view java/src/uk/ac/qmul/eecs/ccmi/gui/Diagram.java @ 0:9418ab7b7f3f

Initial import

/*  
 CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool
  
 Copyright (C) 2011  Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/)

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package uk.ac.qmul.eecs.ccmi.gui;

import java.awt.geom.Point2D;
import java.util.Set;

import uk.ac.qmul.eecs.ccmi.diagrammodel.CollectionModel;
import uk.ac.qmul.eecs.ccmi.diagrammodel.DiagramElement;
import uk.ac.qmul.eecs.ccmi.diagrammodel.DiagramModel;
import uk.ac.qmul.eecs.ccmi.diagrammodel.DiagramModelTreeNode;
import uk.ac.qmul.eecs.ccmi.diagrammodel.NodeProperties;
import uk.ac.qmul.eecs.ccmi.diagrammodel.TreeModel;
import uk.ac.qmul.eecs.ccmi.gui.persistence.PrototypePersistenceDelegate;

/**
 * This Diagram class holds all the data needed for a representation of the diagram. It is used by component classes 
 * such as {@link GraphPanel} and {@link DiagramTree} to draw the diagram by accessing the diagram model or by 
 * {@link EditorTabbedPane} to assign a title to the tabs out of the diagram name. 
 * 
 *
 */
public abstract class Diagram implements Cloneable {
	
	public static Diagram newInstance(String name, Node[] nodes, Edge[] edges, PrototypePersistenceDelegate prototypePersistenceDelegate){
		return new LocalDiagram(name,nodes,edges,prototypePersistenceDelegate);
	}
	
	public abstract String getName();

	public abstract void setName(String name);

	public abstract Node[] getNodePrototypes();

	public abstract Edge[] getEdgePrototypes();

	public abstract TreeModel<Node,Edge> getTreeModel();

	public abstract CollectionModel<Node,Edge> getCollectionModel();

	public abstract DiagramModelUpdater getModelUpdater();
	
	public abstract String getLabel();
	
	public abstract PrototypePersistenceDelegate getPrototypePersistenceDelegate();

	@Override
	public Object clone(){
		try {
			return super.clone();
		} catch (CloneNotSupportedException e) {
			throw new RuntimeException(e);
		}
	}
	
	private static class LocalDiagram extends Diagram {

		private LocalDiagram(String name, Node[] nodes, Edge[] edges,PrototypePersistenceDelegate prototypePersistenceDelegate){
			this.name = name;
			this.nodes = nodes;
			this.edges = edges;
			this.prototypePersistenceDelegate = prototypePersistenceDelegate;
			diagramModel = new DiagramModel<Node,Edge>(nodes,edges);
			innerModelUpdater = new InnerModelUpdater();
		}

		@Override
		public String getName(){
			return name;
		}

		@Override
		public void setName(String name){
			this.name = name;
		}

		@Override
		public Node[] getNodePrototypes(){
			return nodes;
		}

		@Override
		public Edge[] getEdgePrototypes(){
			return edges;
		}

		@Override
		public TreeModel<Node,Edge> getTreeModel(){
			return diagramModel.getTreeModel();
		}

		@Override
		public CollectionModel<Node,Edge> getCollectionModel(){
			return diagramModel.getDiagramCollection();
		}

		@Override
		public String getLabel(){
			return name;
		}
		
		@Override
		public DiagramModelUpdater getModelUpdater(){
			return innerModelUpdater;
		}
		
		@Override
		public String toString(){
			return name;
		}
		
		@Override
		public PrototypePersistenceDelegate getPrototypePersistenceDelegate(){
			return prototypePersistenceDelegate;
		}
		
		@Override
		public Object clone(){
			LocalDiagram clone = (LocalDiagram)super.clone();
			clone.name = getName();
			clone.nodes = getNodePrototypes();
			clone.edges = getEdgePrototypes();
			/* constructor with no args makes just a dummy wrapper */
			clone.diagramModel = new DiagramModel<Node,Edge>(nodes,edges);
			clone.innerModelUpdater = clone.new InnerModelUpdater();
			return clone;
		}

		private DiagramModel<Node,Edge> diagramModel;
		private InnerModelUpdater innerModelUpdater;
		private PrototypePersistenceDelegate prototypePersistenceDelegate;
		private String name;
		private Node[] nodes;
		private Edge[] edges;

		private class InnerModelUpdater implements DiagramModelUpdater {

			@Override
			public boolean getLock(DiagramModelTreeNode treeNode, Lock lock) {
				/* using a non shared diagram requires no actual lock, therefore the answer is always yes */
				return true;
			}
			
			@Override
			public void yieldLock(DiagramModelTreeNode treeNode, Lock lock) {}

			@Override
			public void insertInCollection(DiagramElement element) {
				if(element instanceof Node)
					diagramModel.getDiagramCollection().insert((Node)element);
				else
					diagramModel.getDiagramCollection().insert((Edge)element);
			}

			@Override
			public void insertInTree(DiagramElement element) {
				if(element instanceof Node)
					diagramModel.getTreeModel().insertTreeNode((Node)element);
				else
					diagramModel.getTreeModel().insertTreeNode((Edge)element);
			}

			@Override
			public void takeOutFromCollection(DiagramElement element) {
				diagramModel.getDiagramCollection().takeOut(element);
			}

			@Override
			public void takeOutFromTree(DiagramElement element) {
				diagramModel.getDiagramCollection().takeOut(element);
			}

			@Override
			public void setName(DiagramElement element, String name) {
				element.setName(name);
			}

			@Override
			public void setNotes(DiagramModelTreeNode treeNode, String notes) {
				diagramModel.getTreeModel().setNotes(treeNode, notes);
			}

			@Override
			public void setProperty(Node node, String type, int index,
					String value) {
				node.setProperty(type, index, value);
			}

			@Override
			public void setProperties(Node node, NodeProperties properties) {
				node.setProperties(properties);
			}

			@Override
			public void clearProperties(Node node) {
				node.clearProperties();
			}

			@Override
			public void addProperty(Node node, String type, String value) {
				node.addProperty(type, value);
			}

			@Override
			public void removeProperty(Node node, String type, int index) {
				node.removeProperty(type, index);
			}

			@Override
			public void setModifiers(Node node, String type, int index,
					Set<Integer> modifiers) {
				node.setModifierIndexes(type, index, modifiers);				
			}

			@Override
			public void setEndLabel(Edge edge, Node node, String label) {
				edge.setEndLabel(node, label);
			}

			@Override
			public void setEndDescription(Edge edge, Node node,
					int index) {
				edge.setEndDescription(node, index);
			}

			@Override
			public void translate(GraphElement ge, Point2D p, double x, double y) {
				ge.translate(p, x, y);
			}

			@Override
			public void startMove(GraphElement ge, Point2D p) {
				ge.startMove(p);
			}

			@Override
			public void bend(Edge edge, Point2D p) {
				edge.bend(p);
			}

			@Override
			public void stopMove(GraphElement ge) {
				ge.stopMove();
			}
		}
	}

}