//This program was part of coursework to 
//implement and understand and relates to mouse
//events and drawing rectangles and lines from one point
//to another


import java.awt.*;//Point,Graphics
import java.awt.event.*;//interface
import javax.swing.*;//JPanel,JFrame
import java.util.*;


public class MyMouseEvents    extends JPanel 
    implements MouseMotionListener , MouseListener, ActionListener
       {
        final static int max=1000;
        Point[] p= new Point[max];
        int ncount=0;
        
        JButton b1 = new JButton("button1");
        JButton b2 = new JButton("button2");
        
        public MyMouseEvents(){
         	addMouseListener(this);  addMouseMotionListener(this);
                add(b1);
                add(b2);
                b1.addActionListener(this);
                b2.addActionListener(this);
        }
        
        
        public void actionPerformed(ActionEvent e){
            System.out.println("Button  pressed");
            if(e.getSource()==b1){
                System.out.println("Button 1 pressed");
                sortx();
            }
            if(e.getSource()==b2){
                System.out.println("Button2 pressed");
                
            }
        }
        //HERE'S THE SORT CODE
        
        public void sortx(){
            MyComparatorX com= new MyComparatorX();
            Arrays.sort(p,0,ncount,com);
            repaint();
        }
       
        private class MyComparatorX implements Comparator<Point>{
            public final int compare(Point a, Point b){
                int x1=a.x;
                int x2=b.x;
                return x1-x2; //sorts from right to left
            
            }
        }
        
        public void mouseClicked(MouseEvent event){}
        public void mouseEntered(MouseEvent event){}
        public void mouseExited(MouseEvent event){}
        private int buttonpressed;
        private int index=-1;
        private int foundIndex=-1;
        public void mousePressed(MouseEvent e){ 
            buttonpressed=e.getButton();
        	if(e.getButton()==e.BUTTON3){ncount=0;}
        	else if(e.getButton()==e.BUTTON1){ //add to array store 
        		if(ncount<max){
        			p[ncount++]=e.getPoint();
        		}
        	}
                else if(e.getButton()==e.BUTTON2){//find in array
                    int minx, maxx, miny, maxy;
                    minx=e.getX()-20;
                    maxx=e.getX()+20;
                    miny=e.getY()-20;
                    maxy=e.getY()+20;
                    
                    for (int i=0;i<ncount;i++){
                        if(p[i].x>minx && p[i].x<maxx){
                            //found the x
                            if(p[i].y>miny && p[i].y<maxy){
                                //look for y
                               foundIndex=i;
                               p[foundIndex]=e.getPoint();
                                repaint();
                            }
                        }
                        
        		
                       
                    }
                }
        }
        public void mouseReleased(MouseEvent event){ foundIndex=-1;repaint();}
 

        public void mouseMoved(MouseEvent e){}
        public void mouseDragged(MouseEvent e){
            int dragButton=e.getButton();//naugtty
            System.out.println("dragButton="+dragButton);//naughty
           // if(true/* test for room in array*/) 
            if(buttonpressed==e.BUTTON1){
                if(ncount<max){
                    p[ncount++]=e.getPoint();
                }
            }
            if(buttonpressed==e.BUTTON2){//at the index 
                if(foundIndex!= -1){
                    p[foundIndex]=e.getPoint();
                    repaint();
                }
            }
        //*add point to array store* ;
        }
		
        public void paintComponent(Graphics g){
        	super.paintComponent(g);

            for(int i=0;i<ncount;i++){
            	g.drawRect(p[i].x ,p[i].y,20,20);
                g.drawString("p["+i+"]"+"x["+p[i].x+"y["+p[i].y     ,p[i].x ,p[i].y);
            }
          // /* 
           for(int i=0; i<ncount-1;i++){
               for(int j=i+1;j<ncount;j++){//note add1 to i
                  g.drawLine(p[i].x,p[i].y, p[j].x,p[j].y);
               }
           }
          // */
            /*    
             int i=0;   
             while(i<ncount){
               int j=i+1;
               while(j<ncount){//note add1 to i
                  g.drawLine(p[i].x,p[i].y, p[j].x,p[j].y);
                  j++;
               }
               i++;
             }
             */
             /*   
             //we must test the array first to see if there's anything in it
                //because do while draws first then tests. 
             if(ncount>=2){//we must have two points to draw a line
                    
               
                 int i=0;   
                 do{
                   int j=i+1; 
                   do{//note add1 to i
                     g.drawLine(p[i].x,p[i].y, p[j].x,p[j].y);
                      j++;
                   }while(j<ncount);
                   i++;
                 }while( i<ncount-1);//theprob
             }
            */    
        }



	public static void main(String[] args){
		JFrame f =new	JFrame("MyMouseEvents");
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.setSize(600,600);
		f.getContentPane().add(new MyMouseEvents());
		f.setVisible(true);
		
	}
}