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Edit File: form.h
/**************************************************************************** * Copyright 2018-2019,2020 Thomas E. Dickey * * Copyright 1998-2016,2017 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 * ****************************************************************************/ /* $Id: form.h,v 0.31 2020/07/04 20:38:43 tom Exp $ */ #ifndef FORM_H #define FORM_H /* *INDENT-OFF*/ #include <curses.h> #include <eti.h> #ifdef __cplusplus extern "C" { #endif #if defined(BUILDING_FORM) # define FORM_IMPEXP NCURSES_EXPORT_GENERAL_EXPORT #else # define FORM_IMPEXP NCURSES_EXPORT_GENERAL_IMPORT #endif #define FORM_WRAPPED_VAR(type,name) extern FORM_IMPEXP type NCURSES_PUBLIC_VAR(name)(void) #define FORM_EXPORT(type) FORM_IMPEXP type NCURSES_API #define FORM_EXPORT_VAR(type) FORM_IMPEXP type #ifndef FORM_PRIV_H typedef void *FIELD_CELL; #endif #ifndef NCURSES_FIELD_INTERNALS #define NCURSES_FIELD_INTERNALS /* nothing */ #endif typedef int Form_Options; typedef int Field_Options; /********** * _PAGE * **********/ typedef struct pagenode #if !NCURSES_OPAQUE_FORM { 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 */ } #endif /* !NCURSES_OPAQUE_FORM */ _PAGE; /********** * FIELD * **********/ typedef struct fieldnode #if 1 /* not yet: !NCURSES_OPAQUE_FORM */ { 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; /* off-screen 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 */ FIELD_CELL * buf; /* field buffers */ void * usrptr; /* user pointer */ /* * The wide-character configuration requires extra information. Because * there are existing applications that manipulate the members of FIELD * directly, we cannot make the struct opaque, except by changing the ABI. * Offsets of members up to this point are the same in the narrow- and * wide-character configuration. But note that the type of buf depends on * the configuration, and is made opaque for that reason. */ NCURSES_FIELD_INTERNALS } #endif /* NCURSES_OPAQUE_FORM */ FIELD; /********* * FORM * *********/ typedef struct formnode #if 1 /* not yet: !NCURSES_OPAQUE_FORM */ { 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 *); } #endif /* !NCURSES_OPAQUE_FORM */ FORM; /************** * FIELDTYPE * **************/ typedef struct typenode #if !NCURSES_OPAQUE_FORM { 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 */ #if NCURSES_INTEROP_FUNCS union { bool (*ofcheck)(FIELD *,const void *); /* field validation */ bool (*gfcheck)(FORM*,FIELD *,const void*); /* generic field validation */ } fieldcheck; union { bool (*occheck)(int,const void *); /* character validation */ bool (*gccheck)(int,FORM*, FIELD*,const void*); /* generic char validation */ } charcheck; union { bool (*onext)(FIELD *,const void *); /* enumerate next value */ bool (*gnext)(FORM*,FIELD*,const void*); /* generic enumerate next */ } enum_next; union { bool (*oprev)(FIELD *,const void *); /* enumerate prev value */ bool (*gprev)(FORM*,FIELD*,const void*); /* generic enumerate prev */ } enum_prev; void* (*genericarg)(void*); /* Alternate Arg method */ #else 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 */ #endif } #endif /* !NCURSES_OPAQUE_FORM */ FIELDTYPE; 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 (0x0001U) #define O_ACTIVE (0x0002U) #define O_PUBLIC (0x0004U) #define O_EDIT (0x0008U) #define O_WRAP (0x0010U) #define O_BLANK (0x0020U) #define O_AUTOSKIP (0x0040U) #define O_NULLOK (0x0080U) #define O_PASSOK (0x0100U) #define O_STATIC (0x0200U) #define O_DYNAMIC_JUSTIFY (0x0400U) /* ncurses extension */ #define O_NO_LEFT_STRIP (0x0800U) /* ncurses extension */ #define O_EDGE_INSERT_STAY (0x1000U) /* ncurses extension */ #define O_INPUT_LIMIT (0x2000U) /* ncurses extension */ /* form options */ #define O_NL_OVERLOAD (0x0001U) #define O_BS_OVERLOAD (0x0002U) /* 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 word 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 FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA; extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM; extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ENUM; extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_INTEGER; extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC; extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_REGEXP; /************************************ * built-in additional field types * * They are not defined in SVr4 * ************************************/ extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_IPV4; /* Internet IP Version 4 address */ /*********************** * FIELDTYPE routines * ***********************/ extern FORM_EXPORT(FIELDTYPE *) new_fieldtype ( bool (* const field_check)(FIELD *,const void *), bool (* const char_check)(int,const void *)); extern FORM_EXPORT(FIELDTYPE *) link_fieldtype( FIELDTYPE *, FIELDTYPE *); extern FORM_EXPORT(int) free_fieldtype (FIELDTYPE *); extern FORM_EXPORT(int) set_fieldtype_arg (FIELDTYPE *, void * (* const make_arg)(va_list *), void * (* const copy_arg)(const void *), void (* const free_arg)(void *)); extern FORM_EXPORT(int) set_fieldtype_choice (FIELDTYPE *, bool (* const next_choice)(FIELD *,const void *), bool (* const prev_choice)(FIELD *,const void *)); /******************* * FIELD routines * *******************/ extern FORM_EXPORT(FIELD *) new_field (int,int,int,int,int,int); extern FORM_EXPORT(FIELD *) dup_field (FIELD *,int,int); extern FORM_EXPORT(FIELD *) link_field (FIELD *,int,int); extern FORM_EXPORT(int) free_field (FIELD *); extern FORM_EXPORT(int) field_info (const FIELD *,int *,int *,int *,int *,int *,int *); extern FORM_EXPORT(int) dynamic_field_info (const FIELD *,int *,int *,int *); extern FORM_EXPORT(int) set_max_field ( FIELD *,int); extern FORM_EXPORT(int) move_field (FIELD *,int,int); extern FORM_EXPORT(int) set_field_type (FIELD *,FIELDTYPE *,...); extern FORM_EXPORT(int) set_new_page (FIELD *,bool); extern FORM_EXPORT(int) set_field_just (FIELD *,int); extern FORM_EXPORT(int) field_just (const FIELD *); extern FORM_EXPORT(int) set_field_fore (FIELD *,chtype); extern FORM_EXPORT(int) set_field_back (FIELD *,chtype); extern FORM_EXPORT(int) set_field_pad (FIELD *,int); extern FORM_EXPORT(int) field_pad (const FIELD *); extern FORM_EXPORT(int) set_field_buffer (FIELD *,int,const char *); extern FORM_EXPORT(int) set_field_status (FIELD *,bool); extern FORM_EXPORT(int) set_field_userptr (FIELD *, void *); extern FORM_EXPORT(int) set_field_opts (FIELD *,Field_Options); extern FORM_EXPORT(int) field_opts_on (FIELD *,Field_Options); extern FORM_EXPORT(int) field_opts_off (FIELD *,Field_Options); extern FORM_EXPORT(chtype) field_fore (const FIELD *); extern FORM_EXPORT(chtype) field_back (const FIELD *); extern FORM_EXPORT(bool) new_page (const FIELD *); extern FORM_EXPORT(bool) field_status (const FIELD *); extern FORM_EXPORT(void *) field_arg (const FIELD *); extern FORM_EXPORT(void *) field_userptr (const FIELD *); extern FORM_EXPORT(FIELDTYPE *) field_type (const FIELD *); extern FORM_EXPORT(char *) field_buffer (const FIELD *,int); extern FORM_EXPORT(Field_Options) field_opts (const FIELD *); /****************** * FORM routines * ******************/ extern FORM_EXPORT(FORM *) new_form (FIELD **); extern FORM_EXPORT(FIELD **) form_fields (const FORM *); extern FORM_EXPORT(FIELD *) current_field (const FORM *); extern FORM_EXPORT(WINDOW *) form_win (const FORM *); extern FORM_EXPORT(WINDOW *) form_sub (const FORM *); extern FORM_EXPORT(Form_Hook) form_init (const FORM *); extern FORM_EXPORT(Form_Hook) form_term (const FORM *); extern FORM_EXPORT(Form_Hook) field_init (const FORM *); extern FORM_EXPORT(Form_Hook) field_term (const FORM *); extern FORM_EXPORT(int) free_form (FORM *); extern FORM_EXPORT(int) set_form_fields (FORM *,FIELD **); extern FORM_EXPORT(int) field_count (const FORM *); extern FORM_EXPORT(int) set_form_win (FORM *,WINDOW *); extern FORM_EXPORT(int) set_form_sub (FORM *,WINDOW *); extern FORM_EXPORT(int) set_current_field (FORM *,FIELD *); extern FORM_EXPORT(int) unfocus_current_field (FORM *); extern FORM_EXPORT(int) field_index (const FIELD *); extern FORM_EXPORT(int) set_form_page (FORM *,int); extern FORM_EXPORT(int) form_page (const FORM *); extern FORM_EXPORT(int) scale_form (const FORM *,int *,int *); extern FORM_EXPORT(int) set_form_init (FORM *,Form_Hook); extern FORM_EXPORT(int) set_form_term (FORM *,Form_Hook); extern FORM_EXPORT(int) set_field_init (FORM *,Form_Hook); extern FORM_EXPORT(int) set_field_term (FORM *,Form_Hook); extern FORM_EXPORT(int) post_form (FORM *); extern FORM_EXPORT(int) unpost_form (FORM *); extern FORM_EXPORT(int) pos_form_cursor (FORM *); extern FORM_EXPORT(int) form_driver (FORM *,int); # if NCURSES_WIDECHAR extern FORM_EXPORT(int) form_driver_w (FORM *,int,wchar_t); # endif extern FORM_EXPORT(int) set_form_userptr (FORM *,void *); extern FORM_EXPORT(int) set_form_opts (FORM *,Form_Options); extern FORM_EXPORT(int) form_opts_on (FORM *,Form_Options); extern FORM_EXPORT(int) form_opts_off (FORM *,Form_Options); extern FORM_EXPORT(int) form_request_by_name (const char *); extern FORM_EXPORT(const char *) form_request_name (int); extern FORM_EXPORT(void *) form_userptr (const FORM *); extern FORM_EXPORT(Form_Options) form_opts (const FORM *); extern FORM_EXPORT(bool) data_ahead (const FORM *); extern FORM_EXPORT(bool) data_behind (const FORM *); #if NCURSES_SP_FUNCS extern FORM_EXPORT(FORM *) NCURSES_SP_NAME(new_form) (SCREEN*, FIELD **); #endif #ifdef __cplusplus } #endif /* *INDENT-ON*/ #endif /* FORM_H */