1 /****************************************************************************
2 * Copyright (c) 1998 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 <juergen.pfeifer@gmx.net> 1995,1997 *
31 ****************************************************************************/
33 #include "mf_common.h"
36 /* form status values */
37 #define _OVLMODE (0x04) /* Form is in overlay mode */
38 #define _WINDOW_MODIFIED (0x10) /* Current field window has been modified */
39 #define _FCHECK_REQUIRED (0x20) /* Current field needs validation */
41 /* field status values */
42 #define _CHANGED (0x01) /* Field has been changed */
43 #define _NEWTOP (0x02) /* Vertical scrolling occured */
44 #define _NEWPAGE (0x04) /* field begins new page of form */
45 #define _MAY_GROW (0x08) /* dynamic field may still grow */
47 /* fieldtype status values */
48 #define _LINKED_TYPE (0x01) /* Type is a linked type */
49 #define _HAS_ARGS (0x02) /* Type has arguments */
50 #define _HAS_CHOICE (0x04) /* Type has choice methods */
51 #define _RESIDENT (0x08) /* Type is builtin */
53 /* This are the field options required to be a selectable field in field
54 navigation requests */
55 #define O_SELECTABLE (O_ACTIVE | O_VISIBLE)
57 /* If form is NULL replace form argument by default-form */
58 #define Normalize_Form(form) ((form)=(form)?(form):_nc_Default_Form)
60 /* If field is NULL replace field argument by default-field */
61 #define Normalize_Field(field) ((field)=(field)?(field):_nc_Default_Field)
63 /* Retrieve forms window */
64 #define Get_Form_Window(form) \
65 ((form)->sub?(form)->sub:((form)->win?(form)->win:stdscr))
67 /* Calculate the size for a single buffer for this field */
68 #define Buffer_Length(field) ((field)->drows * (field)->dcols)
70 /* Calculate the total size of all buffers for this field */
71 #define Total_Buffer_Size(field) \
72 ( (Buffer_Length(field) + 1) * (1+(field)->nbuf) )
74 /* Logic to determine whether or not a field is single lined */
75 #define Single_Line_Field(field) \
76 (((field)->rows + (field)->nrow) == 1)
78 /* Logic to determine whether or not a field is selectable */
79 #define Field_Is_Selectable(f) (((f)->opts & O_SELECTABLE)==O_SELECTABLE)
80 #define Field_Is_Not_Selectable(f) (((f)->opts & O_SELECTABLE)!=O_SELECTABLE)
82 typedef struct typearg {
84 struct typearg *right;
87 /* This is a dummy request code (normally invalid) to be used internally
88 with the form_driver() routine to position to the first active field
91 #define FIRST_ACTIVE_MAGIC (-291056)
93 #define ALL_FORM_OPTS ( \
97 #define ALL_FIELD_OPTS ( \
111 #define is_blank(c) ((c)==C_BLANK)
113 extern const FIELDTYPE* _nc_Default_FieldType;
115 extern TypeArgument* _nc_Make_Argument(const FIELDTYPE*,va_list*,int*);
116 extern TypeArgument *_nc_Copy_Argument(const FIELDTYPE*,const TypeArgument*, int*);
117 extern void _nc_Free_Argument(const FIELDTYPE*,TypeArgument*);
118 extern bool _nc_Copy_Type(FIELD*, FIELD const *);
119 extern void _nc_Free_Type(FIELD *);
121 extern int _nc_Synchronize_Attributes(FIELD*);
122 extern int _nc_Synchronize_Options(FIELD*,Field_Options);
123 extern int _nc_Set_Form_Page(FORM*,int,FIELD*);
124 extern int _nc_Refresh_Current_Field(FORM*);
125 extern FIELD* _nc_First_Active_Field(FORM*);
126 extern bool _nc_Internal_Validation(FORM*);
127 extern int _nc_Set_Current_Field(FORM*,FIELD*);
128 extern int _nc_Position_Form_Cursor(FORM*);