CMake/Source/CursesDialog/form/form.h

/****************************************************************************
 * Copyright (c) 1998 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 <juergen.pfeifer@gmx.net> 1995,1997            *
 ****************************************************************************/

#ifndef FORM_H
#define FORM_H

#if defined(__sun__) && defined(__GNUC__)
 #define _MSE_INT_H
#endif

#include <curses.h>
#include <eti.h>

#include <stdarg.h>
#ifdef __cplusplus
#ifndef va_list
/*
 Some compilers move va_list into the std:: namespace and there is no way to
 tell that this has been done. Playing with things being included before or
 after stdarg.h does not solve things because we do not have control over what
 the user does.
 This hack solves this problem by moving va_list to our own namespace that is
 local for forms.
*/
namespace std {} /* Required for platforms that do not have std:: */
namespace cmakeForms_VA_LIST
{
  using namespace std;
  typedef va_list hack_va_list;
}
#define va_list cmakeForms_VA_LIST::hack_va_list
#endif /* va_list */
#endif /* __cplusplus */

#ifdef __cplusplus
  extern "C" {
#endif

typedef int Form_Options;
typedef int Field_Options;

        /**********
        *  _PAGE  *
        **********/

typedef struct {
  short pmin;     /* index of first field on page            */
  short pmax;     /* index of last field on page             */
  short smin;     /* index of top leftmost field on page     */
  short smax;     /* index of bottom rightmost field on page */
} _PAGE;

        /**********
        *  FIELD  *
        **********/

typedef struct fieldnode {
  unsigned short        status;   /* flags                      */
  short                 rows;     /* size in rows               */
  short                 cols;     /* size in cols               */
  short                 frow;     /* first row                  */
  short                 fcol;     /* first col                  */
  int                   drows;    /* dynamic rows               */
  int                   dcols;    /* dynamic cols               */
  int                   maxgrow;  /* maximum field growth       */
  int                   nrow;     /* offscreen rows             */
  short                 nbuf;     /* additional buffers         */
  short                 just;     /* justification              */
  short                 page;     /* page on form               */
  short                 index;    /* into form -> field         */
  int                   pad;      /* pad character              */
  chtype                fore;     /* foreground attribute       */
  chtype                back;     /* background attribute       */
  Field_Options         opts;     /* options                    */
  struct fieldnode *    snext;    /* sorted order pointer       */
  struct fieldnode *    sprev;    /* sorted order pointer       */
  struct fieldnode *    link;     /* linked field chain         */
  struct formnode *     form;     /* containing form            */
  struct typenode *     type;     /* field type                 */
  void *                arg;      /* argument for type          */
  char *                buf;      /* field buffers              */
  void *                usrptr;   /* user pointer               */
} FIELD;

        /**************
        *  FIELDTYPE  *
        **************/

typedef struct typenode {
  unsigned short        status;                /* flags                */
  long                  ref;                   /* reference count      */
  struct typenode *     left;                  /* ptr to operand for | */
  struct typenode *     right;                 /* ptr to operand for | */

  void* (*makearg)(va_list *);                 /* make fieldtype arg   */
  void* (*copyarg)(const void *);              /* copy fieldtype arg   */
  void  (*freearg)(void *);                    /* free fieldtype arg   */

  bool  (*fcheck)(FIELD *,const void *);       /* field validation     */
  bool  (*ccheck)(int,const void *);           /* character validation */

  bool  (*next)(FIELD *,const void *);         /* enumerate next value */
  bool  (*prev)(FIELD *,const void *);         /* enumerate prev value */

} FIELDTYPE;

        /*********
        *  FORM  *
        *********/

typedef struct formnode {
  unsigned short        status;   /* flags                      */
  short                 rows;     /* size in rows               */
  short                 cols;     /* size in cols               */
  int                   currow;   /* current row in field window*/
  int                   curcol;   /* current col in field window*/
  int                   toprow;   /* in scrollable field window */
  int                   begincol; /* in horiz. scrollable field */
  short                 maxfield; /* number of fields           */
  short                 maxpage;  /* number of pages            */
  short                 curpage;  /* index into page            */
  Form_Options          opts;     /* options                    */
  WINDOW *              win;      /* window                     */
  WINDOW *              sub;      /* subwindow                  */
  WINDOW *              w;        /* window for current field   */
  FIELD **              field;    /* field [maxfield]           */
  FIELD *               current;  /* current field              */
  _PAGE *               page;     /* page [maxpage]             */
  void *                usrptr;   /* user pointer               */

  void                  (*forminit)(struct formnode *);
  void                  (*formterm)(struct formnode *);
  void                  (*fieldinit)(struct formnode *);
  void                  (*fieldterm)(struct formnode *);

} FORM;

typedef void (*Form_Hook)(FORM *);

        /***************************
        *  miscellaneous #defines  *
        ***************************/

/* field justification */
#define NO_JUSTIFICATION        (0)
#define JUSTIFY_LEFT            (1)
#define JUSTIFY_CENTER          (2)
#define JUSTIFY_RIGHT           (3)

/* field options */
#define O_VISIBLE               (0x0001)
#define O_ACTIVE                (0x0002)
#define O_PUBLIC                (0x0004)
#define O_EDIT                  (0x0008)
#define O_WRAP                  (0x0010)
#define O_BLANK                 (0x0020)
#define O_AUTOSKIP              (0x0040)
#define O_NULLOK                (0x0080)
#define O_PASSOK                (0x0100)
#define O_STATIC                (0x0200)

/* form options */
#define O_NL_OVERLOAD           (0x0001)
#define O_BS_OVERLOAD           (0x0002)

/* form driver commands */
#define REQ_NEXT_PAGE    (KEY_MAX + 1)  /* move to next page            */
#define REQ_PREV_PAGE    (KEY_MAX + 2)  /* move to previous page        */
#define REQ_FIRST_PAGE   (KEY_MAX + 3)  /* move to first page           */
#define REQ_LAST_PAGE    (KEY_MAX + 4)  /* move to last page            */

#define REQ_NEXT_FIELD   (KEY_MAX + 5)  /* move to next field           */
#define REQ_PREV_FIELD   (KEY_MAX + 6)  /* move to previous field       */
#define REQ_FIRST_FIELD  (KEY_MAX + 7)  /* move to first field          */
#define REQ_LAST_FIELD   (KEY_MAX + 8)  /* move to last field           */
#define REQ_SNEXT_FIELD  (KEY_MAX + 9)  /* move to sorted next field    */
#define REQ_SPREV_FIELD  (KEY_MAX + 10) /* move to sorted prev field    */
#define REQ_SFIRST_FIELD (KEY_MAX + 11) /* move to sorted first field   */
#define REQ_SLAST_FIELD  (KEY_MAX + 12) /* move to sorted last field    */
#define REQ_LEFT_FIELD   (KEY_MAX + 13) /* move to left to field        */
#define REQ_RIGHT_FIELD  (KEY_MAX + 14) /* move to right to field       */
#define REQ_UP_FIELD     (KEY_MAX + 15) /* move to up to field          */
#define REQ_DOWN_FIELD   (KEY_MAX + 16) /* move to down to field        */

#define REQ_NEXT_CHAR    (KEY_MAX + 17) /* move to next char in field   */
#define REQ_PREV_CHAR    (KEY_MAX + 18) /* move to prev char in field   */
#define REQ_NEXT_LINE    (KEY_MAX + 19) /* move to next line in field   */
#define REQ_PREV_LINE    (KEY_MAX + 20) /* move to prev line in field   */
#define REQ_NEXT_WORD    (KEY_MAX + 21) /* move to next word in field   */
#define REQ_PREV_WORD    (KEY_MAX + 22) /* move to prev word in field   */
#define REQ_BEG_FIELD    (KEY_MAX + 23) /* move to first char in field  */
#define REQ_END_FIELD    (KEY_MAX + 24) /* move after last char in fld  */
#define REQ_BEG_LINE     (KEY_MAX + 25) /* move to beginning of line    */
#define REQ_END_LINE     (KEY_MAX + 26) /* move after last char in line */
#define REQ_LEFT_CHAR    (KEY_MAX + 27) /* move left in field           */
#define REQ_RIGHT_CHAR   (KEY_MAX + 28) /* move right in field          */
#define REQ_UP_CHAR      (KEY_MAX + 29) /* move up in field             */
#define REQ_DOWN_CHAR    (KEY_MAX + 30) /* move down in field           */

#define REQ_NEW_LINE     (KEY_MAX + 31) /* insert/overlay new line      */
#define REQ_INS_CHAR     (KEY_MAX + 32) /* insert blank char at cursor  */
#define REQ_INS_LINE     (KEY_MAX + 33) /* insert blank line at cursor  */
#define REQ_DEL_CHAR     (KEY_MAX + 34) /* delete char at cursor        */
#define REQ_DEL_PREV     (KEY_MAX + 35) /* delete char before cursor    */
#define REQ_DEL_LINE     (KEY_MAX + 36) /* delete line at cursor        */
#define REQ_DEL_WORD     (KEY_MAX + 37) /* delete line at cursor        */
#define REQ_CLR_EOL      (KEY_MAX + 38) /* clear to end of line         */
#define REQ_CLR_EOF      (KEY_MAX + 39) /* clear to end of field        */
#define REQ_CLR_FIELD    (KEY_MAX + 40) /* clear entire field           */
#define REQ_OVL_MODE     (KEY_MAX + 41) /* begin overlay mode           */
#define REQ_INS_MODE     (KEY_MAX + 42) /* begin insert mode            */
#define REQ_SCR_FLINE    (KEY_MAX + 43) /* scroll field forward a line  */
#define REQ_SCR_BLINE    (KEY_MAX + 44) /* scroll field backward a line */
#define REQ_SCR_FPAGE    (KEY_MAX + 45) /* scroll field forward a page  */
#define REQ_SCR_BPAGE    (KEY_MAX + 46) /* scroll field backward a page */
#define REQ_SCR_FHPAGE   (KEY_MAX + 47) /* scroll field forward  half page */
#define REQ_SCR_BHPAGE   (KEY_MAX + 48) /* scroll field backward half page */
#define REQ_SCR_FCHAR    (KEY_MAX + 49) /* horizontal scroll char          */
#define REQ_SCR_BCHAR    (KEY_MAX + 50) /* horizontal scroll char          */
#define REQ_SCR_HFLINE   (KEY_MAX + 51) /* horizontal scroll line          */
#define REQ_SCR_HBLINE   (KEY_MAX + 52) /* horizontal scroll line          */
#define REQ_SCR_HFHALF   (KEY_MAX + 53) /* horizontal scroll half line     */
#define REQ_SCR_HBHALF   (KEY_MAX + 54) /* horizontal scroll half line     */

#define REQ_VALIDATION   (KEY_MAX + 55) /* validate field               */
#define REQ_NEXT_CHOICE  (KEY_MAX + 56) /* display next field choice    */
#define REQ_PREV_CHOICE  (KEY_MAX + 57) /* display prev field choice    */

#define MIN_FORM_COMMAND (KEY_MAX + 1)  /* used by form_driver          */
#define MAX_FORM_COMMAND (KEY_MAX + 57) /* used by form_driver          */

#if defined(MAX_COMMAND)
#  if (MAX_FORM_COMMAND > MAX_COMMAND)
#    error Something is wrong -- MAX_FORM_COMMAND is greater than MAX_COMMAND
#  elif (MAX_COMMAND != (KEY_MAX + 128))
#    error Something is wrong -- MAX_COMMAND is already inconsistently defined.
#  endif
#else
#  define MAX_COMMAND (KEY_MAX + 128)
#endif

        /*************************
        *  standard field types  *
        *************************/
extern FIELDTYPE *TYPE_ALPHA,
                 *TYPE_ALNUM,
                 *TYPE_ENUM,
                 *TYPE_INTEGER,
                 *TYPE_NUMERIC,
                 *TYPE_REGEXP;

        /************************************
        *  built-in additional field types  *
        *  They are not defined in SVr4     *
        ************************************/
extern FIELDTYPE *TYPE_IPV4;      /* Internet IP Version 4 address */

        /*********************** 
        *   Default objects    *
        ***********************/ 
extern FORM  *_nc_Default_Form;
extern FIELD *_nc_Default_Field;


        /***********************
        *  FIELDTYPE routines  *
        ***********************/
extern FIELDTYPE 
                *new_fieldtype(
                    bool (* const field_check)(FIELD *,const void *),
                    bool (* const char_check)(int,const void *)),
                *link_fieldtype(FIELDTYPE *,FIELDTYPE *);

extern int      free_fieldtype(FIELDTYPE *),
                set_fieldtype_choice (FIELDTYPE *,
                    bool (* const next_choice)(FIELD *,const void *),
                    bool (* const prev_choice)(FIELD *,const void *));

        /*******************
        *  FIELD routines  *
        *******************/
extern FIELD    *new_field(int,int,int,int,int,int),
                *dup_field(FIELD *,int,int),
                *link_field(FIELD *,int,int);

extern int      free_field(FIELD *),
                field_info(const FIELD *,int *,int *,int *,int *,int *,int *),
                dynamic_field_info(const FIELD *,int *,int *,int *),
                set_max_field( FIELD *,int),
                move_field(FIELD *,int,int),
                set_field_type(FIELD *,FIELDTYPE *,...),
                set_new_page(FIELD *,bool),
                set_field_just(FIELD *,int),
                field_just(const FIELD *),
                set_field_fore(FIELD *,chtype),
                set_field_back(FIELD *,chtype),
                set_field_pad(FIELD *,int),
                field_pad(const FIELD *),
                set_field_buffer(FIELD *,int,const char *),
                set_field_status(FIELD *,bool),
                set_field_userptr(FIELD *, void *),
                set_field_opts(FIELD *,Field_Options),
                field_opts_on(FIELD *,Field_Options),
                field_opts_off(FIELD *,Field_Options);

extern chtype   field_fore(const FIELD *),
                field_back(const FIELD *);

extern bool     new_page(const FIELD *),
                field_status(const FIELD *);

extern void     *field_arg(const FIELD *);

extern void     *field_userptr(const FIELD *);

extern FIELDTYPE
                *field_type(const FIELD *);

extern char*    field_buffer(const FIELD *,int);

extern Field_Options  
                field_opts(const FIELD *);

        /******************
        *  FORM routines  *
        ******************/
extern FORM     *new_form(FIELD **);

extern FIELD    **form_fields(const FORM *),
                *current_field(const FORM *);

extern WINDOW   *form_win(const FORM *),
                *form_sub(const FORM *);

extern Form_Hook
                form_init(const FORM *),
                form_term(const FORM *),
                field_init(const FORM *),
                field_term(const FORM *);

extern int      free_form(FORM *),
                set_form_fields(FORM *,FIELD **),
                field_count(const FORM *),
                set_form_win(FORM *,WINDOW *),
                set_form_sub(FORM *,WINDOW *),
                set_current_field(FORM *,FIELD *),
                field_index(const FIELD *),
                set_form_page(FORM *,int),
                form_page(const FORM *),
                scale_form(const FORM *,int *,int *),
                set_form_init(FORM *,Form_Hook),
                set_form_term(FORM *,Form_Hook),
                set_field_init(FORM *,Form_Hook),
                set_field_term(FORM *,Form_Hook),
                post_form(FORM *),
                unpost_form(FORM *),
                pos_form_cursor(FORM *),
                form_driver(FORM *,int),
                set_form_userptr(FORM *,void *),
                set_form_opts(FORM *,Form_Options),
                form_opts_on(FORM *,Form_Options),
                form_opts_off(FORM *,Form_Options),
                form_request_by_name(const char *);

extern const char
                *form_request_name(int);

extern void     *form_userptr(const FORM *);

extern Form_Options
                form_opts(const FORM *);

extern bool     data_ahead(const FORM *),
                data_behind(const FORM *);

#ifdef __cplusplus
  }
#endif

#endif  /* FORM_H */