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Code

sigwinch support for resizing. from pjanzen

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This commit is contained in:
tedu 2014-11-18 20:09:45 +00:00
parent 330d7c7d20
commit 1b2da9231e
1 changed files with 70 additions and 36 deletions
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106
games/grdc/grdc.c
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@ -1,4 +1,4 @@
/* $OpenBSD: grdc.c,v 1.17 2014/11/18 05:09:38 schwarze Exp $ */
/* $OpenBSD: grdc.c,v 1.18 2014/11/18 20:09:45 tedu Exp $ */
/*
*
* Copyright 2002 Amos Shapir. Public domain.
@ -12,6 +12,7 @@
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <curses.h>
#include <limits.h>
#include <signal.h>
@ -33,12 +34,13 @@ short disp[11] = {
long old[6], next[6], new[6], mask;
volatile sig_atomic_t sigtermed = 0;
volatile sig_atomic_t sigwinched = 0;
int hascolor = 0;
void set(int, int);
void standt(int);
void movto(int, int);
void getwinsize(int *, int *);
void usage(void);
void
@ -47,6 +49,12 @@ sighndl(int signo)
sigtermed=signo;
}
void
sigresize(int signo)
{
sigwinched = signo;
}
int
main(int argc, char *argv[])
{
@ -60,8 +68,9 @@ main(int argc, char *argv[])
long scroldelay = 50000000;
int xbase;
int ybase;
int wintoosmall;
scrol = 0;
scrol = wintoosmall = 0;
while ((i = getopt(argc, argv, "sh")) != -1)
switch (i) {
case 's':
@ -86,17 +95,12 @@ main(int argc, char *argv[])
}
initscr();
if (COLS < XLENGTH + 2 || LINES < YDEPTH + 2 ) {
endwin();
errx(1, "screen too small");
}
xbase = (COLS - XLENGTH) / 2;
ybase = (LINES - YDEPTH) / 2;
signal(SIGINT,sighndl);
signal(SIGTERM,sighndl);
signal(SIGHUP,sighndl);
signal(SIGWINCH, sigresize);
signal(SIGCONT, sigresize); /* for resizes during suspend */
cbreak();
noecho();
@ -112,30 +116,48 @@ main(int argc, char *argv[])
}
curs_set(0);
clear();
refresh();
if(hascolor) {
attrset(COLOR_PAIR(3));
sigwinched = 1; /* force initial sizing */
mvaddch(ybase - 1, xbase - 1, ACS_ULCORNER);
hline(ACS_HLINE, XLENGTH);
mvaddch(ybase - 1, xbase + XLENGTH, ACS_URCORNER);
mvaddch(ybase + YDEPTH, xbase - 1, ACS_LLCORNER);
hline(ACS_HLINE, XLENGTH);
mvaddch(ybase + YDEPTH, xbase + XLENGTH, ACS_LRCORNER);
move(ybase, xbase - 1);
vline(ACS_VLINE, YDEPTH);
move(ybase, xbase + XLENGTH);
vline(ACS_VLINE, YDEPTH);
attrset(COLOR_PAIR(2));
}
gettimeofday(&nowtv, NULL);
TIMEVAL_TO_TIMESPEC(&nowtv, &now);
do {
if (sigwinched) {
sigwinched = 0;
wintoosmall = 0;
getwinsize(&i, &j);
if (i >= XLENGTH + 2)
xbase = (i - XLENGTH) / 2;
else
wintoosmall = 1;
if (j >= YDEPTH + 2)
ybase = (j - YDEPTH) / 2;
else
wintoosmall = 1;
resizeterm(j, i);
clear();
refresh();
if (hascolor && !wintoosmall) {
attrset(COLOR_PAIR(3));
mvaddch(ybase - 1, xbase - 1, ACS_ULCORNER);
hline(ACS_HLINE, XLENGTH);
mvaddch(ybase - 1, xbase + XLENGTH, ACS_URCORNER);
mvaddch(ybase + YDEPTH, xbase - 1, ACS_LLCORNER);
hline(ACS_HLINE, XLENGTH);
mvaddch(ybase + YDEPTH, xbase + XLENGTH, ACS_LRCORNER);
move(ybase, xbase - 1);
vline(ACS_VLINE, YDEPTH);
move(ybase, xbase + XLENGTH);
vline(ACS_VLINE, YDEPTH);
attrset(COLOR_PAIR(2));
}
for (k = 0; k < 6; k++)
old[k] = 0;
}
mask = 0;
tm = localtime(&now.tv_sec);
set(tm->tm_sec%10, 0);
@ -146,7 +168,11 @@ main(int argc, char *argv[])
set(tm->tm_hour/10, 24);
set(10, 7);
set(10, 17);
for(k=0; k<6; k++) {
if (wintoosmall) {
move(0, 0);
printw("%02d:%02d:%02d", tm->tm_hour, tm->tm_min,
tm->tm_sec);
} else for (k = 0; k < 6; k++) {
if(scrol) {
for(i=0; i<5; i++)
new[i] = (new[i]&~mask) | (new[i+1]&mask);
@ -161,7 +187,7 @@ main(int argc, char *argv[])
for(j=0,t=1<<26; t; t>>=1,j++) {
if(a&t) {
if(!(a&(t<<1))) {
movto(ybase + i+1, xbase + 2*(j+1));
move(ybase + i+1, xbase + 2*(j+1));
}
addstr(" ");
}
@ -186,14 +212,14 @@ main(int argc, char *argv[])
nanosleep(&delay, NULL);
}
}
movto(6, 0);
move(6, 0);
refresh();
gettimeofday(&nowtv, NULL);
TIMEVAL_TO_TIMESPEC(&nowtv, &now);
delay.tv_sec = 0;
delay.tv_nsec = (1000000000 - now.tv_nsec);
/* want scrolling to END on the second */
if (scrol)
if (scrol && !wintoosmall)
delay.tv_nsec -= 5 * scroldelay;
nanosleep(&delay, NULL);
now.tv_sec++;
@ -247,9 +273,17 @@ standt(int on)
}
void
movto(int line, int col)
getwinsize(int *wid, int *ht)
{
move(line, col);
struct winsize size;
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) < 0) {
*wid = 80; /* Default */
*ht = 24;
} else {
*wid = size.ws_col;
*ht = size.ws_row;
}
}
void