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| Current File : //usr/src/contrib/ncurses/menu/m_attribs.c |
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/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_attribs *
* Control menus display attributes *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_attribs.c,v 1.14 2004/12/11 23:29:12 tom Exp $")
/* Macro to redraw menu if it is posted and changed */
#define Refresh_Menu(menu) \
if ( (menu) && ((menu)->status & _POSTED) )\
{\
_nc_Draw_Menu( menu );\
_nc_Show_Menu( menu );\
}
/* "Template" macro to generate a function to set a menus attribute */
#define GEN_MENU_ATTR_SET_FCT( name ) \
NCURSES_IMPEXP int NCURSES_API set_menu_ ## name (MENU * menu, chtype attr)\
{\
T((T_CALLED("set_menu_" #name "(%p,%s)"), menu, _traceattr(attr)));\
if (!(attr==A_NORMAL || (attr & A_ATTRIBUTES)==attr))\
RETURN(E_BAD_ARGUMENT);\
if (menu && ( menu -> name != attr))\
{\
(menu -> name) = attr;\
Refresh_Menu(menu);\
}\
Normalize_Menu( menu ) -> name = attr;\
RETURN(E_OK);\
}
/* "Template" macro to generate a function to get a menu's attribute */
#define GEN_MENU_ATTR_GET_FCT( name ) \
NCURSES_IMPEXP chtype NCURSES_API menu_ ## name (const MENU * menu)\
{\
T((T_CALLED("menu_" #name "(%p)"), menu));\
returnAttr(Normalize_Menu( menu ) -> name);\
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_fore(MENU *menu, chtype attr)
|
| Description : Set the attribute for selectable items. In single-
| valued menus this is used to highlight the current
| item ((i.e. where the cursor is), in multi-valued
| menus this is used to highlight the selected items.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - an invalid value has been passed
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_SET_FCT(fore)
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : chtype menu_fore(const MENU* menu)
|
| Description : Return the attribute used for selectable items that
| are current (single-valued menu) or selected (multi-
| valued menu).
|
| Return Values : Attribute value
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_GET_FCT(fore)
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_back(MENU *menu, chtype attr)
|
| Description : Set the attribute for selectable but not yet selected
| items.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - an invalid value has been passed
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_SET_FCT(back)
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : chtype menu_back(const MENU *menu)
|
| Description : Return the attribute used for selectable but not yet
| selected items.
|
| Return Values : Attribute value
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_GET_FCT(back)
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_grey(MENU *menu, chtype attr)
|
| Description : Set the attribute for unselectable items.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - an invalid value has been passed
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_SET_FCT(grey)
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : chtype menu_grey(const MENU *menu)
|
| Description : Return the attribute used for non-selectable items
|
| Return Values : Attribute value
+--------------------------------------------------------------------------*/
GEN_MENU_ATTR_GET_FCT(grey)
/* m_attribs.c ends here */