ncurses 6.1 - patch 20181125

[ncurses.git] / menu / m_cursor.c

diff --git a/menu/m_cursor.c b/menu/m_cursor.c
index ca08f5e3331df91ac02ca6780f12d4c105d892fe..9891de4a9450399b6d22c45fa63a5016d5dce991 100644 (file)
--- a/menu/m_cursor.c
+++ b/menu/m_cursor.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -27,63 +27,86 @@
  ****************************************************************************/
 
 /****************************************************************************
- *   Author: Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> 1995,1997        *
+ *   Author:  Juergen Pfeifer, 1995,1997                                    *
  ****************************************************************************/
 
 /***************************************************************************
 * Module m_cursor                                                          *
-* Correctly position a menus cursor                                        *
+* Correctly position a menu's cursor                                       *
 ***************************************************************************/
 
 #include "menu.priv.h"
 
-MODULE_ID("$Id: m_cursor.c,v 1.9 1998/02/11 12:13:50 tom Exp $")
+MODULE_ID("$Id: m_cursor.c,v 1.22 2010/01/23 21:20:10 tom Exp $")
 
 /*---------------------------------------------------------------------------
-|   Facility      :  libnmenu  
-|   Function      :  pos_menu_cursor  
-|   
-|   Description   :  Position logical cursor to current item in menu
+|   Facility      :  libnmenu
+|   Function      :  _nc_menu_cursor_pos
+|
+|   Description   :  Return position of logical cursor to current item
 |
 |   Return Values :  E_OK            - success
 |                    E_BAD_ARGUMENT  - invalid menu
 |                    E_NOT_POSTED    - Menu is not posted
 +--------------------------------------------------------------------------*/
-int pos_menu_cursor(const MENU * menu)
+NCURSES_EXPORT(int)
+_nc_menu_cursor_pos(const MENU * menu, const ITEM * item, int *pY, int *pX)
 {
-  if (!menu)
-    RETURN(E_BAD_ARGUMENT);
+  if (!menu || !pX || !pY)
+    return (E_BAD_ARGUMENT);
   else
     {
-      ITEM *item;
-      int x, y;
-      WINDOW *win, *sub;
-      
-      if ( !( menu->status & _POSTED ) )
-       RETURN(E_NOT_POSTED);
-      
-      item = menu->curitem;
-      assert(item);
-      
-      x = item->x * (menu->spc_cols + menu->itemlen);
-      y = (item->y - menu->toprow) * menu->spc_rows;
-      win = menu->userwin ? menu->userwin : stdscr;
+      if ((ITEM *) 0 == item)
+       item = menu->curitem;
+      assert(item != (ITEM *) 0);
+
+      if (!(menu->status & _POSTED))
+       return (E_NOT_POSTED);
+
+      *pX = item->x * (menu->spc_cols + menu->itemlen);
+      *pY = (item->y - menu->toprow) * menu->spc_rows;
+    }
+  return (E_OK);
+}
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnmenu
+|   Function      :  pos_menu_cursor
+|
+|   Description   :  Position logical cursor to current item in menu
+|
+|   Return Values :  E_OK            - success
+|                    E_BAD_ARGUMENT  - invalid menu
+|                    E_NOT_POSTED    - Menu is not posted
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(int)
+pos_menu_cursor(const MENU * menu)
+{
+  WINDOW *win, *sub;
+  int x = 0, y = 0;
+  int err = _nc_menu_cursor_pos(menu, (ITEM *) 0, &y, &x);
+
+  T((T_CALLED("pos_menu_cursor(%p)"), (const void *)menu));
+
+  if (E_OK == err)
+    {
+      win = Get_Menu_UserWin(menu);
       sub = menu->usersub ? menu->usersub : win;
       assert(win && sub);
-      
+
       if ((menu->opt & O_SHOWMATCH) && (menu->pindex > 0))
-       x += ( menu->pindex + menu->marklen - 1);
-      
-      wmove(sub,y,x);
-      
-      if ( win != sub )
+       x += (menu->pindex + menu->marklen - 1);
+
+      wmove(sub, y, x);
+
+      if (win != sub)
        {
          wcursyncup(sub);
          wsyncup(sub);
          untouchwin(sub);
-       } 
+       }
     }
-  RETURN(E_OK);
+  RETURN(err);
 }
 
 /* m_cursor.c ends here */