359 lines
7.2 KiB
C
359 lines
7.2 KiB
C
/*
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* newdemo.c - A demo program using PDCurses. The program illustrate
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* the use of colours for text output.
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*
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* $Id: newdemo.c,v 1.18 2001/03/10 22:27:17 tom Exp $
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*/
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#include <test.priv.h>
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#include <signal.h>
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#include <time.h>
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#include <string.h>
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#define delay_output(x) napms(x)
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/*
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* The Australian map
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*/
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const char *AusMap[16] =
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{
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" A A ",
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" N.T. AAAAA AAAA ",
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" AAAAAAAAAAA AAAAAAAA ",
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" AAAAAAAAAAAAAAAAAAAAAAAAA Qld.",
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"AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
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"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
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" AAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
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" AAAAAAAAAAAAAAAAAAAAAAAAA N.S.W.",
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"W.A. AAAAAAAAA AAAAAA Vic.",
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" AAA S.A. AA",
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" A Tas.",
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""
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};
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/*
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* Funny messages
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*/
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#define NMESSAGES 6
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NCURSES_CONST char *messages[] =
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{
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"Hello from the Land Down Under",
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"The Land of crocs. and a big Red Rock",
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"Where the sunflower runs along the highways",
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"the dusty red roads lead one to loneliness",
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"Blue sky in the morning and",
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"freezing nights and twinkling stars",
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""
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};
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/*
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* Trap interrupt
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*/
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static RETSIGTYPE
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trap(int sig GCC_UNUSED)
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{
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endwin();
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exit(EXIT_FAILURE);
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}
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/*
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* Wait for user
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*/
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static int
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WaitForUser(WINDOW *win)
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{
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time_t t;
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chtype key;
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nodelay(win, TRUE);
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t = time((time_t *) 0);
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while (1) {
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if ((int) (key = wgetch(win)) != ERR) {
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if (key == 'q' || key == 'Q')
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return 1;
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else
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return 0;
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}
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if (time((time_t *) 0) - t > 5)
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return 0;
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}
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}
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static void
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set_colors(WINDOW *win, int pair, int foreground, int background)
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{
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if (has_colors()) {
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if (pair > COLOR_PAIRS)
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pair = COLOR_PAIRS;
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init_pair(pair, foreground, background);
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wattrset(win, COLOR_PAIR(pair));
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}
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}
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static int
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use_colors(WINDOW *win, int pair, int attrs)
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{
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if (has_colors()) {
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if (pair > COLOR_PAIRS)
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pair = COLOR_PAIRS;
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attrs |= COLOR_PAIR(pair);
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}
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wattrset(win, attrs);
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return attrs;
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}
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/*
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* Test sub windows
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*/
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static int
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SubWinTest(WINDOW *win)
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{
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int w, h, sw, sh, bx, by;
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WINDOW *swin1, *swin2, *swin3;
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getmaxyx(win, h, w);
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getbegyx(win, by, bx);
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sw = w / 3;
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sh = h / 3;
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if ((swin1 = subwin(win, sh, sw, by + 3, bx + 5)) == NULL)
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return 1;
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if ((swin2 = subwin(win, sh, sw, by + 4, bx + 8)) == NULL)
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return 1;
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if ((swin3 = subwin(win, sh, sw, by + 5, bx + 11)) == NULL)
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return 1;
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set_colors(swin1, 8, COLOR_RED, COLOR_BLUE);
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werase(swin1);
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mvwaddstr(swin1, 0, 3, "Sub-window 1");
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wrefresh(swin1);
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set_colors(swin2, 9, COLOR_CYAN, COLOR_MAGENTA);
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werase(swin2);
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mvwaddstr(swin2, 0, 3, "Sub-window 2");
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wrefresh(swin2);
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set_colors(swin3, 10, COLOR_YELLOW, COLOR_GREEN);
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werase(swin3);
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mvwaddstr(swin3, 0, 3, "Sub-window 3");
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wrefresh(swin3);
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delwin(swin1);
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delwin(swin2);
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delwin(swin3);
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WaitForUser(win);
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return 0;
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}
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static int
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bounce(int n, int *dir, int len)
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{
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if (*dir > 0)
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++n;
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else
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--n;
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if (n <= 1 || n >= len - 2)
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*dir = *dir ? 0 : 1;
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return n;
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}
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/*
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* Bouncing balls
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*/
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static int
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BouncingBalls(WINDOW *win)
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{
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int w, h;
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int x1, y1, xd1, yd1;
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int x2, y2, xd2, yd2;
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int x3, y3, xd3, yd3;
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getmaxyx(win, h, w);
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x1 = 2 + rand() % (w - 4);
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y1 = 2 + rand() % (h - 4);
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x2 = 2 + rand() % (w - 4);
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y2 = 2 + rand() % (h - 4);
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x3 = 2 + rand() % (w - 4);
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y3 = 2 + rand() % (h - 4);
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xd1 = 1;
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yd1 = 1;
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xd2 = 1;
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yd2 = 0;
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xd3 = 0;
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yd3 = 1;
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nodelay(win, TRUE);
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while (wgetch(win) == ERR) {
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x1 = bounce(x1, &xd1, w);
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y1 = bounce(y1, &yd1, h);
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x2 = bounce(x2, &xd2, w);
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y2 = bounce(y2, &yd2, h);
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x3 = bounce(x3, &xd3, w);
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y3 = bounce(y3, &yd3, h);
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set_colors(win, 11, COLOR_RED, COLOR_BLUE);
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mvwaddch(win, y1, x1, 'O');
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set_colors(win, 12, COLOR_BLUE, COLOR_RED);
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mvwaddch(win, y2, x2, '*');
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set_colors(win, 13, COLOR_YELLOW, COLOR_WHITE);
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mvwaddch(win, y3, x3, '@');
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wmove(win, 0, 0);
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wrefresh(win);
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delay_output(100);
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}
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return 0;
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}
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/*
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* Main driver
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*/
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int
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main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
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{
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WINDOW *win;
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int w, x, y, i, j, k;
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char buffer[200];
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const char *message;
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int width, height;
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chtype save[80];
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chtype c;
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initscr();
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if (has_colors())
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start_color();
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cbreak();
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curs_set(0);
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signal(SIGINT, trap);
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width = 48;
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height = 14; /* Create a drawing window */
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win = newwin(height, width, (LINES - height) / 2, (COLS - width) / 2);
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if (win == NULL) {
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endwin();
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return 1;
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}
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while (1) {
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set_colors(win, 1, COLOR_WHITE, COLOR_BLUE);
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werase(win);
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set_colors(win, 2, COLOR_RED, COLOR_RED);
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box(win, ACS_VLINE, ACS_HLINE);
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wrefresh(win);
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/* Do ramdom output of a character */
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use_colors(win, 1, A_NORMAL);
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c = 'a';
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for (i = 0; i < 5000; ++i) {
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x = rand() % (width - 2) + 1;
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y = rand() % (height - 2) + 1;
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mvwaddch(win, y, x, c);
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wrefresh(win);
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nodelay(win, TRUE);
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if (wgetch(win) != ERR)
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break;
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if (i == 2000) {
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c = 'b';
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set_colors(win, 3, COLOR_CYAN, COLOR_YELLOW);
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}
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}
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SubWinTest(win);
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/* Erase and draw green window */
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set_colors(win, 4, COLOR_YELLOW, COLOR_GREEN);
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wbkgd(win, use_colors(win, 4, A_BOLD));
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werase(win);
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wrefresh(win);
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/* Draw RED bounding box */
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use_colors(win, 2, A_NORMAL);
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box(win, ' ', ' ');
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wrefresh(win);
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/* Display Australia map */
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use_colors(win, 4, A_BOLD);
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i = 0;
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while (*AusMap[i]) {
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mvwaddstr(win, i + 1, 8, AusMap[i]);
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wrefresh(win);
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delay_output(50);
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++i;
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}
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set_colors(win, 5, COLOR_BLUE, COLOR_WHITE);
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use_colors(win, 5, A_BLINK);
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mvwaddstr(win, height - 2, 6, " PDCurses 2.1 for DOS, OS/2 and Unix");
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wrefresh(win);
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/* Draw running messages */
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set_colors(win, 6, COLOR_YELLOW, COLOR_WHITE);
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message = messages[j = 0];
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i = 1;
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w = width - 2;
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strcpy(buffer, message);
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while (j < NMESSAGES) {
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while ((int) strlen(buffer) < w) {
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strcat(buffer, " ... ");
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strcat(buffer, messages[++j % NMESSAGES]);
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}
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if (i < w)
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mvwaddnstr(win, height / 2, w - i, buffer, i);
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else
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mvwaddnstr(win, height / 2, 1, buffer, w);
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wrefresh(win);
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nodelay(win, TRUE);
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if (wgetch(win) != ERR) {
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flushinp();
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break;
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}
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if (i++ >= w) {
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for (k = 0; (buffer[k] = buffer[k + 1]) != '\0'; k++) ;
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}
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delay_output(100);
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}
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j = 0;
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/* Draw running As across in RED */
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set_colors(win, 7, COLOR_RED, COLOR_GREEN);
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for (i = 2; i < width - 4; ++i) {
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k = mvwinch(win, 4, i);
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if (k == ERR)
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break;
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save[j++] = c = k;
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c &= A_CHARTEXT;
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mvwaddch(win, 4, i, c);
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}
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wrefresh(win);
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/* Put a message up wait for a key */
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i = height - 2;
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use_colors(win, 5, A_NORMAL);
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mvwaddstr(win, i, 5, " Type a key to continue or 'Q' to quit ");
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wrefresh(win);
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if (WaitForUser(win) == 1)
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break;
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j = 0; /* Restore the old line */
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for (i = 2; i < width - 4; ++i)
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mvwaddch(win, 4, i, save[j++]);
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wrefresh(win);
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BouncingBalls(win);
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/* Put a message up wait for a key */
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i = height - 2;
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use_colors(win, 5, A_NORMAL);
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mvwaddstr(win, i, 5, " Type a key to continue or 'Q' to quit ");
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wrefresh(win);
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if (WaitForUser(win) == 1)
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break;
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}
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endwin();
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return 0;
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}
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