/*
//Author: Nicholas Exner, C.2000 Exner Enterprises
<APPLET CODE="BoxPerim.class" WIDTH=400 HEIGHT=322></APPLET>
*/

import java.awt.*;
import java.applet.*;
import java.util.*;
import java.awt.event.*;

//public myownpaint(){
//	Graphics g = this.getGraphics();
//	g.drawLine(10,10,50,50);
//}

public class ManagePanel {
	Vector objVect;
	Grid grid;
	boolean drag;

	public ManagePanel() {
		objVect = new Vector();
	}

	public void addObj(Object x) {
		objVect.addElement(x);
	}

	public void show(Graphics g) {
		for (int i=0;i<objVect.size();i++) {
			Box c = (Box) objVect.elementAt(i);
			c.show(g);
		}
	}

	public void up(int x, int y) {
		for (int i=0;i<objVect.size();i++) {
	   		Box c = (Box) objVect.elementAt(i);
			if (c.select) {
				c.setX( ( (c.getX()-13) /BoxPerim.blocksize) *BoxPerim.blocksize+13);
				c.setY( ( (c.getY()-13)  /BoxPerim.blocksize) *BoxPerim.blocksize+13);
				try {
				if (grid.a[c.getX()/BoxPerim.blocksize][c.getY()/BoxPerim.blocksize])
					objVect.removeElementAt(i);	
				}catch(NullPointerException e){}
			}
			c.deselect();
			if (c.getX() < 111 || c.getX() > 360) {
				objVect.removeElementAt(i);	
			} else 
			if (c.getY() < 37 || c.getY() > 284) {
				objVect.removeElementAt(i);	
			}
		}
		enterGrid();
	}

	public int enterGrid() {
		grid = new Grid(100);
		for (int i=0;i<objVect.size();i++) {
	   		Box c = (Box) objVect.elementAt(i);
			grid.addBox(c.getX()/BoxPerim.blocksize,c.getY()/BoxPerim.blocksize);
		}
		grid.count();
		return grid.calcPerim();	
	}

	public void down(int x, int y) {
		for (int i=0;i<objVect.size();i++) {
			Box c = (Box) objVect.elementAt(i);
			 if (c.contact(x,y))
				c.select(x,y);
			 if (c.select)
				grid.a[c.getX()/BoxPerim.blocksize][c.getY()/BoxPerim.blocksize] = false;
				
		}
	}	

	public void drag(int x, int y) {
		for (int i=0;i<objVect.size();i++) {
			Box c = (Box)objVect.elementAt(i);		
	   		c.objectDrag(x,y);
		}
	}
} // End ManagePanel
//////////////////////////////////