Fix qWarnings() at startup and shutdown

Fix unexpected NULL receiver on startup: Turns out this warning is
issued when calling deleteLater on a NULL object. This happened in
SheMov::createOpenWith*.

The "database is still in use" warning was a bit harder to track down.
First of all, the destructors weren't called since Qt::WA_DeleteOnClose
wasn't set for SheMov, so Qt would simply exit and let the OS do the
cleanup without calling the destructors.

Then there were several orphan widgets/objects without a parent, so
their destructor would never be called.

1 files changed, 9 insertions, 0 deletions

diff --git a/seriestreewidget.cpp b/seriestreewidget.cpp
index 19617a7..fa6ded5 100644
--- a/seriestreewidget.cpp
+++ b/seriestreewidget.cpp
@@ -92,6 +92,14 @@ SeriesTreeWidget::SeriesTreeWidget(QWidget *parent) : QWidget(parent){
 	connect(mCompleterProducer, SIGNAL(done(QStringListModel*)), this, SLOT(producerFinished(QStringListModel*)));
 }
 
+SeriesTreeWidget::~SeriesTreeWidget(){
+	if(mCompleterProducerThread->isRunning()){
+		mCompleterProducerThread->terminate();
+	}
+	delete mCompleterProducerThread;
+	delete mCompleterProducer;
+}
+
 void SeriesTreeWidget::newSeries(){
 	QList<QVariant> data;
 	data << tr("<New series>") << QVariant() << QVariant() << QVariant() << SeriesTreeModel::NewSeries;
@@ -535,6 +543,7 @@ CompleterProducer::~CompleterProducer(){
 	delete mQualityQuery;
 	delete mDvdNoQuery;
 	mDb.close();
+	mDb = QSqlDatabase();
 }
 
 void CompleterProducer::produce(){