Trimming some redundant code, and correcting scrolling behaviour

without softwrap.  And adding a few more NANO_TINY wrappings.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4633 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -4,6 +4,9 @@
 	* src/move.c (do_down) - Correctly compute the minimum amount
 	to scroll when softwrap is on and there are overlong lines.
 	* src/winio.c (edit_scroll) - Disable amount computation here.
+	* src/move.c (do_down) - Trim some redundant code, and correct
+	the scrolling behaviour when softwrap is off -- the construct
+	(amount ? amount : 1) wasn't doing what I intended.
 
 2014-03-01 Chris Allegretta <chrisa@asty.org>
 	* global.c (shortcut_init) - fix an issue with the split

src/move.c

@@ -563,15 +563,15 @@ void do_down(
 #endif
 	)
 {
-    bool onlastline = FALSE;
+#ifndef NANO_TINY
     int amount, enough = 0;
     filestruct *topline;
+#endif
 
     /* If we're at the bottom of the file, get out. */
     if (openfile->current == openfile->filebot)
 	return;
 
-
     assert(ISSET(SOFTWRAP) || openfile->current_y == openfile->current->lineno - openfile->edittop->lineno);
 
     /* Move the current line of the edit window down. */
@@ -579,9 +579,8 @@ void do_down(
     openfile->current_x = actual_x(openfile->current->data,
 	openfile->placewewant);
 
+#ifndef NANO_TINY
     if (ISSET(SOFTWRAP)) {
-	if (openfile->current->lineno - openfile->edittop->lineno >= maxrows)
-	    onlastline = TRUE;
 	/* Compute the amount to scroll. */
 	amount = (strlenpt(openfile->current->data) / COLS + openfile->current_y + 2
 		 + strlenpt(openfile->current->prev->data) / COLS - editwinrows);
@@ -596,26 +595,27 @@ void do_down(
 	    topline = topline->next;
 	}
     }
+#endif
 
     /* If scroll_only is FALSE and if we're on the last line of the
      * edit window, scroll the edit window down one line if we're in
      * smooth scrolling mode, or down half a page if we're not.  If
      * scroll_only is TRUE, scroll the edit window down one line
      * unconditionally. */
-    if (onlastline || openfile->current_y == editwinrows - 1
+    if (openfile->current_y == editwinrows - 1
 #ifndef NANO_TINY
-	|| scroll_only
+	|| amount > 0 || scroll_only
 #endif
 	) {
+#ifndef NANO_TINY
+	if (amount < 1 || scroll_only)
+	    amount = 1;
+#endif
 	edit_scroll(DOWN_DIR,
 #ifndef NANO_TINY
-		(ISSET(SMOOTH_SCROLL) || scroll_only) ? (amount ? amount : 1) :
+		(ISSET(SMOOTH_SCROLL) || scroll_only) ? amount :
 #endif
 		editwinrows / 2 + 1);
-
-	edit_refresh_needed = TRUE;
-    } else if (amount > 0) {
-	edit_scroll(DOWN_DIR, amount);
 	edit_refresh_needed = TRUE;
     }
     /* If we're above the last line of the edit window, update the line