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uses
ncurses,menu;
const
choices : array[0..5] of pchar = (
'Choice 1',
'Choice 2',
'Choice 3',
'Choice 4',
'Exit',
nil
);
procedure print_in_middle(win : PWINDOW;starty,startx,width : longint;_string : pchar;color : chtype);
var
length,x,y : longint;
temp : single;
begin
if win=nil then
win:=stdscr;
getyx(win, y, x);
if startx <> 0 then
x := startx;
if starty <> 0 then
y := starty;
if width=0 then
width := 80;
length := strlen(_string);
temp := (width - length)/ 2;
x := startx + round(temp);
wattron(win, color);
mvwprintw(win, y, x, '%s', [_string]);
wattroff(win, color);
refresh;
end;
var
my_items : ppitem;
c : longint;
my_menu : pmenu;
my_menu_win : pwindow;
i,n_choices : longint;
begin
{ Initialize curses }
initscr;
start_color;
cbreak;
noecho;
keypad(stdscr, 1);
init_pair(1, COLOR_RED, COLOR_BLACK);
{ Create items }
n_choices := high(choices);
getmem(my_items,n_choices*sizeof(pitem));
for i:=0 to n_choices-1 do
my_items[i] := new_item(choices[i], choices[i]);
{ Create menu }
my_menu := new_menu(ppitem(my_items));
{ Create the window to be associated with the menu }
my_menu_win := newwin(10, 40, 4, 4);
keypad(my_menu_win, 1);
{ Set main window and sub window }
set_menu_win(my_menu, my_menu_win);
set_menu_sub(my_menu, derwin(my_menu_win, 6, 38, 3, 1));
{ Set menu mark to the string ' * ' }
set_menu_mark(my_menu, ' * ');
{ Print a border around the main window and print a title }
box(my_menu_win, 0, 0);
print_in_middle(my_menu_win, 1, 0, 40, 'My Menu', COLOR_PAIR(1));
mvwaddch(my_menu_win, 2, 0, ACS_LTEE);
mvwhline(my_menu_win, 2, 1, ACS_HLINE, 38);
mvwaddch(my_menu_win, 2, 39, ACS_RTEE);
mvprintw(LINES - 2, 0, 'F1 to exit',[]);
refresh();
{ Post the menu }
post_menu(my_menu);
wrefresh(my_menu_win);
c:=wgetch(my_menu_win);
while(c<> KEY_F(1)) do
begin
case c of
KEY_DOWN:
menu_driver(my_menu, REQ_DOWN_ITEM);
KEY_UP:
menu_driver(my_menu, REQ_UP_ITEM);
end;
wrefresh(my_menu_win);
c:=wgetch(my_menu_win);
end;
{ Unpost and free all the memory taken up }
unpost_menu(my_menu);
free_menu(my_menu);
for i:=0 to n_choices-1 do
free_item(my_items[i]);
endwin();
end.
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