X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=blobdiff_plain;f=menu.c;h=35a49879fd7b67a19dd89f97a93b5f2eb09697b5;hp=2243919c2ee6b85a9d66ec49042e1ac9e734b3a5;hb=f404a0ca916be07049af51a3022baaaaab94def6;hpb=3d937534e7b1ee723f86594b5e4c64c95158a933

diff --git a/menu.c b/menu.c
index 2243919..35a4987 100644
--- a/menu.c
+++ b/menu.c
@@ -16,6 +16,10 @@
  *     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  */
 
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include "mutt.h"
 #include "mutt_curses.h"
 #include "mutt_menu.h"
@@ -366,32 +370,37 @@ void menu_redraw_prompt (MUTTMENU *menu)
 
 void menu_check_recenter (MUTTMENU *menu)
 {
-  if (menu->max <= menu->pagelen && menu->top != 0)
+  int c = MIN (MenuContext, menu->pagelen / 2);
+  int old_top = menu->top;
+
+  if (menu->max <= menu->pagelen) /* less entries than lines */
   {
-    menu->top = 0;
-    set_option (OPTNEEDREDRAW);
-    menu->redraw |= REDRAW_INDEX;
+    if (menu->top != 0) {
+      menu->top = 0;
+      set_option (OPTNEEDREDRAW);
+    }
   }
-  else if (menu->current >= menu->top + menu->pagelen)
+  else if (menu->current >= menu->top + menu->pagelen - c) /* indicator below bottom threshold */
   {
     if (option (OPTMENUSCROLL) || (menu->pagelen <= 0))
-      menu->top = menu->current - menu->pagelen + 1;
+      menu->top = menu->current - menu->pagelen + c + 1;
     else
-      menu->top += menu->pagelen * ((menu->current - menu->top) / menu->pagelen);
-    menu->redraw |= REDRAW_INDEX;
+      menu->top += (menu->pagelen - c) * ((menu->current - menu->top) / (menu->pagelen - c)) - c;
   }
-  else if (menu->current < menu->top)
+  else if (menu->current < menu->top + c) /* indicator above top threshold */
   {
     if (option (OPTMENUSCROLL) || (menu->pagelen <= 0))
-      menu->top = menu->current;
+      menu->top = menu->current - c;
     else
-    {
-      menu->top -= menu->pagelen * ((menu->top + menu->pagelen - 1 - menu->current) / menu->pagelen);
-      if (menu->top < 0)
-        menu->top = 0;
-    }
-    menu->redraw |= REDRAW_INDEX;
+      menu->top -= (menu->pagelen - c) * ((menu->top + menu->pagelen - 1 - menu->current) / (menu->pagelen - c)) - c;
   }
+
+  /* make entries stick to bottom */
+  menu->top = MIN (menu->top, menu->max - menu->pagelen);
+  menu->top = MAX (menu->top, 0);
+
+  if (menu->top != old_top)
+    menu->redraw |= REDRAW_INDEX;
 }
 
 void menu_jump (MUTTMENU *menu)
@@ -475,7 +484,9 @@ void menu_next_page (MUTTMENU *menu)
 
 void menu_prev_page (MUTTMENU *menu)
 {
-  if (menu->top > 0)
+  int c = MIN (MenuContext, menu->pagelen / 2);
+
+  if (menu->top > c)
   {
     if ((menu->top -= menu->pagelen) < 0)
       menu->top = 0;