src: various fixes

* fixed crash when hovering GraphNode while expanding/collapsing it
* fixed clang warnings
* fixed GraphNodeExpandToggle to show empty circle
* fixed Searchbar showing empty block when nothing was parsed
* made template related edges in GraphView red

src/lib/component/controller/GraphController.cpp

@@ -523,7 +523,10 @@ void GraphController::addExpandToggleNode(DummyNode& node) const
 		}
 	}
 
-	node.subNodes.push_back(expandNode);
+	if (expandNode.isExpanded() || expandNode.invisibleSubNodeCount)
+	{
+		node.subNodes.push_back(expandNode);
+	}
 }
 
 void GraphController::layoutToGrid(DummyNode& node) const

src/lib/component/controller/SearchController.cpp

@@ -13,7 +13,6 @@ SearchController::~SearchController()
 {
 }
 
-#include <iostream>
 void SearchController::handleMessage(MessageActivateTokens* message)
 {
 	if (!m_ignoreNextMessageActivateTokens && message->tokenIds.size())

src/lib/component/view/GraphViewStyle.cpp

@@ -407,7 +407,12 @@ GraphViewStyle::EdgeStyle GraphViewStyle::getStyleForEdgeType(Edge::EdgeType typ
 	case Edge::EDGE_INCLUDE:
 		style.color = "#87BA50";
 		break;
-
+	case Edge::EDGE_TEMPLATE_PARAMETER_OF:
+	case Edge::EDGE_TEMPLATE_ARGUMENT_OF:
+	case Edge::EDGE_TEMPLATE_DEFAULT_ARGUMENT_OF:
+	case Edge::EDGE_TEMPLATE_SPECIALIZATION_OF:
+		style.color = "#DD0000";
+		break;
 	default:
 		style.color = "#878787";
 		break;