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.AffineTransform;
f@0: import java.awt.geom.GeneralPath;
f@0: import java.awt.geom.Path2D;
f@0: import java.awt.geom.Point2D;
f@0: import java.awt.geom.Rectangle2D;
f@0: import java.awt.geom.Rectangle2D.Double;
f@0: import java.io.InputStream;
f@0: import java.util.List;
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:  * A triangular shaped diagram node.
f@0:  *
f@0:  */
f@0: @SuppressWarnings("serial")
f@0: public class TriangularNode extends SimpleShapeNode {
f@0: 
f@0: 
f@0: 	public TriangularNode(String typeName, NodeProperties properties) {
f@0: 		super(typeName, properties);
f@0: 		Rectangle2D dataBounds = getMinBounds();  
f@0: 		dataDisplayBounds.setFrame(dataBounds);
f@0: 		tShape = getOutShape(dataBounds);
f@0: 		/* by building the shape around dataBounds which was at (0,0) the new bounds */
f@0: 		/* are now negative, so we need to bring the new bounds back at (0,0)        */
f@0: 		Rectangle2D bounds = getBounds();
f@0: 		translateImplementation(new Point2D.Double(),0-bounds.getX(),0-bounds.getY());
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	protected Rectangle2D getMinBounds(){
f@0: 		Rectangle2D minBounds = super.getMinBounds();
f@0: 		return  new Rectangle2D.Double(minBounds.getX(),minBounds.getY(),minBounds.getWidth()/2,minBounds.getHeight()/2); 
f@0: 	}
f@0: 
f@0: 	@Override
f@0: 	public ShapeType getShapeType() {
f@0: 		return ShapeType.Triangle;
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: 		super.translateImplementation(p,dx, dy);
f@0: 		tShape.transform(AffineTransform.getTranslateInstance(dx, dy));
f@0: 	}
f@0: 
f@0: 	public static Path2D.Double getOutShape(Rectangle2D r){
f@0: 		Path2D.Double triangle = new Path2D.Double(GeneralPath.WIND_EVEN_ODD,3);
f@0: 		double minEdge = Math.min(r.getWidth(), r.getHeight());
f@0: 		triangle.moveTo(r.getCenterX(), r.getY()-minEdge);
f@0: 		
f@0: 		double angle = Math.atan(minEdge/(r.getWidth()/2));
f@0: 		double w = r.getHeight()/ Math.tan(angle);
f@0: 		triangle.lineTo(r.getX()-w, r.getMaxY());
f@0: 		triangle.lineTo(r.getMaxX()+w, r.getMaxY());
f@0: 		triangle.closePath();
f@0: 		return triangle;
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	protected void reshapeInnerProperties(List<String> insidePropertyTypes){
f@0: 		nameLabel = new MultiLineString();
f@0: 		nameLabel.setText(getName().isEmpty() ? " " : getName());
f@0: 		nameLabel.setBold(true);
f@0: 		
f@0: 		if(!super.anyInsideProperties()){
f@0: 			dataDisplayBounds.setFrame(dataDisplayBounds.getX(),
f@0: 					dataDisplayBounds.getY(),
f@0: 					nameLabel.getBounds().getWidth(),
f@0: 					nameLabel.getBounds().getHeight());
f@0: 			Rectangle2D minBounds = getMinBounds();
f@0: 			dataDisplayBounds.add(new Rectangle2D.Double(dataDisplayBounds.getX(), dataDisplayBounds.getY(), minBounds.getWidth(),minBounds.getHeight()));
f@0: 			tShape = getOutShape(dataDisplayBounds);
f@0: 		}else {
f@0: 			Rectangle2D r = nameLabel.getBounds();
f@0: 			
f@0: 			for(int i=0; i<insidePropertyTypes.size();i++){
f@0: 				propertyLabels[i] = new MultiLineString();
f@0: 		    	if(getProperties().getValues(insidePropertyTypes.get(i)).size() == 0){
f@0: 		    		propertyLabels[i].setText(" ");
f@0: 		    	}else{
f@0: 		    		propertyLabels[i].setJustification(MultiLineString.LEFT);
f@0: 		    		String[] a = new String[getProperties().getValues(insidePropertyTypes.get(i)).size()];
f@0: 		    		propertyLabels[i].setText(getProperties().getValues(insidePropertyTypes.get(i)).toArray(a), getProperties().getModifiers(insidePropertyTypes.get(i)));
f@0: 		    	}
f@0: 		    	r.add(new Rectangle2D.Double(r.getX(),r.getMaxY(),propertyLabels[i].getBounds().getWidth(),propertyLabels[i].getBounds().getHeight()));
f@0: 	    	}
f@0: 			/* set a gap to uniformly distribute the extra space among property rectangles to reach the minimum bound's height */
f@0: 			boundsGap = 0;
f@0: 			Rectangle2D.Double minBounds = (Rectangle2D.Double)getMinBounds();
f@0: 			if(r.getHeight() < minBounds.height){
f@0: 				boundsGap = minBounds.height - r.getHeight();
f@0: 				boundsGap /= insidePropertyTypes.size();
f@0: 			}
f@0: 			r.add(minBounds);
f@0: 			dataDisplayBounds.setFrame(new Rectangle2D.Double(dataDisplayBounds.x,dataDisplayBounds.y,r.getWidth(),r.getHeight()));
f@0: 			
f@0: 			tShape = getOutShape(dataDisplayBounds);
f@0: 		}
f@0: 
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public Double getBounds() {
f@0: 		return (Double)tShape.getBounds2D();
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 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: 		if(d.getX() == 0){
f@0: 			return new Point2D.Double(bounds.getCenterX(), 
f@0: 					d.getY() > 0 ? bounds.getY() : bounds.getMaxY());
f@0: 		}
f@0: 		
f@0: 		boolean left = false;
f@0: 		boolean right = false;
f@0: 		double dirTan = d.getY()/d.getX();
f@0: 		double boundsTan = bounds.getHeight()/bounds.getWidth();
f@0: 		double alfa = Math.atan(dirTan);		
f@0: 		double alfaDegrees = Math.toDegrees(alfa);
f@0: 		
f@0: 		if(d.getY() < 0){ //from the top
f@0: 			if(alfaDegrees < 0) 
f@0: 				right = true;
f@0: 			else 
f@0: 				left = true;
f@0: 		}else{ //from the bottom
f@0: 			if(dirTan < boundsTan && d.getX() > 0)
f@0: 				right = true;
f@0: 			else if(dirTan > -boundsTan && d.getX() < 0)
f@0: 				left = true;
f@0: 		}
f@0: 		
f@0: 		if(right){
f@0: 			double beta = Math.atan(bounds.getHeight()/(bounds.getWidth()/2));
f@0: 			double py = bounds.getHeight()/2;
f@0: 			double x = py/ (Math.tan(alfa)-Math.tan(beta));
f@0: 			double y = x * Math.tan(alfa);
f@0: 			return new Point2D.Double(bounds.getCenterX()-x, bounds.getCenterY()-y);
f@0: 		}
f@0: 		else if(left){
f@0: 			double beta = - Math.atan(bounds.getHeight()/(bounds.getWidth()/2));
f@0: 			double py = bounds.getHeight()/2;
f@0: 			double x = py/ (Math.tan(alfa)-Math.tan(beta));
f@0: 			double y = x * Math.tan(alfa);
f@0: 			return new Point2D.Double(bounds.getCenterX()-x, bounds.getCenterY()-y);
f@0: 		}
f@0: 		else{
f@0: 			return new Point2D.Double(
f@0: 					bounds.getCenterX() + ((bounds.getHeight()/2) * (d.getX()/d.getY()) ), 
f@0: 					bounds.getMaxY());
f@0: 		}
f@0: 	}
f@0: 
f@0: 	@Override
f@0: 	public Shape getShape() {
f@0: 		return tShape;
f@0: 	}
f@0: 	
f@0: 	public Object clone(){
f@0: 		return new TriangularNode(getType(),(NodeProperties)getProperties().clone());
f@0: 	}
f@0: 	
f@0: 	private Path2D.Double tShape;
f@0: 	private static InputStream sound;
f@0: 	
f@0: 	static {
f@0: 		sound = TriangularNode.class.getResourceAsStream("audio/Triangle.mp3");
f@0: 		SoundFactory.getInstance().loadSound(sound);
f@0: 	}
f@0: }