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95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
/*
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This file is part of KDE.
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Copyright (c) 2009 Eckhart Wörner <ewoerner@kde.org>
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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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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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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 Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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USA.
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*/
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#include "sourcewatchlist.h"
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using namespace Plasma;
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SourceWatchList::SourceWatchList(DataEngine* engine, QObject* parent)
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: QObject(parent),
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m_engine(engine),
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m_updateInterval(0)
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{
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}
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bool SourceWatchList::contains(const QString& key) const
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{
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return m_data.contains(key);
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}
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QString SourceWatchList::query() const
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{
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return m_query;
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}
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void SourceWatchList::setQuery(const QString& query)
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{
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if (query != m_query) {
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if (!m_query.isEmpty()) {
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m_engine->disconnectSource(m_query, this);
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}
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dataUpdated(m_query, DataEngine::Data());
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m_query = query;
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if (!m_query.isEmpty()) {
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m_engine->connectSource(m_query, this, m_updateInterval);
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}
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}
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}
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void SourceWatchList::setUpdateInterval(uint updateInterval)
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{
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m_updateInterval = updateInterval;
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if (!m_query.isEmpty()) {
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m_engine->connectSource(m_query, this, m_updateInterval);
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}
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}
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QVariant SourceWatchList::value(const QString& id) const
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{
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return m_data.value(id);
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}
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void SourceWatchList::dataUpdated(const QString& source, const Plasma::DataEngine::Data& data)
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{
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Q_UNUSED(source)
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const QSet<QString> oldKeys = QSet<QString>::fromList(m_data.keys());
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const QSet<QString> newKeys = QSet<QString>::fromList(data.keys());
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m_data = data;
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QSet<QString> addedKeys = QSet<QString>(newKeys).subtract(oldKeys);
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QSet<QString> removedKeys = QSet<QString>(oldKeys).subtract(newKeys);
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if (!removedKeys.isEmpty()) {
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emit keysRemoved(removedKeys);
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}
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if (!addedKeys.isEmpty()) {
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emit keysAdded(addedKeys);
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}
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}
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#include "sourcewatchlist.moc"
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