plan9port

fork of plan9port with libvec, libstr and libsdb
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drawrepl.c (313B)

      1 #include <u.h>
      2 #include <libc.h>
      3 #include <draw.h>
      4 
      5 int
      6 drawreplxy(int min, int max, int x)
      7 {
      8 	int sx;
      9 
     10 	sx = (x-min)%(max-min);
     11 	if(sx < 0)
     12 		sx += max-min;
     13 	return sx+min;
     14 }
     15 
     16 Point
     17 drawrepl(Rectangle r, Point p)
     18 {
     19 	p.x = drawreplxy(r.min.x, r.max.x, p.x);
     20 	p.y = drawreplxy(r.min.y, r.max.y, p.y);
     21 	return p;
     22 }