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tdelibs/tdecore/tdehw/tdebacklightdevice.cpp

133 lines
4.1 KiB

/* This file is part of the TDE libraries
Copyright (C) 2012 Timothy Pearson <kb9vqf@pearsoncomputing.net>
(C) 2013 Golubev Alexander <fatzer2@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "tdebacklightdevice.h"
#include <unistd.h>
#include <tqfile.h>
#include "config.h"
// uPower
#if defined(WITH_TDEHWLIB_DAEMONS)
#include <tqdbusdata.h>
#include <tqdbusmessage.h>
#include <tqdbusproxy.h>
#include <tqdbusvariant.h>
#include <tqdbusconnection.h>
#endif // defined(WITH_TDEHWLIB_DAEMONS)
TDEBacklightDevice::TDEBacklightDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn) : TDEGenericDevice(dt, dn) {
}
TDEBacklightDevice::~TDEBacklightDevice() {
}
TDEDisplayPowerLevel::TDEDisplayPowerLevel TDEBacklightDevice::powerLevel() {
return m_powerLevel;
}
void TDEBacklightDevice::internalSetPowerLevel(TDEDisplayPowerLevel::TDEDisplayPowerLevel pl) {
m_powerLevel = pl;
}
void TDEBacklightDevice::internalSetMaximumRawBrightness(int br) {
m_maximumBrightness = br;
}
void TDEBacklightDevice::internalSetCurrentRawBrightness(int br) {
m_currentBrightness = br;
}
int TDEBacklightDevice::brightnessSteps() {
return m_maximumBrightness + 1;
}
double TDEBacklightDevice::brightnessPercent() {
return (((m_currentBrightness*1.0)/m_maximumBrightness)*100.0);
}
bool TDEBacklightDevice::canSetBrightness() {
TQString brightnessnode = systemPath() + "/brightness";
int rval = access (brightnessnode.ascii(), W_OK);
if (rval == 0) {
return true;
}
#ifdef WITH_TDEHWLIB_DAEMONS
{
TQT_DBusConnection dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
if (dbusConn.isConnected()) {
TQT_DBusProxy hardwareControl("org.trinitydesktop.hardwarecontrol", "/org/trinitydesktop/hardwarecontrol", "org.trinitydesktop.hardwarecontrol.Brightness", dbusConn);
if (hardwareControl.canSend()) {
// can set brightness?
TQValueList<TQT_DBusData> params;
params << TQT_DBusData::fromString(brightnessnode);
TQT_DBusMessage reply = hardwareControl.sendWithReply("CanSetBrightness", params);
if (reply.type() == TQT_DBusMessage::ReplyMessage && reply.count() == 1) {
return reply[0].toBool();
}
}
}
}
#endif // WITH_TDEHWLIB_DAEMONS
return false;
}
int TDEBacklightDevice::rawBrightness() {
return m_currentBrightness;
}
void TDEBacklightDevice::setRawBrightness(int br) {
bool setRawBrightnessDone = false;
TQString brightnessnode = systemPath() + "/brightness";
TQString brightnessCommand = TQString("%1").arg(br);
TQFile file( brightnessnode );
if ( file.open( IO_WriteOnly ) ) {
TQTextStream stream( &file );
stream << brightnessCommand;
file.close();
setRawBrightnessDone = true;
}
#ifdef WITH_TDEHWLIB_DAEMONS
if ( !setRawBrightnessDone ) {
TQT_DBusConnection dbusConn = TQT_DBusConnection::addConnection(TQT_DBusConnection::SystemBus);
if (dbusConn.isConnected()) {
TQT_DBusProxy hardwareControl("org.trinitydesktop.hardwarecontrol", "/org/trinitydesktop/hardwarecontrol", "org.trinitydesktop.hardwarecontrol.Brightness", dbusConn);
if (hardwareControl.canSend()) {
// set brightness
TQValueList<TQT_DBusData> params;
params << TQT_DBusData::fromString(brightnessnode) << TQT_DBusData::fromString(brightnessCommand);
TQT_DBusMessage reply = hardwareControl.sendWithReply("SetBrightness", params);
if (reply.type() == TQT_DBusMessage::ReplyMessage) {
setRawBrightnessDone = true;
}
}
}
}
#endif // WITH_TDEHWLIB_DAEMONS
}
#include "tdebacklightdevice.moc"