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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 ///