ui: typed edges

Edges in the graph view are now colored according to their type.

src/lib/component/view/graphElements/GraphEdge.h

@@ -3,8 +3,11 @@
 
 #include <memory>
 
+#include "utility/math/Vector4.h"
 #include "utility/types.h"
 
+#include "data/graph/Edge.h"
+
 class GraphNode;
 
 class GraphEdge
@@ -20,15 +23,19 @@ public:
 
 	virtual std::weak_ptr<GraphNode> getOwner() = 0;
 	virtual std::weak_ptr<GraphNode> getTarget() = 0;
+
+	virtual void setColor(const Vec4i& color) = 0;
+	virtual Vec4i getColor() const = 0;
 };
 
 // temporary data structure for (visual) graph creation process
 struct DummyEdge
 {
 public:
-	DummyEdge(const Id o, const Id t)
+	DummyEdge(const Id o, const Id t, Edge::EdgeType type)
 		: ownerId(o)
 		, targetId(t)
+		, edgeType(type)
 	{
 	}
 
@@ -66,6 +73,8 @@ public:
 
 	Id ownerId;
 	Id targetId;
+
+	Edge::EdgeType edgeType;
 };
 
 #endif // GRAPH_EDGE_H