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/*
* SPDX-FileCopyrightText: 2014 Nikita Skovoroda <chalkerx@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "powerdevilkeyboardbrightnesslogic.h"
#include "powerdevil_debug.h"
#include <QDebug>
namespace PowerDevil
{
int KeyboardBrightnessLogic::calculateSteps(int maxValue) const
{
// We assume that a generally good number of steps for keyboard brightness is about 5.
if (maxValue <= 7) {
// Too few steps, return the number of actual steps.
return maxValue;
}
if (maxValue % 5 == 0 || maxValue >= 80) {
// When there are more than 80 actual steps, 20%, 40%, 60%, and 80% are always displayed nicely.
return 5;
}
if (maxValue % 4 == 0)
return 4;
if (maxValue % 6 == 0)
return 6;
if (maxValue % 3 == 0)
return 3;
// 29 different maxValue values between 11 and 79 are left at this point.
// qCDebug(POWERDEVIL) << "maxValue" << maxValue;
// Give up and return 5, there is nothing much we can do here.
return 5;
}
}
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