ui: improved graph view layouting and bundling

* move top and bottom layout buckets closer to center buckets
* split undefined bundles into users and usees
* acknowledge zoom for graph view size in layouting
* bundle all referencing nodes
* fixed bundle node and bundle edge count

src/lib/component/controller/helper/DummyNode.h

@@ -3,6 +3,7 @@
 
 #include "utility/math/Vector2.h"
 #include "utility/types.h"
+#include "utility/utility.h"
 
 #include "data/graph/token_component/TokenComponentAccess.h"
 
@@ -24,6 +25,7 @@ public:
 		, hasParent(true)
 		, accessType(TokenComponentAccess::ACCESS_NONE)
 		, invisibleSubNodeCount(0)
+		, bundledNodeCount(0)
 	{
 	}
 
@@ -101,6 +103,60 @@ public:
 		return false;
 	}
 
+	size_t getConnectedSubNodeCount() const
+	{
+		size_t count = 0;
+
+		if (connected)
+		{
+			count += 1;
+		}
+
+		for (const DummyNode& node : subNodes)
+		{
+			count += node.getConnectedSubNodeCount();
+		}
+
+		return count;
+	}
+
+	std::vector<const DummyNode*> getConnectedSubNodes() const
+	{
+		std::vector<const DummyNode*> nodes;
+
+		if (connected)
+		{
+			nodes.push_back(this);
+		}
+
+		for (const DummyNode& node : subNodes)
+		{
+			utility::append(nodes, node.getConnectedSubNodes());
+		}
+
+		return nodes;
+	}
+
+	std::vector<const DummyNode*> getAllBundledNodes() const
+	{
+		std::vector<const DummyNode*> nodes;
+		for (const DummyNode& node : bundledNodes)
+		{
+			utility::append(nodes, node.getConnectedSubNodes());
+		}
+		return nodes;
+	}
+
+	size_t getBundledNodeCount() const
+	{
+		if (bundledNodeCount > 0)
+		{
+			return bundledNodeCount;
+		}
+
+		return bundledNodes.size();
+	}
+
 	Vec2i position;
 	Vec2i size;
 
@@ -129,6 +185,7 @@ public:
 
 	// BundleNode
 	std::vector<DummyNode> bundledNodes;
+	size_t bundledNodeCount;
 };
 
 #endif // DUMMY_NODE_H