src/menu.h

   1 /* Copyright (C) 2020 SovietPony
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, version 3 of the License ONLY.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14  */
  15 #ifndef MENU_H_INCLUDED
  16 #define MENU_H_INCLUDED
  17
  18 #include "glob.h"
  19
  20 /* menu types */
  21 #define GM_BIG 1
  22 #define GM_SMALL 2
  23
  24 /* variant types */
  25 #define GM_BUTTON 1
  26 #define GM_SCROLLER 2
  27 #define GM_TEXTFIELD 3
  28 #define GM_SMALL_BUTTON 4
  29 #define GM_TEXTFIELD_BUTTON 5
  30
  31 /* menu messages */
  32 #define GM_GETINT 1
  33 #define GM_SETINT 2
  34 #define GM_GETSTR 3
  35 #define GM_SETSTR 4
  36 #define GM_SELECT 5 // buttons
  37 #define GM_ENTER  6 // menu
  38 #define GM_LEAVE  7 // menu
  39 #define GM_BEGIN  8 // textfield
  40 #define GM_END    9 // textfield
  41 #define GM_CANCEL 10 // textfield
  42 #define GM_QUERY  11 // menu
  43 #define GM_GETTITLE 12 // menu
  44 #define GM_GETENTRY 13 // entry
  45 #define GM_GETCAPTION 14 // entry
  46 #define GM_UP 15
  47 #define GM_DOWN 16
  48 #define GM_KEY 17
  49
  50 typedef struct menu_str_msg_t {
  51   byte type;
  52   char *s;
  53   int maxlen;
  54 } menu_str_msg_t;
  55
  56 typedef struct menu_int_msg_t {
  57   byte type;
  58   int i, a, b, s;
  59 } menu_int_msg_t;
  60
  61 typedef union menu_msg_t {
  62   byte type;
  63   menu_str_msg_t string;
  64   menu_int_msg_t integer;
  65 } menu_msg_t;
  66
  67 typedef struct menu_t menu_t;
  68 struct menu_t {
  69   int (*handler)(menu_msg_t *msg, const menu_t *m, int i);
  70 };
  71
  72 typedef struct simple_menu_t {
  73   byte type;
  74   char *title;
  75   char *say;
  76   struct simple_entry_t {
  77     char *caption;
  78     const menu_t *submenu;
  79   } entries[];
  80 } simple_menu_t;
  81
  82 extern byte _warp;
  83
  84 #define GM_MAX_INPUT 24
  85 extern char ibuf[GM_MAX_INPUT];
  86 extern byte input;
  87 extern int icur;
  88 extern int imax;
  89
  90 extern short lastkey;
  91
  92 #define GM_INIT_STRING(msg, str) GM_init_str(msg, str, sizeof str);
  93 #define GM_CYCLE(i, m, n) ((i) < (m) ? (n) : (((i) > (n)) ? (m) : (i)))
  94 int GM_init_int0 (menu_msg_t *msg, int i, int a, int b, int s);
  95 int GM_init_int (menu_msg_t *msg, int i, int a, int b, int s);
  96 int GM_init_str (menu_msg_t *msg, char *str, int maxlen);
  97 int basic_menu_handler (menu_msg_t *msg, byte type, char *title, char *say, int n, int *cur);
  98 int simple_menu_handler (menu_msg_t *msg, int i, int n, const simple_menu_t *m, int *cur);
  99
 100 int GM_push (const menu_t *m);
 101 int GM_pop (void);
 102 int GM_popall (void);
 103 const menu_t *GM_get (void);
 104 int GM_send_this (const menu_t *m, menu_msg_t *msg);
 105 int GM_send (const menu_t *m, int i, menu_msg_t *msg);
 106
 107 void GM_key (int key, int down);
 108 void GM_input (int ch);
 109 void G_code (void);
 110 int GM_act (void);
 111 void GM_init (void);
 112
 113 #endif /* MENU_H_INCLUDED */