Added MessageManagerLock back to DataThread

The DataThread shouldn't have a MML all the time, but it does need it
when signaling that the data source is not found.

Also fixed a line in the FilterViewport that was causing the enabled
status of editors to fail to update.

Source/Processors/DataThreads/DataThread.cpp

@@ -38,12 +38,14 @@ void DataThread::run() {
 	while (! threadShouldExit())
 	{
 
-	 	const ScopedLock sl (lock);
+	 //	const ScopedLock sl (lock);
 
 		if (!updateBuffer()) {
+
+			const MessageManagerLock mmLock (Thread::getCurrentThread());
+
 			std::cout << "Aquisition error...stopping thread." << std::endl;
 			signalThreadShouldExit();
-			//stopAcquisition();
 			std::cout << "Notifying source node to stop acqusition." << std::endl;
 			sn->acquisitionStopped();
 		}

Source/Processors/DataThreads/IntanThread.cpp

@@ -58,6 +58,9 @@ float IntanThread::getSampleRate()
 
 bool IntanThread::foundInputSource()
 {
+
+    //std::cout << "Checking for input source." << std::endl;
+
     if (deviceFound)
     {
         int return_value;
@@ -189,6 +192,7 @@ bool IntanThread::updateBuffer()
     if ((bytes_read = ftdi_read_data(&ftdic, buffer, sizeof(buffer))) < 0 && isTransmitting)
     {
         std::cout << "NO DATA FOUND!" << std::endl;
+        deviceFound = false;
         return false;
     }
 

Source/Processors/SourceNode.cpp

@@ -155,6 +155,7 @@ void SourceNode::timerCallback()
 			//stopTimer(); // check for input source every two seconds
 			enabledState(true);
 			GenericEditor* ed = (GenericEditor*) getEditor();
+			//ed->enable();
 			viewport->updateVisibleEditors(ed, 4);
 		}
 	} else {
@@ -162,6 +163,7 @@ void SourceNode::timerCallback()
 			std::cout << "No input source found." << std::endl;
 			enabledState(false);
 			GenericEditor* ed = (GenericEditor*) getEditor();
+			//ed->disable();
 			viewport->updateVisibleEditors(ed, 4);
 		}
 	}

Source/UI/FilterViewport.cpp

@@ -56,9 +56,9 @@ void FilterViewport::signalChainCanBeEdited(bool t)
 {
     canEdit = t;
     if (!canEdit)
-        std::cout << "Filter Viewport disabled.";
+        std::cout << "Filter Viewport disabled." << std::endl;
     else
-        std::cout << "Filter Viewport enabled.";
+        std::cout << "Filter Viewport enabled." << std::endl;
 
 }
 
@@ -484,7 +484,7 @@ void FilterViewport::updateVisibleEditors(GenericEditor* activeEditor, int actio
     //std::cout << "OK1." << std::endl;
 
     // Step 5: check the validity of the signal chain
-    if (action < 4) {
+    if (action < 5) {
         bool enable = true;
 
         if (editorArray.size() == 1) {