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-rw-r--r--contrib/ncurses/menu/m_global.c596
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diff --git a/contrib/ncurses/menu/m_global.c b/contrib/ncurses/menu/m_global.c
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-/****************************************************************************
- * Copyright (c) 1998-2004,2005 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_global *
-* Globally used internal routines and the default menu and item structures *
-***************************************************************************/
-
-#include "menu.priv.h"
-
-MODULE_ID("$Id: m_global.c,v 1.23 2005/12/31 21:51:52 tom Exp $")
-
-static char mark[] = "-";
-/* *INDENT-OFF* */
-NCURSES_EXPORT_VAR(MENU) _nc_Default_Menu = {
- 16, /* Nr. of chars high */
- 1, /* Nr. of chars wide */
- 16, /* Nr. of items high */
- 1, /* Nr. of items wide */
- 16, /* Nr. of formatted items high */
- 1, /* Nr. of formatted items wide */
- 16, /* Nr. of items high (actual) */
- 0, /* length of widest name */
- 0, /* length of widest description */
- 1, /* length of mark */
- 1, /* length of one item */
- 1, /* Spacing for descriptor */
- 1, /* Spacing for columns */
- 1, /* Spacing for rows */
- (char *)0, /* buffer used to store match chars */
- 0, /* Index into pattern buffer */
- (WINDOW *)0, /* Window containing entire menu */
- (WINDOW *)0, /* Portion of menu displayed */
- (WINDOW *)0, /* User's window */
- (WINDOW *)0, /* User's subwindow */
- (ITEM **)0, /* List of items */
- 0, /* Total Nr. of items in menu */
- (ITEM *)0, /* Current item */
- 0, /* Top row of menu */
- (chtype)A_REVERSE, /* Attribute for selection */
- (chtype)A_NORMAL, /* Attribute for nonselection */
- (chtype)A_UNDERLINE, /* Attribute for inactive */
- ' ', /* Pad character */
- (Menu_Hook)0, /* Menu init */
- (Menu_Hook)0, /* Menu term */
- (Menu_Hook)0, /* Item init */
- (Menu_Hook)0, /* Item term */
- (void *)0, /* userptr */
- mark, /* mark */
- ALL_MENU_OPTS, /* options */
- 0 /* status */
-};
-
-NCURSES_EXPORT_VAR(ITEM) _nc_Default_Item = {
- { (char *)0, 0 }, /* name */
- { (char *)0, 0 }, /* description */
- (MENU *)0, /* Pointer to parent menu */
- (char *)0, /* Userpointer */
- ALL_ITEM_OPTS, /* options */
- 0, /* Item Nr. */
- 0, /* y */
- 0, /* x */
- FALSE, /* value */
- (ITEM *)0, /* left */
- (ITEM *)0, /* right */
- (ITEM *)0, /* up */
- (ITEM *)0 /* down */
- };
-/* *INDENT-ON* */
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : static void ComputeMaximum_NameDesc_Lenths(MENU *menu)
-|
-| Description : Calculates the maximum name and description lengths
-| of the items connected to the menu
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_INLINE static void
-ComputeMaximum_NameDesc_Lengths(MENU * menu)
-{
- unsigned MaximumNameLength = 0;
- unsigned MaximumDescriptionLength = 0;
- ITEM **items;
- unsigned check;
-
- assert(menu && menu->items);
- for (items = menu->items; *items; items++)
- {
- check = _nc_Calculate_Text_Width(&((*items)->name));
- if (check > MaximumNameLength)
- MaximumNameLength = check;
-
- check = _nc_Calculate_Text_Width(&((*items)->description));
- if (check > MaximumDescriptionLength)
- MaximumDescriptionLength = check;
- }
-
- menu->namelen = MaximumNameLength;
- menu->desclen = MaximumDescriptionLength;
- T(("ComputeMaximum_NameDesc_Lengths %d,%d", menu->namelen, menu->desclen));
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : static void ResetConnectionInfo(MENU *, ITEM **)
-|
-| Description : Reset all informations in the menu and the items in
-| the item array that indicates a connection
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_INLINE static void
-ResetConnectionInfo(MENU * menu, ITEM ** items)
-{
- ITEM **item;
-
- assert(menu && items);
- for (item = items; *item; item++)
- {
- (*item)->index = 0;
- (*item)->imenu = (MENU *) 0;
- }
- if (menu->pattern)
- free(menu->pattern);
- menu->pattern = (char *)0;
- menu->pindex = 0;
- menu->items = (ITEM **) 0;
- menu->nitems = 0;
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : bool _nc_Connect_Items(MENU *menu, ITEM **items)
-|
-| Description : Connect the items in the item array to the menu.
-| Decorate all the items with a number and a backward
-| pointer to the menu.
-|
-| Return Values : TRUE - successful connection
-| FALSE - connection failed
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(bool)
-_nc_Connect_Items(MENU * menu, ITEM ** items)
-{
- ITEM **item;
- unsigned int ItemCount = 0;
-
- if (menu && items)
- {
- for (item = items; *item; item++)
- {
- if ((*item)->imenu)
- {
- /* if a item is already connected, reject connection */
- break;
- }
- }
- if (!(*item))
- /* we reached the end, so there was no connected item */
- {
- for (item = items; *item; item++)
- {
- if (menu->opt & O_ONEVALUE)
- {
- (*item)->value = FALSE;
- }
- (*item)->index = ItemCount++;
- (*item)->imenu = menu;
- }
- }
- }
- else
- return (FALSE);
-
- if (ItemCount != 0)
- {
- menu->items = items;
- menu->nitems = ItemCount;
- ComputeMaximum_NameDesc_Lengths(menu);
- if ((menu->pattern = typeMalloc(char, (unsigned)(1 + menu->namelen))))
- {
- Reset_Pattern(menu);
- set_menu_format(menu, menu->frows, menu->fcols);
- menu->curitem = *items;
- menu->toprow = 0;
- return (TRUE);
- }
- }
-
- /* If we fall through to this point, we have to reset all items connection
- and inform about a reject connection */
- ResetConnectionInfo(menu, items);
- return (FALSE);
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : void _nc_Disconnect_Items(MENU *menu)
-|
-| Description : Disconnect the menus item array from the menu
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(void)
-_nc_Disconnect_Items(MENU * menu)
-{
- if (menu && menu->items)
- ResetConnectionInfo(menu, menu->items);
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : int _nc_Calculate_Text_Width(const TEXT * item)
-|
-| Description : Calculate the number of columns for a TEXT.
-|
-| Return Values : the width
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(int)
-_nc_Calculate_Text_Width(const TEXT * item /*FIXME: limit length */ )
-{
-#if USE_WIDEC_SUPPORT
- int result = item->length;
-
- T((T_CALLED("_nc_menu_text_width(%p)"), item));
- if (result != 0 && item->str != 0)
- {
- int count = mbstowcs(0, item->str, 0);
- wchar_t *temp = 0;
-
- if (count > 0
- && (temp = typeMalloc(wchar_t, 2 + count)) != 0)
- {
- int n;
-
- result = 0;
- mbstowcs(temp, item->str, (unsigned)count);
- for (n = 0; n < count; ++n)
- {
- int test = wcwidth(temp[n]);
-
- if (test <= 0)
- test = 1;
- result += test;
- }
- free(temp);
- }
- }
- returnCode(result);
-#else
- return item->length;
-#endif
-}
-
-/*
- * Calculate the actual width of a menu entry for wide-characters.
- */
-#if USE_WIDEC_SUPPORT
-static int
-calculate_actual_width(MENU * menu, bool name)
-{
- int width = 0;
- int check = 0;
- ITEM **items;
-
- assert(menu && menu->items);
-
- if (menu->items != 0)
- {
- for (items = menu->items; *items; items++)
- {
- if (name)
- {
- check = _nc_Calculate_Text_Width(&((*items)->name));
- }
- else
- {
- check = _nc_Calculate_Text_Width(&((*items)->description));
- }
- if (check > width)
- width = check;
- }
- }
- else
- {
- width = (name ? menu->namelen : menu->desclen);
- }
-
- T(("calculate_actual_width %s = %d/%d",
- name ? "name" : "desc",
- width,
- name ? menu->namelen : menu->desclen));
- return width;
-}
-#else
-#define calculate_actual_width(menu, name) (name ? menu->namelen : menu->desclen)
-#endif
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : void _nc_Calculate_Item_Length_and_Width(MENU *menu)
-|
-| Description : Calculate the length of an item and the width of the
-| whole menu.
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(void)
-_nc_Calculate_Item_Length_and_Width(MENU * menu)
-{
- int l;
-
- assert(menu);
-
- menu->height = 1 + menu->spc_rows * (menu->arows - 1);
-
- l = calculate_actual_width(menu, TRUE);
- l += menu->marklen;
-
- if ((menu->opt & O_SHOWDESC) && (menu->desclen > 0))
- {
- l += calculate_actual_width(menu, FALSE);
- l += menu->spc_desc;
- }
-
- menu->itemlen = l;
- l *= menu->cols;
- l += (menu->cols - 1) * menu->spc_cols; /* for the padding between the columns */
- menu->width = l;
-
- T(("_nc_CalculateItem_Length_and_Width columns %d, item %d, width %d",
- menu->cols,
- menu->itemlen,
- menu->width));
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : void _nc_Link_Item(MENU *menu)
-|
-| Description : Statically calculate for every item its four neighbors.
-| This depends on the orientation of the menu. This
-| static approach simplifies navigation in the menu a lot.
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(void)
-_nc_Link_Items(MENU * menu)
-{
- if (menu && menu->items && *(menu->items))
- {
- int i, j;
- ITEM *item;
- int Number_Of_Items = menu->nitems;
- int col = 0, row = 0;
- int Last_in_Row;
- int Last_in_Column;
- bool cycle = (menu->opt & O_NONCYCLIC) ? FALSE : TRUE;
-
- menu->status &= ~_LINK_NEEDED;
-
- if (menu->opt & O_ROWMAJOR)
- {
- int Number_Of_Columns = menu->cols;
-
- for (i = 0; i < Number_Of_Items; i++)
- {
- item = menu->items[i];
-
- Last_in_Row = row * Number_Of_Columns + (Number_Of_Columns - 1);
-
- item->left = (col) ?
- /* if we are not in the leftmost column, we can use the
- predecessor in the items array */
- menu->items[i - 1] :
- (cycle ? menu->items[(Last_in_Row >= Number_Of_Items) ?
- Number_Of_Items - 1 :
- Last_in_Row] :
- (ITEM *) 0);
-
- item->right = ((col < (Number_Of_Columns - 1)) &&
- ((i + 1) < Number_Of_Items)
- )?
- menu->items[i + 1] :
- (cycle ? menu->items[row * Number_Of_Columns] :
- (ITEM *) 0
- );
-
- Last_in_Column = (menu->rows - 1) * Number_Of_Columns + col;
-
- item->up = (row) ? menu->items[i - Number_Of_Columns] :
- (cycle ? menu->items[(Last_in_Column >= Number_Of_Items) ?
- Number_Of_Items - 1 :
- Last_in_Column] :
- (ITEM *) 0);
-
- item->down = ((i + Number_Of_Columns) < Number_Of_Items)
- ?
- menu->items[i + Number_Of_Columns] :
- (cycle ? menu->items[(row + 1) < menu->rows ?
- Number_Of_Items - 1 : col] :
- (ITEM *) 0);
- item->x = col;
- item->y = row;
- if (++col == Number_Of_Columns)
- {
- row++;
- col = 0;
- }
- }
- }
- else
- {
- int Number_Of_Rows = menu->rows;
-
- for (j = 0; j < Number_Of_Items; j++)
- {
- item = menu->items[i = (col * Number_Of_Rows + row)];
-
- Last_in_Column = (menu->cols - 1) * Number_Of_Rows + row;
-
- item->left = (col) ?
- menu->items[i - Number_Of_Rows] :
- (cycle ? (Last_in_Column >= Number_Of_Items) ?
- menu->items[Last_in_Column - Number_Of_Rows] :
- menu->items[Last_in_Column] :
- (ITEM *) 0);
-
- item->right = ((i + Number_Of_Rows) < Number_Of_Items)
- ?
- menu->items[i + Number_Of_Rows] :
- (cycle ? menu->items[row] : (ITEM *) 0);
-
- Last_in_Row = col * Number_Of_Rows + (Number_Of_Rows - 1);
-
- item->up = (row) ?
- menu->items[i - 1] :
- (cycle ?
- menu->items[(Last_in_Row >= Number_Of_Items) ?
- Number_Of_Items - 1 :
- Last_in_Row] :
- (ITEM *) 0);
-
- item->down = (row < (Number_Of_Rows - 1))
- ?
- (menu->items[((i + 1) < Number_Of_Items) ?
- i + 1 :
- (col - 1) * Number_Of_Rows + row + 1]) :
- (cycle ?
- menu->items[col * Number_Of_Rows] :
- (ITEM *) 0
- );
-
- item->x = col;
- item->y = row;
- if ((++row) == Number_Of_Rows)
- {
- col++;
- row = 0;
- }
- }
- }
- }
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : void _nc_Show_Menu(const MENU *menu)
-|
-| Description : Update the window that is associated with the menu
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(void)
-_nc_Show_Menu(const MENU * menu)
-{
- WINDOW *win;
- int maxy, maxx;
-
- assert(menu);
- if ((menu->status & _POSTED) && !(menu->status & _IN_DRIVER))
- {
- /* adjust the internal subwindow to start on the current top */
- assert(menu->sub);
- mvderwin(menu->sub, menu->spc_rows * menu->toprow, 0);
- win = Get_Menu_Window(menu);
-
- maxy = getmaxy(win);
- maxx = getmaxx(win);
-
- if (menu->height < maxy)
- maxy = menu->height;
- if (menu->width < maxx)
- maxx = menu->width;
-
- copywin(menu->sub, win, 0, 0, 0, 0, maxy - 1, maxx - 1, 0);
- pos_menu_cursor(menu);
- }
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnmenu
-| Function : void _nc_New_TopRow_and_CurrentItem(
-| MENU *menu,
-| int new_toprow,
-| ITEM *new_current_item)
-|
-| Description : Redisplay the menu so that the given row becomes the
-| top row and the given item becomes the new current
-| item.
-|
-| Return Values : -
-+--------------------------------------------------------------------------*/
-NCURSES_EXPORT(void)
- _nc_New_TopRow_and_CurrentItem
- (MENU * menu, int new_toprow, ITEM * new_current_item)
-{
- ITEM *cur_item;
- bool mterm_called = FALSE;
- bool iterm_called = FALSE;
-
- assert(menu);
- if (menu->status & _POSTED)
- {
- if (new_current_item != menu->curitem)
- {
- Call_Hook(menu, itemterm);
- iterm_called = TRUE;
- }
- if (new_toprow != menu->toprow)
- {
- Call_Hook(menu, menuterm);
- mterm_called = TRUE;
- }
-
- cur_item = menu->curitem;
- assert(cur_item);
- menu->toprow = new_toprow;
- menu->curitem = new_current_item;
-
- if (mterm_called)
- {
- Call_Hook(menu, menuinit);
- }
- if (iterm_called)
- {
- /* this means, move from the old current_item to the new one... */
- Move_To_Current_Item(menu, cur_item);
- Call_Hook(menu, iteminit);
- }
- if (mterm_called || iterm_called)
- {
- _nc_Show_Menu(menu);
- }
- else
- pos_menu_cursor(menu);
- }
- else
- { /* if we are not posted, this is quite simple */
- menu->toprow = new_toprow;
- menu->curitem = new_current_item;
- }
-}
-
-/* m_global.c ends here */
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