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28
29/****************************************************************************
30 *   Author:  Juergen Pfeifer, 1995,1997                                    *
31 ****************************************************************************/
32
33/***************************************************************************
34* Module m_item_opt                                                        *
35* Menus item option routines                                               *
36***************************************************************************/
37
38#include "menu.priv.h"
39
40MODULE_ID("$Id: m_item_opt.c,v 1.18 2010/01/23 21:20:10 tom Exp $")
41
42/*---------------------------------------------------------------------------
43|   Facility      :  libnmenu
44|   Function      :  int set_item_opts(ITEM *item, Item_Options opts)
45|
46|   Description   :  Set the options of the item. If there are relevant
47|                    changes, the item is connected and the menu is posted,
48|                    the menu will be redisplayed.
49|
50|   Return Values :  E_OK            - success
51|                    E_BAD_ARGUMENT  - invalid item options
52+--------------------------------------------------------------------------*/
53NCURSES_EXPORT(int)
54set_item_opts(ITEM * item, Item_Options opts)
55{
56  T((T_CALLED("set_menu_opts(%p,%d)"), (void *)item, opts));
57
58  opts &= ALL_ITEM_OPTS;
59
60  if (opts & ~ALL_ITEM_OPTS)
61    RETURN(E_BAD_ARGUMENT);
62
63  if (item)
64    {
65      if (item->opt != opts)
66	{
67	  MENU *menu = item->imenu;
68
69	  item->opt = opts;
70
71	  if ((!(opts & O_SELECTABLE)) && item->value)
72	    item->value = FALSE;
73
74	  if (menu && (menu->status & _POSTED))
75	    {
76	      Move_And_Post_Item(menu, item);
77	      _nc_Show_Menu(menu);
78	    }
79	}
80    }
81  else
82    _nc_Default_Item.opt = opts;
83
84  RETURN(E_OK);
85}
86
87/*---------------------------------------------------------------------------
88|   Facility      :  libnmenu
89|   Function      :  int item_opts_off(ITEM *item, Item_Options opts)
90|
91|   Description   :  Switch of the options for this item.
92|
93|   Return Values :  E_OK            - success
94|                    E_BAD_ARGUMENT  - invalid options
95+--------------------------------------------------------------------------*/
96NCURSES_EXPORT(int)
97item_opts_off(ITEM * item, Item_Options opts)
98{
99  ITEM *citem = item;		/* use a copy because set_item_opts must detect
100
101				   NULL item itself to adjust its behavior */
102
103  T((T_CALLED("item_opts_off(%p,%d)"), (void *)item, opts));
104
105  if (opts & ~ALL_ITEM_OPTS)
106    RETURN(E_BAD_ARGUMENT);
107  else
108    {
109      Normalize_Item(citem);
110      opts = citem->opt & ~(opts & ALL_ITEM_OPTS);
111      returnCode(set_item_opts(item, opts));
112    }
113}
114
115/*---------------------------------------------------------------------------
116|   Facility      :  libnmenu
117|   Function      :  int item_opts_on(ITEM *item, Item_Options opts)
118|
119|   Description   :  Switch on the options for this item.
120|
121|   Return Values :  E_OK            - success
122|                    E_BAD_ARGUMENT  - invalid options
123+--------------------------------------------------------------------------*/
124NCURSES_EXPORT(int)
125item_opts_on(ITEM * item, Item_Options opts)
126{
127  ITEM *citem = item;		/* use a copy because set_item_opts must detect
128
129				   NULL item itself to adjust its behavior */
130
131  T((T_CALLED("item_opts_on(%p,%d)"), (void *)item, opts));
132
133  opts &= ALL_ITEM_OPTS;
134  if (opts & ~ALL_ITEM_OPTS)
135    RETURN(E_BAD_ARGUMENT);
136  else
137    {
138      Normalize_Item(citem);
139      opts = citem->opt | opts;
140      returnCode(set_item_opts(item, opts));
141    }
142}
143
144/*---------------------------------------------------------------------------
145|   Facility      :  libnmenu
146|   Function      :  Item_Options item_opts(const ITEM *item)
147|
148|   Description   :  Switch of the options for this item.
149|
150|   Return Values :  Items options
151+--------------------------------------------------------------------------*/
152NCURSES_EXPORT(Item_Options)
153item_opts(const ITEM * item)
154{
155  T((T_CALLED("item_opts(%p)"), (const void *)item));
156  returnItemOpts(ALL_ITEM_OPTS & Normalize_Item(item)->opt);
157}
158
159/* m_item_opt.c ends here */
160