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nuttx-apps/examples/pdcurses/newdemo_main.c

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/****************************************************************************
* apps/examples/pdcurses/newdemo_main.c
* A demo program using PDCurses. The program illustrates the use of colors
* for text output.
* Hacks by jbuhler@cs.washington.edu on 12/29/96
* $Id: newdemo.c,v 1.39 2008/07/13 16:08:17 wmcbrine Exp $
*
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
* Adapted by: Gregory Nutt <gnutt@nuttx.org>
*
* Adapted from the original public domain pdcurses by Gregory Nutt and
* released as part of NuttX under the 3-clause BSD license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include "graphics/curses.h"
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static int wait_for_user(void);
static int subwin_test(WINDOW *);
static int bouncing_balls(WINDOW *);
/****************************************************************************
* Private Data
****************************************************************************/
/* An ASCII map of Australia */
static char *AusMap[17] =
{
" A ",
" AA AA ",
" N.T. AAAAA AAAA ",
" AAAAAAAAAAA AAAAAAAA ",
" AAAAAAAAAAAAAAAAAAAAAAAAA Qld.",
" AAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
" AAAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
" AAAAAAAAAAAAAAAAAAAAAAAAAAAA ",
" AAAAAAAAAAAAAAAAAAAAAAAAA N.S.W.",
"W.A. AAAAAAAAA AAAAAA Vic.",
" AAA S.A. AA",
" A Tas.",
""
};
/* Funny messages for the scroller */
static 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",
NULL
};
/****************************************************************************
* Private Functions
****************************************************************************/
static int wait_for_user(void)
{
chtype ch;
#ifdef CONFIG_PDCURSES_MULTITHREAD
FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
nodelay(stdscr, true);
halfdelay(50);
ch = getch();
nodelay(stdscr, false);
nocbreak(); /* Reset the halfdelay() value */
cbreak();
return (ch == '\033') ? ch : 0;
}
static int subwin_test(WINDOW *win)
{
WINDOW *swin1;
WINDOW *swin2;
WINDOW *swin3;
int w;
int h;
int sw;
int sh;
int bx;
int by;
wattrset(win, 0);
getmaxyx(win, h, w);
getbegyx(win, by, bx);
sw = w / 3;
sh = h / 3;
if ((swin1 = derwin(win, sh, sw, 3, 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;
}
init_pair(8, COLOR_RED, COLOR_BLUE);
wbkgd(swin1, COLOR_PAIR(8));
werase(swin1);
mvwaddstr(swin1, 0, 3, "Sub-window 1");
wrefresh(swin1);
init_pair(9, COLOR_CYAN, COLOR_MAGENTA);
wbkgd(swin2, COLOR_PAIR(9));
werase(swin2);
mvwaddstr(swin2, 0, 3, "Sub-window 2");
wrefresh(swin2);
init_pair(10, COLOR_YELLOW, COLOR_GREEN);
wbkgd(swin3, COLOR_PAIR(10));
werase(swin3);
mvwaddstr(swin3, 0, 3, "Sub-window 3");
wrefresh(swin3);
delwin(swin1);
delwin(swin2);
delwin(swin3);
wait_for_user();
return 0;
}
static int bouncing_balls(WINDOW *win)
{
chtype c1;
chtype c2;
chtype c3;
chtype ball1;
chtype ball2;
chtype ball3;
int w;
int h;
int x1;
int y1;
int xd1;
int yd1;
int x2;
int y2;
int xd2;
int yd2;
int x3;
int y3;
int xd3;
int yd3;
int c;
#ifdef CONFIG_PDCURSES_MULTITHREAD
FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
curs_set(0);
wbkgd(win, COLOR_PAIR(1));
wrefresh(win);
wattrset(win, 0);
init_pair(11, COLOR_RED, COLOR_GREEN);
init_pair(12, COLOR_BLUE, COLOR_RED);
init_pair(13, COLOR_YELLOW, COLOR_WHITE);
ball1 = 'O' | COLOR_PAIR(11);
ball2 = '*' | COLOR_PAIR(12);
ball3 = '@' | COLOR_PAIR(13);
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 = -1;
xd3 = -1;
yd3 = 1;
nodelay(stdscr, true);
while ((c = getch()) == ERR)
{
x1 += xd1;
if (x1 <= 1 || x1 >= w - 2)
{
xd1 *= -1;
}
y1 += yd1;
if (y1 <= 1 || y1 >= h - 2)
{
yd1 *= -1;
}
x2 += xd2;
if (x2 <= 1 || x2 >= w - 2)
{
xd2 *= -1;
}
y2 += yd2;
if (y2 <= 1 || y2 >= h - 2)
{
yd2 *= -1;
}
x3 += xd3;
if (x3 <= 1 || x3 >= w - 2)
{
xd3 *= -1;
}
y3 += yd3;
if (y3 <= 1 || y3 >= h - 2)
{
yd3 *= -1;
}
c1 = mvwinch(win, y1, x1);
c2 = mvwinch(win, y2, x2);
c3 = mvwinch(win, y3, x3);
mvwaddch(win, y1, x1, ball1);
mvwaddch(win, y2, x2, ball2);
mvwaddch(win, y3, x3, ball3);
wmove(win, 0, 0);
wrefresh(win);
mvwaddch(win, y1, x1, c1);
mvwaddch(win, y2, x2, c2);
mvwaddch(win, y3, x3, c3);
napms(150);
}
nodelay(stdscr, false);
ungetch(c);
return 0;
}
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, FAR char *argv[])
{
WINDOW *win;
chtype save[80];
chtype ch;
int width;
int height;
int w;
int x;
int y;
int i;
int j;
int seed;
#ifdef CONFIG_PDCURSES_MULTITHREAD
FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
traceon();
initscr();
seed = time((time_t *) 0);
srand(seed);
start_color();
#if defined(NCURSES_VERSION) || (defined(PDC_BUILD) && PDC_BUILD > 3000)
use_default_colors();
#endif
cbreak();
noecho();
curs_set(0);
noecho();
/* Refresh stdscr so that reading from it will not cause it to overwrite the
* other windows that are being created.
*/
refresh();
/* Create a drawing window */
width = 48;
height = 15;
win = newwin(height, width, (LINES - height) / 2, (COLS - width) / 2);
if (win == NULL)
{
endwin();
return 1;
}
for (;;)
{
init_pair(1, COLOR_WHITE, COLOR_BLUE);
wbkgd(win, COLOR_PAIR(1));
werase(win);
init_pair(2, COLOR_RED, COLOR_RED);
wattrset(win, COLOR_PAIR(2));
box(win, ' ', ' ');
wrefresh(win);
wattrset(win, 0);
/* Do random output of a character */
ch = 'a';
nodelay(stdscr, true);
for (i = 0; i < 5000; ++i)
{
x = rand() % (width - 2) + 1;
y = rand() % (height - 2) + 1;
mvwaddch(win, y, x, ch);
wrefresh(win);
if (getch() != ERR)
{
break;
}
if (i == 2000)
{
ch = 'b';
init_pair(3, COLOR_CYAN, COLOR_YELLOW);
wattrset(win, COLOR_PAIR(3));
}
}
nodelay(stdscr, false);
subwin_test(win);
/* Erase and draw green window */
init_pair(4, COLOR_YELLOW, COLOR_GREEN);
wbkgd(win, COLOR_PAIR(4));
wattrset(win, A_BOLD);
werase(win);
wrefresh(win);
/* Draw RED bounding box */
wattrset(win, COLOR_PAIR(2));
box(win, ' ', ' ');
wrefresh(win);
/* Display Australia map */
wattrset(win, A_BOLD);
i = 0;
while (*AusMap[i])
{
mvwaddstr(win, i + 1, 8, AusMap[i]);
wrefresh(win);
napms(100);
++i;
}
init_pair(5, COLOR_BLUE, COLOR_WHITE);
wattrset(win, COLOR_PAIR(5) | A_BLINK);
mvwaddstr(win, height - 2, 3,
" PDCurses 3.4 - DOS, OS/2, Win32, X11, SDL");
wrefresh(win);
/* Draw running messages */
init_pair(6, COLOR_BLACK, COLOR_WHITE);
wattrset(win, COLOR_PAIR(6));
w = width - 2;
nodelay(win, true);
/* jbuhler's re-hacked scrolling messages */
for (j = 0; messages[j] != NULL; j++)
{
char *message = messages[j];
int msg_len = strlen(message);
int scroll_len = w + 2 * msg_len;
char *scrollbuf = malloc(scroll_len);
char *visbuf = scrollbuf + msg_len;
int stop = 0;
for (i = w + msg_len; i > 0; i--)
{
memset(visbuf, ' ', w);
strncpy(scrollbuf + i, message, msg_len);
mvwaddnstr(win, height / 2, 1, visbuf, w);
wrefresh(win);
if (wgetch(win) != ERR)
{
flushinp();
stop = 1;
break;
}
napms(100);
}
free(scrollbuf);
if (stop)
{
break;
}
}
j = 0;
/* Draw running 'A's across in RED */
init_pair(7, COLOR_RED, COLOR_GREEN);
wattron(win, COLOR_PAIR(7));
for (i = 2; i < width - 4; ++i)
{
ch = mvwinch(win, 5, i);
save[j++] = ch;
ch = ch & 0x7f;
mvwaddch(win, 5, i, ch);
}
wrefresh(win);
/* Put a message up; wait for a key */
i = height - 2;
wattrset(win, COLOR_PAIR(5));
mvwaddstr(win, i, 3, " Type a key to continue or ESC to quit ");
wrefresh(win);
if (wait_for_user() == '\033')
{
break;
}
/* Restore the old line */
wattrset(win, 0);
for (i = 2, j = 0; i < width - 4; ++i)
{
mvwaddch(win, 5, i, save[j++]);
}
wrefresh(win);
bouncing_balls(win);
/* bouncing_balls() leaves a keystroke in the queue */
if (wait_for_user() == '\033')
{
break;
}
}
endwin();
return 0;
}
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