f@0: /*  
f@0:  CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool
f@0:   
f@0:  Copyright (C) 2011  Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/)
f@0: 
f@0:  This program is free software: you can redistribute it and/or modify
f@0:  it under the terms of the GNU General Public License as published by
f@0:  the Free Software Foundation, either version 3 of the License, or
f@0:  (at your option) any later version.
f@0: 
f@0:  This program is distributed in the hope that it will be useful,
f@0:  but WITHOUT ANY WARRANTY; without even the implied warranty of
f@0:  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
f@0:  GNU General Public License for more details.
f@0: 
f@0:  You should have received a copy of the GNU General Public License
f@0:  along with this program.  If not, see <http://www.gnu.org/licenses/>.
f@0: */  
f@0: 
f@0: package uk.ac.qmul.eecs.ccmi.simpletemplate;
f@0: 
f@0: import java.awt.Shape;
f@0: import java.awt.geom.Ellipse2D;
f@0: import java.awt.geom.Point2D;
f@0: import java.awt.geom.Rectangle2D;
f@0: import java.io.IOException;
f@0: import java.io.InputStream;
f@0: import java.util.List;
f@0: 
f@0: import org.w3c.dom.Document;
f@0: import org.w3c.dom.Element;
f@0: 
f@0: import uk.ac.qmul.eecs.ccmi.diagrammodel.NodeProperties;
f@0: import uk.ac.qmul.eecs.ccmi.gui.Direction;
f@0: import uk.ac.qmul.eecs.ccmi.sound.SoundFactory;
f@0: 
f@0: /**
f@0:  *
f@0:  * An elliptical shaped diagram node.
f@0:  *
f@0:  */
f@0: @SuppressWarnings("serial")
f@0: public class EllipticalNode extends SimpleShapeNode {
f@0: 
f@0: 	public EllipticalNode(String typeName, NodeProperties properties){
f@0: 		super(typeName, properties);
f@0: 		Rectangle2D r = getMinBounds();
f@0: 		eShape = new Ellipse2D.Double(0,0,r.getWidth(),r.getHeight());
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public ShapeType getShapeType() {
f@0: 		return ShapeType.Ellipse;
f@0: 	}
f@0: 	
f@0: 	public static Rectangle2D getOutBounds(Rectangle2D r){
f@0: 		double h = r.getHeight()/2;
f@0: 		double w = r.getWidth()/2;
f@0: 		
f@0: 		double anglew = Math.atan(h/w);
f@0: 		double angleh = Math.atan(w/h);
f@0: 		
f@0: 		double a = w + h * Math.tan(angleh)/2;
f@0: 		double b = h + w * Math.tan(anglew)/2;
f@0: 		
f@0: 		return  new Rectangle2D.Double(
f@0: 				r.getCenterX() - a,
f@0: 				r.getCenterY() - b,
f@0: 				2*a,
f@0: 				2*b
f@0: 				);
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	protected void reshapeInnerProperties(List<String> insidePropertyTypes){
f@0: 		super.reshapeInnerProperties(insidePropertyTypes);
f@0: 		eShape.setFrame(super.anyInsideProperties() ? getOutBounds(dataDisplayBounds) : dataDisplayBounds );
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public void decode(Document doc, Element nodeTag) throws IOException{
f@0: 		super.decode(doc, nodeTag);
f@0: 		eShape.setFrame(super.anyInsideProperties() ? getOutBounds(dataDisplayBounds) : dataDisplayBounds );
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	protected void translateImplementation(Point2D p,double dx, double dy){
f@0: 		/* if we clicked on a property node, just move that one */
f@0: 		for(List<PropertyNode> pnList : propertyNodesMap.values())
f@0: 			for(PropertyNode pn : pnList)
f@0: 				if(pn.contains(p)){
f@0: 					pn.translate(dx, dy);
f@0: 					return;
f@0: 				}
f@0: 		eShape.setFrame(eShape.getX() + dx,
f@0: 		         eShape.getY() + dy, 
f@0: 		         eShape.getWidth(), 
f@0: 		         eShape.getHeight());
f@0: 		super.translateImplementation(p,dx, dy);
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public Rectangle2D getBounds() {
f@0: 		return eShape.getBounds2D();
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public Point2D getConnectionPoint(Direction d) {
f@0: 		return calculateConnectionPoint(d, getBounds());
f@0: 	}
f@0: 		
f@0: 	public static  Point2D calculateConnectionPoint(Direction d, Rectangle2D bounds){
f@0:         double a = bounds.getWidth() / 2;
f@0:         double b = bounds.getHeight() / 2;
f@0:         double x = d.getX();
f@0:         double y = d.getY();
f@0:         double cx = bounds.getCenterX();
f@0:         double cy = bounds.getCenterY();
f@0: 
f@0:         if (a != 0 && b != 0 && !(x == 0 && y == 0)){
f@0:             double t = Math.sqrt((x * x) / (a * a) + (y * y) / (b * b));
f@0:             return new Point2D.Double(cx + x / t, cy + y / t);
f@0:         }
f@0:         else{
f@0:             return new Point2D.Double(cx, cy);
f@0:         }
f@0: 	}
f@0: 
f@0: 	@Override
f@0: 	public Shape getShape() {
f@0: 		return eShape;
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public InputStream getSound(){
f@0: 		return sound;
f@0: 	}
f@0: 
f@0: 	@Override
f@0: 	public Object clone(){
f@0: 		EllipticalNode n = (EllipticalNode)super.clone();
f@0: 		n.eShape = (Ellipse2D.Double)eShape.clone();
f@0: 		return n;
f@0: 	}
f@0: 	
f@0: 	private Ellipse2D.Double eShape;
f@0: 	private static InputStream sound;
f@0: 	static{
f@0: 		sound = EllipticalNode.class.getResourceAsStream("audio/Ellipse.mp3");
f@0: 		SoundFactory.getInstance().loadSound(sound);
f@0: 	}
f@0: }
f@0: