1 fa009f9d 2004-06-11 devnull #include <u.h>
 2 fa009f9d 2004-06-11 devnull #include <libc.h>
 3 fa009f9d 2004-06-11 devnull #include <draw.h>
 4 fa009f9d 2004-06-11 devnull 
 5 fa009f9d 2004-06-11 devnull int
 6 fa009f9d 2004-06-11 devnull mousescrollsize(int maxlines)
 7 fa009f9d 2004-06-11 devnull {
 8 fa009f9d 2004-06-11 devnull 	static int lines, pcnt;
 9 fa009f9d 2004-06-11 devnull 	char *mss;
10 fa009f9d 2004-06-11 devnull 
11 fa009f9d 2004-06-11 devnull 	if(lines == 0 && pcnt == 0){
12 fa009f9d 2004-06-11 devnull 		mss = getenv("mousescrollsize");
13 fa009f9d 2004-06-11 devnull 		if(mss){
14 fa009f9d 2004-06-11 devnull 			if(strchr(mss, '%') != nil)
15 fa009f9d 2004-06-11 devnull 				pcnt = atof(mss);
16 fa009f9d 2004-06-11 devnull 			else
17 fa009f9d 2004-06-11 devnull 				lines = atoi(mss);
18 fa009f9d 2004-06-11 devnull 			free(mss);
19 fa009f9d 2004-06-11 devnull 		}
20 fa009f9d 2004-06-11 devnull 		if(lines == 0 && pcnt == 0)
21 fa009f9d 2004-06-11 devnull 			lines = 1;
22 fa009f9d 2004-06-11 devnull 		if(pcnt>=100)
23 fa009f9d 2004-06-11 devnull 			pcnt = 100;
24 fa009f9d 2004-06-11 devnull 	}
25 fa009f9d 2004-06-11 devnull 
26 fa009f9d 2004-06-11 devnull 	if(lines)
27 fa009f9d 2004-06-11 devnull 		return lines;
28 fa325e9b 2020-01-10 cross 	return pcnt * maxlines/100.0;
29 fa009f9d 2004-06-11 devnull }