/*-----------------------------------------------------------------------------+
|           The ncurses form library is  Copyright (C) 1995-1997               |
|             by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de>                 |
|                          All Rights Reserved.                                |
|                                                                              |
| Permission to use, copy, modify, and distribute this software and its        |
| documentation for any purpose and without fee is hereby granted, provided    |
| that the above copyright notice appear in all copies and that both that      |
| copyright notice and this permission notice appear in supporting             |
| documentation, and that the name of the above listed copyright holder(s) not |
| be used in advertising or publicity pertaining to distribution of the        |
| software without specific, written prior permission.                         | 
|                                                                              |
| THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO  |
| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-  |
| NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR   |
| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- |
| SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH    |
| THE USE OR PERFORMANCE OF THIS SOFTWARE.                                     |
+-----------------------------------------------------------------------------*/

#include "mf_common.h"
#include "form.h"

/* form  status values */
#define _OVLMODE         (0x04) /* Form is in overlay mode                */
#define _WINDOW_MODIFIED (0x10) /* Current field window has been modified */
#define _FCHECK_REQUIRED (0x20) /* Current field needs validation         */

/* field status values */
#define _CHANGED         (0x01) /* Field has been changed                 */
#define _NEWTOP          (0x02) /* Vertical scrolling occured             */
#define _NEWPAGE	 (0x04) /* field begins new page of form          */
#define _MAY_GROW        (0x08) /* dynamic field may still grow           */

/* fieldtype status values */
#define _LINKED_TYPE     (0x01) /* Type is a linked type                  */
#define _HAS_ARGS        (0x02) /* Type has arguments                     */
#define _HAS_CHOICE      (0x04) /* Type has choice methods                */
#define _RESIDENT        (0x08) /* Type is builtin                        */

/* If form is NULL replace form argument by default-form */
#define Normalize_Form(form)  ((form)=(form)?(form):_nc_Default_Form)

/* If field is NULL replace field argument by default-field */
#define Normalize_Field(field)  ((field)=(field)?(field):_nc_Default_Field)

/* Retrieve forms window */
#define Get_Form_Window(form) \
  ((form)->sub?(form)->sub:((form)->win?(form)->win:stdscr))

/* Calculate the size for a single buffer for this field */
#define Buffer_Length(field) ((field)->drows * (field)->dcols)

/* Calculate the total size of all buffers for this field */
#define Total_Buffer_Size(field) \
   ( (Buffer_Length(field) + 1) * (1+(field)->nbuf) )

/* Logic to determine whether or not a field is single lined */
#define Single_Line_Field(field) \
   (((field)->rows + (field)->nrow) == 1)


typedef struct typearg {
  struct typearg *left;
  struct typearg *right;
} TypeArgument;

/* This is a dummy request code (normally invalid) to be used internally
   with the form_driver() routine to position to the first active field
   on the form
*/
#define FIRST_ACTIVE_MAGIC (-291056)

#define ALL_FORM_OPTS  (                \
			O_NL_OVERLOAD  |\
			O_BS_OVERLOAD   )

#define ALL_FIELD_OPTS (           \
			O_VISIBLE |\
			O_ACTIVE  |\
			O_PUBLIC  |\
			O_EDIT    |\
			O_WRAP    |\
			O_BLANK   |\
			O_AUTOSKIP|\
			O_NULLOK  |\
			O_PASSOK  |\
			O_STATIC   )


#define C_BLANK ' '
#define is_blank(c) ((c)==C_BLANK)