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121 lines
3.7 KiB
C++
121 lines
3.7 KiB
C++
/***************************************************************************
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* Copyright (C) 2010 by Dario Freddi <drf@kde.org> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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 *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
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***************************************************************************/
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#include "dimdisplay.h"
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#include <powerdevilbackendinterface.h>
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#include <KConfigGroup>
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#include <KLocalizedString>
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#include <KDebug>
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namespace PowerDevil {
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namespace BundledActions {
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DimDisplay::DimDisplay(QObject* parent)
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: Action(parent), m_dimmed(false)
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{
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setRequiredPolicies(PowerDevil::PolicyAgent::ChangeScreenSettings);
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}
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DimDisplay::~DimDisplay()
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{
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}
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void DimDisplay::onProfileUnload()
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{
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}
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void DimDisplay::onWakeupFromIdle()
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{
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if (!m_dimmed) {
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return;
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}
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setBrightnessHelper(m_oldBrightness);
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m_dimmed = false;
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}
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void DimDisplay::onIdleTimeout(int msec)
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{
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if (qFuzzyIsNull(backend()->brightness())) {
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//Some drivers report brightness == 0 when display is off because of DPMS
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//(especially Intel driver). Don't change brightness in this case, or
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//backlight won't switch on later.
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//Furthermore, we can't dim if brightness is 0 already.
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return;
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}
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if (msec == m_dimOnIdleTime) {
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setBrightnessHelper(0);
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} else if (msec == (m_dimOnIdleTime * 3 / 4)) {
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float newBrightness = backend()->brightness() / 4;
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setBrightnessHelper(newBrightness);
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} else if (msec == (m_dimOnIdleTime * 1 / 2)) {
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m_oldBrightness = backend()->brightness();
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float newBrightness = backend()->brightness() / 2;
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setBrightnessHelper(newBrightness);
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}
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m_dimmed = true;
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}
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void DimDisplay::onProfileLoad()
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{
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//
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}
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void DimDisplay::setBrightnessHelper(float brightness)
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{
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QVariantMap args;
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args["_BrightnessValue"] = QVariant::fromValue(brightness);
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trigger(args);
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}
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void DimDisplay::triggerImpl(const QVariantMap& args)
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{
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backend()->setBrightness(args["_BrightnessValue"].toFloat());
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}
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bool DimDisplay::isSupported()
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{
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BackendInterface::BrightnessControlsList controls = backend()->brightnessControlsAvailable();
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if (controls.key(BackendInterface::Screen).isEmpty()) {
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return false;
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}
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return true;
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}
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bool DimDisplay::loadAction(const KConfigGroup& config)
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{
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kDebug();
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if (config.hasKey("idleTime")) {
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m_dimOnIdleTime = config.readEntry<int>("idleTime", 10000000);
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kDebug() << "Loading timeouts with " << m_dimOnIdleTime;
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registerIdleTimeout(m_dimOnIdleTime * 3 / 4);
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registerIdleTimeout(m_dimOnIdleTime / 2);
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registerIdleTimeout(m_dimOnIdleTime);
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}
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return true;
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}
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}
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}
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