aclock-unix-aalib.c

   1 /*
   2  * aclock - ascii clock for UNIX Console
   3  *
   4  * Copyright (c) 2002 by Antoni Sawicki <as@tenoware.com>
   5  * Version 1.8 (unix-aalib); Dublin, June 2002
   6  *
   7  * Compile: gcc -O2 aclock-unix-aalib.c -o aclock -laa -lm
   8  *
   9  */
  10
  11 #include <stdlib.h>
  12 #include <unistd.h>
  13 #include <math.h>
  14 #include <time.h>
  15 #include <aalib.h>
  16
  17 aa_context *context;
  18
  19 void cls(int width, int height) {
  20         int x,y;
  21         for(x=0; x<=width; x++)
  22         for(y=0; y<=height; y++)
  23                 aa_putpixel(context, x+1, y+1, 0);
  24 }
  25
  26 void draw_circle(int hand_max, int sYcen, int sXcen, int FontHW){
  27         int x,y,r;
  28         int c;
  29
  30
  31         for(r=0;r<60;r++){
  32                 x=cos(r*M_PI/180*6)*hand_max*FontHW+sXcen;
  33                 y=sin(r*M_PI/180*6)*hand_max+sYcen;
  34                 switch (r) {
  35                         case 0:
  36                         case 5:
  37                         case 10:
  38                         case 15:
  39                         case 20:
  40                         case 25:
  41                         case 30:
  42                         case 35:
  43                         case 40:
  44                         case 45:
  45                         case 50:
  46                         case 55:
  47                                 c=255;
  48                                 break;
  49                         default:
  50                                 c=33;
  51                                 break;
  52                 }
  53                 aa_putpixel(context, x+1, y+1, c);
  54         }
  55 }
  56
  57 void draw_hand(int minute, int hlenght, int c, int sXcen, int sYcen, int FontHW){
  58         int x,y,n;
  59         float r=(minute-15)*(M_PI/180)*6;
  60
  61         for(n=1; n<hlenght; n++){
  62                 x=cos(r)*n*FontHW+sXcen;
  63                 y=sin(r)*n+sYcen;
  64                 aa_putpixel(context,x,y,c);
  65         }
  66 }
  67
  68
  69 int main(void){
  70         char INFO[]="Copyright (c) 2002 by Antek Sawicki <as@tenoware.com>\n"
  71                     "Version 1.4; Dublin, Apr 2002\n";
  72         char digital_time[15];
  73         int FontHW = 2;
  74         int sXmax, sYmax, smax, hand_max, sXcen, sYcen;
  75         time_t t;
  76         struct tm *ltime;
  77
  78         aa_recommendhidisplay("curses");
  79         aa_recommendlowdisplay("curses");
  80
  81         context = aa_autoinit(&aa_defparams);
  82
  83         if(context == NULL) {
  84                 fprintf(stderr,"Cannot initialize AA-lib. Giving up.\n");
  85                 exit(1);
  86         }
  87
  88         for(;;){
  89                 time(&t);
  90                 ltime=localtime(&t);
  91                 sXmax = aa_scrwidth(context) * 2 - 4;
  92                 sYmax = aa_scrheight(context) * 2 - 4;
  93
  94                 if(sXmax/2<=sYmax)
  95                         smax=sXmax/2;
  96                 else
  97                         smax=sYmax;
  98
  99                 hand_max = (smax/2)-1;
 100
 101                 sXcen = sXmax/2;
 102                 sYcen = sYmax/2;
 103
 104                 cls(sXmax,sYmax);
 105                 draw_circle(hand_max, sYcen, sXcen, FontHW);
 106
 107
 108                 draw_hand((ltime->tm_hour*5)+(ltime->tm_min/10), 2*hand_max/3, 255, sXcen, sYcen, FontHW);
 109                 draw_hand(ltime->tm_min, hand_max-2, 100, sXcen, sYcen, FontHW);
 110                 draw_hand(ltime->tm_sec, hand_max-2, 33, sXcen, sYcen, FontHW);
 111
 112                 aa_fastrender(context, 0, 0, sXmax, sYmax);
 113
 114                 aa_printf(context, sXmax/4-4, sYmax/8, AA_BOLD, ".:ACLOCK:.");
 115                 aa_printf(context, sXmax/4-4, sYmax/2.5, AA_NORMAL, "[%02d:%02d:%02d]",
 116                                         ltime->tm_hour, ltime->tm_min, ltime->tm_sec);
 117                 aa_flush(context);
 118                 sleep(1);
 119         }
 120         return 0;
 121 }