1*a8453668SDavid du Colombier #include <u.h> 2*a8453668SDavid du Colombier #include <libc.h> 3*a8453668SDavid du Colombier #include <draw.h> 4*a8453668SDavid du Colombier 5*a8453668SDavid du Colombier int mousescrollsize(int maxlines)6*a8453668SDavid du Colombiermousescrollsize(int maxlines) 7*a8453668SDavid du Colombier { 8*a8453668SDavid du Colombier static int lines, pcnt; 9*a8453668SDavid du Colombier char *mss; 10*a8453668SDavid du Colombier 11*a8453668SDavid du Colombier if(lines == 0 && pcnt == 0){ 12*a8453668SDavid du Colombier mss = getenv("mousescrollsize"); 13*a8453668SDavid du Colombier if(mss){ 14*a8453668SDavid du Colombier if(strchr(mss, '%') != nil) 15*a8453668SDavid du Colombier pcnt = atof(mss); 16*a8453668SDavid du Colombier else 17*a8453668SDavid du Colombier lines = atoi(mss); 18*a8453668SDavid du Colombier free(mss); 19*a8453668SDavid du Colombier } 20*a8453668SDavid du Colombier if(lines == 0 && pcnt == 0) 21*a8453668SDavid du Colombier lines = 1; 22*a8453668SDavid du Colombier if(pcnt>=100) 23*a8453668SDavid du Colombier pcnt = 100; 24*a8453668SDavid du Colombier } 25*a8453668SDavid du Colombier 26*a8453668SDavid du Colombier if(lines) 27*a8453668SDavid du Colombier return lines; 28*a8453668SDavid du Colombier return pcnt * maxlines/100.0; 29*a8453668SDavid du Colombier } 30