alecs/plasma-framework
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only invoke the method manually if the source is pre-existing.

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svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=733714
This commit is contained in:
Aaron J. Seigo 2007-11-07 06:10:57 +00:00
parent 3d3beac449
commit 28bde9f027
1 changed files with 18 additions and 7 deletions
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25
dataengine.cpp
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@ -87,7 +87,8 @@ class DataEngine::Private
return s;
}
void connectSource(DataContainer* s, QObject* visualization, uint updateInterval, Plasma::IntervalAlignment align)
void connectSource(DataContainer* s, QObject* visualization, uint updateInterval,
Plasma::IntervalAlignment align, bool immediateCall = true)
{
//kDebug() << "connect source called with interval" << updateInterval;
if (updateInterval > 0) {
@ -101,13 +102,19 @@ class DataEngine::Private
s->connectVisualization(visualization, updateInterval, align);
QMetaObject::invokeMethod(visualization, "dataUpdated",
Q_ARG(QString, s->objectName()),
Q_ARG(Plasma::DataEngine::Data, s->data()));
if (immediateCall) {
QMetaObject::invokeMethod(visualization, "dataUpdated",
Q_ARG(QString, s->objectName()),
Q_ARG(Plasma::DataEngine::Data, s->data()));
}
}
DataContainer* requestSource(const QString& sourceName)
DataContainer* requestSource(const QString& sourceName, bool* newSource = 0)
{
if (newSource) {
*newSource = false;
}
//kDebug() << "requesting source " << sourceName;
DataContainer* s = source(sourceName, false);
@ -121,6 +128,9 @@ class DataEngine::Private
if (s) {
// now we have a source; since it was created on demand, assume
// it should be removed when not used
if (newSource) {
*newSource = true;
}
connect(s, SIGNAL(unused(QString)), engine, SLOT(removeSource(QString)));
}
}
@ -185,10 +195,11 @@ void DataEngine::connectSource(const QString& source, QObject* visualization,
uint updateInterval, Plasma::IntervalAlignment intervalAlignment) const
{
//kDebug() << "connectSource" << source;
DataContainer* s = d->requestSource(source);
bool newSource;
DataContainer* s = d->requestSource(source, &newSource);
if (s) {
d->connectSource(s, visualization, updateInterval, intervalAlignment);
d->connectSource(s, visualization, updateInterval, intervalAlignment, !newSource);
//kDebug() << " ==> source connected";
}
}