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128 lines
2.7 KiB
128 lines
2.7 KiB
15 years ago
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/*
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This file is part of the KDE project
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Copyright (c) 2003 George Staikos <staikos@kde.org>
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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 as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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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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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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#include "pb_monitor.h"
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#include <sys/types.h>
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#include <unistd.h>
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#include <kgenericfactory.h>
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extern "C" {
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#include <pbbipc.h>
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}
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namespace KMilo {
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PowerBookMonitor::PowerBookMonitor(QObject *parent, const char *name, const QStringList& args)
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: Monitor(parent, name, args) {
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_serverPort = -1;
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_clientPort = -1;
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_progress = 0;
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}
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PowerBookMonitor::~PowerBookMonitor() {
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struct pbb_message msg;
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if (_serverPort >= 0) {
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msg.code = UNREGISTERCLIENT;
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msg.value = _clientPort;
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put_message(_serverPort, &msg);
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}
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if (_clientPort >= 0) {
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remove_msgport(_clientPort);
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}
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}
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bool PowerBookMonitor::init() {
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_serverPort = find_msgport(SERVERPORTKEY);
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if (_serverPort < 0) {
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return false;
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}
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_clientPort = create_msgport(getpid());
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if (_clientPort < 0) {
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_serverPort = -1;
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return false;
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}
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// Register
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struct pbb_message msg;
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msg.code = REGISTERCLIENT;
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msg.value = _clientPort;
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if (put_message(_serverPort, &msg) < 0) {
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remove_msgport(_clientPort);
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_clientPort = -1;
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_serverPort = -1;
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return false;
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}
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return true;
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}
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Monitor::DisplayType PowerBookMonitor::poll() {
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Monitor::DisplayType rc = None;
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struct pbb_message msg;
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if (_serverPort < 0 || _clientPort < 0)
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return Error;
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// Drain the queue, send the last message
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while (0 == get_message(_clientPort, 0, &msg)) {
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switch (msg.code) {
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case DISPLAYVOLUME:
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rc = Monitor::Volume;
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_progress = msg.value;
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break;
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case DISPLAYMUTE:
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rc = Monitor::Mute;
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_progress = msg.value;
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break;
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case DISPLAYBRIGHTNESS:
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rc = Monitor::Brightness;
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_progress = msg.value*100/15;
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break;
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case REGFAILED:
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case CLIENTEXIT:
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rc = Monitor::Error;
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break;
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default:
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break;
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}
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}
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return rc;
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}
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int PowerBookMonitor::progress() const {
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return _progress;
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}
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};
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K_EXPORT_COMPONENT_FACTORY(kmilo_powerbook, KGenericFactory<PowerBookMonitor>("kmilo_powerbook"))
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