xref: /freebsd/contrib/ncurses/menu/menu.h (revision 7f3dea244c40159a41ab22da77a434d7c5b5e85a)
1 /****************************************************************************
2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
3  *                                                                          *
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:                 *
11  *                                                                          *
12  * The above copyright notice and this permission notice shall be included  *
13  * in all copies or substantial portions of the Software.                   *
14  *                                                                          *
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.                               *
22  *                                                                          *
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       *
26  * authorization.                                                           *
27  ****************************************************************************/
28 
29 /****************************************************************************
30  *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
31  ****************************************************************************/
32 
33 #ifndef ETI_MENU
34 #define ETI_MENU
35 
36 #include <curses.h>
37 #include <eti.h>
38 
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42 
43 typedef int Menu_Options;
44 typedef int Item_Options;
45 
46 /* Menu options: */
47 #define O_ONEVALUE      (0x01)
48 #define O_SHOWDESC      (0x02)
49 #define O_ROWMAJOR      (0x04)
50 #define O_IGNORECASE    (0x08)
51 #define O_SHOWMATCH     (0x10)
52 #define O_NONCYCLIC     (0x20)
53 
54 /* Item options: */
55 #define O_SELECTABLE    (0x01)
56 
57 typedef struct
58 {
59   const char* str;
60   unsigned short length;
61 } TEXT;
62 
63 typedef struct tagITEM
64 {
65   TEXT           name;        /* name of menu item                         */
66   TEXT           description; /* description of item, optional in display  */
67   struct tagMENU *imenu;      /* Pointer to parent menu                    */
68   void           *userptr;    /* Pointer to user defined per item data     */
69   Item_Options   opt;         /* Item options                              */
70   short          index;       /* Item number if connected to a menu        */
71   short          y;           /* y and x location of item in menu          */
72   short          x;
73   bool           value;       /* Selection value                           */
74 
75   struct tagITEM *left;       /* neighbour items                           */
76   struct tagITEM *right;
77   struct tagITEM *up;
78   struct tagITEM *down;
79 
80 } ITEM;
81 
82 typedef void (*Menu_Hook)(struct tagMENU *);
83 
84 typedef struct tagMENU
85 {
86   short          height;                /* Nr. of chars high               */
87   short          width;                 /* Nr. of chars wide               */
88   short          rows;                  /* Nr. of items high               */
89   short          cols;                  /* Nr. of items wide               */
90   short          frows;                 /* Nr. of formatted items high     */
91   short          fcols;                 /* Nr. of formatted items wide     */
92   short          arows;                 /* Nr. of items high (actual)      */
93   short          namelen;               /* Max. name length                */
94   short          desclen;               /* Max. description length         */
95   short          marklen;               /* Length of mark, if any          */
96   short          itemlen;               /* Length of one item              */
97   short          spc_desc;              /* Spacing for descriptor          */
98   short          spc_cols;              /* Spacing for columns             */
99   short          spc_rows;              /* Spacing for rows                */
100   char          *pattern;               /* Buffer to store match chars     */
101   short          pindex;                /* Index into pattern buffer       */
102   WINDOW        *win;                   /* Window containing menu          */
103   WINDOW        *sub;                   /* Subwindow for menu display      */
104   WINDOW        *userwin;               /* User's window                   */
105   WINDOW        *usersub;               /* User's subwindow                */
106   ITEM          **items;                /* array of items                  */
107   short          nitems;                /* Nr. of items in menu            */
108   ITEM          *curitem;               /* Current item                    */
109   short          toprow;                /* Top row of menu                 */
110   chtype         fore;                  /* Selection attribute             */
111   chtype         back;                  /* Nonselection attribute          */
112   chtype         grey;                  /* Inactive attribute              */
113   unsigned char  pad;                   /* Pad character                   */
114 
115   Menu_Hook      menuinit;              /* User hooks                      */
116   Menu_Hook      menuterm;
117   Menu_Hook      iteminit;
118   Menu_Hook      itemterm;
119 
120   void          *userptr;               /* Pointer to menus user data      */
121   char          *mark;                  /* Pointer to marker string        */
122 
123   Menu_Options   opt;                   /* Menu options                    */
124   unsigned short status;                /* Internal state of menu          */
125 
126 } MENU;
127 
128 
129 /* Define keys */
130 
131 #define REQ_LEFT_ITEM           (KEY_MAX + 1)
132 #define REQ_RIGHT_ITEM          (KEY_MAX + 2)
133 #define REQ_UP_ITEM             (KEY_MAX + 3)
134 #define REQ_DOWN_ITEM           (KEY_MAX + 4)
135 #define REQ_SCR_ULINE           (KEY_MAX + 5)
136 #define REQ_SCR_DLINE           (KEY_MAX + 6)
137 #define REQ_SCR_DPAGE           (KEY_MAX + 7)
138 #define REQ_SCR_UPAGE           (KEY_MAX + 8)
139 #define REQ_FIRST_ITEM          (KEY_MAX + 9)
140 #define REQ_LAST_ITEM           (KEY_MAX + 10)
141 #define REQ_NEXT_ITEM           (KEY_MAX + 11)
142 #define REQ_PREV_ITEM           (KEY_MAX + 12)
143 #define REQ_TOGGLE_ITEM         (KEY_MAX + 13)
144 #define REQ_CLEAR_PATTERN       (KEY_MAX + 14)
145 #define REQ_BACK_PATTERN        (KEY_MAX + 15)
146 #define REQ_NEXT_MATCH          (KEY_MAX + 16)
147 #define REQ_PREV_MATCH          (KEY_MAX + 17)
148 
149 #define MIN_MENU_COMMAND        (KEY_MAX + 1)
150 #define MAX_MENU_COMMAND        (KEY_MAX + 17)
151 
152 /*
153  * Some AT&T code expects MAX_COMMAND to be out-of-band not
154  * just for menu commands but for forms ones as well.
155  */
156 #if defined(MAX_COMMAND)
157 #  if (MAX_MENU_COMMAND > MAX_COMMAND)
158 #    error Something is wrong -- MAX_MENU_COMMAND is greater than MAX_COMMAND
159 #  elif (MAX_COMMAND != (KEY_MAX + 128))
160 #    error Something is wrong -- MAX_COMMAND is already inconsistently defined.
161 #  endif
162 #else
163 #  define MAX_COMMAND (KEY_MAX + 128)
164 #endif
165 
166 
167 /* --------- prototypes for libmenu functions ----------------------------- */
168 
169 extern ITEM     **menu_items(const MENU *),
170                 *current_item(const MENU *),
171                 *new_item(const char *,const char *);
172 
173 extern MENU     *new_menu(ITEM **);
174 
175 extern Item_Options  item_opts(const ITEM *);
176 extern Menu_Options  menu_opts(const MENU *);
177 
178 Menu_Hook       item_init(const MENU *),
179                 item_term(const MENU *),
180                 menu_init(const MENU *),
181                 menu_term(const MENU *);
182 
183 extern WINDOW   *menu_sub(const MENU *),
184                 *menu_win(const MENU *);
185 
186 extern const char *item_description(const ITEM *),
187                   *item_name(const ITEM *),
188                   *menu_mark(const MENU *),
189                   *menu_request_name(int);
190 
191 extern char     *menu_pattern(const MENU *);
192 
193 extern void     *menu_userptr(const MENU *),
194                 *item_userptr(const ITEM *);
195 
196 extern chtype   menu_back(const MENU *),
197                 menu_fore(const MENU *),
198                 menu_grey(const MENU *);
199 
200 extern int      free_item(ITEM *),
201                 free_menu(MENU *),
202                 item_count(const MENU *),
203                 item_index(const ITEM *),
204                 item_opts_off(ITEM *,Item_Options),
205                 item_opts_on(ITEM *,Item_Options),
206                 menu_driver(MENU *,int),
207                 menu_opts_off(MENU *,Menu_Options),
208                 menu_opts_on(MENU *,Menu_Options),
209                 menu_pad(const MENU *),
210                 pos_menu_cursor(const MENU *),
211                 post_menu(MENU *),
212                 scale_menu(const MENU *,int *,int *),
213                 set_current_item(MENU *menu,ITEM *item),
214                 set_item_init(MENU *,void(*)(MENU *)),
215                 set_item_opts(ITEM *,Item_Options),
216                 set_item_term(MENU *,void(*)(MENU *)),
217                 set_item_userptr(ITEM *, void *),
218                 set_item_value(ITEM *,bool),
219                 set_menu_back(MENU *,chtype),
220                 set_menu_fore(MENU *,chtype),
221                 set_menu_format(MENU *,int,int),
222                 set_menu_grey(MENU *,chtype),
223                 set_menu_init(MENU *,void(*)(MENU *)),
224                 set_menu_items(MENU *,ITEM **),
225                 set_menu_mark(MENU *, const char *),
226                 set_menu_opts(MENU *,Menu_Options),
227                 set_menu_pad(MENU *,int),
228                 set_menu_pattern(MENU *,const char *),
229                 set_menu_sub(MENU *,WINDOW *),
230                 set_menu_term(MENU *,void(*)(MENU *)),
231                 set_menu_userptr(MENU *,void *),
232                 set_menu_win(MENU *,WINDOW *),
233                 set_top_row(MENU *,int),
234                 top_row(const MENU *),
235                 unpost_menu(MENU *),
236                 menu_request_by_name(const char *),
237                 set_menu_spacing(MENU *,int,int,int),
238                 menu_spacing(const MENU *,int *,int *,int *);
239 
240 
241 extern bool     item_value(const ITEM *),
242                 item_visible(const ITEM *);
243 
244 void            menu_format(const MENU *,int *,int *);
245 
246 #ifdef __cplusplus
247   }
248 #endif
249 
250 #endif /* ETI_MENU */
251