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Anonymous committed ad73dae

Refactored files and changed the DirectedGraphVisitor to match the component layout, but it doesn't work for components yet

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Files changed (4)

src/nl/tudelft/lime/layout/DirectedGraphLayoutVisitor.java

-/*
- * Created on Jul 15, 2004
- */
-package nl.tudelft.lime.layout;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import nl.tudelft.lime.edit.editpart.ArcEditPart;
-import nl.tudelft.lime.edit.editpart.ComponentEditPart;
-import nl.tudelft.lime.edit.editpart.LimeContainerEditPart;
-import nl.tudelft.lime.edit.editpart.LimeDiagramEditPart;
-import nl.tudelft.lime.edit.editpart.LimeEditPart;
-import nl.tudelft.lime.edit.editpart.PortEditPart;
-
-import org.eclipse.draw2d.AbsoluteBendpoint;
-import org.eclipse.draw2d.Connection;
-import org.eclipse.draw2d.IFigure;
-import org.eclipse.draw2d.PolygonDecoration;
-import org.eclipse.draw2d.PolylineConnection;
-import org.eclipse.draw2d.geometry.Insets;
-import org.eclipse.draw2d.geometry.Rectangle;
-import org.eclipse.draw2d.graph.DirectedGraph;
-import org.eclipse.draw2d.graph.Edge;
-import org.eclipse.draw2d.graph.Node;
-import org.eclipse.draw2d.graph.NodeList;
-import org.eclipse.gef.EditPart;
-import org.eclipse.gef.editparts.AbstractGraphicalEditPart;
-
-/**
- * Visitor with support for populating nodes and edges of DirectedGraph
- * from model objects
- * @author Phil Zoio
- */
-public class DirectedGraphLayoutVisitor
-{
-
-	Map<AbstractGraphicalEditPart, Object> partToNodesMap;
-	/**
-	 * The algorithm doesn't work if there are two edges from a specified node to another node
-	 */
-	Map<Node, Set<Node>> processedEdges = new HashMap<Node, Set<Node>>();
-	DirectedGraph graph;
-
-	/**
-	 * Public method for reading graph nodes
-	 */
-	public void layoutDiagram(LimeDiagramEditPart diagram)
-	{
-
-		partToNodesMap = new HashMap<AbstractGraphicalEditPart, Object>();
-		
-		graph = new DirectedGraph();
-		//in this phase we have to add our nodes which have edges,
-		//for our LIME diagram they are ports
-		addNodes(diagram);
-		if (graph.nodes.size() > 0)
-		{	
-//			addEdges(diagram);
-			addEdges(getPorts(diagram));
-			new NodeJoiningDirectedGraphLayout().visit(graph);
-			applyResults(diagram);
-		}
-
-	}
-
-	//******************* SchemaDiagramPart contribution methods **********/
-
-	protected void addNodes(LimeDiagramEditPart diagram)
-	{
-		GraphAnimation.recordInitialState(diagram.getFigure());
-		
-		final List children = diagram.getChildren();
-		for (Object child : children){
-			if (child instanceof ComponentEditPart)
-				addNodes((LimeEditPart) child);
-		}
-		//now add all the ports in the diagram,
-	}
-	@SuppressWarnings("unchecked")
-	private List<PortEditPart> getPorts(LimeContainerEditPart diagram) {
-		List<PortEditPart> ports = new ArrayList<PortEditPart>();
-		List<LimeEditPart> children = (List<LimeEditPart>) diagram.getChildren();
-		for (LimeEditPart child : children){
-			if (child instanceof PortEditPart){
-				ports.add((PortEditPart)child);
-			}
-			else if (child instanceof ComponentEditPart){
-				ports.addAll(getPorts((ComponentEditPart)child));
-			}
-		}
-		return ports;
-	}
-
-	/**
-	 * Adds nodes to the graph object for use by the GraphLayoutManager
-	 */
-	protected void addNodes(LimeEditPart limeEditPart)
-	{
-		//check the component which is the owner of the node
-		LimeEditPart currentNode = limeEditPart; 
-		if (limeEditPart instanceof PortEditPart){
-			currentNode = (LimeEditPart)findTopmostParent(currentNode);
-		}
-		if (!partToNodesMap.containsKey(currentNode)){
-			Node n = new Node(currentNode);
-			n.width = currentNode.getFigure().getPreferredSize(200, 200).width;
-			n.height = currentNode.getFigure().getPreferredSize(200, 200).height;
-			n.setPadding(new Insets(1, 1, 1, 1));
-			partToNodesMap.put(currentNode, n);
-			graph.nodes.add(n);
-		}
-	}
-	/**
-	 * finds the topmost parent which is acutally a component in the whole diagram
-	 * @param currentNode
-	 * @return
-	 */
-	private EditPart findTopmostParent(EditPart currentNode) {
-		//go up
-		while (currentNode.getParent().getClass() !=  LimeDiagramEditPart.class){
-			currentNode = currentNode.getParent();
-		}
-		return currentNode;
-	}
-
-	protected void addEdges(List<PortEditPart> nodes)
-	{
-		
-		for (PortEditPart part : nodes){
-			addEdges ((LimeEditPart)part);
-		}
-	}
-
-	//******************* TablePart contribution methods **********/
-
-	@SuppressWarnings("unchecked")
-	protected void addEdges(LimeEditPart limeEditPart)
-	{
-		List<ArcEditPart> outgoings = (List<ArcEditPart>) limeEditPart.getSourceConnections();
-		for (Object outgoing : outgoings){
-			addEdges((ArcEditPart)outgoing);
-		}
-	}
-
-	//******************* RelationshipPart contribution methods **********/
-
-	protected void addEdges(ArcEditPart arcEditPart)
-	{
-		GraphAnimation.recordInitialState((Connection) arcEditPart.getFigure());
-		Node source = (Node) partToNodesMap.get(findTopmostParent(arcEditPart.getSource()));
-		Node target = (Node) partToNodesMap.get(findTopmostParent(arcEditPart.getTarget()));
-		
-		//if it is a loop don't consider 
-		if (source == target) 
-			return;
-		
-		//if the arc didn't happen before then we have to create the edge
-		Set<Node> targetNodes = processedEdges.get(source); 
-		if (targetNodes != null){
-			//if the edge is redundant simply discard it
-			if (targetNodes.contains(target))
-				return;
-			else
-				targetNodes.add(target);
-		}
-		if (targetNodes == null){
-			targetNodes = new HashSet<Node>();
-			targetNodes.add(target);
-			processedEdges.put(source, targetNodes);
-		}
-		Edge e = new Edge(arcEditPart, source, target);
-		e.weight = 2;
-		graph.edges.add(e);
-		partToNodesMap.put(arcEditPart, e);
-	}
-
-	//******************* SchemaDiagramPart apply methods **********/
-
-	protected void applyResults(LimeDiagramEditPart diagram)
-	{
-		applyChildrenResults(diagram);
-	}
-
-	protected void applyChildrenResults(LimeDiagramEditPart diagram)
-	{
-		for (Object part : diagram.getChildren()){
-			applyResults((LimeEditPart)part);
-		}
-
-	}
-
-	protected void applyOwnResults(LimeDiagramEditPart diagram)
-	{
-	}
-
-	//******************* TablePart apply methods **********/
-
-	public void applyResults(LimeEditPart limeEditPart)
-	{
-
-		Node n = (Node) partToNodesMap.get(limeEditPart);
-		if (n != null){
-			IFigure partFigure = limeEditPart.getFigure();
-			
-			Rectangle bounds = new Rectangle(n.x, n.y, partFigure.getPreferredSize().width,
-					partFigure.getPreferredSize().height);
-	
-			partFigure.setBounds(bounds);
-	
-			for (Object arcPart : limeEditPart.getSourceConnections()){
-				applyResults((ArcEditPart)arcPart);
-			}
-		}
-	}
-
-	//******************* RelationshipPart apply methods **********/
-
-	protected void applyResults(ArcEditPart arcEditPart)
-	{
-
-		Edge e = (Edge) partToNodesMap.get(arcEditPart);
-		NodeList nodes = e.vNodes;
-
-		PolylineConnection conn = (PolylineConnection) arcEditPart.getConnectionFigure();
-		conn.setTargetDecoration(new PolygonDecoration());
-		if (nodes != null)
-		{
-			List bends = new ArrayList();
-			for (int i = 0; i < nodes.size(); i++)
-			{
-				Node vn = nodes.getNode(i);
-				int x = vn.x;
-				int y = vn.y;
-				if (e.isFeedback)
-				{
-					bends.add(new AbsoluteBendpoint(x, y + vn.height));
-					bends.add(new AbsoluteBendpoint(x, y));
-
-				}
-				else
-				{
-					bends.add(new AbsoluteBendpoint(x, y));
-					bends.add(new AbsoluteBendpoint(x, y + vn.height));
-				}
-			}
-		}
-	}
-
-}

src/nl/tudelft/lime/layout/GraphLayoutManager.java

 
 
 /**
- * Uses the DirectedGraphLayoutVisitor to automatically lay out figures on diagramEditPart
+ * Uses the LimeDiagramDirectedGraphLayoutVisitor to automatically lay out figures on diagramEditPart
  * 
  * This class is used to layout the graph
  * @author Phil Zoio
 		if (GraphAnimation.playbackState(container))
 			return;
 	
-		new DirectedGraphLayoutVisitor().layoutDiagram(diagramEditPart);
+		new LimeDiagramDirectedGraphLayoutVisitor().layoutDiagram(diagramEditPart);
 		diagramEditPart.setSubpartModelBounds();
 
 

src/nl/tudelft/lime/layout/LimeDiagramDirectedGraphLayoutVisitor.java

+package nl.tudelft.lime.layout;
+
+import nl.tudelft.lime.edit.editpart.ArcEditPart;
+import nl.tudelft.lime.edit.editpart.ComponentEditPart;
+import nl.tudelft.lime.edit.editpart.LimeContainerEditPart;
+import nl.tudelft.lime.edit.editpart.LimeDiagramEditPart;
+import nl.tudelft.lime.edit.editpart.LimeEditPart;
+import nl.tudelft.lime.edit.editpart.PortEditPart;
+
+import org.eclipse.draw2d.AbsoluteBendpoint;
+import org.eclipse.draw2d.Connection;
+import org.eclipse.draw2d.IFigure;
+import org.eclipse.draw2d.PolygonDecoration;
+import org.eclipse.draw2d.PolylineConnection;
+import org.eclipse.draw2d.geometry.Insets;
+import org.eclipse.draw2d.geometry.Rectangle;
+import org.eclipse.draw2d.graph.DirectedGraph;
+import org.eclipse.draw2d.graph.Edge;
+import org.eclipse.draw2d.graph.Node;
+import org.eclipse.draw2d.graph.NodeList;
+
+import org.eclipse.gef.EditPart;
+import org.eclipse.gef.editparts.AbstractGraphicalEditPart;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+
+/**
+ * Visitor with support for populating nodes and edges of DirectedGraph
+ * from model objects
+ * @author Mani Zandifar - adapted from Phil Zoio code
+ */
+public class LimeDiagramDirectedGraphLayoutVisitor {
+    /**
+     * The algorithm doesn't work if there are two edges from a specified node to another node
+     */
+    //DirectedGraph graph;
+
+    /**
+     * Public method for reading graph nodes
+     */
+    @SuppressWarnings("unchecked")
+    public void layoutDiagram(LimeDiagramEditPart diagram) {
+//        List<LimeEditPart> children = (List<LimeEditPart>) diagram.getChildren();
+//
+//        for (LimeEditPart child : children) {
+//            if (child instanceof ComponentEditPart) {
+//                layoutComponentContents(child);
+//            }
+//        }
+
+        Map<AbstractGraphicalEditPart, Object> partToNodesMap = new HashMap<AbstractGraphicalEditPart, Object>();
+        Map<Node, Set<Node>> processedEdges = new HashMap<Node, Set<Node>>();
+
+        DirectedGraph graph = new DirectedGraph();
+        //in this phase we have to add our nodes which have edges,
+        //for our LIME diagram they are ports
+        addNodesToTopmostDiagram(diagram, graph, partToNodesMap);
+
+        if (graph.nodes.size() > 0) {
+            addEdges(diagram, getPorts(diagram), true, graph, partToNodesMap, processedEdges);
+            new NodeJoiningDirectedGraphLayout().visit(graph);
+            applyResults(diagram, partToNodesMap);
+        }
+    }
+
+    /**
+     * this method layout a component, the idea is to seperate the items
+     * just to have the minimum conflict, so how do we do that, is simple,
+     * we check if
+     * @param component
+     */
+    @SuppressWarnings("unchecked")
+    private void layoutComponentContents(LimeEditPart item) {
+    	LimeDiagramEditPart component = (LimeDiagramEditPart) item;
+    	List<LimeEditPart> children = (List<LimeEditPart>) component.getChildren();
+
+        //this is the recursive part
+        for (LimeEditPart child : children) {
+            if (child instanceof ComponentEditPart) {
+                layoutComponentContents(child);
+            }
+        }
+
+        //and this is the important part which layouts a component,
+        //the rule is that first we check if items are connected together,
+        //then we create a graph from that, and apply the visitor to that
+        DirectedGraph componentGraph = new DirectedGraph();
+        Map<AbstractGraphicalEditPart, Object> componentPartsMap = new HashMap<AbstractGraphicalEditPart, Object>(children.size());
+        Map<Node, Set<Node>> processedEdges = new HashMap<Node, Set<Node>>();
+        for (LimeEditPart child : children) {
+            //in this phase we have to add our nodes which have edges,
+            //for our LIME diagram they are ports, and other components which are inside
+            //a component
+            Node node = createNodeForComponentGraph(child);
+            componentPartsMap.put(child, node);
+            componentGraph.nodes.add(node);
+
+            //if the graph is created
+            if (componentGraph.nodes.size() > 0) {
+                //then draw the edges for the 
+                addEdges(component, getPorts(component), false, componentGraph, componentPartsMap, processedEdges);
+                new NodeJoiningDirectedGraphLayout().visit(componentGraph);
+                applyResults(component, componentPartsMap);
+            }
+        }
+    }
+
+    /**
+     * This is different than the normal graph edges. In this method, an edge is defined between the
+     * nodes inside a component (nodes are ports and other components inside a component, in this case),
+     * if there is a port to port connection between them, otherwise they are not connected together
+     * @param ports
+     */
+    private void addEdgesForComponent(LimeDiagramEditPart parent, ArcEditPart arcEditPart, DirectedGraph graph, Map<AbstractGraphicalEditPart, Object> componentPartMap, Map<Node, Set<Node>> processedEdges) {
+		GraphAnimation.recordInitialState((Connection) arcEditPart.getFigure());
+		EditPart fromEditPart = findTopmostParent(parent, arcEditPart.getSource());
+		EditPart toEditPart = findTopmostParent(parent, arcEditPart.getTarget());
+		//if it is a port, then use itself
+		Node source, target;
+		if (fromEditPart.equals(parent)){
+			source = (Node) componentPartMap.get(arcEditPart.getSource());
+		}
+		else{
+			source = (Node) componentPartMap.get(fromEditPart);
+		}
+		if (toEditPart.equals(parent)){
+			target = (Node) componentPartMap.get(arcEditPart.getTarget());
+		}
+		else{
+			target = (Node) componentPartMap.get(toEditPart);
+		}		
+		//now we have component which are connected 
+		//if it is a loop don't consider 
+		if (source == target) 
+			return;
+		
+		//if the arc didn't happen before then we have to create the edge
+		Set<Node> targetNodes = processedEdges.get(source); 
+		if (targetNodes != null){
+			//if the edge is redundant simply discard it
+			if (targetNodes.contains(target))
+				return;
+			else
+				targetNodes.add(target);
+		}
+		if (targetNodes == null){
+			targetNodes = new HashSet<Node>();
+			targetNodes.add(target);
+			processedEdges.put(source, targetNodes);
+		}
+		Edge e = new Edge(arcEditPart, source, target);
+		e.weight = 2;
+		graph.edges.add(e);
+		componentPartMap.put(arcEditPart, e);    	
+    }
+
+    /**
+     * For component graph we have to add all children, regardless of if they are
+     * ports or not
+     * @param componentGraph
+     * @param limeEditPart
+     */
+    private Node createNodeForComponentGraph(LimeEditPart currentNode) {
+        //check the component which is the owner of the node
+        Node n = new Node(currentNode);
+        n.width = currentNode.getFigure().getPreferredSize(200, 200).width;
+        n.height = currentNode.getFigure().getPreferredSize(200, 200).height;
+        n.setPadding(new Insets(1, 1, 1, 1));
+
+        return n;
+
+        //partToNodesMap.put(currentNode, n);			componentGraph.nodes.add(n);
+    }
+
+    //LIME diagram related node adding
+    @SuppressWarnings("unchecked")
+    protected void addNodesToTopmostDiagram(LimeDiagramEditPart diagram, DirectedGraph graph, Map<AbstractGraphicalEditPart, Object> partToNodesMap) {
+        GraphAnimation.recordInitialState(diagram.getFigure());
+
+        final List children = diagram.getChildren();
+
+        for (Object child : children) {
+            if (child instanceof ComponentEditPart) {
+                addNodes(diagram, (LimeEditPart) child, graph, partToNodesMap);
+            }
+        }
+
+        //now add all the ports in the diagram,
+    }
+
+    @SuppressWarnings("unchecked")
+    private List<PortEditPart> getPorts(LimeContainerEditPart diagram) {
+        List<PortEditPart> ports = new ArrayList<PortEditPart>();
+        List<LimeEditPart> children = (List<LimeEditPart>) diagram.getChildren();
+
+        for (LimeEditPart child : children) {
+            if (child instanceof PortEditPart) {
+                ports.add((PortEditPart) child);
+            } else if (child instanceof ComponentEditPart) {
+                ports.addAll(getPorts((ComponentEditPart) child));
+            }
+        }
+
+        return ports;
+    }
+
+    /**
+     * Adds nodes to the graph object for use by the GraphLayoutManager
+     */
+    protected void addNodes(LimeDiagramEditPart parent, LimeEditPart limeEditPart, DirectedGraph graph, Map<AbstractGraphicalEditPart, Object> partToNodesMap) {
+        //check the component which is the owner of the node
+        LimeEditPart currentNode = limeEditPart;
+
+        if (limeEditPart instanceof PortEditPart) {
+            currentNode = (LimeEditPart) findTopmostParent(parent, currentNode);
+        }
+
+        if (!partToNodesMap.containsKey(currentNode)) {
+            Node n = new Node(currentNode);
+            n.width = currentNode.getFigure().getPreferredSize(200, 200).width;
+            n.height = currentNode.getFigure().getPreferredSize(200, 200).height;
+            n.setPadding(new Insets(1, 1, 1, 1));
+            partToNodesMap.put(currentNode, n);
+            graph.nodes.add(n);
+        }
+    }
+
+    /**
+     * finds the topmost parent which is acutally a component in the whole diagram
+     * @param currentNode
+     * @return
+     */
+    private EditPart findTopmostParent(LimeDiagramEditPart whichIsAChildOf, EditPart currentNode) {
+        //go up
+        while (!currentNode.getParent().equals(whichIsAChildOf)) {
+            currentNode = currentNode.getParent();
+        }
+
+        return currentNode;
+    }
+
+    /**
+     * Based on the ports it has, the parent which these edges should be drawn for and if it is a diagram
+     * or not it approaches layouting with different scenarios
+     * @param parent
+     * @param nodes
+     * @param isDiagram
+     * @param processedEdges 
+     */
+    @SuppressWarnings("unchecked")
+    protected void addEdges(LimeDiagramEditPart parent, List<PortEditPart> nodes, boolean isDiagram,DirectedGraph graph, Map<AbstractGraphicalEditPart, Object> partToNodesMap, Map<Node, Set<Node>> processedEdges) {
+        for (PortEditPart part : nodes) {
+            List<ArcEditPart> outgoings = (List<ArcEditPart>) part.getSourceConnections();
+
+            for (Object outgoing : outgoings) {
+                if (isDiagram) {
+                    addEdges(parent, (ArcEditPart) outgoing, graph, partToNodesMap, processedEdges);
+                } else {
+                    addEdgesForComponent(parent, (ArcEditPart) outgoing, graph, partToNodesMap, processedEdges);
+                }
+            }
+        }
+    }
+
+    //******************* RelationshipPart contribution methods **********/
+    protected void addEdges(LimeDiagramEditPart parent, ArcEditPart arcEditPart, DirectedGraph graph, Map<AbstractGraphicalEditPart, Object> partToNodesMap, Map<Node, Set<Node>> processedEdges) {
+    	
+        GraphAnimation.recordInitialState((Connection) arcEditPart.getFigure());
+
+        Node source = (Node) partToNodesMap.get(findTopmostParent(parent, 
+                    arcEditPart.getSource()));
+        Node target = (Node) partToNodesMap.get(findTopmostParent(parent, 
+                    arcEditPart.getTarget()));
+
+        //if it is a loop don't consider 
+        if (source == target) {
+            return;
+        }
+
+        //if the arc didn't happen before then we have to create the edge
+        Set<Node> targetNodes = processedEdges.get(source);
+
+        if (targetNodes != null) {
+            //if the edge is redundant simply discard it
+            if (targetNodes.contains(target)) {
+                return;
+            } else {
+                targetNodes.add(target);
+            }
+        }
+
+        if (targetNodes == null) {
+            targetNodes = new HashSet<Node>();
+            targetNodes.add(target);
+            processedEdges.put(source, targetNodes);
+        }
+
+        Edge e = new Edge(arcEditPart, source, target);
+        e.weight = 2;
+        graph.edges.add(e);
+        partToNodesMap.put(arcEditPart, e);
+    }
+
+    //LIME diagram apply methods
+    protected void applyResults(LimeDiagramEditPart diagram, Map<AbstractGraphicalEditPart, Object> partToNodesMap) {
+        applyChildrenResults(diagram, partToNodesMap);
+    }
+
+    protected void applyChildrenResults(LimeDiagramEditPart diagram, Map<AbstractGraphicalEditPart, Object> partToNodesMap) {
+        for (Object part : diagram.getChildren()) {
+            applyResults((LimeEditPart) part, partToNodesMap);
+        }
+    }
+
+    protected void applyOwnResults(LimeDiagramEditPart diagram) {
+    }
+
+    //top component level apply methods
+    public void applyResults(LimeEditPart limeEditPart, Map<AbstractGraphicalEditPart, Object> partToNodesMap) {
+        Node n = (Node) partToNodesMap.get(limeEditPart);
+
+        if (n != null) {
+            IFigure partFigure = limeEditPart.getFigure();
+
+            Rectangle bounds = new Rectangle(n.x, n.y,
+                    partFigure.getPreferredSize().width,
+                    partFigure.getPreferredSize().height);
+
+            partFigure.setBounds(bounds);
+
+            for (Object arcPart : limeEditPart.getSourceConnections()) {
+                applyResults((ArcEditPart) arcPart, partToNodesMap);
+            }
+        }
+    }
+
+    //******************* RelationshipPart apply methods **********/
+    protected void applyResults(ArcEditPart arcEditPart, Map<AbstractGraphicalEditPart, Object> partToNodesMap) {
+        Edge e = (Edge) partToNodesMap.get(arcEditPart);
+        NodeList nodes = e.vNodes;
+
+        PolylineConnection conn = (PolylineConnection) arcEditPart.getConnectionFigure();
+        conn.setTargetDecoration(new PolygonDecoration());
+
+        if (nodes != null) {
+            List bends = new ArrayList();
+
+            for (int i = 0; i < nodes.size(); i++) {
+                Node vn = nodes.getNode(i);
+                int x = vn.x;
+                int y = vn.y;
+
+                if (e.isFeedback) {
+                    bends.add(new AbsoluteBendpoint(x, y + vn.height));
+                    bends.add(new AbsoluteBendpoint(x, y));
+                } else {
+                    bends.add(new AbsoluteBendpoint(x, y));
+                    bends.add(new AbsoluteBendpoint(x, y + vn.height));
+                }
+            }
+        }
+    }
+}

src/nl/tudelft/lime/model/LimeDiagram.java

     public static Integer ROUTER_MANUAL = new Integer(0);
     public static Integer ROUTER_MANHATTAN = new Integer(1);
     public static Integer ROUTER_SHORTEST_PATH = new Integer(2);
-    private static int count;
+    private static int count;	
     private static Image LOGIC_ICON = createImage(LimeDiagram.class,
             SystemSettings.Component_Normal_Icon_Path); //$NON-NLS-1$
     protected List<LimeElement> children = new ArrayList<LimeElement>();