mirror of https://github.com/tLDP/LDP
93 lines
1.8 KiB
C
93 lines
1.8 KiB
C
#include <stdio.h>
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#include <ncurses.h>
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#define WIDTH 30
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#define HEIGHT 10
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int startx = 0;
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int starty = 0;
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char *choices[] = {
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"Choice 1",
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"Choice 2",
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"Choice 3",
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"Choice 4",
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"Exit",
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};
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int n_choices = sizeof(choices) / sizeof(char *);
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void print_menu(WINDOW *menu_win, int highlight);
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int main()
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{ WINDOW *menu_win;
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int highlight = 1;
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int choice = 0;
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int c;
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initscr();
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clear();
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noecho();
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cbreak(); /* Line buffering disabled. pass on everything */
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startx = (80 - WIDTH) / 2;
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starty = (24 - HEIGHT) / 2;
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menu_win = newwin(HEIGHT, WIDTH, starty, startx);
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keypad(menu_win, TRUE);
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mvprintw(0, 0, "Use arrow keys to go up and down, Press enter to select a choice");
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refresh();
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print_menu(menu_win, highlight);
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while(1)
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{ c = wgetch(menu_win);
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switch(c)
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{ case KEY_UP:
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if(highlight == 1)
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highlight = n_choices;
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else
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--highlight;
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break;
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case KEY_DOWN:
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if(highlight == n_choices)
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highlight = 1;
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else
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++highlight;
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break;
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case 10:
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choice = highlight;
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break;
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default:
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mvprintw(24, 0, "Charcter pressed is = %3d Hopefully it can be printed as '%c'", c, c);
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refresh();
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break;
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}
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print_menu(menu_win, highlight);
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if(choice != 0) /* User did a choice come out of the infinite loop */
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break;
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}
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mvprintw(23, 0, "You chose choice %d with choice string %s\n", choice, choices[choice - 1]);
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clrtoeol();
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refresh();
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endwin();
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return 0;
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}
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void print_menu(WINDOW *menu_win, int highlight)
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{
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int x, y, i;
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x = 2;
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y = 2;
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box(menu_win, 0, 0);
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for(i = 0; i < n_choices; ++i)
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{ if(highlight == i + 1) /* High light the present choice */
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{ wattron(menu_win, A_REVERSE);
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mvwprintw(menu_win, y, x, "%s", choices[i]);
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wattroff(menu_win, A_REVERSE);
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}
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else
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mvwprintw(menu_win, y, x, "%s", choices[i]);
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++y;
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}
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wrefresh(menu_win);
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}
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