Use qt-based signal forwarding

Plugins/org.commontk.dah.core/ctkDicomAbstractExchangeCache.cpp

@@ -60,7 +60,7 @@ ctkDicomAbstractExchangeCachePrivate::~ctkDicomAbstractExchangeCachePrivate()
 ctkDicomAbstractExchangeCache::ctkDicomAbstractExchangeCache() :
   d_ptr(new ctkDicomAbstractExchangeCachePrivate)
 {
-  connect(this, SIGNAL(internalDataAvailable()), this, SLOT(forwardDataAvailable()), Qt::QueuedConnection);
+  connect(this, SIGNAL(internalDataAvailable()), SIGNAL(dataAvailable()), Qt::QueuedConnection);
 }
 
 //----------------------------------------------------------------------------
@@ -130,9 +130,3 @@ bool ctkDicomAbstractExchangeCache::notifyDataAvailable(const ctkDicomAppHosting
   emit internalDataAvailable();
   return true;
 }
-
-//----------------------------------------------------------------------------
-void ctkDicomAbstractExchangeCache::forwardDataAvailable()
-{
-  emit dataAvailable();
-}

Plugins/org.commontk.dah.core/ctkDicomAbstractExchangeCache.h

@@ -124,8 +124,6 @@ signals:
 private:
 signals:
   void internalDataAvailable();
-private slots:
-  void forwardDataAvailable();
 private:
 
   Q_DECLARE_PRIVATE(ctkDicomAbstractExchangeCache)