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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libmenu/m_global.c	Lines:	0	157	0.0 %
Date:	2017-11-13	Branches:	0	150	0.0 %


/* $OpenBSD: m_global.c,v 1.8 2010/01/12 23:22:07 nicm Exp $ */

/****************************************************************************
 * 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 1.8 2010/01/12 23:22:07 nicm 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 */


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: m_global.c,v 1.8 2010/01/12 23:22:07 nicm Exp $ */
2
3			/****************************************************************************
4			* Copyright (c) 1998-2004,2005 Free Software Foundation, Inc. *
5			* *
6			* Permission is hereby granted, free of charge, to any person obtaining a *
7			* copy of this software and associated documentation files (the *
8			* "Software"), to deal in the Software without restriction, including *
9			* without limitation the rights to use, copy, modify, merge, publish, *
10			* distribute, distribute with modifications, sublicense, and/or sell *
11			* copies of the Software, and to permit persons to whom the Software is *
12			* furnished to do so, subject to the following conditions: *
13			* *
14			* The above copyright notice and this permission notice shall be included *
15			* in all copies or substantial portions of the Software. *
16			* *
17			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18			* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19			* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20			* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21			* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22			* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23			* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24			* *
25			* Except as contained in this notice, the name(s) of the above copyright *
26			* holders shall not be used in advertising or otherwise to promote the *
27			* sale, use or other dealings in this Software without prior written *
28			* authorization. *
29			****************************************************************************/
30
31			/****************************************************************************
32			* Author: Juergen Pfeifer, 1995,1997 *
33			****************************************************************************/
34
35			/***************************************************************************
36			* Module m_global *
37			* Globally used internal routines and the default menu and item structures *
38			***************************************************************************/
39
40			#include "menu.priv.h"
41
42			MODULE_ID("$Id: m_global.c,v 1.8 2010/01/12 23:22:07 nicm Exp $")
43
44			static char mark[] = "-";
45			/* INDENT-OFF */
46			NCURSES_EXPORT_VAR(MENU) _nc_Default_Menu = {
47			16, /* Nr. of chars high */
48			1, /* Nr. of chars wide */
49			16, /* Nr. of items high */
50			1, /* Nr. of items wide */
51			16, /* Nr. of formatted items high */
52			1, /* Nr. of formatted items wide */
53			16, /* Nr. of items high (actual) */
54			0, /* length of widest name */
55			0, /* length of widest description */
56			1, /* length of mark */
57			1, /* length of one item */
58			1, /* Spacing for descriptor */
59			1, /* Spacing for columns */
60			1, /* Spacing for rows */
61			(char )0, / buffer used to store match chars */
62			0, /* Index into pattern buffer */
63			(WINDOW )0, / Window containing entire menu */
64			(WINDOW )0, / Portion of menu displayed */
65			(WINDOW )0, / User's window */
66			(WINDOW )0, / User's subwindow */
67			(ITEM *)0, / List of items */
68			0, /* Total Nr. of items in menu */
69			(ITEM )0, / Current item */
70			0, /* Top row of menu */
71			(chtype)A_REVERSE, /* Attribute for selection */
72			(chtype)A_NORMAL, /* Attribute for nonselection */
73			(chtype)A_UNDERLINE, /* Attribute for inactive */
74			' ', /* Pad character */
75			(Menu_Hook)0, /* Menu init */
76			(Menu_Hook)0, /* Menu term */
77			(Menu_Hook)0, /* Item init */
78			(Menu_Hook)0, /* Item term */
79			(void )0, / userptr */
80			mark, /* mark */
81			ALL_MENU_OPTS, /* options */
82			0 /* status */
83			};
84
85			NCURSES_EXPORT_VAR(ITEM) _nc_Default_Item = {
86			{ (char )0, 0 }, / name */
87			{ (char )0, 0 }, / description */
88			(MENU )0, / Pointer to parent menu */
89			(char )0, / Userpointer */
90			ALL_ITEM_OPTS, /* options */
91			0, /* Item Nr. */
92			0, /* y */
93			0, /* x */
94			FALSE, /* value */
95			(ITEM )0, / left */
96			(ITEM )0, / right */
97			(ITEM )0, / up */
98			(ITEM )0 / down */
99			};
100			/* INDENT-ON */
101
102			/*---------------------------------------------------------------------------
103			\| Facility : libnmenu
104			\| Function : static void ComputeMaximum_NameDesc_Lenths(MENU *menu)
105			\|
106			\| Description : Calculates the maximum name and description lengths
107			\| of the items connected to the menu
108			\|
109			\| Return Values : -
110			+--------------------------------------------------------------------------*/
111			NCURSES_INLINE static void
112			ComputeMaximum_NameDesc_Lengths(MENU * menu)
113			{
114			unsigned MaximumNameLength = 0;
115			unsigned MaximumDescriptionLength = 0;
116			ITEM **items;
117			unsigned check;
118
119			assert(menu && menu->items);
120			for (items = menu->items; *items; items++)
121			{
122			check = _nc_Calculate_Text_Width(&((*items)->name));
123			if (check > MaximumNameLength)
124			MaximumNameLength = check;
125
126			check = _nc_Calculate_Text_Width(&((*items)->description));
127			if (check > MaximumDescriptionLength)
128			MaximumDescriptionLength = check;
129			}
130
131			menu->namelen = MaximumNameLength;
132			menu->desclen = MaximumDescriptionLength;
133			T(("ComputeMaximum_NameDesc_Lengths %d,%d", menu->namelen, menu->desclen));
134			}
135
136			/*---------------------------------------------------------------------------
137			\| Facility : libnmenu
138			\| Function : static void ResetConnectionInfo(MENU , ITEM *)
139			\|
140			\| Description : Reset all informations in the menu and the items in
141			\| the item array that indicates a connection
142			\|
143			\| Return Values : -
144			+--------------------------------------------------------------------------*/
145			NCURSES_INLINE static void
146			ResetConnectionInfo(MENU * menu, ITEM ** items)
147			{
148			ITEM **item;
149
150			assert(menu && items);
151			for (item = items; *item; item++)
152			{
153			(*item)->index = 0;
154			(item)->imenu = (MENU ) 0;
155			}
156			if (menu->pattern)
157			free(menu->pattern);
158			menu->pattern = (char *)0;
159			menu->pindex = 0;
160			menu->items = (ITEM **) 0;
161			menu->nitems = 0;
162			}
163
164			/*---------------------------------------------------------------------------
165			\| Facility : libnmenu
166			\| Function : bool _nc_Connect_Items(MENU menu, ITEM *items)
167			\|
168			\| Description : Connect the items in the item array to the menu.
169			\| Decorate all the items with a number and a backward
170			\| pointer to the menu.
171			\|
172			\| Return Values : TRUE - successful connection
173			\| FALSE - connection failed
174			+--------------------------------------------------------------------------*/
175			NCURSES_EXPORT(bool)
176			_nc_Connect_Items(MENU * menu, ITEM ** items)
177			{
178			ITEM **item;
179			unsigned int ItemCount = 0;
180
181			if (menu && items)
182			{
183			for (item = items; *item; item++)
184			{
185			if ((*item)->imenu)
186			{
187			/* if a item is already connected, reject connection */
188			break;
189			}
190			}
191			if (!(*item))
192			/* we reached the end, so there was no connected item */
193			{
194			for (item = items; *item; item++)
195			{
196			if (menu->opt & O_ONEVALUE)
197			{
198			(*item)->value = FALSE;
199			}
200			(*item)->index = ItemCount++;
201			(*item)->imenu = menu;
202			}
203			}
204			}
205			else
206			return (FALSE);
207
208			if (ItemCount != 0)
209			{
210			menu->items = items;
211			menu->nitems = ItemCount;
212			ComputeMaximum_NameDesc_Lengths(menu);
213			if ((menu->pattern = typeMalloc(char, (unsigned)(1 + menu->namelen))))
214			{
215			Reset_Pattern(menu);
216			set_menu_format(menu, menu->frows, menu->fcols);
217			menu->curitem = *items;
218			menu->toprow = 0;
219			return (TRUE);
220			}
221			}
222
223			/* If we fall through to this point, we have to reset all items connection
224			and inform about a reject connection */
225			ResetConnectionInfo(menu, items);
226			return (FALSE);
227			}
228
229			/*---------------------------------------------------------------------------
230			\| Facility : libnmenu
231			\| Function : void _nc_Disconnect_Items(MENU *menu)
232			\|
233			\| Description : Disconnect the menus item array from the menu
234			\|
235			\| Return Values : -
236			+--------------------------------------------------------------------------*/
237			NCURSES_EXPORT(void)
238			_nc_Disconnect_Items(MENU * menu)
239			{
240			if (menu && menu->items)
241			ResetConnectionInfo(menu, menu->items);
242			}
243
244			/*---------------------------------------------------------------------------
245			\| Facility : libnmenu
246			\| Function : int _nc_Calculate_Text_Width(const TEXT * item)
247			\|
248			\| Description : Calculate the number of columns for a TEXT.
249			\|
250			\| Return Values : the width
251			+--------------------------------------------------------------------------*/
252			NCURSES_EXPORT(int)
253			_nc_Calculate_Text_Width(const TEXT * item /FIXME: limit length / )
254			{
255			#if USE_WIDEC_SUPPORT
256			int result = item->length;
257
258			T((T_CALLED("_nc_menu_text_width(%p)"), item));
259			if (result != 0 && item->str != 0)
260			{
261			int count = mbstowcs(0, item->str, 0);
262			wchar_t *temp = 0;
263
264			if (count > 0
265			&& (temp = typeMalloc(wchar_t, 2 + count)) != 0)
266			{
267			int n;
268
269			result = 0;
270			mbstowcs(temp, item->str, (unsigned)count);
271			for (n = 0; n < count; ++n)
272			{
273			int test = wcwidth(temp[n]);
274
275			if (test <= 0)
276			test = 1;
277			result += test;
278			}
279			free(temp);
280			}
281			}
282			returnCode(result);
283			#else
284			return item->length;
285			#endif
286			}
287
288			/*
289			* Calculate the actual width of a menu entry for wide-characters.
290			*/
291			#if USE_WIDEC_SUPPORT
292			static int
293			calculate_actual_width(MENU * menu, bool name)
294			{
295			int width = 0;
296			int check = 0;
297			ITEM **items;
298
299			assert(menu && menu->items);
300
301			if (menu->items != 0)
302			{
303			for (items = menu->items; *items; items++)
304			{
305			if (name)
306			{
307			check = _nc_Calculate_Text_Width(&((*items)->name));
308			}
309			else
310			{
311			check = _nc_Calculate_Text_Width(&((*items)->description));
312			}
313			if (check > width)
314			width = check;
315			}
316			}
317			else
318			{
319			width = (name ? menu->namelen : menu->desclen);
320			}
321
322			T(("calculate_actual_width %s = %d/%d",
323			name ? "name" : "desc",
324			width,
325			name ? menu->namelen : menu->desclen));
326			return width;
327			}
328			#else
329			#define calculate_actual_width(menu, name) (name ? menu->namelen : menu->desclen)
330			#endif
331
332			/*---------------------------------------------------------------------------
333			\| Facility : libnmenu
334			\| Function : void _nc_Calculate_Item_Length_and_Width(MENU *menu)
335			\|
336			\| Description : Calculate the length of an item and the width of the
337			\| whole menu.
338			\|
339			\| Return Values : -
340			+--------------------------------------------------------------------------*/
341			NCURSES_EXPORT(void)
342			_nc_Calculate_Item_Length_and_Width(MENU * menu)
343			{
344			int l;
345
346			assert(menu);
347
348			menu->height = 1 + menu->spc_rows * (menu->arows - 1);
349
350			l = calculate_actual_width(menu, TRUE);
351			l += menu->marklen;
352
353			if ((menu->opt & O_SHOWDESC) && (menu->desclen > 0))
354			{
355			l += calculate_actual_width(menu, FALSE);
356			l += menu->spc_desc;
357			}
358
359			menu->itemlen = l;
360			l *= menu->cols;
361			l += (menu->cols - 1) * menu->spc_cols; /* for the padding between the columns */
362			menu->width = l;
363
364			T(("_nc_CalculateItem_Length_and_Width columns %d, item %d, width %d",
365			menu->cols,
366			menu->itemlen,
367			menu->width));
368			}
369
370			/*---------------------------------------------------------------------------
371			\| Facility : libnmenu
372			\| Function : void _nc_Link_Item(MENU *menu)
373			\|
374			\| Description : Statically calculate for every item its four neighbors.
375			\| This depends on the orientation of the menu. This
376			\| static approach simplifies navigation in the menu a lot.
377			\|
378			\| Return Values : -
379			+--------------------------------------------------------------------------*/
380			NCURSES_EXPORT(void)
381			_nc_Link_Items(MENU * menu)
382			{
383			if (menu && menu->items && *(menu->items))
384			{
385			int i, j;
386			ITEM *item;
387			int Number_Of_Items = menu->nitems;
388			int col = 0, row = 0;
389			int Last_in_Row;
390			int Last_in_Column;
391			bool cycle = (menu->opt & O_NONCYCLIC) ? FALSE : TRUE;
392
393			menu->status &= ~_LINK_NEEDED;
394
395			if (menu->opt & O_ROWMAJOR)
396			{
397			int Number_Of_Columns = menu->cols;
398
399			for (i = 0; i < Number_Of_Items; i++)
400			{
401			item = menu->items[i];
402
403			Last_in_Row = row * Number_Of_Columns + (Number_Of_Columns - 1);
404
405			item->left = (col) ?
406			/* if we are not in the leftmost column, we can use the
407			predecessor in the items array */
408			menu->items[i - 1] :
409			(cycle ? menu->items[(Last_in_Row >= Number_Of_Items) ?
410			Number_Of_Items - 1 :
411			Last_in_Row] :
412			(ITEM *) 0);
413
414			item->right = ((col < (Number_Of_Columns - 1)) &&
415			((i + 1) < Number_Of_Items)
416			)?
417			menu->items[i + 1] :
418			(cycle ? menu->items[row * Number_Of_Columns] :
419			(ITEM *) 0
420			);
421
422			Last_in_Column = (menu->rows - 1) * Number_Of_Columns + col;
423
424			item->up = (row) ? menu->items[i - Number_Of_Columns] :
425			(cycle ? menu->items[(Last_in_Column >= Number_Of_Items) ?
426			Number_Of_Items - 1 :
427			Last_in_Column] :
428			(ITEM *) 0);
429
430			item->down = ((i + Number_Of_Columns) < Number_Of_Items)
431			?
432			menu->items[i + Number_Of_Columns] :
433			(cycle ? menu->items[(row + 1) < menu->rows ?
434			Number_Of_Items - 1 : col] :
435			(ITEM *) 0);
436			item->x = col;
437			item->y = row;
438			if (++col == Number_Of_Columns)
439			{
440			row++;
441			col = 0;
442			}
443			}
444			}
445			else
446			{
447			int Number_Of_Rows = menu->rows;
448
449			for (j = 0; j < Number_Of_Items; j++)
450			{
451			item = menu->items[i = (col * Number_Of_Rows + row)];
452
453			Last_in_Column = (menu->cols - 1) * Number_Of_Rows + row;
454
455			item->left = (col) ?
456			menu->items[i - Number_Of_Rows] :
457			(cycle ? (Last_in_Column >= Number_Of_Items) ?
458			menu->items[Last_in_Column - Number_Of_Rows] :
459			menu->items[Last_in_Column] :
460			(ITEM *) 0);
461
462			item->right = ((i + Number_Of_Rows) < Number_Of_Items)
463			?
464			menu->items[i + Number_Of_Rows] :
465			(cycle ? menu->items[row] : (ITEM *) 0);
466
467			Last_in_Row = col * Number_Of_Rows + (Number_Of_Rows - 1);
468
469			item->up = (row) ?
470			menu->items[i - 1] :
471			(cycle ?
472			menu->items[(Last_in_Row >= Number_Of_Items) ?
473			Number_Of_Items - 1 :
474			Last_in_Row] :
475			(ITEM *) 0);
476
477			item->down = (row < (Number_Of_Rows - 1))
478			?
479			(menu->items[((i + 1) < Number_Of_Items) ?
480			i + 1 :
481			(col - 1) * Number_Of_Rows + row + 1]) :
482			(cycle ?
483			menu->items[col * Number_Of_Rows] :
484			(ITEM *) 0
485			);
486
487			item->x = col;
488			item->y = row;
489			if ((++row) == Number_Of_Rows)
490			{
491			col++;
492			row = 0;
493			}
494			}
495			}
496			}
497			}
498
499			/*---------------------------------------------------------------------------
500			\| Facility : libnmenu
501			\| Function : void _nc_Show_Menu(const MENU *menu)
502			\|
503			\| Description : Update the window that is associated with the menu
504			\|
505			\| Return Values : -
506			+--------------------------------------------------------------------------*/
507			NCURSES_EXPORT(void)
508			_nc_Show_Menu(const MENU * menu)
509			{
510			WINDOW *win;
511			int maxy, maxx;
512
513			assert(menu);
514			if ((menu->status & _POSTED) && !(menu->status & _IN_DRIVER))
515			{
516			/* adjust the internal subwindow to start on the current top */
517			assert(menu->sub);
518			mvderwin(menu->sub, menu->spc_rows * menu->toprow, 0);
519			win = Get_Menu_Window(menu);
520
521			maxy = getmaxy(win);
522			maxx = getmaxx(win);
523
524			if (menu->height < maxy)
525			maxy = menu->height;
526			if (menu->width < maxx)
527			maxx = menu->width;
528
529			copywin(menu->sub, win, 0, 0, 0, 0, maxy - 1, maxx - 1, 0);
530			pos_menu_cursor(menu);
531			}
532			}
533
534			/*---------------------------------------------------------------------------
535			\| Facility : libnmenu
536			\| Function : void _nc_New_TopRow_and_CurrentItem(
537			\| MENU *menu,
538			\| int new_toprow,
539			\| ITEM *new_current_item)
540			\|
541			\| Description : Redisplay the menu so that the given row becomes the
542			\| top row and the given item becomes the new current
543			\| item.
544			\|
545			\| Return Values : -
546			+--------------------------------------------------------------------------*/
547			NCURSES_EXPORT(void)
548			_nc_New_TopRow_and_CurrentItem
549			(MENU * menu, int new_toprow, ITEM * new_current_item)
550			{
551			ITEM *cur_item;
552			bool mterm_called = FALSE;
553			bool iterm_called = FALSE;
554
555			assert(menu);
556			if (menu->status & _POSTED)
557			{
558			if (new_current_item != menu->curitem)
559			{
560			Call_Hook(menu, itemterm);
561			iterm_called = TRUE;
562			}
563			if (new_toprow != menu->toprow)
564			{
565			Call_Hook(menu, menuterm);
566			mterm_called = TRUE;
567			}
568
569			cur_item = menu->curitem;
570			assert(cur_item);
571			menu->toprow = new_toprow;
572			menu->curitem = new_current_item;
573
574			if (mterm_called)
575			{
576			Call_Hook(menu, menuinit);
577			}
578			if (iterm_called)
579			{
580			/* this means, move from the old current_item to the new one... */
581			Move_To_Current_Item(menu, cur_item);
582			Call_Hook(menu, iteminit);
583			}
584			if (mterm_called \|\| iterm_called)
585			{
586			_nc_Show_Menu(menu);
587			}
588			else
589			pos_menu_cursor(menu);
590			}
591			else
592			{ /* if we are not posted, this is quite simple */
593			menu->toprow = new_toprow;
594			menu->curitem = new_current_item;
595			}
596			}
597
598			/* m_global.c ends here */