form.priv.h

ncurses-5.4

/****************************************************************************
 * Copyright (c) 1998-2002,2003 Free Software Foundation, Inc.              *
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/****************************************************************************
 *   Author:  Juergen Pfeifer, 1995,1997                                    *
 ****************************************************************************/

/* $Id: form.priv.h,v 0.11 2003/11/08 20:38:51 tom Exp $ */

#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 occurred            */
#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 built-in                       */

/* This are the field options required to be a selectable field in field
   navigation requests */
#define O_SELECTABLE (O_ACTIVE | O_VISIBLE)

/* 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)

/* Logic to determine whether or not a field is selectable */
#define Field_Is_Selectable(f)     (((f)->opts & O_SELECTABLE)==O_SELECTABLE)
#define Field_Is_Not_Selectable(f) (((f)->opts & O_SELECTABLE)!=O_SELECTABLE)

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)

extern NCURSES_EXPORT_VAR(const FIELDTYPE *) _nc_Default_FieldType;

extern NCURSES_EXPORT(TypeArgument *) _nc_Make_Argument (const FIELDTYPE*,va_list*,int*);
extern NCURSES_EXPORT(TypeArgument *) _nc_Copy_Argument (const FIELDTYPE*,const TypeArgument*, int*);
extern NCURSES_EXPORT(void) _nc_Free_Argument (const FIELDTYPE*,TypeArgument*);
extern NCURSES_EXPORT(bool) _nc_Copy_Type (FIELD*, FIELD const *);
extern NCURSES_EXPORT(void) _nc_Free_Type (FIELD *);

extern NCURSES_EXPORT(int) _nc_Synchronize_Attributes (FIELD*);
extern NCURSES_EXPORT(int) _nc_Synchronize_Options (FIELD*,Field_Options);
extern NCURSES_EXPORT(int) _nc_Set_Form_Page (FORM*,int,FIELD*);
extern NCURSES_EXPORT(int) _nc_Refresh_Current_Field (FORM*);
extern NCURSES_EXPORT(FIELD *) _nc_First_Active_Field (FORM*);
extern NCURSES_EXPORT(bool) _nc_Internal_Validation (FORM*);
extern NCURSES_EXPORT(int) _nc_Set_Current_Field (FORM*,FIELD*);
extern NCURSES_EXPORT(int) _nc_Position_Form_Cursor (FORM*);