Re: Emacs Mac port

[YAMAMOTO Mitsuharu]

>>>>> On Sun, 10 Jun 2012 18:29:26 +0900, YAMAMOTO Mitsuharu <address@hidden> 
>>>>> said:

> Emacs 24 Mac port 3.0 is now available from

> ftp://ftp.math.s.chiba-u.ac.jp/emacs/emacs-24.1-mac-3.0.tar.gz

> This version is based on Emacs 24.1.

It turned out that the pixel-based mouse wheel smooth scroll had a
problem: scrolling up the contents of a buffer with a header line is
sometimes jumpy.  Please apply the patch below.  Sorry for the
inconvenience.

(This is due to some incompatibility between Emacs 23 and 24 I
overlooked, so do not apply it to Emacs 23 Mac port 2.1 .)

                                     YAMAMOTO Mitsuharu
                                address@hidden

=== modified file 'lisp/term/mac-win.el'
*** lisp/term/mac-win.el        2012-06-01 11:45:25 +0000
--- lisp/term/mac-win.el        2012-06-11 07:14:04 +0000
***************
*** 1977,1982 ****
--- 1977,1987 ----
                                (cadr (pos-visible-in-window-p
                                       (posn-point target-posn) nil t)))
                               (scrolled-pixel-height (- target-y first-y)))
+                         ;; Emacs 23 -> 24 incompatibility: the
+                         ;; actual row part of POSITION now counts
+                         ;; the header line.
+                         (if header-line-height
+                             (setq target-row (1- target-row)))
                          (scroll-up (if (= delta-y scrolled-pixel-height)
                                         target-row
                                       (1+ target-row)))