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Article #3550

Re: why do editors "shrink-wrap" the text?

#3550
From: Silver
Date: Mon, 17 Apr 1989 00:57
42 lines
2410 bytes
> Ack!  It doesn't work with the mouse.

Afraid to get your hands dirty?  The following function does what you want (I
think), a trivial change to x-mouse-set-point.

;; Copyright (C) 1987, 1989 Free Software Foundation, Inc.

(defun x-mouse-set-point (position &optional force)
  "Select Emacs window under the mouse, and move point to character nearest
the mouse position.  If FORCE is non-nil, appropriate whitespace is inserted to
ensure that point is moved to the mouse's position."

  (let* ((relative-coordinate (x-mouse-select position))
         (rel-x (car relative-coordinate))
         (rel-y (car (cdr relative-coordinate))))
    (if relative-coordinate
      (let ((delta-y (- rel-y (move-to-window-line rel-y)))
            (delta-x (- rel-x (move-to-column (+ rel-x (current-column))))))
        (if force
          (progn (if (/= delta-y 0) (newline delta-y))
                 (if (/= delta-x 0) (indent-to-column rel-x))))))))

;; Suitable for picture-mode.
(defun x-mouse-set-point-force (position)
"Like x-mouse-set-point, except the no FORCE is supplied - it is always t.  So,
the point is always moved directly to the mouse."
  (x-mouse-set-point position t))

Ok, so that's takes care of the function.  Now, to bind it to a key...

;; Example binding for x-mouse-set-point-force, to the left button, shifted.
(define-key mouse-map x-button-s-left 'x-mouse-set-point-force)

> Tacked on is right.

Are you saying picture mode is `tacked on' to GNU Emacs?  Whadya want, it
works...  Considering what it does, I'd say it's not bad at all.  I mean, it
changes one of the basic, hard-coded premises of buffers in Emacs.  And
although it took a little work and thought, by looking at the code I guess that
it wasn't difficult to implement, and it doesn't look difficult to extend.

Regards, [Ag] gaynor@rutgers.edu
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Message-ID: <Apr.16.20.57.07.1989.2012@athos.rutgers.edu>
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!bloom-beacon!tut.cis.ohio-state.edu!rutgers!aramis.rutgers.edu!athos.rutgers.edu!gaynor
References: <1686@wpi.wpi.edu> <97499@sun.Eng.Sun.COM> <Apr.5.05.39.04.1989.17024@athos.rutgers.edu> <3903@mipos3.intel.com>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!bloom-beacon!tut.cis.ohio-state.edu!rutgers!aramis.rutgers.edu!athos.rutgers.edu!gaynor
From: gaynor@athos.rutgers.edu (Silver)
Newsgroups: comp.editors
Subject: Re: why do editors "shrink-wrap" the text?
Message-ID: <Apr.16.20.57.07.1989.2012@athos.rutgers.edu>
Date: 17 Apr 89 00:57:22 GMT
References: <1686@wpi.wpi.edu> <97499@sun.Eng.Sun.COM> <Apr.5.05.39.04.1989.17024@athos.rutgers.edu> <3903@mipos3.intel.com>
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Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 42