Removed draw_double_box() function.

Since S-Lang library actually doesn't provide double boxes drawing,
the draw_box() function is used always.

src/dialog.c

@@ -80,17 +80,6 @@ draw_box (Dlg_head *h, int y, int x, int ys, int xs)
 	tty_draw_box (h->y + y, h->x + x, ys, xs);
 }
 
-/* draw box in window */
-void
-draw_double_box (Dlg_head *h, int y, int x, int ys, int xs)
-{
-#ifndef HAVE_SLANG
-    draw_box (h, y, x, ys, xs);
-#else
-    SLsmg_draw_double_box (h->y + y, h->x + x, ys, xs);
-#endif /* HAVE_SLANG */
-}
-
 void
 widget_erase (Widget *w)
 {

src/dialog.h

@@ -145,9 +145,6 @@ struct Widget {
 /* draw box in window */
 void draw_box (Dlg_head *h, int y, int x, int ys, int xs);
 
-/* doubled line if possible */
-void draw_double_box (Dlg_head *h, int y, int x, int ys, int xs);
-
 /* Flags for create_dlg: */
 #define DLG_REVERSE	(1 << 5) /* Tab order is opposite to the add order */
 #define DLG_WANT_TAB	(1 << 4) /* Should the tab key be sent to the dialog? */

src/info.c

@@ -58,8 +58,8 @@ static void info_box (Dlg_head *h, struct WInfo *info)
     tty_set_normal_attrs ();
     tty_setcolor (NORMAL_COLOR);
     widget_erase (&info->widget);
-    draw_double_box (h, info->widget.y,  info->widget.x,
-	             info->widget.lines, info->widget.cols);
+    draw_box (h, info->widget.y,  info->widget.x,
+	         info->widget.lines, info->widget.cols);
 }
 
 static void

src/screen.c

@@ -788,9 +788,9 @@ static void
 show_dir (WPanel *panel)
 {
     set_colors (panel);
-    draw_double_box (panel->widget.parent,
-		     panel->widget.y, panel->widget.x,
-		     panel->widget.lines, panel->widget.cols);
+    draw_box (panel->widget.parent,
+		 panel->widget.y, panel->widget.x,
+		 panel->widget.lines, panel->widget.cols);
 
     if (show_mini_info && !slow_terminal) {
 	widget_move (&panel->widget, llines (panel) + 2, 0);

src/tree.c

@@ -966,8 +966,8 @@ tree_frame (Dlg_head *h, WTree *tree)
     tty_setcolor (NORMAL_COLOR);
     widget_erase ((Widget*) tree);
     if (tree->is_panel) {
-	draw_double_box (h, tree->widget.y, tree->widget.x, tree->widget.lines,
-		         tree->widget.cols);
+	draw_box (h, tree->widget.y, tree->widget.x, tree->widget.lines,
+		     tree->widget.cols);
 
 	if (show_mini_info)
 	    tty_draw_hline (tree->widget.y + tlines (tree) + 1,

src/tty/tty-slang.h

@@ -34,6 +34,4 @@ int getch (void);
 #define COLS		SLtt_Screen_Cols
 #define LINES		SLtt_Screen_Rows
 
-#define SLsmg_draw_double_box(r, c, dr, dc)	SLsmg_draw_box ((r), (c), (dr), (dc))
-
 #endif				/* MC_TTY_SLANG_H */

src/view.c

@@ -2194,9 +2194,9 @@ view_display_clean (WView *view)
     tty_setcolor (NORMAL_COLOR);
     widget_erase ((Widget *) view);
     if (view->dpy_frame_size != 0) {
-	draw_double_box (view->widget.parent, view->widget.y,
-			 view->widget.x, view->widget.lines,
-			 view->widget.cols);
+	draw_box (view->widget.parent, view->widget.y,
+		    view->widget.x, view->widget.lines,
+		    view->widget.cols);
     }
 }