(fit-window-to-buffer): Don't check

window-text-height.  Assure that the last line is fully visible.

diff --git a/lisp/window.el b/lisp/window.el
index 92451fb..89dc9c6 100644 (file)
--- a/lisp/window.el
+++ b/lisp/window.el
@@ -448,19 +448,16 @@ header-line."
   (let* ((window-height
          ;; The current height of WINDOW
          (window-height window))
-        (extra
-         ;; The amount by which the text height differs from the window
-         ;; height.
-         (- window-height (window-text-height window)))
         (text-height
          ;; The height necessary to show the buffer displayed by WINDOW
          ;; (`count-screen-lines' always works on the current buffer).
-         (with-current-buffer (window-buffer window)
-           (count-screen-lines)))
+         ;; We add 1 for mode-line.
+         (1+ (with-current-buffer (window-buffer window)
+               (count-screen-lines))))
         (delta
          ;; Calculate how much the window height has to change to show
          ;; text-height lines, constrained by MIN-HEIGHT and MAX-HEIGHT.
-         (- (max (min (+ text-height extra) max-height)
+         (- (max (min text-height max-height)
                  (or min-height window-min-height))
             window-height))
         ;; We do our own height checking, so avoid any restrictions due to
@@ -478,7 +475,22 @@ header-line."
          (enlarge-window delta)
        (save-selected-window
          (select-window window)
-         (enlarge-window delta))))))
+         (enlarge-window delta))))
+
+    ;; Check if the last line is surely fully visible.  If not,
+    ;; enlarge the window.
+    (let ((pos (with-current-buffer (window-buffer window)
+                (save-excursion
+                  (goto-char (point-max))
+                  (if (and (bolp) (not (bobp)))
+                      (1- (point))
+                    (point))))))
+      (set-window-vscroll window 0)
+      (save-selected-window
+       (select-window window)
+       (while (and (< (window-height window) max-height) 
+                   (not (pos-visible-in-window-p pos window t)))
+         (enlarge-window 1))))))
 
 (defun shrink-window-if-larger-than-buffer (&optional window)
   "Shrink the WINDOW to be as small as possible to display its contents.