plasma-framework/private/dataengine_p.h

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/*
* Copyright 2006-2007 Aaron Seigo <aseigo@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* This program 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 General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef DATAENGINE_P_H
#define DATAENGINE_P_H
#include <QQueue>
#include <QTime>
class QTime;
namespace Plasma
{
class DataEnginePrivate
{
public:
DataEnginePrivate(DataEngine* e, KService::Ptr service);
DataContainer* source(const QString& sourceName, bool createWhenMissing = true);
void connectSource(DataContainer* s, QObject* visualization, uint pollingInterval,
Plasma::IntervalAlignment align, bool immediateCall = true);
DataContainer* requestSource(const QString& sourceName, bool* newSource = 0);
void trimQueue();
void queueUpdate();
void internalUpdateSource(DataContainer*);
/**
* Reference counting method. Calling this method increases the count
* by one.
**/
void ref();
/**
* Reference counting method. Calling this method decreases the count
* by one.
**/
void deref();
/**
* Reference counting method. Used to determine if this DataEngine is
* used.
* @return true if the reference count is non-zero
**/
bool isUsed() const;
DataEngine* q;
int refCount;
int updateTimerId;
int minPollingInterval;
QTime updateTimestamp;
DataEngine::SourceDict sources;
QQueue<DataContainer*> sourceQueue;
QTimer* updateTimer;
QString icon;
uint limit;
bool valid;
DataEngineScript* script;
QString engineName;
Package *package;
};
} // Plasma namespace
#endif // multiple inclusion guard