Base version of ncurses-5.7 library
diff --git a/menu/m_post.c b/menu/m_post.c
new file mode 100644
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+++ b/menu/m_post.c
@@ -0,0 +1,377 @@
+/****************************************************************************
+ * 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 */