1 /****************************************************************************
2 * Copyright (c) 1998-2018,2019 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer, 1995,1997 *
31 ****************************************************************************/
33 /* $Id: form.priv.h,v 0.44 2019/01/26 22:17:48 Leon.Winter Exp $ */
38 #include "curses.priv.h"
40 #define NCURSES_OPAQUE_FORM 0
42 #include "mf_common.h"
50 #define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */
53 #define FIELD_CELL NCURSES_CH_T
55 #define NCURSES_FIELD_INTERNALS char** expanded; WINDOW *working;
56 #define NCURSES_FIELD_EXTENSION , (char **)0, (WINDOW *)0
60 #define FIELD_CELL char
62 #define NCURSES_FIELD_EXTENSION /* nothing */
68 /***********************
70 ***********************/
71 extern NCURSES_EXPORT_VAR(FORM *) _nc_Default_Form;
72 extern NCURSES_EXPORT_VAR(FIELD *) _nc_Default_Field;
73 extern NCURSES_EXPORT_VAR(FIELDTYPE *) _nc_Default_FieldType;
75 /* form status values */
76 #define _OVLMODE (0x04U) /* Form is in overlay mode */
77 #define _WINDOW_MODIFIED (0x10U) /* Current field window has been modified */
78 #define _FCHECK_REQUIRED (0x20U) /* Current field needs validation */
80 /* field status values */
81 #define _CHANGED (0x01U) /* Field has been changed */
82 #define _NEWTOP (0x02U) /* Vertical scrolling occurred */
83 #define _NEWPAGE (0x04U) /* field begins new page of form */
84 #define _MAY_GROW (0x08U) /* dynamic field may still grow */
86 /* fieldtype status values */
87 #define _LINKED_TYPE (0x01U) /* Type is a linked type */
88 #define _HAS_ARGS (0x02U) /* Type has arguments */
89 #define _HAS_CHOICE (0x04U) /* Type has choice methods */
90 #define _RESIDENT (0x08U) /* Type is built-in */
91 #define _GENERIC (0x10U) /* A generic field type */
93 /* This are the field options required to be a selectable field in field
94 navigation requests */
95 #define O_SELECTABLE (O_ACTIVE | O_VISIBLE)
97 /* If form is NULL replace form argument by default-form */
98 #define Normalize_Form(form) \
99 ((form) = (form != 0) ? (form) : _nc_Default_Form)
101 /* If field is NULL replace field argument by default-field */
102 #define Normalize_Field(field) \
103 ((field) = (field != 0) ? (field) : _nc_Default_Field)
106 #define Get_Form_Screen(form) \
107 ((form)->win ? _nc_screen_of((form->win)):CURRENT_SCREEN)
109 #define Get_Form_Screen(form) CURRENT_SCREEN
112 /* Retrieve forms window */
113 #define Get_Form_Window(form) \
118 : StdScreen(Get_Form_Screen(form))))
120 /* Calculate the size for a single buffer for this field */
121 #define Buffer_Length(field) ((field)->drows * (field)->dcols)
123 /* Calculate the total size of all buffers for this field */
124 #define Total_Buffer_Size(field) \
125 ( (size_t)(Buffer_Length(field) + 1) * (size_t)(1+(field)->nbuf) * sizeof(FIELD_CELL) )
127 /* Logic to determine whether or not a field is single lined */
128 #define Single_Line_Field(field) \
129 (((field)->rows + (field)->nrow) == 1)
131 #define Field_Has_Option(f,o) ((((unsigned)(f)->opts) & o) != 0)
133 /* Logic to determine whether or not a field is selectable */
134 #define Field_Is_Selectable(f) (((unsigned)((f)->opts) & O_SELECTABLE)==O_SELECTABLE)
135 #define Field_Is_Not_Selectable(f) (((unsigned)((f)->opts) & O_SELECTABLE)!=O_SELECTABLE)
137 typedef struct typearg
139 struct typearg *left;
140 struct typearg *right;
144 /* This is a dummy request code (normally invalid) to be used internally
145 with the form_driver() routine to position to the first active field
148 #define FIRST_ACTIVE_MAGIC (-291056)
150 #define ALL_FORM_OPTS ( \
154 #define STD_FIELD_OPTS (Field_Options)( \
166 #define ALL_FIELD_OPTS (Field_Options)( \
170 O_EDGE_INSERT_STAY |\
174 #define is_blank(c) ((c)==C_BLANK)
178 extern NCURSES_EXPORT(TypeArgument *) _nc_Make_Argument (const FIELDTYPE*, va_list*, int*);
179 extern NCURSES_EXPORT(TypeArgument *) _nc_Copy_Argument (const FIELDTYPE*, const TypeArgument*, int*);
180 extern NCURSES_EXPORT(void) _nc_Free_Argument (const FIELDTYPE*, TypeArgument*);
181 extern NCURSES_EXPORT(bool) _nc_Copy_Type (FIELD*, FIELD const *);
182 extern NCURSES_EXPORT(void) _nc_Free_Type (FIELD *);
184 extern NCURSES_EXPORT(int) _nc_Synchronize_Attributes (FIELD*);
185 extern NCURSES_EXPORT(int) _nc_Synchronize_Options (FIELD*, Field_Options);
186 extern NCURSES_EXPORT(int) _nc_Set_Form_Page (FORM*, int, FIELD*);
187 extern NCURSES_EXPORT(int) _nc_Refresh_Current_Field (FORM*);
188 extern NCURSES_EXPORT(FIELD *) _nc_First_Active_Field (FORM*);
189 extern NCURSES_EXPORT(bool) _nc_Internal_Validation (FORM*);
190 extern NCURSES_EXPORT(int) _nc_Set_Current_Field (FORM*, FIELD*);
191 extern NCURSES_EXPORT(int) _nc_Position_Form_Cursor (FORM*);
192 extern NCURSES_EXPORT(void) _nc_Unset_Current_Field(FORM *form);
194 #if NCURSES_INTEROP_FUNCS
195 extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_INTEGER(void);
196 extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_ALNUM(void);
197 extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_ALPHA(void);
198 extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_ENUM(void);
199 extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_NUMERIC(void);
200 extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_REGEXP(void);
201 extern NCURSES_EXPORT(FIELDTYPE *) _nc_TYPE_IPV4(void);
203 extern NCURSES_EXPORT(FIELDTYPE *)
204 _nc_generic_fieldtype(bool (*const field_check) (FORM*,
207 bool (*const char_check) (int,
211 bool (*const next)(FORM*,FIELD*,const void*),
212 bool (*const prev)(FORM*,FIELD*,const void*),
213 void (*freecallback)(void*));
214 extern NCURSES_EXPORT(int) _nc_set_generic_fieldtype(FIELD*, FIELDTYPE*, int (*)(void**));
215 extern NCURSES_EXPORT(WINDOW*) _nc_form_cursor(const FORM* , int* , int* );
217 #define INIT_FT_FUNC(func) {func}
219 #define INIT_FT_FUNC(func) func
222 extern NCURSES_EXPORT(void) _nc_get_fieldbuffer(FORM*, FIELD*, FIELD_CELL*);
224 #if USE_WIDEC_SUPPORT
225 extern NCURSES_EXPORT(wchar_t *) _nc_Widen_String(char *, int *);
230 #define returnField(code) TRACE_RETURN1(code,field)
231 #define returnFieldPtr(code) TRACE_RETURN1(code,field_ptr)
232 #define returnForm(code) TRACE_RETURN1(code,form)
233 #define returnFieldType(code) TRACE_RETURN1(code,field_type)
234 #define returnFormHook(code) TRACE_RETURN1(code,form_hook)
236 extern NCURSES_EXPORT(FIELD **) _nc_retrace_field_ptr (FIELD **);
237 extern NCURSES_EXPORT(FIELD *) _nc_retrace_field (FIELD *);
238 extern NCURSES_EXPORT(FIELDTYPE *) _nc_retrace_field_type (FIELDTYPE *);
239 extern NCURSES_EXPORT(FORM *) _nc_retrace_form (FORM *);
240 extern NCURSES_EXPORT(Form_Hook) _nc_retrace_form_hook (Form_Hook);
244 #define returnFieldPtr(code) return code
245 #define returnFieldType(code) return code
246 #define returnField(code) return code
247 #define returnForm(code) return code
248 #define returnFormHook(code) return code
250 #endif /* TRACE/!TRACE */
253 * Use Check_CTYPE_Field() to simplify FIELDTYPE's that use only the ccheck()
256 #if USE_WIDEC_SUPPORT
257 #define Check_CTYPE_Field(result, buffer, width, ccheck) \
258 while (*buffer && *buffer == ' ') \
262 bool blank = FALSE; \
265 wchar_t *list = _nc_Widen_String((char *)buffer, &len); \
269 for (n = 0; n < len; ++n) \
273 if (list[n] != ' ') \
279 else if (list[n] == ' ') \
282 result = (n + 1 >= width); \
284 else if (!ccheck(list[n], NULL)) \
294 #define Check_CTYPE_Field(result, buffer, width, ccheck) \
295 while (*buffer && *buffer == ' ') \
299 unsigned char *s = buffer; \
301 while (*buffer && ccheck(*buffer, NULL)) \
303 l = (int)(buffer - s); \
304 while (*buffer && *buffer == ' ') \
306 result = ((*buffer || (l < width)) ? FALSE : TRUE); \
311 #endif /* FORM_PRIV_H */