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/* -*- c -*- ------------------------------------------------------------- *
*
* Copyright 2004 Murali Krishnan Ganapathy - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
* Bostom MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
#ifndef __MENU_H__
#define __MENU_H__
#include "biosio.h"
#include "string.h"
// Scancodes of some keys
#define ESCAPE 1
#define ENTERA 28
#define ENTERB 224
#define HOMEKEY 71
#define UPARROW 72
#define PAGEUP 73
#define LTARROW 75
#define RTARROW 77
#define ENDKEY 79
#define DNARROW 80
#define PAGEDN 81
#define SPACEKEY 57 // Scan code for SPACE
// Attributes
#if 0
/* Original black/white with blink */
#define NORMALATTR 0x70
#define REVERSEATTR 0x87
#define INACTATTR 0x74
#define REVINACTATTR 0x87
#define STATUSATTR 0xF0
#define FILLCHAR 178
#define FILLATTR 0x07
#define SHADOWATTR 0x08
#define SPACECHAR ' '
#define TFILLCHAR ' '
#define TITLEATTR 0x70
#else
/* Alternate color scheme */
#define NORMALATTR 0x17
#define REVERSEATTR 0x70
#define INACTATTR 0x18
#define REVINACTATTR 0x78
#define STATUSATTR 0x74
#define FILLCHAR 177
#define FILLATTR 0x01
#define SHADOWATTR 0x00
#define SPACECHAR ' '
#define TFILLCHAR ' '
#define TITLEATTR 0x70
#endif
#define TITLESTR "COMBOOT Menu System for SYSLINUX developed by Murali Krishnan Ganapathy"
// Single line Box drawing Chars
#define TOPLEFT 218
#define BOTLEFT 192
#define TOPRIGHT 191
#define BOTRIGHT 217
#define TOP 196
#define BOT 196
#define LEFT 179
#define RIGHT 179
// Double line Box Drawing Chars
/*
#define TOPLEFT 201
#define BOTLEFT 200
#define TOPRIGHT 187
#define BOTRIGHT 188
#define TOP 205
#define BOT 205
#define LEFT 186
#define RIGHT 186
*/
// Attributes of the menu system
#define MAXMENUS 10 // Maximum number of menu's allowed
#define MAXMENUSIZE 10 // Maximum number of entries in each menu
#define MENULEN 30 // Each menu entry is atmost MENULEN chars including the terminating $
#define STATLEN 70 // Maximum length of status string
#define ACTIONLEN 80 // Maximum length of an action string
// Layout of menu
#define MENUROW 3 // Row where menu is displayed
#define MENUCOL 4 // Col where menu is displayed
#define MENUPAGE 1 // show in display page 1
#define STATLINE 24 // Line number where status line starts
// Other Chars
#define SUBMENUCHAR 175 // This is >> symbol, << is 174
#define CHECKED 251 // Checkmark
#define UNCHECKED 250 // Light bullet
typedef enum {OPT_INACTIVE, OPT_SUBMENU, OPT_RUN, OPT_EXITMENU, OPT_CHECKBOX, OPT_RADIOBTN, OPT_EXIT} t_action;
typedef union {
char submenunum;
char checked; // For check boxes
char choice; // For Radio buttons
} t_itemdata;
struct s_menuitem;
struct s_menu;
struct s_menusystem;
typedef void (*t_item_handler)(struct s_menusystem *, struct s_menuitem *);
typedef void (*t_menusystem_handler)(struct s_menusystem *, struct s_menuitem *);
typedef struct s_menuitem {
char item[MENULEN+2];
char status[STATLEN+2];
char active; // Is this item active or not
t_action action;
char data[ACTIONLEN+2];
t_itemdata itemdata; // Data depends on action value
char index; // Index within the menu array
char parindex; // Index of the menu in which this item appears.
void * extra_data; // Any other data user can point to
t_item_handler handler; // Pointer to function of type menufn
} t_menuitem;
typedef struct s_menu {
char numitems;
char menuwidth;
char title[MENULEN+2];
t_menuitem items[MAXMENUSIZE];
} t_menu;
typedef struct s_menusystem {
t_menu menus[MAXMENUS];
char title[80]; // Maximum title length
t_menusystem_handler handler; // Handler function called every time a menu is re-printed.
char nummenus;
char normalattr;
char reverseattr;
char inactattr;
char revinactattr;
char statusattr;
char fillchar;
char fillattr;
char spacechar;
char tfillchar;
char titleattr;
char shadowattr;
char statline;
char menupage;
} t_menusystem;
// User callable Functions
t_menuitem * showmenus(char startmenu);
void init_menusystem(const char *title);
void set_normal_attr(char normal, char selected, char inactivenormal, char inactiveselected);
void set_status_info(char statusattr, char statline);
void set_title_info(char tfillchar, char titleattr);
void set_misc_info(char fillchar, char fillattr,char spacechar, char shadowattr);
void reg_handler( t_menusystem_handler handler); // Register handler
void unreg_handler();
// Create a new menu and return its position
int add_menu(const char *title);
// Add item to the "current" menu
t_menuitem * add_item(const char *item, const char *status, t_action action, const char *data, char itemdata);
// Main function for the user's config file
int menumain(void);
#endif
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