| /**************************************************************************** |
| * Copyright (c) 1998-2005,2006 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_new * |
| * Create and destroy menu items * |
| * Set and get marker string for menu * |
| ***************************************************************************/ |
| |
| #include "menu.priv.h" |
| |
| #if USE_WIDEC_SUPPORT |
| #if HAVE_WCTYPE_H |
| #include <wctype.h> |
| #endif |
| #endif |
| |
| MODULE_ID("$Id: m_item_new.c,v 1.27 2006/12/17 19:47:09 tom Exp $") |
| |
| /*--------------------------------------------------------------------------- |
| | Facility : libnmenu |
| | Function : bool Is_Printable_String(const char *s) |
| | |
| | Description : Checks whether or not the string contains only printable |
| | characters. |
| | |
| | Return Values : TRUE - if string is printable |
| | FALSE - if string contains non-printable characters |
| +--------------------------------------------------------------------------*/ |
| static bool |
| Is_Printable_String(const char *s) |
| { |
| int result = TRUE; |
| |
| #if USE_WIDEC_SUPPORT |
| int count = mbstowcs(0, s, 0); |
| wchar_t *temp = 0; |
| |
| assert(s); |
| |
| if (count > 0 |
| && (temp = typeCalloc(wchar_t, (2 + (unsigned)count))) != 0) |
| { |
| int n; |
| |
| mbstowcs(temp, s, (unsigned)count); |
| for (n = 0; n < count; ++n) |
| if (!iswprint((wint_t) temp[n])) |
| { |
| result = FALSE; |
| break; |
| } |
| free(temp); |
| } |
| #else |
| assert(s); |
| while (*s) |
| { |
| if (!isprint(UChar(*s))) |
| { |
| result = FALSE; |
| break; |
| } |
| s++; |
| } |
| #endif |
| return result; |
| } |
| |
| /*--------------------------------------------------------------------------- |
| | Facility : libnmenu |
| | Function : ITEM *new_item(char *name, char *description) |
| | |
| | Description : Create a new item with name and description. Return |
| | a pointer to this new item. |
| | N.B.: an item must(!) have a name. |
| | |
| | Return Values : The item pointer or NULL if creation failed. |
| +--------------------------------------------------------------------------*/ |
| NCURSES_EXPORT(ITEM *) |
| new_item(const char *name, const char *description) |
| { |
| ITEM *item; |
| |
| T((T_CALLED("new_item(\"%s\", \"%s\")"), |
| name ? name : "", |
| description ? description : "")); |
| |
| if (!name || (*name == '\0') || !Is_Printable_String(name)) |
| { |
| item = (ITEM *) 0; |
| SET_ERROR(E_BAD_ARGUMENT); |
| } |
| else |
| { |
| item = (ITEM *) calloc(1, sizeof(ITEM)); |
| if (item) |
| { |
| *item = _nc_Default_Item; /* hope we have struct assignment */ |
| |
| item->name.length = strlen(name); |
| item->name.str = name; |
| |
| if (description && (*description != '\0') && |
| Is_Printable_String(description)) |
| { |
| item->description.length = strlen(description); |
| item->description.str = description; |
| } |
| else |
| { |
| item->description.length = 0; |
| item->description.str = (char *)0; |
| } |
| } |
| else |
| SET_ERROR(E_SYSTEM_ERROR); |
| } |
| returnItem(item); |
| } |
| |
| /*--------------------------------------------------------------------------- |
| | Facility : libnmenu |
| | Function : int free_item(ITEM *item) |
| | |
| | Description : Free the allocated storage for this item. |
| | N.B.: a connected item can't be freed. |
| | |
| | Return Values : E_OK - success |
| | E_BAD_ARGUMENT - invalid value has been passed |
| | E_CONNECTED - item is still connected to a menu |
| +--------------------------------------------------------------------------*/ |
| NCURSES_EXPORT(int) |
| free_item(ITEM * item) |
| { |
| T((T_CALLED("free_item(%p)"), item)); |
| |
| if (!item) |
| RETURN(E_BAD_ARGUMENT); |
| |
| if (item->imenu) |
| RETURN(E_CONNECTED); |
| |
| free(item); |
| |
| RETURN(E_OK); |
| } |
| |
| /*--------------------------------------------------------------------------- |
| | Facility : libnmenu |
| | Function : int set_menu_mark( MENU *menu, const char *mark ) |
| | |
| | Description : Set the mark string used to indicate the current |
| | item (single-valued menu) or the selected items |
| | (multi-valued menu). |
| | The mark argument may be NULL, in which case no |
| | marker is used. |
| | This might be a little bit tricky, because this may |
| | affect the geometry of the menu, which we don't allow |
| | if it is already posted. |
| | |
| | Return Values : E_OK - success |
| | E_BAD_ARGUMENT - an invalid value has been passed |
| | E_SYSTEM_ERROR - no memory to store mark |
| +--------------------------------------------------------------------------*/ |
| NCURSES_EXPORT(int) |
| set_menu_mark(MENU * menu, const char *mark) |
| { |
| unsigned l; |
| |
| T((T_CALLED("set_menu_mark(%p,%s)"), menu, _nc_visbuf(mark))); |
| |
| if (mark && (*mark != '\0') && Is_Printable_String(mark)) |
| l = strlen(mark); |
| else |
| l = 0; |
| |
| if (menu) |
| { |
| char *old_mark = menu->mark; |
| unsigned short old_status = menu->status; |
| |
| if (menu->status & _POSTED) |
| { |
| /* If the menu is already posted, the geometry is fixed. Then |
| we can only accept a mark with exactly the same length */ |
| if (menu->marklen != (int)l) |
| RETURN(E_BAD_ARGUMENT); |
| } |
| menu->marklen = l; |
| if (l) |
| { |
| menu->mark = (char *)malloc(l + 1); |
| if (menu->mark) |
| { |
| strcpy(menu->mark, mark); |
| if (menu != &_nc_Default_Menu) |
| menu->status |= _MARK_ALLOCATED; |
| } |
| else |
| { |
| menu->mark = old_mark; |
| RETURN(E_SYSTEM_ERROR); |
| } |
| } |
| else |
| menu->mark = (char *)0; |
| |
| if ((old_status & _MARK_ALLOCATED) && old_mark) |
| free(old_mark); |
| |
| if (menu->status & _POSTED) |
| { |
| _nc_Draw_Menu(menu); |
| _nc_Show_Menu(menu); |
| } |
| else |
| { |
| /* Recalculate the geometry */ |
| _nc_Calculate_Item_Length_and_Width(menu); |
| } |
| } |
| else |
| { |
| returnCode(set_menu_mark(&_nc_Default_Menu, mark)); |
| } |
| RETURN(E_OK); |
| } |
| |
| /*--------------------------------------------------------------------------- |
| | Facility : libnmenu |
| | Function : char *menu_mark(const MENU *menu) |
| | |
| | Description : Return a pointer to the marker string |
| | |
| | Return Values : The marker string pointer or NULL if no marker defined |
| +--------------------------------------------------------------------------*/ |
| NCURSES_EXPORT(const char *) |
| menu_mark(const MENU * menu) |
| { |
| T((T_CALLED("menu_mark(%p)"), menu)); |
| returnPtr(Normalize_Menu(menu)->mark); |
| } |
| |
| /* m_item_new.c */ |
