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73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
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/* This file is part of the KDE project
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* Copyright (C) 2010 Lukas Tinkl <ltinkl@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License version 2 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef BACKLIGHTHELPER_H
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#define BACKLIGHTHELPER_H
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#include <QObject>
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#include <kauth.h>
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using namespace KAuth;
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class BacklightHelper: public QObject
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{
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Q_OBJECT
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public:
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BacklightHelper(QObject * parent = 0);
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public slots:
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ActionReply brightness(const QVariantMap & args);
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ActionReply setbrightness(const QVariantMap & args);
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ActionReply syspath(const QVariantMap & args);
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private:
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void init();
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/**
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* For older kernels that doesn't indicate which type the interface use we have
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* a whitelsit based on the feedback given by our users, if the interface is not
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* within our whitelist we will look for a random one within the backlight folder
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*/
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void initUsingWhitelist();
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/**
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* The kernel offer from version 2.6.37 the type of the interface, and based on that
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* we can decide which interface is better for us, being the order
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* firmware-platform-raw
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*/
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void initUsingBacklightType();
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/**
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* FreeBSD (and other BSDs) can control backlight via acpi_video(4)
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*/
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void initUsingSysctl();
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/**
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* If Kernel older than 2.6.37 use whitelsit, otherwise use backlight/type
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* @see https://bugs.kde.org/show_bug.cgi?id=288180
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*/
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bool useWhitelistInit();
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int maxBrightness() const;
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bool m_isSupported;
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QString m_dirname;
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QString m_sysctlDevice;
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QList<int> m_sysctlBrightnessLevels;
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};
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#endif // BACKLIGHTHELPER_H
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