Hi, here's a patch to correct the behaviour of the "C-l" gesture in Climacs to be more like the Emacs one.

Index: drei-redisplay.lisp =================================================================== RCS file: /project/mcclim/cvsroot/mcclim/Drei/drei-redisplay.lisp,v retrieving revision 1.71 diff -u -r1.71 drei-redisplay.lisp --- drei-redisplay.lisp 3 May 2008 07:47:17 -0000 1.71 +++ drei-redisplay.lisp 27 Sep 2010 15:01:16 -0000 @@ -1090,6 +1090,12 @@ (declare (ignore y1)) (- x2 x1)))

+(defmethod bounding-rectangle-height ((view drei-buffer-view)) + (multiple-value-bind (x1 y1 x2 y2) + (bounding-rectangle* view) + (declare (ignore x1 x2)) + (- y2 y1))) + (defun drei-bounding-rectangle* (drei-instance) "Return the bounding rectangle of the visual appearance of `drei-instance' as four values, just as `bounding-rectangle*'." @@ -1172,15 +1178,22 @@ "Try to put point close to the middle of the pane by moving top half a pane-size up." (let* ((view (view drei-pane)) - (nb-lines-in-pane (number-of-lines-in-region (top view) (bot view)))) - (with-accessors ((top top) (point point)) view - (setf (offset top) (offset point)) - (beginning-of-line top) - (loop do (beginning-of-line top) - repeat (floor nb-lines-in-pane 2) - until (beginning-of-buffer-p top) - do (decf (offset top)) - (beginning-of-line top)) + (buffer (buffer view)) + (line-and-space-height (+ (text-style-height (medium-merged-text-style + (sheet-medium drei-pane)) drei-pane) + (stream-vertical-spacing drei-pane))) + (nb-lines-in-pane (floor (bounding-rectangle-height drei-pane) + line-and-space-height)) + (nb-lines-in-buffer (number-of-lines buffer))) + (when (> nb-lines-in-buffer nb-lines-in-pane) + (with-accessors ((top top) (point point)) view + (setf (offset top) (offset point)) + (beginning-of-line top) + (loop do (beginning-of-line top) + repeat (floor nb-lines-in-pane 2) + until (beginning-of-buffer-p top) + do (decf (offset top)) + (beginning-of-line top))) (invalidate-all-strokes view :modified t))))

(defun adjust-pane (drei-pane)