(size_window): Compute size difference from sum of old

child window sizes instead of from parent's size.

2 files changed, 17 insertions, 10 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 5f5c7c569cf..f6ba041731c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,8 @@
 2000-10-26  Gerd Moellmann  <gerd@gnu.org>
 
+        * window.c (size_window): Compute size difference from sum of old
+        child window sizes instead of from parent's size.
+
         * xdisp.c (pos_visible_p): Change current buffer if necessary.
         Handle obscured lines at the top of the window.
 
diff --git a/src/window.c b/src/window.c
index 2db5ddd2215..38724e22bbc 100644
--- a/src/window.c
+++ b/src/window.c
@@ -2277,12 +2277,12 @@ size_window (window, size, width_p, nodelete_p)
      Preserve it as long as that is at all possible.  */
   if (width_p)
     {
-      old_size = XFASTINT (w->width);
+      old_size = XINT (w->width);
       min_size = window_min_width;
     }
   else
     {
-      old_size = XFASTINT (w->height);
+      old_size = XINT (w->height);
       min_size = window_min_height;
     }
   
@@ -2341,18 +2341,22 @@ size_window (window, size, width_p, nodelete_p)
     {
       int fixed_size, each, extra, n;
       int resize_fixed_p, nfixed;
-      int last_pos, first_pos, nchildren;
+      int last_pos, first_pos, nchildren, total;
 
       /* Determine the fixed-size portion of the this window, and the
          number of child windows.  */
-      fixed_size = nchildren = nfixed = 0;
+      fixed_size = nchildren = nfixed = total = 0;
       for (child = *forward; !NILP (child); child = c->next, ++nchildren)
         {
+          int child_size;
+          
           c = XWINDOW (child);
+          child_size = width_p ? XINT (c->width) : XINT (c->height);
+          total += child_size;
+          
           if (window_fixed_size_p (c, width_p, 0))
             {
-              fixed_size += (width_p
-                             ? XFASTINT (c->width) : XFASTINT (c->height));
+              fixed_size += child_size;
               ++nfixed;
             }
         }
@@ -2365,11 +2369,11 @@ size_window (window, size, width_p, nodelete_p)
       /* Compute how many lines/columns to add to each child.  The
          value of extra takes care of rounding errors.  */
       n = resize_fixed_p ? nchildren : nchildren - nfixed;
-      each = (size - old_size) / n;
-      extra = (size - old_size) - n * each;
+      each = (size - total) / n;
+      extra = (size - total) - n * each;
 
       /* Compute new children heights and edge positions.  */
-      first_pos = width_p ? XFASTINT (w->left) : XFASTINT (w->top);
+      first_pos = width_p ? XINT (w->left) : XINT (w->top);
       last_pos = first_pos;
       for (child = *forward; !NILP (child); child = c->next)
         {
@@ -2412,7 +2416,7 @@ size_window (window, size, width_p, nodelete_p)
           {
             int child_size;
             c = XWINDOW (child);
-            child_size = width_p ? XFASTINT (c->width) : XFASTINT (c->height);
+            child_size = width_p ? XINT (c->width) : XINT (c->height);
             size_window (child, child_size, width_p, 0);
           }
     }