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To: vim_dev@googlegroups.com
Subject: Patch 7.3.084
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
------------

Patch 7.3.084
Problem:    When splitting the window, the new one scrolls with the cursor at
	    the top.
Solution:   Compute w_fraction before setting the new height.
Files:	    src/window.c


*** ../vim-7.3.083/src/window.c	2010-09-21 16:56:29.000000000 +0200
--- src/window.c	2010-12-17 17:09:51.000000000 +0100
***************
*** 70,76 ****
  #endif /* FEAT_WINDOWS */
  
  static win_T *win_alloc __ARGS((win_T *after, int hidden));
! static void win_new_height __ARGS((win_T *, int));
  
  #define URL_SLASH	1		/* path_is_url() has found "://" */
  #define URL_BACKSLASH	2		/* path_is_url() has found ":\\" */
--- 70,77 ----
  #endif /* FEAT_WINDOWS */
  
  static win_T *win_alloc __ARGS((win_T *after, int hidden));
! static void set_fraction __ARGS((win_T *wp));
! static void win_new_height __ARGS((win_T *wp, int height));
  
  #define URL_SLASH	1		/* path_is_url() has found "://" */
  #define URL_BACKSLASH	2		/* path_is_url() has found ":\\" */
***************
*** 983,992 ****
--- 984,999 ----
      else
  	frame_append(curfrp, frp);
  
+     /* Set w_fraction now so that the cursor keeps the same relative
+      * vertical position. */
+     set_fraction(oldwin);
+     wp->w_fraction = oldwin->w_fraction;
+ 
  #ifdef FEAT_VERTSPLIT
      if (flags & WSP_VERT)
      {
  	wp->w_p_scr = curwin->w_p_scr;
+ 
  	if (need_status)
  	{
  	    win_new_height(oldwin, oldwin->w_height - 1);
***************
*** 5453,5458 ****
--- 5460,5478 ----
  
  #endif /* FEAT_WINDOWS */
  
+ #define FRACTION_MULT	16384L
+ 
+ /*
+  * Set wp->w_fraction for the current w_wrow and w_height.
+  */
+     static void
+ set_fraction(wp)
+     win_T	*wp;
+ {
+     wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT
+ 				    + FRACTION_MULT / 2) / (long)wp->w_height;
+ }
+ 
  /*
   * Set the height of a window.
   * This takes care of the things inside the window, not what happens to the
***************
*** 5465,5471 ****
  {
      linenr_T	lnum;
      int		sline, line_size;
- #define FRACTION_MULT	16384L
  
      /* Don't want a negative height.  Happens when splitting a tiny window.
       * Will equalize heights soon to fix it. */
--- 5485,5490 ----
***************
*** 5475,5482 ****
  	return;	    /* nothing to do */
  
      if (wp->w_wrow != wp->w_prev_fraction_row && wp->w_height > 0)
! 	wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT
! 				    + FRACTION_MULT / 2) / (long)wp->w_height;
  
      wp->w_height = height;
      wp->w_skipcol = 0;
--- 5494,5500 ----
  	return;	    /* nothing to do */
  
      if (wp->w_wrow != wp->w_prev_fraction_row && wp->w_height > 0)
! 	set_fraction(wp);
  
      wp->w_height = height;
      wp->w_skipcol = 0;
*** ../vim-7.3.083/src/version.c	2010-12-17 16:27:10.000000000 +0100
--- src/version.c	2010-12-17 17:14:19.000000000 +0100
***************
*** 716,717 ****
--- 716,719 ----
  {   /* Add new patch number below this line */
+ /**/
+     84,
  /**/

-- 
How To Keep A Healthy Level Of Insanity:
12. Sing along at the opera.

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///