/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <draw.h> intmousescrollsize(int maxlines){	static int lines, pcnt;	char *mss; 	if(lines == 0 && pcnt == 0){		mss = getenv("mousescrollsize");		if(mss){			if(strchr(mss, '%') != nil)				pcnt = atof(mss);			else				lines = atoi(mss);			free(mss);		}		if(lines == 0 && pcnt == 0)			lines = 1;		if(pcnt>=100)			pcnt = 100;	} 	if(lines)		return lines;	return pcnt * maxlines/100.0;	}