ruler-mode-comment-column-char' shows
;; the `comment-column' location, `ruler-mode-goal-column-char' shows
! ;; the `goal-column' and `ruler-mode-tab-stop-char' shows tab stop
! ;; locations. Graduations in `window-margins' and `window-fringes'
! ;; areas are shown with a different foreground color.
;;
;; It is also possible to customize the following characters:
;;
;; - `ruler-mode-basic-graduation-char' character used for basic
;; graduations ('.' by default).
;; - `ruler-mode-inter-graduation-char' character used for
***************
*** 83,95 ****
;; `current-column' character.
;; - `ruler-mode-tab-stop-face' the face used to highlight tab stop
;; characters.
! ;; - `ruler-mode-margins-face' the face used to highlight the
! ;; `window-margins' areas.
;; - `ruler-mode-column-number-face' the face used to highlight the
! ;; number graduations.
;;
;; `ruler-mode-default-face' inherits from the built-in `default' face.
! ;; All `ruler-mode' faces inerit from `ruler-mode-default-face'.
;;
;; WARNING: To keep ruler graduations aligned on text columns it is
;; important to use the same font family and size for ruler and text
--- 81,95 ----
;; `current-column' character.
;; - `ruler-mode-tab-stop-face' the face used to highlight tab stop
;; characters.
! ;; - `ruler-mode-margins-face' the face used to highlight graduations
! ;; in the `window-margins' areas.
! ;; - `ruler-mode-fringes-face' the face used to highlight graduations
! ;; in the `window-fringes' areas.
;; - `ruler-mode-column-number-face' the face used to highlight the
! ;; numbered graduations.
;;
;; `ruler-mode-default-face' inherits from the built-in `default' face.
! ;; All `ruler-mode' faces inherit from `ruler-mode-default-face'.
;;
;; WARNING: To keep ruler graduations aligned on text columns it is
;; important to use the same font family and size for ruler and text
***************
*** 179,192 ****
(integer :tag "Integer char value"
:validate ruler-mode-character-validate)))
- (defcustom ruler-mode-margins-char ?\s
- "*Character used in margin areas."
- :group 'ruler-mode
- :type '(choice
- (character :tag "Character")
- (integer :tag "Integer char value"
- :validate ruler-mode-character-validate)))
-
(defcustom ruler-mode-basic-graduation-char ?\.
"*Character used for basic graduations."
:group 'ruler-mode
--- 179,184 ----
***************
*** 225,230 ****
--- 217,250 ----
"Default face used by the ruler."
:group 'ruler-mode)
+ (defface ruler-mode-pad-face
+ '((((type tty))
+ (:inherit ruler-mode-default-face
+ :background "grey50"
+ ))
+ (t
+ (:inherit ruler-mode-default-face
+ :background "grey64"
+ )))
+ "Face used to pad inactive ruler areas."
+ :group 'ruler-mode)
+
+ (defface ruler-mode-margins-face
+ '((t
+ (:inherit ruler-mode-default-face
+ :foreground "white"
+ )))
+ "Face used to highlight margin areas."
+ :group 'ruler-mode)
+
+ (defface ruler-mode-fringes-face
+ '((t
+ (:inherit ruler-mode-default-face
+ :foreground "green"
+ )))
+ "Face used to highlight fringes areas."
+ :group 'ruler-mode)
+
(defface ruler-mode-column-number-face
'((t
(:inherit ruler-mode-default-face
***************
*** 265,282 ****
"Face used to highlight tab stop characters."
:group 'ruler-mode)
- (defface ruler-mode-margins-face
- '((((type tty))
- (:inherit ruler-mode-default-face
- :background "grey50"
- ))
- (t
- (:inherit ruler-mode-default-face
- :background "grey64"
- )))
- "Face used to highlight the `window-margins' areas."
- :group 'ruler-mode)
-
(defface ruler-mode-current-column-face
'((t
(:inherit ruler-mode-default-face
--- 285,290 ----
***************
*** 286,492 ****
"Face used to highlight the `current-column' character."
:group 'ruler-mode)
\f
(defun ruler-mode-mouse-set-left-margin (start-event)
! "Set left margin to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! w col m lm0 lm rm)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! lm0 (or (car m) 0)
! rm (or (cdr m) 0)
! w (window-width)
! col (car (posn-col-row start))
! lm (min (- w rm) col))
! (message "Left margin set to %d (was %d)" lm lm0)
! (set-window-margins nil lm rm)))))
(defun ruler-mode-mouse-set-right-margin (start-event)
! "Set right margin to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! m col w lm rm0 rm)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! rm0 (or (cdr m) 0)
! lm (or (car m) 0)
! col (car (posn-col-row start))
! w (window-width)
! rm (max 0 (- w col)))
! (message "Right margin set to %d (was %d)" rm rm0)
! (set-window-margins nil lm rm)))))
! (defvar ruler-mode-mouse-current-grab-object nil
"Column symbol dragged in the ruler.
That is `fill-column', `comment-column', `goal-column', or nil when
nothing is dragged.")
(defun ruler-mode-mouse-grab-any-column (start-event)
! "Set a column symbol to the graduation with mouse dragging.
! See also variable `ruler-mode-mouse-current-grab-object'.
! START-EVENT is the mouse down event."
(interactive "e")
! (setq ruler-mode-mouse-current-grab-object nil)
(let* ((start (event-start start-event))
! m col w lm rm hs newc oldc)
(save-selected-window
(select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row start)) lm)
! w (window-width)
! hs (window-hscroll)
! newc (+ col hs))
! ;;
! ;; About the ways to handle the goal column:
! ;; A. update the value of the goal column if goal-column has
! ;; non-nil value and if the mouse is dragged
! ;; B. set value to the goal column if goal-column has nil and if
! ;; the mouse is just clicked, not dragged.
! ;; C. unset value to the goal column if goal-column has non-nil
! ;; and mouse is just clicked on goal-column character on the
! ;; ruler, not dragged.
! ;;
! (and (>= col 0) (< (+ col lm rm) w)
! (cond
! ((eq newc fill-column)
! (setq oldc fill-column)
! (setq ruler-mode-mouse-current-grab-object 'fill-column)
! t)
! ((eq newc comment-column)
! (setq oldc comment-column)
! (setq ruler-mode-mouse-current-grab-object 'comment-column)
! t)
! ((eq newc goal-column) ; A. update goal column
! (setq oldc goal-column)
! (setq ruler-mode-mouse-current-grab-object 'goal-column)
! t)
! ((null goal-column) ; B. set goal column
! (setq oldc goal-column)
! (setq goal-column newc)
! ;; mouse-2 coming AFTER drag-mouse-2 invokes `ding'.
! ;; This `ding' flushes the next messages about setting
! ;; goal column. So here I force fetch the event(mouse-2)
! ;; and throw away.
! (read-event)
! ;; Ding BEFORE `message' is OK.
! (if ruler-mode-set-goal-column-ding-flag
! (ding))
! (message
! "Goal column %d (click `%s' on the ruler again to unset it)"
! newc
! (propertize (char-to-string ruler-mode-goal-column-char)
! 'face 'ruler-mode-goal-column-face))
! ;; don't enter drag iteration
! nil))
! (if (eq 'click (ruler-mode-mouse-drag-any-column-iteration
! (posn-window start)))
! (if (eq 'goal-column ruler-mode-mouse-current-grab-object)
! ;; C. unset goal column
! (set-goal-column t))
! ;; *-column is updated; report it
! (message "%s is set to %d (was %d)"
! ruler-mode-mouse-current-grab-object
! (eval ruler-mode-mouse-current-grab-object)
! oldc))))))
(defun ruler-mode-mouse-drag-any-column-iteration (window)
"Update the ruler while dragging the mouse.
! WINDOW is the window where the last down-mouse event is occurred.
! Return a symbol `drag' if the mouse is actually dragged.
! Return a symbol `click' if the mouse is just clicked."
! (let (newevent
! (drag-count 0))
(track-mouse
! (while (progn
! (setq newevent (read-event))
! (mouse-movement-p newevent))
! (setq drag-count (1+ drag-count))
! (if (eq window (posn-window (event-end newevent)))
! (progn
! (ruler-mode-mouse-drag-any-column newevent)
! (force-mode-line-update)))))
! (if (and (eq drag-count 0)
! (eq 'click (car (event-modifiers newevent))))
'click
'drag)))
(defun ruler-mode-mouse-drag-any-column (start-event)
! "Update the ruler for START-EVENT, one mouse motion event."
(let* ((start (event-start start-event))
(end (event-end start-event))
! m col w lm rm hs newc)
(save-selected-window
(select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row end)) lm)
! w (window-width)
! hs (window-hscroll)
! newc (+ col hs))
! (if (and (>= col 0) (< (+ col lm rm) w))
! (set ruler-mode-mouse-current-grab-object newc)))))
\f
(defun ruler-mode-mouse-add-tab-stop (start-event)
"Add a tab stop to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (if ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! m col w lm rm hs ts)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row start)) lm)
! w (window-width)
! hs (window-hscroll)
! ts (+ col hs))
! (and (>= col 0) (< (+ col lm rm) w)
! (not (member ts tab-stop-list))
! (progn
! (message "Tab stop set to %d" ts)
! (setq tab-stop-list
! (sort (cons ts tab-stop-list)
! #'<)))))))))
(defun ruler-mode-mouse-del-tab-stop (start-event)
"Delete tab stop at the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (if ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! m col w lm rm hs ts)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row start)) lm)
! w (window-width)
! hs (window-hscroll)
! ts (+ col hs))
! (and (>= col 0) (< (+ col lm rm) w)
! (member ts tab-stop-list)
! (progn
! (message "Tab stop at %d deleted" ts)
! (setq tab-stop-list
! (delete ts tab-stop-list)))))))))
(defun ruler-mode-toggle-show-tab-stops ()
"Toggle showing of tab stops on the ruler."
--- 294,544 ----
"Face used to highlight the `current-column' character."
:group 'ruler-mode)
\f
+ (defmacro ruler-mode-left-fringe-cols ()
+ "Return the width, measured in columns, of the left fringe area."
+ '(ceiling (or (car (window-fringes)) 0)
+ (frame-char-width)))
+
+ (defmacro ruler-mode-right-fringe-cols ()
+ "Return the width, measured in columns, of the right fringe area."
+ '(ceiling (or (nth 1 (window-fringes)) 0)
+ (frame-char-width)))
+
+ (defun ruler-mode-left-scroll-bar-cols ()
+ "Return the width, measured in columns, of the right vertical scrollbar."
+ (let* ((wsb (window-scroll-bars))
+ (vtype (nth 2 wsb))
+ (cols (nth 1 wsb)))
+ (if (or (eq vtype 'left)
+ (and (eq vtype t)
+ (eq (frame-parameter nil 'vertical-scroll-bars) 'left)))
+ (or cols
+ (ceiling
+ ;; nil means it's a non-toolkit scroll bar,
+ ;; and its width in columns is 14 pixels rounded up.
+ (or (frame-parameter nil 'scroll-bar-width) 14)
+ ;; Always round up to multiple of columns.
+ (frame-char-width)))
+ 0)))
+
+ (defun ruler-mode-right-scroll-bar-cols ()
+ "Return the width, measured in columns, of the right vertical scrollbar."
+ (let* ((wsb (window-scroll-bars))
+ (vtype (nth 2 wsb))
+ (cols (nth 1 wsb)))
+ (if (or (eq vtype 'right)
+ (and (eq vtype t)
+ (eq (frame-parameter nil 'vertical-scroll-bars) 'right)))
+ (or cols
+ (ceiling
+ ;; nil means it's a non-toolkit scroll bar,
+ ;; and its width in columns is 14 pixels rounded up.
+ (or (frame-parameter nil 'scroll-bar-width) 14)
+ ;; Always round up to multiple of columns.
+ (frame-char-width)))
+ 0)))
+
+ (defsubst ruler-mode-full-window-width ()
+ "Return the full width of the selected window."
+ (let ((edges (window-edges)))
+ (- (nth 2 edges) (nth 0 edges))))
+
+ (defsubst ruler-mode-window-col (n)
+ "Return a column number relative to the selected window.
+ N is a column number relative to selected frame."
+ (- n
+ (car (window-edges))
+ (or (car (window-margins)) 0)
+ (ruler-mode-left-fringe-cols)
+ (ruler-mode-left-scroll-bar-cols)))
+ \f
(defun ruler-mode-mouse-set-left-margin (start-event)
! "Set left margin end to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! col w lm rm)
! (when (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq col (- (car (posn-col-row start)) (car (window-edges))
! (ruler-mode-left-scroll-bar-cols))
! w (- (ruler-mode-full-window-width)
! (ruler-mode-left-scroll-bar-cols)
! (ruler-mode-right-scroll-bar-cols)))
! (when (and (>= col 0) (< col w))
! (setq lm (window-margins)
! rm (or (cdr lm) 0)
! lm (or (car lm) 0))
! (message "Left margin set to %d (was %d)" col lm)
! (set-window-margins nil col rm))))))
(defun ruler-mode-mouse-set-right-margin (start-event)
! "Set right margin beginning to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! col w lm rm)
! (when (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq col (- (car (posn-col-row start)) (car (window-edges))
! (ruler-mode-left-scroll-bar-cols))
! w (- (ruler-mode-full-window-width)
! (ruler-mode-left-scroll-bar-cols)
! (ruler-mode-right-scroll-bar-cols)))
! (when (and (>= col 0) (< col w))
! (setq lm (window-margins)
! rm (or (cdr lm) 0)
! lm (or (car lm) 0)
! col (- w col 1))
! (message "Right margin set to %d (was %d)" col rm)
! (set-window-margins nil lm col))))))
! (defvar ruler-mode-dragged-symbol nil
"Column symbol dragged in the ruler.
That is `fill-column', `comment-column', `goal-column', or nil when
nothing is dragged.")
(defun ruler-mode-mouse-grab-any-column (start-event)
! "Drag a column symbol on the ruler.
! Start dragging on mouse down event START-EVENT, and update the column
! symbol value with the current value of the ruler graduation while
! dragging. See also the variable `ruler-mode-dragged-symbol'."
(interactive "e")
! (setq ruler-mode-dragged-symbol nil)
(let* ((start (event-start start-event))
! col newc oldc)
(save-selected-window
(select-window (posn-window start))
! (setq col (ruler-mode-window-col (car (posn-col-row start)))
! newc (+ col (window-hscroll)))
! (and
! (>= col 0) (< col (window-width))
! (cond
!
! ;; Handle the fill column.
! ((eq newc fill-column)
! (setq oldc fill-column
! ruler-mode-dragged-symbol 'fill-column)
! t) ;; Start dragging
!
! ;; Handle the comment column.
! ((eq newc comment-column)
! (setq oldc comment-column
! ruler-mode-dragged-symbol 'comment-column)
! t) ;; Start dragging
!
! ;; Handle the goal column.
! ;; A. On mouse down on the goal column character on the ruler,
! ;; update the `goal-column' value while dragging.
! ;; B. If `goal-column' is nil, set the goal column where the
! ;; mouse is clicked.
! ;; C. On mouse click on the goal column character on the
! ;; ruler, unset the goal column.
! ((eq newc goal-column) ; A. Drag the goal column.
! (setq oldc goal-column
! ruler-mode-dragged-symbol 'goal-column)
! t) ;; Start dragging
!
! ((null goal-column) ; B. Set the goal column.
! (setq oldc goal-column
! goal-column newc)
! ;; mouse-2 coming AFTER drag-mouse-2 invokes `ding'. This
! ;; `ding' flushes the next messages about setting goal
! ;; column. So here I force fetch the event(mouse-2) and
! ;; throw away.
! (read-event)
! ;; Ding BEFORE `message' is OK.
! (when ruler-mode-set-goal-column-ding-flag
! (ding))
! (message "Goal column set to %d (click on %s again to unset it)"
! newc
! (propertize (char-to-string ruler-mode-goal-column-char)
! 'face 'ruler-mode-goal-column-face))
! nil) ;; Don't start dragging.
! )
! (if (eq 'click (ruler-mode-mouse-drag-any-column-iteration
! (posn-window start)))
! (when (eq 'goal-column ruler-mode-dragged-symbol)
! ;; C. Unset the goal column.
! (set-goal-column t))
! ;; At end of dragging, report the updated column symbol.
! (message "%s is set to %d (was %d)"
! ruler-mode-dragged-symbol
! (symbol-value ruler-mode-dragged-symbol)
! oldc))))))
(defun ruler-mode-mouse-drag-any-column-iteration (window)
"Update the ruler while dragging the mouse.
! WINDOW is the window where occurred the last down-mouse event.
! Return the symbol `drag' if the mouse has been dragged, or `click' if
! the mouse has been clicked."
! (let ((drags 0)
! event)
(track-mouse
! (while (mouse-movement-p (setq event (read-event)))
! (setq drags (1+ drags))
! (when (eq window (posn-window (event-end event)))
! (ruler-mode-mouse-drag-any-column event)
! (force-mode-line-update))))
! (if (and (zerop drags) (eq 'click (car (event-modifiers event))))
'click
'drag)))
(defun ruler-mode-mouse-drag-any-column (start-event)
! "Update the value of the symbol dragged on the ruler.
! Called on each mouse motion event START-EVENT."
(let* ((start (event-start start-event))
(end (event-end start-event))
! col newc)
(save-selected-window
(select-window (posn-window start))
! (setq col (ruler-mode-window-col (car (posn-col-row end)))
! newc (+ col (window-hscroll)))
! (when (and (>= col 0) (< col (window-width)))
! (set ruler-mode-dragged-symbol newc)))))
\f
(defun ruler-mode-mouse-add-tab-stop (start-event)
"Add a tab stop to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (when ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! col ts)
! (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)))
! ts (+ col (window-hscroll)))
! (and (>= col 0) (< col (window-width))
! (not (member ts tab-stop-list))
! (progn
! (message "Tab stop set to %d" ts)
! (setq tab-stop-list (sort (cons ts tab-stop-list)
! #'<)))))))))
(defun ruler-mode-mouse-del-tab-stop (start-event)
"Delete tab stop at the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (when ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! col ts)
! (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)))
! ts (+ col (window-hscroll)))
! (and (>= col 0) (< col (window-width))
! (member ts tab-stop-list)
! (progn
! (message "Tab stop at %d deleted" ts)
! (setq tab-stop-list (delete ts tab-stop-list)))))))))
(defun ruler-mode-toggle-show-tab-stops ()
"Toggle showing of tab stops on the ruler."
***************
*** 542,548 ****
;; the current one is the ruler header line format.
(when (eq header-line-format ruler-mode-header-line-format)
(kill-local-variable 'header-line-format)
! (when ruler-mode-header-line-format-old
(setq header-line-format ruler-mode-header-line-format-old)))
(remove-hook 'post-command-hook ; remove local hook
#'force-mode-line-update t)))
--- 594,600 ----
;; the current one is the ruler header line format.
(when (eq header-line-format ruler-mode-header-line-format)
(kill-local-variable 'header-line-format)
! (when (local-variable-p 'ruler-mode-header-line-format-old)
(setq header-line-format ruler-mode-header-line-format-old)))
(remove-hook 'post-command-hook ; remove local hook
#'force-mode-line-update t)))
***************
*** 588,782 ****
mouse-2: unset goal column"
"Help string shown when mouse is on the goal column character.")
! (defconst ruler-mode-left-margin-help-echo
! "Left margin %S"
! "Help string shown when mouse is over the left margin area.")
!
! (defconst ruler-mode-right-margin-help-echo
! "Right margin %S"
! "Help string shown when mouse is over the right margin area.")
!
! (defmacro ruler-mode-left-fringe-cols ()
! "Return the width, measured in columns, of the left fringe area."
! '(round (or (frame-parameter nil 'left-fringe) 0)
! (frame-char-width)))
!
! (defmacro ruler-mode-right-fringe-cols ()
! "Return the width, measured in columns, of the right fringe area."
! '(round (or (frame-parameter nil 'right-fringe) 0)
! (frame-char-width)))
!
! (defmacro ruler-mode-left-scroll-bar-cols ()
! "Return the width, measured in columns, of the left vertical scrollbar."
! '(if (eq (frame-parameter nil 'vertical-scroll-bars) 'left)
! (let ((sbw (frame-parameter nil 'scroll-bar-width)))
! ;; nil means it's a non-toolkit scroll bar,
! ;; and its width in columns is 14 pixels rounded up.
! (unless sbw (setq sbw 14))
! ;; Always round up to multiple of columns.
! (ceiling sbw (frame-char-width)))
! 0))
!
! (defmacro ruler-mode-right-scroll-bar-cols ()
! "Return the width, measured in columns, of the right vertical scrollbar."
! '(if (eq (frame-parameter nil 'vertical-scroll-bars) 'right)
! (round (or (frame-parameter nil 'scroll-bar-width) 0)
! (frame-char-width))
! 0))
\f
(defun ruler-mode-ruler ()
"Return a string ruler."
! (if ruler-mode
! (let* ((j (+ (ruler-mode-left-fringe-cols)
! (ruler-mode-left-scroll-bar-cols)))
! (w (+ (window-width) j))
! (m (window-margins))
! (l (or (car m) 0))
! (r (or (cdr m) 0))
! (o (- (window-hscroll) l j))
! (i 0)
! (ruler (concat
! ;; unit graduations
! (make-string w ruler-mode-basic-graduation-char)
! ;; extra space to fill the header line
! (make-string (+ (ruler-mode-right-fringe-cols)
! (ruler-mode-right-scroll-bar-cols))
! ?\ )))
! c k)
!
! ;; Setup default face and help echo.
! (put-text-property 0 (length ruler)
! 'face 'ruler-mode-default-face
! ruler)
! (put-text-property 0 (length ruler)
! 'help-echo
! (if ruler-mode-show-tab-stops
! ruler-mode-ruler-help-echo-when-tab-stops
! (if goal-column
! ruler-mode-ruler-help-echo-when-goal-column
! ruler-mode-ruler-help-echo))
! ruler)
! ;; Setup the local map.
! (put-text-property 0 (length ruler)
! 'local-map ruler-mode-map
! ruler)
!
! (setq j (+ l j))
! ;; Setup the left margin area.
! (put-text-property
! i j 'face 'ruler-mode-margins-face
! ruler)
! (put-text-property
! i j 'help-echo (format ruler-mode-left-margin-help-echo l)
! ruler)
! (while (< i j)
! (aset ruler i ruler-mode-margins-char)
! (setq i (1+ i)))
!
! ;; Setup the ruler area.
! (setq r (- w r))
! (while (< i r)
! (setq j (+ i o))
! (cond
! ((= (mod j 10) 0)
! (setq c (number-to-string (/ j 10))
! m (length c)
! k i)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-column-number-face
! ruler)
! (while (and (> m 0) (>= k 0))
! (aset ruler k (aref c (setq m (1- m))))
! (setq k (1- k)))
! )
! ((= (mod j 5) 0)
! (aset ruler i ruler-mode-inter-graduation-char)
! )
! )
! (setq i (1+ i)))
!
! ;; Setup the right margin area.
! (put-text-property
! i (length ruler) 'face 'ruler-mode-margins-face
! ruler)
! (put-text-property
! i (length ruler) 'help-echo
! (format ruler-mode-right-margin-help-echo (- w r))
! ruler)
! (while (< i (length ruler))
! (aset ruler i ruler-mode-margins-char)
! (setq i (1+ i)))
!
! ;; Show the `goal-column' marker.
! (if goal-column
! (progn
! (setq i (- goal-column o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-goal-column-char)
! (progn
! (put-text-property
! i (1+ i) 'face 'ruler-mode-goal-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-goal-column-help-echo
! ruler))
! )))
!
! ;; Show the `comment-column' marker.
! (setq i (- comment-column o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-comment-column-char)
! (progn
! (put-text-property
! i (1+ i) 'face 'ruler-mode-comment-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-comment-column-help-echo
! ruler)))
!
! ;; Show the `fill-column' marker.
! (setq i (- fill-column o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-fill-column-char)
! (progn (put-text-property
! i (1+ i) 'face 'ruler-mode-fill-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-fill-column-help-echo
! ruler)))
!
! ;; Show the `tab-stop-list' markers.
! (if ruler-mode-show-tab-stops
! (let ((tsl tab-stop-list) ts)
! (while tsl
! (setq ts (car tsl)
! tsl (cdr tsl)
! i (- ts o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-tab-stop-char)
! (put-text-property
! i (1+ i)
! 'face (cond
! ;; Don't override the *-column face
! ((eq ts fill-column)
! 'ruler-mode-fill-column-face)
! ((eq ts comment-column)
! 'ruler-mode-comment-column-face)
! ((eq ts goal-column)
! 'ruler-mode-goal-column-face)
! (t
! 'ruler-mode-tab-stop-face))
! ruler)))))
!
! ;; Show the `current-column' marker.
! (setq i (- (current-column) o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-current-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-current-column-face
! ruler))
!
! ruler)))
(provide 'ruler-mode)
--- 640,789 ----
mouse-2: unset goal column"
"Help string shown when mouse is on the goal column character.")
! (defconst ruler-mode-margin-help-echo
! "%s margin %S"
! "Help string shown when mouse is over a margin area.")
!
! (defconst ruler-mode-fringe-help-echo
! "%s fringe %S"
! "Help string shown when mouse is over a fringe area.")
\f
(defun ruler-mode-ruler ()
"Return a string ruler."
! (when ruler-mode
! (let* ((fullw (ruler-mode-full-window-width))
! (w (window-width))
! (m (window-margins))
! (lsb (ruler-mode-left-scroll-bar-cols))
! (lf (ruler-mode-left-fringe-cols))
! (lm (or (car m) 0))
! (rsb (ruler-mode-right-scroll-bar-cols))
! (rf (ruler-mode-right-fringe-cols))
! (rm (or (cdr m) 0))
! (ruler (make-string fullw ruler-mode-basic-graduation-char))
! (o (+ lsb lf lm))
! (x 0)
! (i o)
! (j (window-hscroll))
! k c l1 l2 r2 r1 h1 h2 f1 f2)
!
! ;; Setup the default properties.
! (put-text-property 0 fullw 'face 'ruler-mode-default-face ruler)
! (put-text-property 0 fullw
! 'help-echo
! (cond
! (ruler-mode-show-tab-stops
! ruler-mode-ruler-help-echo-when-tab-stops)
! (goal-column
! ruler-mode-ruler-help-echo-when-goal-column)
! (t
! ruler-mode-ruler-help-echo))
! ruler)
! ;; Setup the local map.
! (put-text-property 0 fullw 'local-map ruler-mode-map ruler)
!
! ;; Setup the active area.
! (while (< x w)
! ;; Graduations.
! (cond
! ;; Show a number graduation.
! ((= (mod j 10) 0)
! (setq c (number-to-string (/ j 10))
! m (length c)
! k i)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-column-number-face
! ruler)
! (while (and (> m 0) (>= k 0))
! (aset ruler k (aref c (setq m (1- m))))
! (setq k (1- k))))
! ;; Show an intermediate graduation.
! ((= (mod j 5) 0)
! (aset ruler i ruler-mode-inter-graduation-char)))
! ;; Special columns.
! (cond
! ;; Show the `current-column' marker.
! ((= j (current-column))
! (aset ruler i ruler-mode-current-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-current-column-face
! ruler))
! ;; Show the `goal-column' marker.
! ((and goal-column (= j goal-column))
! (aset ruler i ruler-mode-goal-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-goal-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-goal-column-help-echo
! ruler))
! ;; Show the `comment-column' marker.
! ((= j comment-column)
! (aset ruler i ruler-mode-comment-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-comment-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-comment-column-help-echo
! ruler))
! ;; Show the `fill-column' marker.
! ((= j fill-column)
! (aset ruler i ruler-mode-fill-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-fill-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-fill-column-help-echo
! ruler))
! ;; Show the `tab-stop-list' markers.
! ((and ruler-mode-show-tab-stops (member j tab-stop-list))
! (aset ruler i ruler-mode-tab-stop-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-tab-stop-face
! ruler)))
! (setq i (1+ i)
! j (1+ j)
! x (1+ x)))
!
! ;; Highlight the fringes and margins.
! (if (nth 2 (window-fringes))
! ;; fringes outside margins.
! (setq l1 lf
! l2 lm
! r2 rm
! r1 rf
! h1 ruler-mode-fringe-help-echo
! h2 ruler-mode-margin-help-echo
! f1 'ruler-mode-fringes-face
! f2 'ruler-mode-margins-face)
! ;; fringes inside margins.
! (setq l1 lm
! l2 lf
! r2 rf
! r1 rm
! h1 ruler-mode-margin-help-echo
! h2 ruler-mode-fringe-help-echo
! f1 'ruler-mode-margins-face
! f2 'ruler-mode-fringes-face))
! (setq i lsb j (+ i l1))
! (put-text-property i j 'face f1 ruler)
! (put-text-property i j 'help-echo (format h1 "Left" l1) ruler)
! (setq i j j (+ i l2))
! (put-text-property i j 'face f2 ruler)
! (put-text-property i j 'help-echo (format h2 "Left" l2) ruler)
! (setq i (+ o w) j (+ i r2))
! (put-text-property i j 'face f2 ruler)
! (put-text-property i j 'help-echo (format h2 "Right" r2) ruler)
! (setq i j j (+ i r1))
! (put-text-property i j 'face f1 ruler)
! (put-text-property i j 'help-echo (format h1 "Right" r1) ruler)
!
! ;; Show inactive areas.
! (put-text-property 0 lsb 'face 'ruler-mode-pad-face ruler)
! (put-text-property j fullw 'face 'ruler-mode-pad-face ruler)
!
! ;; Return the ruler propertized string.
! ruler)))
(provide 'ruler-mode)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: ruler-mode.el version 1.6
2003-05-27 20:11 ruler-mode.el version 1.6 David Ponce
@ 2003-05-30 12:32 ` David Ponce
0 siblings, 0 replies; 2+ messages in thread
From: David Ponce @ 2003-05-30 12:32 UTC (permalink / raw)
Hi,
> I submit you an important patch for ruler-mode.el (new version 1.6), to
> take into account the recent changes made by Kim F. Storm to the display
> margins, fringes and scroll-bar handling.
I didn't received any reply to my message above.
Could someone check the new version of ruler-mode in, please. The current
version is broken since the changes made by Kim.
Thanks!
David
Here is again the change log and patch:
2003-05-27 David Ponce <david@dponce.com>
* ruler-mode.el
Version 1.6
Take into account changes made to the display margins, fringes and
scroll-bar handling.
(ruler-mode-margins-char): Removed. No more used.
(ruler-mode-pad-face, ruler-mode-fringes-face): New faces.
(ruler-mode-margins-face): New definition. Moved.
(ruler-mode-left-fringe-cols)
(ruler-mode-right-fringe-cols)
(ruler-mode-left-scroll-bar-cols)
(ruler-mode-right-scroll-bar-cols): Reimplemented. Moved.
(ruler-mode-full-window-width)
(ruler-mode-window-col): New functions.
(ruler-mode-mouse-set-left-margin)
(ruler-mode-mouse-set-right-margin)
(ruler-mode-mouse-add-tab-stop)
(ruler-mode-mouse-del-tab-stop): Reimplemented.
(ruler-mode-mouse-current-grab-object): Renamed to...
(ruler-mode-dragged-symbol): New.
(ruler-mode-mouse-grab-any-column): Use it. Cleaned up.
(ruler-mode-mouse-drag-any-column): Likewise.
(ruler-mode-mouse-drag-any-column-iteration): Simplified.
(ruler-mode): Restore previous `header-line-format' if
`ruler-mode-header-line-format-old' has a local binding in current
buffer.
(ruler-mode-left-margin-help-echo)
(ruler-mode-right-margin-help-echo): Removed.
(ruler-mode-margin-help-echo)
(ruler-mode-fringe-help-echo): New constants.
(ruler-mode-ruler): Use them. Reimplemented.
Index: ruler-mode.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/ruler-mode.el,v
retrieving revision 1.13
diff -c -r1.13 ruler-mode.el
*** ruler-mode.el 13 Feb 2003 15:55:06 -0000 1.13
--- ruler-mode.el 27 May 2003 19:57:25 -0000
***************
*** 5,11 ****
;; Author: David Ponce <david@dponce.com>
;; Maintainer: David Ponce <david@dponce.com>
;; Created: 24 Mar 2001
! ;; Version: 1.5
;; Keywords: convenience
;; This file is part of GNU Emacs.
--- 5,11 ----
;; Author: David Ponce <david@dponce.com>
;; Maintainer: David Ponce <david@dponce.com>
;; Created: 24 Mar 2001
! ;; Version: 1.6
;; Keywords: convenience
;; This file is part of GNU Emacs.
***************
*** 33,46 ****
;; You can use the mouse to change the `fill-column' `comment-column',
;; `goal-column', `window-margins' and `tab-stop-list' settings:
;;
! ;; [header-line (shift down-mouse-1)] set left margin to the ruler
;; graduation where the mouse pointer is on.
;;
! ;; [header-line (shift down-mouse-3)] set right margin to the ruler
! ;; graduation where the mouse pointer is on.
;;
! ;; [header-line down-mouse-2] set `fill-column', `comment-column' or
! ;; `goal-column' to the ruler graduation with the mouse dragging.
;;
;; [header-line (control down-mouse-1)] add a tab stop to the ruler
;; graduation where the mouse pointer is on.
--- 33,46 ----
;; You can use the mouse to change the `fill-column' `comment-column',
;; `goal-column', `window-margins' and `tab-stop-list' settings:
;;
! ;; [header-line (shift down-mouse-1)] set left margin end to the ruler
;; graduation where the mouse pointer is on.
;;
! ;; [header-line (shift down-mouse-3)] set right margin beginning to
! ;; the ruler graduation where the mouse pointer is on.
;;
! ;; [header-line down-mouse-2] Drag the `fill-column', `comment-column'
! ;; or `goal-column' to a ruler graduation.
;;
;; [header-line (control down-mouse-1)] add a tab stop to the ruler
;; graduation where the mouse pointer is on.
***************
*** 57,70 ****
;; the `current-column' location, `ruler-mode-fill-column-char' shows
;; the `fill-column' location, `ruler-mode-comment-column-char' shows
;; the `comment-column' location, `ruler-mode-goal-column-char' shows
! ;; the `goal-column' and `ruler-mode-tab-stop-char' shows tab
! ;; stop locations. `window-margins' areas are shown with a different
! ;; background color.
;;
;; It is also possible to customize the following characters:
;;
- ;; - `ruler-mode-margins-char' character used to pad margin areas
- ;; (space by default).
;; - `ruler-mode-basic-graduation-char' character used for basic
;; graduations ('.' by default).
;; - `ruler-mode-inter-graduation-char' character used for
--- 57,68 ----
;; the `current-column' location, `ruler-mode-fill-column-char' shows
;; the `fill-column' location, `ruler-mode-comment-column-char' shows
;; the `comment-column' location, `ruler-mode-goal-column-char' shows
! ;; the `goal-column' and `ruler-mode-tab-stop-char' shows tab stop
! ;; locations. Graduations in `window-margins' and `window-fringes'
! ;; areas are shown with a different foreground color.
;;
;; It is also possible to customize the following characters:
;;
;; - `ruler-mode-basic-graduation-char' character used for basic
;; graduations ('.' by default).
;; - `ruler-mode-inter-graduation-char' character used for
***************
*** 83,95 ****
;; `current-column' character.
;; - `ruler-mode-tab-stop-face' the face used to highlight tab stop
;; characters.
! ;; - `ruler-mode-margins-face' the face used to highlight the
! ;; `window-margins' areas.
;; - `ruler-mode-column-number-face' the face used to highlight the
! ;; number graduations.
;;
;; `ruler-mode-default-face' inherits from the built-in `default' face.
! ;; All `ruler-mode' faces inerit from `ruler-mode-default-face'.
;;
;; WARNING: To keep ruler graduations aligned on text columns it is
;; important to use the same font family and size for ruler and text
--- 81,95 ----
;; `current-column' character.
;; - `ruler-mode-tab-stop-face' the face used to highlight tab stop
;; characters.
! ;; - `ruler-mode-margins-face' the face used to highlight graduations
! ;; in the `window-margins' areas.
! ;; - `ruler-mode-fringes-face' the face used to highlight graduations
! ;; in the `window-fringes' areas.
;; - `ruler-mode-column-number-face' the face used to highlight the
! ;; numbered graduations.
;;
;; `ruler-mode-default-face' inherits from the built-in `default' face.
! ;; All `ruler-mode' faces inherit from `ruler-mode-default-face'.
;;
;; WARNING: To keep ruler graduations aligned on text columns it is
;; important to use the same font family and size for ruler and text
***************
*** 179,192 ****
(integer :tag "Integer char value"
:validate ruler-mode-character-validate)))
- (defcustom ruler-mode-margins-char ?\s
- "*Character used in margin areas."
- :group 'ruler-mode
- :type '(choice
- (character :tag "Character")
- (integer :tag "Integer char value"
- :validate ruler-mode-character-validate)))
-
(defcustom ruler-mode-basic-graduation-char ?\.
"*Character used for basic graduations."
:group 'ruler-mode
--- 179,184 ----
***************
*** 225,230 ****
--- 217,250 ----
"Default face used by the ruler."
:group 'ruler-mode)
+ (defface ruler-mode-pad-face
+ '((((type tty))
+ (:inherit ruler-mode-default-face
+ :background "grey50"
+ ))
+ (t
+ (:inherit ruler-mode-default-face
+ :background "grey64"
+ )))
+ "Face used to pad inactive ruler areas."
+ :group 'ruler-mode)
+
+ (defface ruler-mode-margins-face
+ '((t
+ (:inherit ruler-mode-default-face
+ :foreground "white"
+ )))
+ "Face used to highlight margin areas."
+ :group 'ruler-mode)
+
+ (defface ruler-mode-fringes-face
+ '((t
+ (:inherit ruler-mode-default-face
+ :foreground "green"
+ )))
+ "Face used to highlight fringes areas."
+ :group 'ruler-mode)
+
(defface ruler-mode-column-number-face
'((t
(:inherit ruler-mode-default-face
***************
*** 265,282 ****
"Face used to highlight tab stop characters."
:group 'ruler-mode)
- (defface ruler-mode-margins-face
- '((((type tty))
- (:inherit ruler-mode-default-face
- :background "grey50"
- ))
- (t
- (:inherit ruler-mode-default-face
- :background "grey64"
- )))
- "Face used to highlight the `window-margins' areas."
- :group 'ruler-mode)
-
(defface ruler-mode-current-column-face
'((t
(:inherit ruler-mode-default-face
--- 285,290 ----
***************
*** 286,492 ****
"Face used to highlight the `current-column' character."
:group 'ruler-mode)
\f
(defun ruler-mode-mouse-set-left-margin (start-event)
! "Set left margin to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! w col m lm0 lm rm)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! lm0 (or (car m) 0)
! rm (or (cdr m) 0)
! w (window-width)
! col (car (posn-col-row start))
! lm (min (- w rm) col))
! (message "Left margin set to %d (was %d)" lm lm0)
! (set-window-margins nil lm rm)))))
(defun ruler-mode-mouse-set-right-margin (start-event)
! "Set right margin to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! m col w lm rm0 rm)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! rm0 (or (cdr m) 0)
! lm (or (car m) 0)
! col (car (posn-col-row start))
! w (window-width)
! rm (max 0 (- w col)))
! (message "Right margin set to %d (was %d)" rm rm0)
! (set-window-margins nil lm rm)))))
! (defvar ruler-mode-mouse-current-grab-object nil
"Column symbol dragged in the ruler.
That is `fill-column', `comment-column', `goal-column', or nil when
nothing is dragged.")
(defun ruler-mode-mouse-grab-any-column (start-event)
! "Set a column symbol to the graduation with mouse dragging.
! See also variable `ruler-mode-mouse-current-grab-object'.
! START-EVENT is the mouse down event."
(interactive "e")
! (setq ruler-mode-mouse-current-grab-object nil)
(let* ((start (event-start start-event))
! m col w lm rm hs newc oldc)
(save-selected-window
(select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row start)) lm)
! w (window-width)
! hs (window-hscroll)
! newc (+ col hs))
! ;;
! ;; About the ways to handle the goal column:
! ;; A. update the value of the goal column if goal-column has
! ;; non-nil value and if the mouse is dragged
! ;; B. set value to the goal column if goal-column has nil and if
! ;; the mouse is just clicked, not dragged.
! ;; C. unset value to the goal column if goal-column has non-nil
! ;; and mouse is just clicked on goal-column character on the
! ;; ruler, not dragged.
! ;;
! (and (>= col 0) (< (+ col lm rm) w)
! (cond
! ((eq newc fill-column)
! (setq oldc fill-column)
! (setq ruler-mode-mouse-current-grab-object 'fill-column)
! t)
! ((eq newc comment-column)
! (setq oldc comment-column)
! (setq ruler-mode-mouse-current-grab-object 'comment-column)
! t)
! ((eq newc goal-column) ; A. update goal column
! (setq oldc goal-column)
! (setq ruler-mode-mouse-current-grab-object 'goal-column)
! t)
! ((null goal-column) ; B. set goal column
! (setq oldc goal-column)
! (setq goal-column newc)
! ;; mouse-2 coming AFTER drag-mouse-2 invokes `ding'.
! ;; This `ding' flushes the next messages about setting
! ;; goal column. So here I force fetch the event(mouse-2)
! ;; and throw away.
! (read-event)
! ;; Ding BEFORE `message' is OK.
! (if ruler-mode-set-goal-column-ding-flag
! (ding))
! (message
! "Goal column %d (click `%s' on the ruler again to unset it)"
! newc
! (propertize (char-to-string ruler-mode-goal-column-char)
! 'face 'ruler-mode-goal-column-face))
! ;; don't enter drag iteration
! nil))
! (if (eq 'click (ruler-mode-mouse-drag-any-column-iteration
! (posn-window start)))
! (if (eq 'goal-column ruler-mode-mouse-current-grab-object)
! ;; C. unset goal column
! (set-goal-column t))
! ;; *-column is updated; report it
! (message "%s is set to %d (was %d)"
! ruler-mode-mouse-current-grab-object
! (eval ruler-mode-mouse-current-grab-object)
! oldc))))))
(defun ruler-mode-mouse-drag-any-column-iteration (window)
"Update the ruler while dragging the mouse.
! WINDOW is the window where the last down-mouse event is occurred.
! Return a symbol `drag' if the mouse is actually dragged.
! Return a symbol `click' if the mouse is just clicked."
! (let (newevent
! (drag-count 0))
(track-mouse
! (while (progn
! (setq newevent (read-event))
! (mouse-movement-p newevent))
! (setq drag-count (1+ drag-count))
! (if (eq window (posn-window (event-end newevent)))
! (progn
! (ruler-mode-mouse-drag-any-column newevent)
! (force-mode-line-update)))))
! (if (and (eq drag-count 0)
! (eq 'click (car (event-modifiers newevent))))
'click
'drag)))
(defun ruler-mode-mouse-drag-any-column (start-event)
! "Update the ruler for START-EVENT, one mouse motion event."
(let* ((start (event-start start-event))
(end (event-end start-event))
! m col w lm rm hs newc)
(save-selected-window
(select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row end)) lm)
! w (window-width)
! hs (window-hscroll)
! newc (+ col hs))
! (if (and (>= col 0) (< (+ col lm rm) w))
! (set ruler-mode-mouse-current-grab-object newc)))))
\f
(defun ruler-mode-mouse-add-tab-stop (start-event)
"Add a tab stop to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (if ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! m col w lm rm hs ts)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row start)) lm)
! w (window-width)
! hs (window-hscroll)
! ts (+ col hs))
! (and (>= col 0) (< (+ col lm rm) w)
! (not (member ts tab-stop-list))
! (progn
! (message "Tab stop set to %d" ts)
! (setq tab-stop-list
! (sort (cons ts tab-stop-list)
! #'<)))))))))
(defun ruler-mode-mouse-del-tab-stop (start-event)
"Delete tab stop at the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (if ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! m col w lm rm hs ts)
! (if (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq m (window-margins)
! lm (or (car m) 0)
! rm (or (cdr m) 0)
! col (- (car (posn-col-row start)) lm)
! w (window-width)
! hs (window-hscroll)
! ts (+ col hs))
! (and (>= col 0) (< (+ col lm rm) w)
! (member ts tab-stop-list)
! (progn
! (message "Tab stop at %d deleted" ts)
! (setq tab-stop-list
! (delete ts tab-stop-list)))))))))
(defun ruler-mode-toggle-show-tab-stops ()
"Toggle showing of tab stops on the ruler."
--- 294,544 ----
"Face used to highlight the `current-column' character."
:group 'ruler-mode)
\f
+ (defmacro ruler-mode-left-fringe-cols ()
+ "Return the width, measured in columns, of the left fringe area."
+ '(ceiling (or (car (window-fringes)) 0)
+ (frame-char-width)))
+
+ (defmacro ruler-mode-right-fringe-cols ()
+ "Return the width, measured in columns, of the right fringe area."
+ '(ceiling (or (nth 1 (window-fringes)) 0)
+ (frame-char-width)))
+
+ (defun ruler-mode-left-scroll-bar-cols ()
+ "Return the width, measured in columns, of the right vertical scrollbar."
+ (let* ((wsb (window-scroll-bars))
+ (vtype (nth 2 wsb))
+ (cols (nth 1 wsb)))
+ (if (or (eq vtype 'left)
+ (and (eq vtype t)
+ (eq (frame-parameter nil 'vertical-scroll-bars) 'left)))
+ (or cols
+ (ceiling
+ ;; nil means it's a non-toolkit scroll bar,
+ ;; and its width in columns is 14 pixels rounded up.
+ (or (frame-parameter nil 'scroll-bar-width) 14)
+ ;; Always round up to multiple of columns.
+ (frame-char-width)))
+ 0)))
+
+ (defun ruler-mode-right-scroll-bar-cols ()
+ "Return the width, measured in columns, of the right vertical scrollbar."
+ (let* ((wsb (window-scroll-bars))
+ (vtype (nth 2 wsb))
+ (cols (nth 1 wsb)))
+ (if (or (eq vtype 'right)
+ (and (eq vtype t)
+ (eq (frame-parameter nil 'vertical-scroll-bars) 'right)))
+ (or cols
+ (ceiling
+ ;; nil means it's a non-toolkit scroll bar,
+ ;; and its width in columns is 14 pixels rounded up.
+ (or (frame-parameter nil 'scroll-bar-width) 14)
+ ;; Always round up to multiple of columns.
+ (frame-char-width)))
+ 0)))
+
+ (defsubst ruler-mode-full-window-width ()
+ "Return the full width of the selected window."
+ (let ((edges (window-edges)))
+ (- (nth 2 edges) (nth 0 edges))))
+
+ (defsubst ruler-mode-window-col (n)
+ "Return a column number relative to the selected window.
+ N is a column number relative to selected frame."
+ (- n
+ (car (window-edges))
+ (or (car (window-margins)) 0)
+ (ruler-mode-left-fringe-cols)
+ (ruler-mode-left-scroll-bar-cols)))
+ \f
(defun ruler-mode-mouse-set-left-margin (start-event)
! "Set left margin end to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! col w lm rm)
! (when (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq col (- (car (posn-col-row start)) (car (window-edges))
! (ruler-mode-left-scroll-bar-cols))
! w (- (ruler-mode-full-window-width)
! (ruler-mode-left-scroll-bar-cols)
! (ruler-mode-right-scroll-bar-cols)))
! (when (and (>= col 0) (< col w))
! (setq lm (window-margins)
! rm (or (cdr lm) 0)
! lm (or (car lm) 0))
! (message "Left margin set to %d (was %d)" col lm)
! (set-window-margins nil col rm))))))
(defun ruler-mode-mouse-set-right-margin (start-event)
! "Set right margin beginning to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
(let* ((start (event-start start-event))
(end (event-end start-event))
! col w lm rm)
! (when (eq start end) ;; mouse click
! (save-selected-window
! (select-window (posn-window start))
! (setq col (- (car (posn-col-row start)) (car (window-edges))
! (ruler-mode-left-scroll-bar-cols))
! w (- (ruler-mode-full-window-width)
! (ruler-mode-left-scroll-bar-cols)
! (ruler-mode-right-scroll-bar-cols)))
! (when (and (>= col 0) (< col w))
! (setq lm (window-margins)
! rm (or (cdr lm) 0)
! lm (or (car lm) 0)
! col (- w col 1))
! (message "Right margin set to %d (was %d)" col rm)
! (set-window-margins nil lm col))))))
! (defvar ruler-mode-dragged-symbol nil
"Column symbol dragged in the ruler.
That is `fill-column', `comment-column', `goal-column', or nil when
nothing is dragged.")
(defun ruler-mode-mouse-grab-any-column (start-event)
! "Drag a column symbol on the ruler.
! Start dragging on mouse down event START-EVENT, and update the column
! symbol value with the current value of the ruler graduation while
! dragging. See also the variable `ruler-mode-dragged-symbol'."
(interactive "e")
! (setq ruler-mode-dragged-symbol nil)
(let* ((start (event-start start-event))
! col newc oldc)
(save-selected-window
(select-window (posn-window start))
! (setq col (ruler-mode-window-col (car (posn-col-row start)))
! newc (+ col (window-hscroll)))
! (and
! (>= col 0) (< col (window-width))
! (cond
!
! ;; Handle the fill column.
! ((eq newc fill-column)
! (setq oldc fill-column
! ruler-mode-dragged-symbol 'fill-column)
! t) ;; Start dragging
!
! ;; Handle the comment column.
! ((eq newc comment-column)
! (setq oldc comment-column
! ruler-mode-dragged-symbol 'comment-column)
! t) ;; Start dragging
!
! ;; Handle the goal column.
! ;; A. On mouse down on the goal column character on the ruler,
! ;; update the `goal-column' value while dragging.
! ;; B. If `goal-column' is nil, set the goal column where the
! ;; mouse is clicked.
! ;; C. On mouse click on the goal column character on the
! ;; ruler, unset the goal column.
! ((eq newc goal-column) ; A. Drag the goal column.
! (setq oldc goal-column
! ruler-mode-dragged-symbol 'goal-column)
! t) ;; Start dragging
!
! ((null goal-column) ; B. Set the goal column.
! (setq oldc goal-column
! goal-column newc)
! ;; mouse-2 coming AFTER drag-mouse-2 invokes `ding'. This
! ;; `ding' flushes the next messages about setting goal
! ;; column. So here I force fetch the event(mouse-2) and
! ;; throw away.
! (read-event)
! ;; Ding BEFORE `message' is OK.
! (when ruler-mode-set-goal-column-ding-flag
! (ding))
! (message "Goal column set to %d (click on %s again to unset it)"
! newc
! (propertize (char-to-string ruler-mode-goal-column-char)
! 'face 'ruler-mode-goal-column-face))
! nil) ;; Don't start dragging.
! )
! (if (eq 'click (ruler-mode-mouse-drag-any-column-iteration
! (posn-window start)))
! (when (eq 'goal-column ruler-mode-dragged-symbol)
! ;; C. Unset the goal column.
! (set-goal-column t))
! ;; At end of dragging, report the updated column symbol.
! (message "%s is set to %d (was %d)"
! ruler-mode-dragged-symbol
! (symbol-value ruler-mode-dragged-symbol)
! oldc))))))
(defun ruler-mode-mouse-drag-any-column-iteration (window)
"Update the ruler while dragging the mouse.
! WINDOW is the window where occurred the last down-mouse event.
! Return the symbol `drag' if the mouse has been dragged, or `click' if
! the mouse has been clicked."
! (let ((drags 0)
! event)
(track-mouse
! (while (mouse-movement-p (setq event (read-event)))
! (setq drags (1+ drags))
! (when (eq window (posn-window (event-end event)))
! (ruler-mode-mouse-drag-any-column event)
! (force-mode-line-update))))
! (if (and (zerop drags) (eq 'click (car (event-modifiers event))))
'click
'drag)))
(defun ruler-mode-mouse-drag-any-column (start-event)
! "Update the value of the symbol dragged on the ruler.
! Called on each mouse motion event START-EVENT."
(let* ((start (event-start start-event))
(end (event-end start-event))
! col newc)
(save-selected-window
(select-window (posn-window start))
! (setq col (ruler-mode-window-col (car (posn-col-row end)))
! newc (+ col (window-hscroll)))
! (when (and (>= col 0) (< col (window-width)))
! (set ruler-mode-dragged-symbol newc)))))
\f
(defun ruler-mode-mouse-add-tab-stop (start-event)
"Add a tab stop to the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (when ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! col ts)
! (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)))
! ts (+ col (window-hscroll)))
! (and (>= col 0) (< col (window-width))
! (not (member ts tab-stop-list))
! (progn
! (message "Tab stop set to %d" ts)
! (setq tab-stop-list (sort (cons ts tab-stop-list)
! #'<)))))))))
(defun ruler-mode-mouse-del-tab-stop (start-event)
"Delete tab stop at the graduation where the mouse pointer is on.
START-EVENT is the mouse click event."
(interactive "e")
! (when ruler-mode-show-tab-stops
! (let* ((start (event-start start-event))
! (end (event-end start-event))
! col ts)
! (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)))
! ts (+ col (window-hscroll)))
! (and (>= col 0) (< col (window-width))
! (member ts tab-stop-list)
! (progn
! (message "Tab stop at %d deleted" ts)
! (setq tab-stop-list (delete ts tab-stop-list)))))))))
(defun ruler-mode-toggle-show-tab-stops ()
"Toggle showing of tab stops on the ruler."
***************
*** 542,548 ****
;; the current one is the ruler header line format.
(when (eq header-line-format ruler-mode-header-line-format)
(kill-local-variable 'header-line-format)
! (when ruler-mode-header-line-format-old
(setq header-line-format ruler-mode-header-line-format-old)))
(remove-hook 'post-command-hook ; remove local hook
#'force-mode-line-update t)))
--- 594,600 ----
;; the current one is the ruler header line format.
(when (eq header-line-format ruler-mode-header-line-format)
(kill-local-variable 'header-line-format)
! (when (local-variable-p 'ruler-mode-header-line-format-old)
(setq header-line-format ruler-mode-header-line-format-old)))
(remove-hook 'post-command-hook ; remove local hook
#'force-mode-line-update t)))
***************
*** 588,782 ****
mouse-2: unset goal column"
"Help string shown when mouse is on the goal column character.")
! (defconst ruler-mode-left-margin-help-echo
! "Left margin %S"
! "Help string shown when mouse is over the left margin area.")
!
! (defconst ruler-mode-right-margin-help-echo
! "Right margin %S"
! "Help string shown when mouse is over the right margin area.")
!
! (defmacro ruler-mode-left-fringe-cols ()
! "Return the width, measured in columns, of the left fringe area."
! '(round (or (frame-parameter nil 'left-fringe) 0)
! (frame-char-width)))
!
! (defmacro ruler-mode-right-fringe-cols ()
! "Return the width, measured in columns, of the right fringe area."
! '(round (or (frame-parameter nil 'right-fringe) 0)
! (frame-char-width)))
!
! (defmacro ruler-mode-left-scroll-bar-cols ()
! "Return the width, measured in columns, of the left vertical scrollbar."
! '(if (eq (frame-parameter nil 'vertical-scroll-bars) 'left)
! (let ((sbw (frame-parameter nil 'scroll-bar-width)))
! ;; nil means it's a non-toolkit scroll bar,
! ;; and its width in columns is 14 pixels rounded up.
! (unless sbw (setq sbw 14))
! ;; Always round up to multiple of columns.
! (ceiling sbw (frame-char-width)))
! 0))
!
! (defmacro ruler-mode-right-scroll-bar-cols ()
! "Return the width, measured in columns, of the right vertical scrollbar."
! '(if (eq (frame-parameter nil 'vertical-scroll-bars) 'right)
! (round (or (frame-parameter nil 'scroll-bar-width) 0)
! (frame-char-width))
! 0))
\f
(defun ruler-mode-ruler ()
"Return a string ruler."
! (if ruler-mode
! (let* ((j (+ (ruler-mode-left-fringe-cols)
! (ruler-mode-left-scroll-bar-cols)))
! (w (+ (window-width) j))
! (m (window-margins))
! (l (or (car m) 0))
! (r (or (cdr m) 0))
! (o (- (window-hscroll) l j))
! (i 0)
! (ruler (concat
! ;; unit graduations
! (make-string w ruler-mode-basic-graduation-char)
! ;; extra space to fill the header line
! (make-string (+ (ruler-mode-right-fringe-cols)
! (ruler-mode-right-scroll-bar-cols))
! ?\ )))
! c k)
!
! ;; Setup default face and help echo.
! (put-text-property 0 (length ruler)
! 'face 'ruler-mode-default-face
! ruler)
! (put-text-property 0 (length ruler)
! 'help-echo
! (if ruler-mode-show-tab-stops
! ruler-mode-ruler-help-echo-when-tab-stops
! (if goal-column
! ruler-mode-ruler-help-echo-when-goal-column
! ruler-mode-ruler-help-echo))
! ruler)
! ;; Setup the local map.
! (put-text-property 0 (length ruler)
! 'local-map ruler-mode-map
! ruler)
!
! (setq j (+ l j))
! ;; Setup the left margin area.
! (put-text-property
! i j 'face 'ruler-mode-margins-face
! ruler)
! (put-text-property
! i j 'help-echo (format ruler-mode-left-margin-help-echo l)
! ruler)
! (while (< i j)
! (aset ruler i ruler-mode-margins-char)
! (setq i (1+ i)))
!
! ;; Setup the ruler area.
! (setq r (- w r))
! (while (< i r)
! (setq j (+ i o))
! (cond
! ((= (mod j 10) 0)
! (setq c (number-to-string (/ j 10))
! m (length c)
! k i)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-column-number-face
! ruler)
! (while (and (> m 0) (>= k 0))
! (aset ruler k (aref c (setq m (1- m))))
! (setq k (1- k)))
! )
! ((= (mod j 5) 0)
! (aset ruler i ruler-mode-inter-graduation-char)
! )
! )
! (setq i (1+ i)))
!
! ;; Setup the right margin area.
! (put-text-property
! i (length ruler) 'face 'ruler-mode-margins-face
! ruler)
! (put-text-property
! i (length ruler) 'help-echo
! (format ruler-mode-right-margin-help-echo (- w r))
! ruler)
! (while (< i (length ruler))
! (aset ruler i ruler-mode-margins-char)
! (setq i (1+ i)))
!
! ;; Show the `goal-column' marker.
! (if goal-column
! (progn
! (setq i (- goal-column o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-goal-column-char)
! (progn
! (put-text-property
! i (1+ i) 'face 'ruler-mode-goal-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-goal-column-help-echo
! ruler))
! )))
!
! ;; Show the `comment-column' marker.
! (setq i (- comment-column o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-comment-column-char)
! (progn
! (put-text-property
! i (1+ i) 'face 'ruler-mode-comment-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-comment-column-help-echo
! ruler)))
!
! ;; Show the `fill-column' marker.
! (setq i (- fill-column o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-fill-column-char)
! (progn (put-text-property
! i (1+ i) 'face 'ruler-mode-fill-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-fill-column-help-echo
! ruler)))
!
! ;; Show the `tab-stop-list' markers.
! (if ruler-mode-show-tab-stops
! (let ((tsl tab-stop-list) ts)
! (while tsl
! (setq ts (car tsl)
! tsl (cdr tsl)
! i (- ts o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-tab-stop-char)
! (put-text-property
! i (1+ i)
! 'face (cond
! ;; Don't override the *-column face
! ((eq ts fill-column)
! 'ruler-mode-fill-column-face)
! ((eq ts comment-column)
! 'ruler-mode-comment-column-face)
! ((eq ts goal-column)
! 'ruler-mode-goal-column-face)
! (t
! 'ruler-mode-tab-stop-face))
! ruler)))))
!
! ;; Show the `current-column' marker.
! (setq i (- (current-column) o))
! (and (>= i 0) (< i r)
! (aset ruler i ruler-mode-current-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-current-column-face
! ruler))
!
! ruler)))
(provide 'ruler-mode)
--- 640,789 ----
mouse-2: unset goal column"
"Help string shown when mouse is on the goal column character.")
! (defconst ruler-mode-margin-help-echo
! "%s margin %S"
! "Help string shown when mouse is over a margin area.")
!
! (defconst ruler-mode-fringe-help-echo
! "%s fringe %S"
! "Help string shown when mouse is over a fringe area.")
\f
(defun ruler-mode-ruler ()
"Return a string ruler."
! (when ruler-mode
! (let* ((fullw (ruler-mode-full-window-width))
! (w (window-width))
! (m (window-margins))
! (lsb (ruler-mode-left-scroll-bar-cols))
! (lf (ruler-mode-left-fringe-cols))
! (lm (or (car m) 0))
! (rsb (ruler-mode-right-scroll-bar-cols))
! (rf (ruler-mode-right-fringe-cols))
! (rm (or (cdr m) 0))
! (ruler (make-string fullw ruler-mode-basic-graduation-char))
! (o (+ lsb lf lm))
! (x 0)
! (i o)
! (j (window-hscroll))
! k c l1 l2 r2 r1 h1 h2 f1 f2)
!
! ;; Setup the default properties.
! (put-text-property 0 fullw 'face 'ruler-mode-default-face ruler)
! (put-text-property 0 fullw
! 'help-echo
! (cond
! (ruler-mode-show-tab-stops
! ruler-mode-ruler-help-echo-when-tab-stops)
! (goal-column
! ruler-mode-ruler-help-echo-when-goal-column)
! (t
! ruler-mode-ruler-help-echo))
! ruler)
! ;; Setup the local map.
! (put-text-property 0 fullw 'local-map ruler-mode-map ruler)
!
! ;; Setup the active area.
! (while (< x w)
! ;; Graduations.
! (cond
! ;; Show a number graduation.
! ((= (mod j 10) 0)
! (setq c (number-to-string (/ j 10))
! m (length c)
! k i)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-column-number-face
! ruler)
! (while (and (> m 0) (>= k 0))
! (aset ruler k (aref c (setq m (1- m))))
! (setq k (1- k))))
! ;; Show an intermediate graduation.
! ((= (mod j 5) 0)
! (aset ruler i ruler-mode-inter-graduation-char)))
! ;; Special columns.
! (cond
! ;; Show the `current-column' marker.
! ((= j (current-column))
! (aset ruler i ruler-mode-current-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-current-column-face
! ruler))
! ;; Show the `goal-column' marker.
! ((and goal-column (= j goal-column))
! (aset ruler i ruler-mode-goal-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-goal-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-goal-column-help-echo
! ruler))
! ;; Show the `comment-column' marker.
! ((= j comment-column)
! (aset ruler i ruler-mode-comment-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-comment-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-comment-column-help-echo
! ruler))
! ;; Show the `fill-column' marker.
! ((= j fill-column)
! (aset ruler i ruler-mode-fill-column-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-fill-column-face
! ruler)
! (put-text-property
! i (1+ i) 'help-echo ruler-mode-fill-column-help-echo
! ruler))
! ;; Show the `tab-stop-list' markers.
! ((and ruler-mode-show-tab-stops (member j tab-stop-list))
! (aset ruler i ruler-mode-tab-stop-char)
! (put-text-property
! i (1+ i) 'face 'ruler-mode-tab-stop-face
! ruler)))
! (setq i (1+ i)
! j (1+ j)
! x (1+ x)))
!
! ;; Highlight the fringes and margins.
! (if (nth 2 (window-fringes))
! ;; fringes outside margins.
! (setq l1 lf
! l2 lm
! r2 rm
! r1 rf
! h1 ruler-mode-fringe-help-echo
! h2 ruler-mode-margin-help-echo
! f1 'ruler-mode-fringes-face
! f2 'ruler-mode-margins-face)
! ;; fringes inside margins.
! (setq l1 lm
! l2 lf
! r2 rf
! r1 rm
! h1 ruler-mode-margin-help-echo
! h2 ruler-mode-fringe-help-echo
! f1 'ruler-mode-margins-face
! f2 'ruler-mode-fringes-face))
! (setq i lsb j (+ i l1))
! (put-text-property i j 'face f1 ruler)
! (put-text-property i j 'help-echo (format h1 "Left" l1) ruler)
! (setq i j j (+ i l2))
! (put-text-property i j 'face f2 ruler)
! (put-text-property i j 'help-echo (format h2 "Left" l2) ruler)
! (setq i (+ o w) j (+ i r2))
! (put-text-property i j 'face f2 ruler)
! (put-text-property i j 'help-echo (format h2 "Right" r2) ruler)
! (setq i j j (+ i r1))
! (put-text-property i j 'face f1 ruler)
! (put-text-property i j 'help-echo (format h1 "Right" r1) ruler)
!
! ;; Show inactive areas.
! (put-text-property 0 lsb 'face 'ruler-mode-pad-face ruler)
! (put-text-property j fullw 'face 'ruler-mode-pad-face ruler)
!
! ;; Return the ruler propertized string.
! ruler)))
(provide 'ruler-mode)
^ permalink raw reply [flat|nested] 2+ messages in thread
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2003-05-27 20:11 ruler-mode.el version 1.6 David Ponce
2003-05-30 12:32 ` David Ponce
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