121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
/*
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* Copyright 2006-2007 Aaron Seigo <aseigo@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 Library General Public License as
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* published by the Free Software Foundation; either version 2, 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 Library General Public
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* License 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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#ifndef PLASMA_DATACONTAINER_P_H
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#define PLASMA_DATACONTAINER_P_H
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#include "servicejob.h"
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#include "storage_p.h"
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#include <QtCore/QTimerEvent>
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#include <QtCore/QTime>
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#include <QtCore/QBasicTimer>
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class QTimer;
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namespace Plasma
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{
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class ServiceJob;
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class SignalRelay;
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class DataContainerPrivate
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{
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public:
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DataContainerPrivate(DataContainer *container)
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: q(container),
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storage(NULL),
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storageCount(0),
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dirty(false),
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cached(false),
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enableStorage(false),
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isStored(true)
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{
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}
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SignalRelay *signalRelay(const DataContainer *dc, QObject *visualization,
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uint pollingInterval, Plasma::IntervalAlignment align,
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bool immediateUpdate);
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bool hasUpdates();
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/**
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* Deletes the store member of DataContainerPrivate if
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* there are no more references to it.
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*/
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void storeJobFinished(KJob *job);
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/**
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* Does the work of putting the data from disk into the DataContainer
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* after retrieve() sets it up.
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*/
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void populateFromStoredData(KJob *job);
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void store();
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void retrieve();
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DataContainer *q;
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DataEngine::Data data;
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QMap<QObject *, SignalRelay *> relayObjects;
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QMap<uint, SignalRelay *> relays;
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QTime updateTs;
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Storage* storage;
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QBasicTimer storageTimer;
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QBasicTimer checkUsageTimer;
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int storageCount;
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bool dirty : 1;
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bool cached : 1;
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bool enableStorage : 1;
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bool isStored : 1;
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};
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class SignalRelay : public QObject
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{
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Q_OBJECT
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public:
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SignalRelay(DataContainer *parent, DataContainerPrivate *data,
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uint ival, Plasma::IntervalAlignment align, bool immediateUpdate);
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int receiverCount() const;
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bool isUnused() const;
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void checkAlignment();
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void checkQueueing();
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void forceImmediateUpdate();
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DataContainer *dc;
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DataContainerPrivate *d;
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uint m_interval;
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Plasma::IntervalAlignment m_align;
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int m_timerId;
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bool m_resetTimer;
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bool m_queued;
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signals:
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void dataUpdated(const QString &, const Plasma::DataEngine::Data &);
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protected:
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void timerEvent(QTimerEvent *event);
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};
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} // Plasma namespace
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#endif // multiple inclusion guard
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