contrib/ncurses/menu/m_spacing.c

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  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 /***************************************************************************
  34 * Module m_spacing                                                         *
  35 * Routines to handle spacing between entries                               *
  36 ***************************************************************************/
  37
  38 #include "menu.priv.h"
  39
  40 MODULE_ID("$Id: m_spacing.c,v 1.17 2004/12/11 23:29:34 tom Exp $")
  41
  42 #define MAX_SPC_DESC ((TABSIZE) ? (TABSIZE) : 8)
  43 #define MAX_SPC_COLS ((TABSIZE) ? (TABSIZE) : 8)
  44 #define MAX_SPC_ROWS (3)
  45
  46 /*---------------------------------------------------------------------------
  47 |   Facility      :  libnmenu
  48 |   Function      :  int set_menu_spacing(MENU *menu,int desc, int r, int c);
  49 |
  50 |   Description   :  Set the spacing between entries
  51 |
  52 |   Return Values :  E_OK                 - on success
  53 +--------------------------------------------------------------------------*/
  54 NCURSES_EXPORT(int)
  55 set_menu_spacing(MENU * menu, int s_desc, int s_row, int s_col)
  56 {
  57   MENU *m;                      /* split for ATAC workaround */
  58
  59   T((T_CALLED("set_menu_spacing(%p,%d,%d,%d)"), menu, s_desc, s_row, s_col));
  60
  61   m = Normalize_Menu(menu);
  62
  63   assert(m);
  64   if (m->status & _POSTED)
  65     RETURN(E_POSTED);
  66
  67   if (((s_desc < 0) || (s_desc > MAX_SPC_DESC)) ||
  68       ((s_row < 0) || (s_row > MAX_SPC_ROWS)) ||
  69       ((s_col < 0) || (s_col > MAX_SPC_COLS)))
  70     RETURN(E_BAD_ARGUMENT);
  71
  72   m->spc_desc = s_desc ? s_desc : 1;
  73   m->spc_rows = s_row ? s_row : 1;
  74   m->spc_cols = s_col ? s_col : 1;
  75   _nc_Calculate_Item_Length_and_Width(m);
  76
  77   RETURN(E_OK);
  78 }
  79
  80 /*---------------------------------------------------------------------------
  81 |   Facility      :  libnmenu
  82 |   Function      :  int menu_spacing (const MENU *,int *,int *,int *);
  83 |
  84 |   Description   :  Retrieve info about spacing between the entries
  85 |
  86 |   Return Values :  E_OK             - on success
  87 +--------------------------------------------------------------------------*/
  88 NCURSES_EXPORT(int)
  89 menu_spacing(const MENU * menu, int *s_desc, int *s_row, int *s_col)
  90 {
  91   const MENU *m;                /* split for ATAC workaround */
  92
  93   T((T_CALLED("menu_spacing(%p,%p,%p,%p)"), menu, s_desc, s_row, s_col));
  94
  95   m = Normalize_Menu(menu);
  96
  97   assert(m);
  98   if (s_desc)
  99     *s_desc = m->spc_desc;
 100   if (s_row)
 101     *s_row = m->spc_rows;
 102   if (s_col)
 103     *s_col = m->spc_cols;
 104
 105   RETURN(E_OK);
 106 }
 107
 108 /* m_spacing.c ends here */