seth@miro.Berkeley.EDU (Seth Teller) (11/21/90)
In article <1990Nov19.171917.15946@relay.wpd.sgi.com> schuman@sgi.com (Aaron Schuman) writes: >Dan> Is there a simple way to bump the calendar program >Dan> at night so that is shows the correct day if you >Dan> leave it running overnight ? > >I use this easy shell script (kept in ~/bin/cal_update): > > >kill `ps -ef | grep ical | grep -v ep | awk '{print $2}'` >/usr/sbin/ical >echo "sh /usr/people/schuman/bin/cal_update" | at 0500 tomorrow here's another approach. below is a hacked version of ical that a) keeps correct time as long as it gets timer events (days, weeks, etc.), and b) has a nifty sun & moon that rise and set at 6am and 6pm. i can't remember if a) was added by paul or me. if it works, thank him. if it's broken, complaints to me i suppose (or fix it yourself). if any astronomer types make the program faithful to reality, please share your efforts with us. finally, note the hack in the first 7 lines of the c file: save it as ical.c, and source it (or chmod it and execute it)... and it will compile itself with no Makefile. yours, seth teller #cut here, do not include this line #ifdef EXECUTABLE set verbose cc -o ical ical.c -I/usr/include/gl -lgl_s -lm unset verbose exit cc -o ical ical.c -I/usr/include/gl -lgl_s -lgutil -lm #endif EXECUTABLE /* to compile this, make .c file executable and type 'source ical.c' */ /* * ical - * A very simple desk calendar. Use the left and middle mouse * mouse buttons to go forward and backward in time. * * Paul Haeberli - 1985 * * modified to add alpha clock in lrh corner, yellow sun, blue moon... * * Seth Teller - 1989 */ #include "gl.h" #include "device.h" #include "math.h" #include <time.h> #define rgb(r,g,b) cpack(((unsigned char)(b * 255.0) << 16) | ((unsigned char)(g * 255.0) << 8) | ((unsigned char)(r * 255.0) << 0)) #define grey(i) cpack(((unsigned char)(i * 255.0) << 16) | ((unsigned char)(i * 255.0) << 8) | ((unsigned char)(i * 255.0) << 0)) #define PI (3.1415926) char *monthnames[]= { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December", }; char *daynames[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; char monlength[] = { 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, }; struct caltime { int second; int minute; int hour; int day; int month; int year; }; struct caltime today = { -1, -1, -1, -1, -1, -1 }, show; long toffset; void update_time (show, today) struct caltime *show, *today; { static long lasttime, thetime, lastreq; static float correction = 1.0; static struct tm *tm; int samemonth; samemonth = ((today->year == show->year) && (today->month == show->month)); lasttime = thetime; thetime = time(0) + toffset; tm = localtime(&thetime); today->second = tm->tm_sec; if (today->minute != tm->tm_min) { today->minute = tm->tm_min; qenter (REDRAW); } today->hour = tm->tm_hour; today->year = tm->tm_year + 1900; today->month = tm->tm_mon + 1; if ((today->day = tm->tm_mday) == 1 && samemonth) { show->month = today->month; show->year = today->year; } if (lastreq && thetime - lasttime >= 30 && !toffset) correction = (lastreq / 60.0) / (thetime - lasttime); lastreq = (int)(20 + 60 * (60 - today->second) * correction); if (!toffset) noise (TIMER0, lastreq); else noise (TIMER0, 3600); } main(argc, argv) char *argv[]; { short val; prefsize(260,185); winopen("cal"); if (getplanes() > 8) doublebuffer(); RGBmode(); gconfig(); qdevice(REDRAW); qdevice(LEFTMOUSE); qdevice(MIDDLEMOUSE); qdevice(TIMER0); qdevice(BKEY); qdevice(FKEY); qdevice(RKEY); update_time(&show, &today); if (argc >= 2) { show.month = atoi(argv[1]); show.year = atoi(argv[2]); show.day = 1; } else show = today; while (1) { switch (qread(&val)) { case BKEY : if (val) { toffset -= 2 * 60; /* 2 minutes */ update_time(&show, &today); } break; case FKEY : if (val) { toffset += 2 * 60; /* 2 minutes */ update_time(&show, &today); } break; case RKEY : if (val) { toffset = 0; update_time(&show, &today); } break; case LEFTMOUSE : if (val) { show.month--; if (show.month == 0) { show.year--; show.month = 12; } drawcal(&show, &today); } break; case MIDDLEMOUSE : if (val) { show.month++; if (show.month == 13) { show.year++; show.month = 1; } drawcal(&show, &today); } break; case REDRAW : drawcal(&show, &today); break; case TIMER0 : update_time(&show, &today); break; default: break; } } } int drawcal(show, today) struct caltime *show, *today; { register i; int c; int ycoord; int samemonth; char tempstr[30]; reshapeviewport(); gsync(); samemonth = ((today->year == show->year) && (today->month == show->month)); grey(0.8); clear(); grey(0.0); { /* draw in the sun and the moon */ /* sun as yellow circle, moon as blue crescent */ static short left, right, bottom, top; int sunx, suny, moonx, moony; float sung; /* green comp */ if (left == right) getscrmask (&left, &right, &bottom, &top); /* scr mask to clip to top half of screen */ scrmask (left, right, bottom + (top - bottom) / 2 + 8, top); /* draw sun */ sunx = 130.0 - (60.0 * sin (2.0 * PI * ((today->hour / 24.0) + today->minute/(60.0 * 24.0)))); suny = 98.0 - (60.0 * cos (2.0 * PI * ((today->hour / 24.0) + today->minute/(60.0 * 24.0)))); if (suny < 118.0 && suny >= 98.0) sung = (12.8 * (suny - 98.0)) / 255.0; else if (suny < 98.0 && suny >= 78.0) sung = 0.0; else sung = 1.0; rgb (1.0, sung, 0.0); circf (sunx, suny, 20.0); /* scr mask to clip to bottom half of screen */ scrmask (left, right, bottom, bottom + (top - bottom) / 2 - 1 + 8); rgb (0.0, 0.0, 1.0); circfi ((int)sunx, (int)suny, 20); grey (0.8); circfi ((int)sunx - 10, (int)suny, 20); /* scr mask back to normal */ scrmask (left, right, bottom, top); rgb(0.0, 1.0, 0.0); move2i(20,99); draw2i(240,99); } grey(0.5); move2i(20,163); draw2i(240,163); rgb(0.0,0.0,1.0); cmov2i(20,165); charstr(monthnames[show->month-1]); rgb(1.0,0.0,0.0); sprintf(tempstr,"%u",show->year); cmov2i(208,165); charstr(tempstr); rgb(0.5, 0.5, 0.5); move2i(20,143); draw2i(240,143); grey(0.0); for (i=0; i<7; i++){ cmov2i(24+32*i,145); charstr(daynames[i]); } c = dayofweek(show->month, show->year); ycoord = 125; for (i=1; i<=monlength[show->month]; i++) { cmov2i(24+32*c,ycoord); sprintf(tempstr,"%2d",i); if ((i == /*show*/today->day) && samemonth) rgb(1.0,0.0,0.0); charstr(tempstr); if ((i == /*show*/today->day) && samemonth) grey(0.0); if (++c == 7) { c = 0; ycoord -= 20; } } rgb(0.0,0.0,1.0); cmov2i(176, 10); sprintf(tempstr,"%2d:%02d %cm", (today->hour - 1 + 12) % 12 + 1, today->minute, today->hour > 11 ? 'p' : 'a'); charstr(tempstr); swapbuffers(); } dayofweek(m, y) { register d, i; d = jan1(y); if (((jan1(y+1)+7-d)%7) == 1) monlength[2] = 28; else monlength[2] = 29; for (i=1; i<m; i++) d += monlength[i]; return d%7; } /* * return day of the week * of jan 1 of given year */ jan1(y) int y; { register int d; d = y+4+(y+3)/4; if (y > 1752) { d += 3; if (y > 1800) { d -= (y-1701)/100; d += (y-1601)/400; } } return d%7; }
SOFPJF@VM.UOGUELPH.CA (Peter Jaspers-Fayer) (11/23/90)
My mail to Seth bounced. Sorry all.
Seth. Thanks for ical. Thanks for the "hack" to allow self-compiling
C programs (I love it). The big square clock flickers annoyingly, so
having the small time printed on the calendar is ideal. However,
I get a nastygram:
ERROR #98 gconfig: not enough bitplanes for RGBmode.: ERR_INVAIDMODE
(*sigh* I've only got 8). And my sun is white (not yellow). Can anyone
tell me what to patch? I suspect it's these 2 lines. How do I tell
the system what kind of graphics board I have? Man pages are no help.
RGBmode();
gconfig();
glear(1) causes my system to complain too. SGI says that it's because
it's not checking properly to see what kind of graphics board I have.
Maybe I should just upgrade :-)
/PJ SofPJF@VM.UoGuelph.Ca
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It is impossible to make anything foolproof because fools are so ingenious.