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-rw-r--r--contrib/ncurses/menu/m_post.c377
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diff --git a/contrib/ncurses/menu/m_post.c b/contrib/ncurses/menu/m_post.c
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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_post *
-* Write or erase menus from associated subwindows *
-***************************************************************************/
-
-#include "menu.priv.h"
-
-MODULE_ID("$Id: m_post.c,v 1.26 2004/12/25 23:57:04 tom Exp $")
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : void _nc_Post_Item(MENU *menu, ITEM *item)
-|
-| Description : Draw the item in the menus window at the current
-| window position
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(void)
-_nc_Post_Item(const MENU * menu, const ITEM * item)
-{
- int i;
- chtype ch;
- int item_x, item_y;
- int count = 0;
- bool isfore = FALSE, isback = FALSE, isgrey = FALSE;
- int name_len;
- int desc_len;
-
- assert(menu->win);
-
- getyx(menu->win, item_y, item_x);
-
- /* We need a marker iff
- - it is a onevalued menu and it is the current item
- - or it has a selection value
- */
- wattron(menu->win, menu->back);
- if (item->value || (item == menu->curitem))
- {
- if (menu->marklen)
- {
- /* In a multi selection menu we use the fore attribute
- for a selected marker that is not the current one.
- This improves visualization of the menu, because now
- always the 'normal' marker denotes the current
- item. */
- if (!(menu->opt & O_ONEVALUE) && item->value && item != menu->curitem)
- {
- wattron(menu->win, menu->fore);
- isfore = TRUE;
- }
- waddstr(menu->win, menu->mark);
- if (isfore)
- {
- wattron(menu->win, menu->fore);
- isfore = FALSE;
- }
- }
- }
- else /* otherwise we have to wipe out the marker area */
- for (ch = ' ', i = menu->marklen; i > 0; i--)
- waddch(menu->win, ch);
- wattroff(menu->win, menu->back);
- count += menu->marklen;
-
- /* First we have to calculate the attribute depending on selectability
- and selection status
- */
- if (!(item->opt & O_SELECTABLE))
- {
- wattron(menu->win, menu->grey);
- isgrey = TRUE;
- }
- else
- {
- if (item->value || item == menu->curitem)
- {
- wattron(menu->win, menu->fore);
- isfore = TRUE;
- }
- else
- {
- wattron(menu->win, menu->back);
- isback = TRUE;
- }
- }
-
- waddnstr(menu->win, item->name.str, item->name.length);
- name_len = _nc_Calculate_Text_Width(&(item->name));
- for (ch = ' ', i = menu->namelen - name_len; i > 0; i--)
- {
- waddch(menu->win, ch);
- }
- count += menu->namelen;
-
- /* Show description if required and available */
- if ((menu->opt & O_SHOWDESC) && menu->desclen > 0)
- {
- int m = menu->spc_desc / 2;
- int cy = -1, cx = -1;
-
- for (ch = ' ', i = 0; i < menu->spc_desc; i++)
- {
- if (i == m)
- {
- waddch(menu->win, menu->pad);
- getyx(menu->win, cy, cx);
- }
- else
- waddch(menu->win, ch);
- }
- if (item->description.length)
- waddnstr(menu->win, item->description.str, item->description.length);
- desc_len = _nc_Calculate_Text_Width(&(item->description));
- for (ch = ' ', i = menu->desclen - desc_len; i > 0; i--)
- {
- waddch(menu->win, ch);
- }
- count += menu->desclen + menu->spc_desc;
-
- if (menu->spc_rows > 1)
- {
- int j, k, ncy, ncx;
-
- assert(cx >= 0 && cy >= 0);
- getyx(menu->win, ncy, ncx);
- if (isgrey)
- wattroff(menu->win, menu->grey);
- else if (isfore)
- wattroff(menu->win, menu->fore);
- wattron(menu->win, menu->back);
- for (j = 1; j < menu->spc_rows; j++)
- {
- if ((item_y + j) < getmaxy(menu->win))
- {
- wmove(menu->win, item_y + j, item_x);
- for (k = 0; k < count; k++)
- waddch(menu->win, ' ');
- }
- if ((cy + j) < getmaxy(menu->win))
- mvwaddch(menu->win, cy + j, cx - 1, menu->pad);
- }
- wmove(menu->win, ncy, ncx);
- if (!isback)
- wattroff(menu->win, menu->back);
- }
- }
-
- /* Remove attributes */
- if (isfore)
- wattroff(menu->win, menu->fore);
- if (isback)
- wattroff(menu->win, menu->back);
- if (isgrey)
- wattroff(menu->win, menu->grey);
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : void _nc_Draw_Menu(const MENU *)
-|
-| Description : Display the menu in its windows
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(void)
-_nc_Draw_Menu(const MENU * menu)
-{
- ITEM *item = menu->items[0];
- ITEM *lasthor, *lastvert;
- ITEM *hitem;
- int y = 0;
- chtype s_bkgd;
-
- assert(item && menu->win);
-
- s_bkgd = getbkgd(menu->win);
- wbkgdset(menu->win, menu->back);
- werase(menu->win);
- wbkgdset(menu->win, s_bkgd);
-
- lastvert = (menu->opt & O_NONCYCLIC) ? (ITEM *) 0 : item;
-
- do
- {
- wmove(menu->win, y, 0);
-
- hitem = item;
- lasthor = (menu->opt & O_NONCYCLIC) ? (ITEM *) 0 : hitem;
-
- do
- {
- _nc_Post_Item(menu, hitem);
-
- wattron(menu->win, menu->back);
- if (((hitem = hitem->right) != lasthor) && hitem)
- {
- int i, j, cy, cx;
- chtype ch = ' ';
-
- getyx(menu->win, cy, cx);
- for (j = 0; j < menu->spc_rows; j++)
- {
- wmove(menu->win, cy + j, cx);
- for (i = 0; i < menu->spc_cols; i++)
- {
- waddch(menu->win, ch);
- }
- }
- wmove(menu->win, cy, cx + menu->spc_cols);
- }
- }
- while (hitem && (hitem != lasthor));
- wattroff(menu->win, menu->back);
-
- item = item->down;
- y += menu->spc_rows;
-
- }
- while (item && (item != lastvert));
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : int post_menu(MENU *)
-|
-| Description : Post a menu to the screen. This makes it visible.
-|
-| Return Values : E_OK - success
-| E_BAD_ARGUMENT - not a valid menu pointer
-| E_SYSTEM_ERROR - error in lower layers
-| E_NOT_CONNECTED - No items connected to menu
-| E_BAD_STATE - Menu in userexit routine
-| E_POSTED - Menu already posted
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(int)
-post_menu(MENU * menu)
-{
- T((T_CALLED("post_menu(%p)"), menu));
-
- if (!menu)
- RETURN(E_BAD_ARGUMENT);
-
- if (menu->status & _IN_DRIVER)
- RETURN(E_BAD_STATE);
-
- if (menu->status & _POSTED)
- RETURN(E_POSTED);
-
- if (menu->items && *(menu->items))
- {
- int y;
- int h = 1 + menu->spc_rows * (menu->rows - 1);
-
- WINDOW *win = Get_Menu_Window(menu);
- int maxy = getmaxy(win);
-
- if ((menu->win = newpad(h, menu->width)))
- {
- y = (maxy >= h) ? h : maxy;
- if (y >= menu->height)
- y = menu->height;
- if (!(menu->sub = subpad(menu->win, y, menu->width, 0, 0)))
- RETURN(E_SYSTEM_ERROR);
- }
- else
- RETURN(E_SYSTEM_ERROR);
-
- if (menu->status & _LINK_NEEDED)
- _nc_Link_Items(menu);
- }
- else
- RETURN(E_NOT_CONNECTED);
-
- menu->status |= _POSTED;
-
- if (!(menu->opt & O_ONEVALUE))
- {
- ITEM **items;
-
- for (items = menu->items; *items; items++)
- {
- (*items)->value = FALSE;
- }
- }
-
- _nc_Draw_Menu(menu);
-
- Call_Hook(menu, menuinit);
- Call_Hook(menu, iteminit);
-
- _nc_Show_Menu(menu);
-
- RETURN(E_OK);
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : int unpost_menu(MENU *)
-|
-| Description : Detach menu from screen
-|
-| Return Values : E_OK - success
-| E_BAD_ARGUMENT - not a valid menu pointer
-| E_BAD_STATE - menu in userexit routine
-| E_NOT_POSTED - menu is not posted
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(int)
-unpost_menu(MENU * menu)
-{
- WINDOW *win;
-
- T((T_CALLED("unpost_menu(%p)"), menu));
-
- if (!menu)
- RETURN(E_BAD_ARGUMENT);
-
- if (menu->status & _IN_DRIVER)
- RETURN(E_BAD_STATE);
-
- if (!(menu->status & _POSTED))
- RETURN(E_NOT_POSTED);
-
- Call_Hook(menu, itemterm);
- Call_Hook(menu, menuterm);
-
- win = Get_Menu_Window(menu);
- werase(win);
- wsyncup(win);
-
- assert(menu->sub);
- delwin(menu->sub);
- menu->sub = (WINDOW *)0;
-
- assert(menu->win);
- delwin(menu->win);
- menu->win = (WINDOW *)0;
-
- menu->status &= ~_POSTED;
-
- RETURN(E_OK);
-}
-
-/* m_post.c ends here */
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