alecs/plasma-framework
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* update the source (if appropriate) when query is called

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* use the source name for the destination of NullService; handy in debugging

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=856772
This commit is contained in:
Aaron J. Seigo 2008-09-03 18:52:23 +00:00
parent 6774525044
commit 456e81518e
1 changed files with 12 additions and 2 deletions
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14
dataengine.cpp
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@ -69,7 +69,7 @@ QStringList DataEngine::sources() const
Service* DataEngine::serviceForSource(const QString &source) Service* DataEngine::serviceForSource(const QString &source)
{ {
return new NullService(this); return new NullService(source, this);
} }
void DataEngine::connectSource(const QString& source, QObject* visualization, void DataEngine::connectSource(const QString& source, QObject* visualization,
@ -112,10 +112,16 @@ DataContainer* DataEngine::containerForSource(const QString &source)
DataEngine::Data DataEngine::query(const QString& source) const DataEngine::Data DataEngine::query(const QString& source) const
{ {
DataContainer* s = d->requestSource(source); bool newSource;
DataContainer* s = d->requestSource(source, &newSource);
if (!s) { if (!s) {
return DataEngine::Data(); return DataEngine::Data();
} else if (!newSource && d->minPollingInterval >= 0 &&
s->timeSinceLastUpdate() >= uint(d->minPollingInterval)) {
if (const_cast<DataEngine*>(this)->updateSourceEvent(source)) {
d->queueUpdate();
}
} }
DataEngine::Data data = s->data(); DataEngine::Data data = s->data();
@ -251,6 +257,10 @@ uint DataEngine::maxSourceCount() const
void DataEngine::setMinimumPollingInterval(int minimumMs) void DataEngine::setMinimumPollingInterval(int minimumMs)
{ {
if (minimumMs < 0) {
minimumMs = 0;
}
d->minPollingInterval = minimumMs; d->minPollingInterval = minimumMs;
} }