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/*
* newdemo.c - A demo program using PDCurses. The program illustrate
* the use of colours for text output.
*
* $Id: newdemo.c,v 1.25 2004/12/04 15:43:16 tom Exp $
*/
#include <time.h>
#include <test.priv.h>
#define delay_output(x) napms(x)
/*
* The Australian map
*/
static const char *AusMap[16] =
{
" A A ",
" N.T. AAAAA AAAA ",
" AAAAAAAAAAA AAAAAAAA ",
" AAAAAAAAAAAAAAAAAAAAAAAAA Qld.",
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
" AAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
" AAAAAAAAAAAAAAAAAAAAAAAAA N.S.W.",
"W.A. AAAAAAAAA AAAAAA Vic.",
" AAA S.A. AA",
" A Tas.",
""
};
/*
* Funny messages
*/
#define NMESSAGES 6
static NCURSES_CONST char *messages[] =
{
"Hello from the Land Down Under",
"The Land of crocs. and a big Red Rock",
"Where the sunflower runs along the highways",
"the dusty red roads lead one to loneliness",
"Blue sky in the morning and",
"freezing nights and twinkling stars",
""
};
/*
* Trap interrupt
*/
static RETSIGTYPE
trap(int sig GCC_UNUSED)
{
endwin();
ExitProgram(EXIT_FAILURE);
}
/*
* Wait for user
*/
static int
WaitForUser(WINDOW *win)
{
time_t t;
chtype key;
nodelay(win, TRUE);
t = time((time_t *) 0);
while (1) {
if ((int) (key = wgetch(win)) != ERR) {
if (key == 'q' || key == 'Q')
return 1;
else
return 0;
}
if (time((time_t *) 0) - t > 5)
return 0;
}
}
static void
set_colors(WINDOW *win, int pair, int foreground, int background)
{
if (has_colors()) {
if (pair > COLOR_PAIRS)
pair = COLOR_PAIRS;
init_pair(pair, foreground, background);
wattrset(win, COLOR_PAIR(pair));
}
}
static int
use_colors(WINDOW *win, int pair, int attrs)
{
if (has_colors()) {
if (pair > COLOR_PAIRS)
pair = COLOR_PAIRS;
attrs |= COLOR_PAIR(pair);
}
wattrset(win, attrs);
return attrs;
}
/*
* Test sub windows
*/
static int
SubWinTest(WINDOW *win)
{
int w, h, sw, sh, bx, by;
WINDOW *swin1, *swin2, *swin3;
getmaxyx(win, h, w);
getbegyx(win, by, bx);
sw = w / 3;
sh = h / 3;
if ((swin1 = subwin(win, sh, sw, by + 3, bx + 5)) == NULL)
return 1;
if ((swin2 = subwin(win, sh, sw, by + 4, bx + 8)) == NULL)
return 1;
if ((swin3 = subwin(win, sh, sw, by + 5, bx + 11)) == NULL)
return 1;
set_colors(swin1, 8, COLOR_RED, COLOR_BLUE);
werase(swin1);
mvwaddstr(swin1, 0, 3, "Sub-window 1");
wrefresh(swin1);
set_colors(swin2, 9, COLOR_CYAN, COLOR_MAGENTA);
werase(swin2);
mvwaddstr(swin2, 0, 3, "Sub-window 2");
wrefresh(swin2);
set_colors(swin3, 10, COLOR_YELLOW, COLOR_GREEN);
werase(swin3);
mvwaddstr(swin3, 0, 3, "Sub-window 3");
wrefresh(swin3);
delwin(swin1);
delwin(swin2);
delwin(swin3);
WaitForUser(win);
return 0;
}
static int
bounce(int n, int *dir, int len)
{
if (*dir > 0)
++n;
else
--n;
if (n <= 1 || n >= len - 2)
*dir = *dir ? 0 : 1;
return n;
}
/*
* Bouncing balls
*/
static int
BouncingBalls(WINDOW *win)
{
int w, h;
int x1, y1, xd1, yd1;
int x2, y2, xd2, yd2;
int x3, y3, xd3, yd3;
getmaxyx(win, h, w);
x1 = 2 + rand() % (w - 4);
y1 = 2 + rand() % (h - 4);
x2 = 2 + rand() % (w - 4);
y2 = 2 + rand() % (h - 4);
x3 = 2 + rand() % (w - 4);
y3 = 2 + rand() % (h - 4);
xd1 = 1;
yd1 = 1;
xd2 = 1;
yd2 = 0;
xd3 = 0;
yd3 = 1;
nodelay(win, TRUE);
while (wgetch(win) == ERR) {
x1 = bounce(x1, &xd1, w);
y1 = bounce(y1, &yd1, h);
x2 = bounce(x2, &xd2, w);
y2 = bounce(y2, &yd2, h);
x3 = bounce(x3, &xd3, w);
y3 = bounce(y3, &yd3, h);
set_colors(win, 11, COLOR_RED, COLOR_BLUE);
mvwaddch(win, y1, x1, 'O');
set_colors(win, 12, COLOR_BLUE, COLOR_RED);
mvwaddch(win, y2, x2, '*');
set_colors(win, 13, COLOR_YELLOW, COLOR_WHITE);
mvwaddch(win, y3, x3, '@');
wmove(win, 0, 0);
wrefresh(win);
delay_output(100);
}
return 0;
}
/*
* Main driver
*/
int
main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
{
WINDOW *win;
int w, x, y, i, j, k;
char buffer[200];
const char *message;
int width, height;
chtype save[80];
chtype c;
setlocale(LC_ALL, "");
initscr();
if (has_colors())
start_color();
cbreak();
curs_set(0);
signal(SIGINT, trap);
width = 48;
height = 14; /* Create a drawing window */
win = newwin(height, width, (LINES - height) / 2, (COLS - width) / 2);
if (win == NULL) {
endwin();
ExitProgram(EXIT_FAILURE);
}
while (1) {
set_colors(win, 1, COLOR_WHITE, COLOR_BLUE);
werase(win);
set_colors(win, 2, COLOR_RED, COLOR_RED);
box(win, ACS_VLINE, ACS_HLINE);
wrefresh(win);
/* Do ramdom output of a character */
use_colors(win, 1, A_NORMAL);
c = 'a';
for (i = 0; i < 5000; ++i) {
x = rand() % (width - 2) + 1;
y = rand() % (height - 2) + 1;
mvwaddch(win, y, x, c);
wrefresh(win);
nodelay(win, TRUE);
if (wgetch(win) != ERR)
break;
if (i == 2000) {
c = 'b';
set_colors(win, 3, COLOR_CYAN, COLOR_YELLOW);
}
}
SubWinTest(win);
/* Erase and draw green window */
set_colors(win, 4, COLOR_YELLOW, COLOR_GREEN);
wbkgd(win, use_colors(win, 4, A_BOLD));
werase(win);
wrefresh(win);
/* Draw RED bounding box */
use_colors(win, 2, A_NORMAL);
box(win, ' ', ' ');
wrefresh(win);
/* Display Australia map */
use_colors(win, 4, A_BOLD);
i = 0;
while (*AusMap[i]) {
mvwaddstr(win, i + 1, 8, AusMap[i]);
wrefresh(win);
delay_output(50);
++i;
}
set_colors(win, 5, COLOR_BLUE, COLOR_WHITE);
use_colors(win, 5, A_BLINK);
mvwaddstr(win, height - 2, 6, " PDCurses 2.1 for DOS, OS/2 and Unix");
wrefresh(win);
/* Draw running messages */
set_colors(win, 6, COLOR_YELLOW, COLOR_WHITE);
message = messages[j = 0];
i = 1;
w = width - 2;
strcpy(buffer, message);
while (j < NMESSAGES) {
while ((int) strlen(buffer) < w) {
strcat(buffer, " ... ");
strcat(buffer, messages[++j % NMESSAGES]);
}
if (i < w)
mvwaddnstr(win, height / 2, w - i, buffer, i);
else
mvwaddnstr(win, height / 2, 1, buffer, w);
wrefresh(win);
nodelay(win, TRUE);
if (wgetch(win) != ERR) {
flushinp();
break;
}
if (i++ >= w) {
for (k = 0; (buffer[k] = buffer[k + 1]) != '\0'; k++) ;
}
delay_output(100);
}
j = 0;
/* Draw running As across in RED */
set_colors(win, 7, COLOR_RED, COLOR_GREEN);
for (i = 2; i < width - 4; ++i) {
k = mvwinch(win, 4, i);
if (k == ERR)
break;
save[j++] = c = k;
c &= A_CHARTEXT;
mvwaddch(win, 4, i, c);
}
wrefresh(win);
/* Put a message up wait for a key */
i = height - 2;
use_colors(win, 5, A_NORMAL);
mvwaddstr(win, i, 5, " Type a key to continue or 'Q' to quit ");
wrefresh(win);
if (WaitForUser(win) == 1)
break;
j = 0; /* Restore the old line */
for (i = 2; i < width - 4; ++i)
mvwaddch(win, 4, i, save[j++]);
wrefresh(win);
BouncingBalls(win);
/* Put a message up wait for a key */
i = height - 2;
use_colors(win, 5, A_NORMAL);
mvwaddstr(win, i, 5, " Type a key to continue or 'Q' to quit ");
wrefresh(win);
if (WaitForUser(win) == 1)
break;
}
endwin();
ExitProgram(EXIT_SUCCESS);
}
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