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+/****************************************************************************
+ * 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_format *
+* Set and get maximum numbers of rows and columns in menus *
+***************************************************************************/
+
+#include "menu.priv.h"
+
+MODULE_ID("$Id: m_format.c,v 1.15 2004/12/11 23:11:21 tom Exp $")
+
+#define minimum(a,b) ((a)<(b) ? (a): (b))
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : int set_menu_format(MENU *menu, int rows, int cols)
+|
+| Description : Sets the maximum number of rows and columns of items
+| that may be displayed at one time on a menu. If the
+| menu contains more items than can be displayed at
+| once, the menu will be scrollable.
+|
+| Return Values : E_OK - success
+| E_BAD_ARGUMENT - invalid values passed
+| E_NOT_CONNECTED - there are no items connected
+| E_POSTED - the menu is already posted
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(int)
+set_menu_format(MENU * menu, int rows, int cols)
+{
+ int total_rows, total_cols;
+
+ T((T_CALLED("set_menu_format(%p,%d,%d)"), menu, rows, cols));
+
+ if (rows < 0 || cols < 0)
+ RETURN(E_BAD_ARGUMENT);
+
+ if (menu)
+ {
+ if (menu->status & _POSTED)
+ RETURN(E_POSTED);
+
+ if (!(menu->items))
+ RETURN(E_NOT_CONNECTED);
+
+ if (rows == 0)
+ rows = menu->frows;
+ if (cols == 0)
+ cols = menu->fcols;
+
+ if (menu->pattern)
+ Reset_Pattern(menu);
+
+ menu->frows = rows;
+ menu->fcols = cols;
+
+ assert(rows > 0 && cols > 0);
+ total_rows = (menu->nitems - 1) / cols + 1;
+ total_cols = (menu->opt & O_ROWMAJOR) ?
+ minimum(menu->nitems, cols) :
+ (menu->nitems - 1) / total_rows + 1;
+
+ menu->rows = total_rows;
+ menu->cols = total_cols;
+ menu->arows = minimum(total_rows, rows);
+ menu->toprow = 0;
+ menu->curitem = *(menu->items);
+ assert(menu->curitem);
+ menu->status |= _LINK_NEEDED;
+ _nc_Calculate_Item_Length_and_Width(menu);
+ }
+ else
+ {
+ if (rows > 0)
+ _nc_Default_Menu.frows = rows;
+ if (cols > 0)
+ _nc_Default_Menu.fcols = cols;
+ }
+
+ RETURN(E_OK);
+}
+
+/*---------------------------------------------------------------------------
+| Facility : libnmenu
+| Function : void menu_format(const MENU *menu, int *rows, int *cols)
+|
+| Description : Returns the maximum number of rows and columns that may
+| be displayed at one time on menu.
+|
+| Return Values : -
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(void)
+menu_format(const MENU * menu, int *rows, int *cols)
+{
+ if (rows)
+ *rows = Normalize_Menu(menu)->frows;
+ if (cols)
+ *cols = Normalize_Menu(menu)->fcols;
+}
+
+/* m_format.c ends here */