Remove some function declarations, no longer needed or correct

[bpt/emacs.git] / lisp / mouse-drag.el

diff --git a/lisp/mouse-drag.el b/lisp/mouse-drag.el
index 84a680b..082c923 100644 (file)
--- a/lisp/mouse-drag.el
+++ b/lisp/mouse-drag.el
@@ -1,7 +1,6 @@
 ;;; mouse-drag.el --- use mouse-2 to do a new style of scrolling
 
-;; Copyright (C) 1996, 1997, 2001, 2002, 2003, 2004,
-;;   2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+;; Copyright (C) 1996-1997, 2001-2014 Free Software Foundation, Inc.
 
 ;; Author: John Heidemann <johnh@ISI.EDU>
 ;; Keywords: mouse
@@ -47,7 +46,7 @@
 ;; If you like mouse-drag, you should also check out mouse-copy
 ;; for ``one-click text copy and move''.
 ;;
-;; To use mouse-drag, place the following in your .emacs file:
+;; To use mouse-drag, place the following in your init file:
 ;; -either-
 ;;     (global-set-key [down-mouse-2] 'mouse-drag-throw)
 ;; -or-
@@ -157,20 +156,20 @@ Keep the cursor on the screen as needed."
   "Determine if it's wise to enable col-scrolling for the current window.
 Basically, we check for existing horizontal scrolling."
   (or truncate-lines
-      (> (window-hscroll (selected-window)) 0)
+      (> (window-hscroll) 0)
       (not (window-full-width-p))
       (and
        mouse-drag-electric-col-scrolling
        (save-excursion  ;; on a long line?
         (let
-            ((beg (progn (beginning-of-line) (point)))
+            ((beg (line-beginning-position))
              (end (progn (end-of-line) (point))))
           (if (> (- end beg) (window-width))
               (setq truncate-lines t)
             nil))))))
 
 (defvar mouse-throw-with-scroll-bar nil
-  "*Set direction of mouse-throwing.
+  "Set direction of mouse-throwing.
 If nil, the text moves in the direction the mouse moves.
 If t, the scroll bar moves in the direction the mouse moves.")
 (defconst mouse-throw-magnifier-min -6)
@@ -215,13 +214,10 @@ To test this function, evaluate:
         (start-row (cdr (posn-col-row start-posn)))
         (start-col (car (posn-col-row start-posn)))
         (old-selected-window (selected-window))
-        event end row mouse-delta scroll-delta
+        event end row scroll-delta
         have-scrolled
-        window-last-row
-        col mouse-col-delta window-last-col
+        col
         (scroll-col-delta 0)
-        adjusted-mouse-col-delta
-        adjusted-mouse-delta
         ;; be conservative about allowing horizontal scrolling
         (col-scrolling-p (mouse-drag-should-do-col-scrolling)))
     (select-window start-window)
@@ -276,10 +272,10 @@ To test this function, evaluate:
         (start-row (cdr (posn-col-row start-posn)))
         (start-col (car (posn-col-row start-posn)))
         (old-selected-window (selected-window))
-        event end row mouse-delta scroll-delta
+        event end row scroll-delta
         have-scrolled
         window-last-row
-        col mouse-col-delta window-last-col
+        col window-last-col
         (scroll-col-delta 0)
         ;; be conservative about allowing horizontal scrolling
         (col-scrolling-p (mouse-drag-should-do-col-scrolling)))
@@ -295,7 +291,7 @@ To test this function, evaluate:
               (or (mouse-movement-p event)
                   (eq (car-safe event) 'switch-frame)))
        ;; Scroll if see if we're on the edge.
-       ;; NEEDSWORK: should handle mouse-in-other window.
+       ;; FIXME: should handle mouse-in-other window.
        (cond
         ((not (eq start-window (posn-window end)))
          t) ; wait for return to original window
@@ -326,5 +322,4 @@ To test this function, evaluate:
 
 (provide 'mouse-drag)
 
-;; arch-tag: e47354ff-82f5-42c4-b3dc-88dd9c04b770
 ;;; mouse-drag.el ends here