f7926454e
 김태훈
자동 밝기 조절 기능 추가
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#include "backlight.h"
#include "system.h"
namespace {
int setting = 7;
bool lowered = false;
}
void Backlight::lower()
{
lowered = true;
int t = setting - 2;
if (t < 0)
System::setBacklight(0);
else
System::setBacklight(t);
}
void Backlight::restore()
{
lowered = false;
System::setBacklight(setting);
}
void Backlight::set(int level)
{
if (level < 0 || level > 7)
return;
setting = level;
if (lowered)
lower();
else
restore();
}
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