aboutsummaryrefslogtreecommitdiff
path: root/menu/m_item_top.c
diff options
context:
space:
mode:
Diffstat (limited to 'menu/m_item_top.c')
-rw-r--r--menu/m_item_top.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/menu/m_item_top.c b/menu/m_item_top.c
new file mode 100644
index 000000000000..7268a0e49f15
--- /dev/null
+++ b/menu/m_item_top.c
@@ -0,0 +1,107 @@
+/****************************************************************************
+ * Copyright (c) 1998-2003,2004 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 *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Juergen Pfeifer, 1995,1997 *
+ ****************************************************************************/
+
+/***************************************************************************
+* Module m_item_top *
+* Set and get top menus item *
+***************************************************************************/
+
+#include "menu.priv.h"
+
+MODULE_ID("$Id: m_item_top.c,v 1.10 2004/12/11 23:29:34 tom Exp $")
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : int set_top_row(MENU *menu, int row)
+|
+| Description : Makes the specified row the top row in the menu
+|
+| Return Values : E_OK - success
+| E_BAD_ARGUMENT - not a menu pointer or invalid row
+| E_NOT_CONNECTED - there are no items for the menu
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(int)
+set_top_row(MENU * menu, int row)
+{
+ ITEM *item;
+
+ T((T_CALLED("set_top_row(%p,%d)"), menu, row));
+
+ if (menu)
+ {
+ if (menu->status & _IN_DRIVER)
+ RETURN(E_BAD_STATE);
+ if (menu->items == (ITEM **) 0)
+ RETURN(E_NOT_CONNECTED);
+
+ if ((row < 0) || (row > (menu->rows - menu->arows)))
+ RETURN(E_BAD_ARGUMENT);
+ }
+ else
+ RETURN(E_BAD_ARGUMENT);
+
+ if (row != menu->toprow)
+ {
+ if (menu->status & _LINK_NEEDED)
+ _nc_Link_Items(menu);
+
+ item = menu->items[(menu->opt & O_ROWMAJOR) ? (row * menu->cols) : row];
+ assert(menu->pattern);
+ Reset_Pattern(menu);
+ _nc_New_TopRow_and_CurrentItem(menu, row, item);
+ }
+
+ RETURN(E_OK);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : int top_row(const MENU *)
+|
+| Description : Return the top row of the menu
+|
+| Return Values : The row number or ERR if there is no row
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(int)
+top_row(const MENU * menu)
+{
+ T((T_CALLED("top_row(%p)"), menu));
+ if (menu && menu->items && *(menu->items))
+ {
+ assert((menu->toprow >= 0) && (menu->toprow < menu->rows));
+ returnCode(menu->toprow);
+ }
+ else
+ returnCode(ERR);
+}
+
+/* m_item_top.c ends here */