view java/src/uk/ac/qmul/eecs/ccmi/simpletemplate/TriangularNode.java @ 8:ea7885bd9bff tip

fixed bug : render solid line as dotted/dashed when moving the stylus from dotted/dashed to solid

/*  
 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.simpletemplate;

import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.GeneralPath;
import java.awt.geom.Path2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Rectangle2D.Double;
import java.io.InputStream;
import java.util.List;

import uk.ac.qmul.eecs.ccmi.diagrammodel.NodeProperties;
import uk.ac.qmul.eecs.ccmi.gui.Direction;
import uk.ac.qmul.eecs.ccmi.sound.SoundFactory;

/**
 * 
 * A triangular shaped diagram node.
 *
 */
@SuppressWarnings("serial")
public class TriangularNode extends SimpleShapeNode {


	public TriangularNode(String typeName, NodeProperties properties) {
		super(typeName, properties);
		Rectangle2D dataBounds = getMinBounds();  
		dataDisplayBounds.setFrame(dataBounds);
		tShape = getOutShape(dataBounds);
		/* by building the shape around dataBounds which was at (0,0) the new bounds */
		/* are now negative, so we need to bring the new bounds back at (0,0)        */
		Rectangle2D bounds = getBounds();
		translateImplementation(new Point2D.Double(),0-bounds.getX(),0-bounds.getY());
	}
	
	@Override
	protected Rectangle2D getMinBounds(){
		Rectangle2D minBounds = super.getMinBounds();
		return  new Rectangle2D.Double(minBounds.getX(),minBounds.getY(),minBounds.getWidth()/2,minBounds.getHeight()/2); 
	}

	@Override
	public ShapeType getShapeType() {
		return ShapeType.Triangle;
	}
	
	@Override
	protected void translateImplementation(Point2D p, double dx, double dy){
		/* if we clicked on a property node, just move that one */
		for(List<PropertyNode> pnList : propertyNodesMap.values())
			for(PropertyNode pn : pnList)
				if(pn.contains(p)){
					pn.translate(dx, dy);
					return;
				}
		super.translateImplementation(p,dx, dy);
		tShape.transform(AffineTransform.getTranslateInstance(dx, dy));
	}

	public static Path2D.Double getOutShape(Rectangle2D r){
		Path2D.Double triangle = new Path2D.Double(GeneralPath.WIND_EVEN_ODD,3);
		double minEdge = Math.min(r.getWidth(), r.getHeight());
		triangle.moveTo(r.getCenterX(), r.getY()-minEdge);
		
		double angle = Math.atan(minEdge/(r.getWidth()/2));
		double w = r.getHeight()/ Math.tan(angle);
		triangle.lineTo(r.getX()-w, r.getMaxY());
		triangle.lineTo(r.getMaxX()+w, r.getMaxY());
		triangle.closePath();
		return triangle;
	}
	
	@Override
	protected void reshapeInnerProperties(List<String> insidePropertyTypes){
		nameLabel = new MultiLineString();
		nameLabel.setText(getName().isEmpty() ? " " : getName());
		nameLabel.setBold(true);
		
		if(!super.anyInsideProperties()){
			dataDisplayBounds.setFrame(dataDisplayBounds.getX(),
					dataDisplayBounds.getY(),
					nameLabel.getBounds().getWidth(),
					nameLabel.getBounds().getHeight());
			Rectangle2D minBounds = getMinBounds();
			dataDisplayBounds.add(new Rectangle2D.Double(dataDisplayBounds.getX(), dataDisplayBounds.getY(), minBounds.getWidth(),minBounds.getHeight()));
			tShape = getOutShape(dataDisplayBounds);
		}else {
			Rectangle2D r = nameLabel.getBounds();
			
			for(int i=0; i<insidePropertyTypes.size();i++){
				propertyLabels[i] = new MultiLineString();
		    	if(getProperties().getValues(insidePropertyTypes.get(i)).size() == 0){
		    		propertyLabels[i].setText(" ");
		    	}else{
		    		propertyLabels[i].setJustification(MultiLineString.LEFT);
		    		String[] a = new String[getProperties().getValues(insidePropertyTypes.get(i)).size()];
		    		propertyLabels[i].setText(getProperties().getValues(insidePropertyTypes.get(i)).toArray(a), getProperties().getModifiers(insidePropertyTypes.get(i)));
		    	}
		    	r.add(new Rectangle2D.Double(r.getX(),r.getMaxY(),propertyLabels[i].getBounds().getWidth(),propertyLabels[i].getBounds().getHeight()));
	    	}
			/* set a gap to uniformly distribute the extra space among property rectangles to reach the minimum bound's height */
			boundsGap = 0;
			Rectangle2D.Double minBounds = (Rectangle2D.Double)getMinBounds();
			if(r.getHeight() < minBounds.height){
				boundsGap = minBounds.height - r.getHeight();
				boundsGap /= insidePropertyTypes.size();
			}
			r.add(minBounds);
			dataDisplayBounds.setFrame(new Rectangle2D.Double(dataDisplayBounds.x,dataDisplayBounds.y,r.getWidth(),r.getHeight()));
			
			tShape = getOutShape(dataDisplayBounds);
		}

	}
	
	@Override
	public Double getBounds() {
		return (Double)tShape.getBounds2D();
	}
	
	@Override
	public InputStream getSound(){
		return sound;
	}

	@Override
	public Point2D getConnectionPoint(Direction d) {
		return calculateConnectionPoint(d,getBounds());
	}
	
	public static Point2D calculateConnectionPoint(Direction d, Rectangle2D bounds) {
		if(d.getX() == 0){
			return new Point2D.Double(bounds.getCenterX(), 
					d.getY() > 0 ? bounds.getY() : bounds.getMaxY());
		}
		
		boolean left = false;
		boolean right = false;
		double dirTan = d.getY()/d.getX();
		double boundsTan = bounds.getHeight()/bounds.getWidth();
		double alfa = Math.atan(dirTan);		
		double alfaDegrees = Math.toDegrees(alfa);
		
		if(d.getY() < 0){ //from the top
			if(alfaDegrees < 0) 
				right = true;
			else 
				left = true;
		}else{ //from the bottom
			if(dirTan < boundsTan && d.getX() > 0)
				right = true;
			else if(dirTan > -boundsTan && d.getX() < 0)
				left = true;
		}
		
		if(right){
			double beta = Math.atan(bounds.getHeight()/(bounds.getWidth()/2));
			double py = bounds.getHeight()/2;
			double x = py/ (Math.tan(alfa)-Math.tan(beta));
			double y = x * Math.tan(alfa);
			return new Point2D.Double(bounds.getCenterX()-x, bounds.getCenterY()-y);
		}
		else if(left){
			double beta = - Math.atan(bounds.getHeight()/(bounds.getWidth()/2));
			double py = bounds.getHeight()/2;
			double x = py/ (Math.tan(alfa)-Math.tan(beta));
			double y = x * Math.tan(alfa);
			return new Point2D.Double(bounds.getCenterX()-x, bounds.getCenterY()-y);
		}
		else{
			return new Point2D.Double(
					bounds.getCenterX() + ((bounds.getHeight()/2) * (d.getX()/d.getY()) ), 
					bounds.getMaxY());
		}
	}

	@Override
	public Shape getShape() {
		return tShape;
	}
	
	public Object clone(){
		return new TriangularNode(getType(),(NodeProperties)getProperties().clone());
	}
	
	private Path2D.Double tShape;
	private static InputStream sound;
	
	static {
		sound = TriangularNode.class.getResourceAsStream("audio/Triangle.mp3");
		SoundFactory.getInstance().loadSound(sound);
	}
}