40 lines
877 B
C
40 lines
877 B
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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#include <u.h>
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#include <lib9.h>
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#include <envvars.h>
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#include <draw.h>
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int
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mousescrollsize(int maxlines)
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{
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static int lines, pcnt;
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char *mss;
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if(lines == 0 && pcnt == 0){
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mss = getenv("mousescrollsize");
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if(mss){
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if(strchr(mss, '%') != nil)
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pcnt = atof(mss);
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else
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lines = atoi(mss);
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free(mss);
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}
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if(lines == 0 && pcnt == 0)
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lines = 1;
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if(pcnt>=100)
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pcnt = 100;
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}
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if(lines)
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return lines;
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return pcnt * maxlines/100.0;
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}
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