LAddNode.java

package com.pixelmaid.dresscode.antlr.types.tree.functions;


import java.util.List;

import com.pixelmaid.dresscode.antlr.types.VarType;
import com.pixelmaid.dresscode.antlr.types.tree.DCNode;
import com.pixelmaid.dresscode.antlr.types.tree.NodeEvent;
import com.pixelmaid.dresscode.drawing.datatype.Point;
import com.pixelmaid.dresscode.drawing.primitive2d.Drawable;
import com.pixelmaid.dresscode.drawing.primitive2d.Polygon;

public class LAddNode extends NodeEvent implements DCNode {

	protected List<DCNode> params;
	protected int line;


	public LAddNode(List<DCNode> ps, int l) {
		params= ps;
		line = l;

	}

	//TODO:address this with grouping of drawables and identifers.
	@Override
	public VarType evaluate() {
		if(params.size()>=2){

			VarType a = params.get(0).evaluate();
			VarType b = params.get(1).evaluate();

			// number + number
			if(params.size()==2){
				if(a.isDrawable() && b.isDrawable()) {
					Drawable d1 = a.asDrawable();
					Drawable d2 = b.asDrawable();
					d1.addToGroup(d2);
					d1.setLine(line);
					return new VarType(d1);
				}

				if(a.isDrawable() && b.isPoint()) {

					Point p = b.asPoint();
					Drawable pl = null;
					if(a.isEllipse()){
						pl = a.asEllipse().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isRectangle()){
						pl = a.asRectangle().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isLine()){
						pl = a.asLine().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isCurve()){
						pl = a.asCurve().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isPolygon()){
						pl = a.asPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isDrawable()){
						pl = a.asDrawable();
						pl.addToGroup(p.toDrawable());
					}
					if(pl!=null){
						pl.setLine(line);
						return new VarType(pl);
					}
				}


				// list + any
				if(a.isList()) {
					List<VarType> list = a.asList();
					list.add(b);
					return new VarType(list);
				}

				// string + any
				if(a.isString()&& b.isString()) {
					return new VarType(a.asString() + "" + b.toString());
				}


			}
			else if(params.size()==3){
				
				VarType c = params.get(2).evaluate();

				if(b.isNumber()&&c.isNumber()){
					Point p = new Point(b.asDouble(),c.asDouble());
					Drawable pl = null;
					if(a.isEllipse()){
						pl = a.asEllipse().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isRectangle()){
						pl = a.asRectangle().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isLine()){
						pl = a.asLine().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isCurve()){
						pl = a.asCurve().toPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isPolygon()){
						pl = a.asPolygon();
						((Polygon)pl).addDynamicPoint(p);
					}
					else if(a.isDrawable()){
						pl = a.asDrawable();
						pl.addToGroup(p.toDrawable());
					}
					if(pl!=null){
						pl.setLine(line);
						return new VarType(pl);
					}
				}
				else if(c.isNumber()){
					int index = c.asDouble().intValue();
					if(a.isDrawable() && b.isDrawable()) {
						Drawable d1 = a.asDrawable();
						Drawable d2 = b.asDrawable();
						d1.addToGroup(d2,index);
						d1.setLine(line);
						return new VarType(d1);
					}

					// list + any
					if(a.isList()) {
						List<VarType> list = a.asList();
						list.add(index,b);
						return new VarType(list);
					}

					// string + any
					if(a.isString()&&b.isString()) {

						return new VarType(a.asString().substring(0,index) + b.asString()+a.asString().substring(index,a.asString().length()));
					}


				}
			}
		
		}

		throw new RuntimeException("illegal expression: " + this);
	}


}