Dreating ellips and connecting them

[Mekonom]

Hi here codes that draws on screen ellipses and connecting them together with lines..

package paint;

import javax.swing.JFrame;

/**
 *
 * @author Meko
 */
public class Main {

    public Main() {
      MainPanel selectablePanel = new MainPanel();
      ShapeControl control = new ShapeControl(selectablePanel);
      selectablePanel.addMouseListener(control);
      selectablePanel.addMouseMotionListener(control);
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(selectablePanel);
        f.setSize(400,400);
        f.setLocation(200,200);
    
        f.setVisible(true);
    }
  
    public static void main(String[] args) {
      new Main();
    }

}



public class MainPanel extends JPanel implements ActionListener {

    private JButton XvalueButton = new JButton("Circle");
    private JButton YvalueButton = new JButton("Draw");
    private JButton ZvalueButton = new JButton("Z");
    private ShapeControl shape = new ShapeControl(this);
    public boolean circleSelected, drawlineSelected, clicked;
    double LineCenter;
    double a, b;

    public MainPanel() {


        JPanel buttonPanel=new JPanel();

        circleSelected = false;
        drawlineSelected = false;

        XvalueButton.addActionListener(this);
        YvalueButton.addActionListener(this);
        ZvalueButton.addActionListener(this);
        setLayout(new BorderLayout());
        add(buttonPanel,BorderLayout.NORTH);
        buttonPanel.add(XvalueButton);
        buttonPanel.add(YvalueButton);
        buttonPanel.add(ZvalueButton);
        addMouseMotionListener(shape);
        addMouseListener(shape);
  
    }

    public void actionPerformed(ActionEvent e) {

        if (e.getSource() == XvalueButton) {
            circleSelected = true;
         
            clicked = true;
             for (int i = 0; i < shape.ellipsList.size(); i++) {
                MyEllips circle = (MyEllips) shape.ellipsList.get(i);
        circle.repaint();
          
            }
           

}
       if (e.getSource() == YvalueButton) {

            drawlineSelected = true;

        }
    }


  
}
      


public class MyEllips extends JPanel {
Point c ;
    int posX;
    int posY;
    int width =50;
    int height =50;

    public MyEllips(Point center) {
   
     c = center;

    }

    protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    int posX = c.x ;
        int posY = c.y;
        g.setColor(Color.BLUE);
        g.fillRect(posX, posY, width, height);
        g.setColor(Color.BLUE);
        g.drawRect(posX, posY, width, height);



    }




}


public class ShapeControl extends MouseInputAdapter {

    MainPanel selectablePanel;
    public boolean dragging, ChoosedBooth, firstClicked, secondClicked, lineSelected;
    Point selectedPoint;
    Line2D current_line;
   MyEllips selectedEllips;
    List lineList;
    List ellipsList;
    List pointList;
    Point mainPoint, a, b;

    public ShapeControl(MainPanel mp) {


        pointList = new ArrayList();
        ellipsList = new ArrayList();
        lineList = new ArrayList();

        selectablePanel = mp;

        dragging = false;
        firstClicked = false;
        secondClicked = false;

    }

    public void initLine(Point a, Point b) {

        lineList.add(new Line2D.Double(a, b));
        pointList.add(a);
        pointList.add(b);
    }

    public void initCircle(Point c) {
     
        MyEllips myellips = new MyEllips(c);
     // myellips.setPreferredSize(new Dimension(50,50));
       myellips.setLayout(new BoxLayout(myellips,BoxLayout.X_AXIS));
        myellips.setBackground(Color.red);
       

      ellipsList.add(myellips);
    selectablePanel.add(myellips);
      
      myellips.repaint();

    }

    @Override
    public void mouseClicked(MouseEvent e) {

        Point p = e.getPoint();
        if (selectablePanel.circleSelected) {
            if (selectablePanel.clicked) {
                Point center = new Point(e.getX(), e.getY());

                pointList.add(center);
                initCircle(center);
                selectablePanel.clicked = false;

          }
      }
        if (selectablePanel.drawlineSelected) {
            for (int j = 0; j < ellipsList.size(); j++) {
                MyEllips circle = (MyEllips) ellipsList.get(j);
                if (e.getClickCount() == 2) {
                    firstClicked = true;
                    if (firstClicked) {
                        Point point = (Point) pointList.get(j);
                        if (circle.contains(p)) {
                            a = point;
                            firstClicked = false;
                            secondClicked = true;
                        }
                    }
                } else if (secondClicked) {
                    Point point = (Point) pointList.get(j);
                    if (circle.contains(p)) {
                        b = point;
                        firstClicked = true;
                        secondClicked = false;
                        initLine(a, b);
                        for (int i = 0; i < lineList.size(); i++) {
                            Line2D.Double line = (Line2D.Double) lineList.get(i);
                            current_line = line;

                        }
                    }
                }
            }

        }

    }
int downX, downY;
Point movingPoint = null;

    public void mousePressed(MouseEvent e) {
       



        for (int j = 0; j < pointList.size(); j++) {
            Point point = (Point) pointList.get(j);
          

            if (e.getX() <= point.x + 25 && e.getX()>= point.x - 25 && e.getY() <= point.y + 25 &&e.getY()>= point.y - 25) {
           System.out.println("Found");
                downX = e.getX();
      downY = e.getY();
      movingPoint = point;
          
            }
        }
    }

    public void mouseReleased(MouseEvent e) {
     if (movingPoint != null) {
      movingPoint.x += e.getX() - downX;
      movingPoint.y += e.getY() - downY;
      movingPoint = null;
   

    }
         selectablePanel.repaint();
    }



}

My problem is It creates RedSquare and I can move it but When I resize screen IT draws all screnn red..It means MyEllips object is holl screen.And When I try to create new object with clickin button and screen It doenst show.I think it is behind of first created Jpanel ..What must I do?

[Mekonom]

no idea?:(

[zweibieren]

public class MyEllips extends JPanel

If each ellipse is a JPanel, typically only one will appear when drawn.

Instead: Have MyEllips be a simple object or a descendant of Ellipse2D.Double.
It will have a method

void drawMe(Graphics g) {}

Then MainPanel.paintComponent() will call drawMe for each point, line, and ellipse.

[Mekonom]

and in drawMe methot I will create Ellips2D and it wil be a object of MyEllips? then when I press mouse and add object of My Ellips class it will add this Ellips2d object?
or in My Ellips class I will create this Ellips 2d and this drawMe(Graphics g){} will be empty?

[zweibieren]

class MyEllips extends Ellipse2D.Double {
	MyEllips(ellipse parameters) {
		super(ellipse parameters);
	}
	void drawMe(Graphics g) {
		g.drawEllipse(ellipse parameters for drawing);
	}
}

Similarly for points and lines.
MainPanel.paintComponent() will call drawMe for each point, line, and ellipse.

{This will be my last response in this thread.}

[Mekonom]

thank for all helps :) regards...

[Mekonom]

Hi again..At least I done it work in a 3 months.and here codes :DThanks for helping:) (and how to change thread to SOLVED I dont know ...)

package paint;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
import java.awt.FlowLayout;
import javax.swing.JFrame;

/**
 *
 * @author Meko
 */
public class Main {

    public Main() {


        MainPanel selectablePanel = new MainPanel();
        ShapeControl control = new ShapeControl(selectablePanel);
        selectablePanel.addMouseListener(control);
        selectablePanel.addMouseMotionListener(control);
        JFrame f = new JFrame();

        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(selectablePanel);

        f.setSize(400, 400);
        f.setLocation(200, 200);

        f.setVisible(true);
    }

    public static void main(String[] args) {
        new Main();
    }
}



package paint;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import java.util.ArrayList;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JPanel;

/**
 *
 * @author Meko
 */
public class MainPanel extends JPanel implements ActionListener {

    private JButton XvalueButton = new JButton("Circle");
    private JButton YvalueButton = new JButton("Draw");
    private JButton ZvalueButton = new JButton("Z");
    private ShapeControl shape = new ShapeControl(this);
    public boolean circleSelected, drawlineSelected, clicked;
    double LineCenter;
    double a, b;

    public MainPanel() {


        circleSelected = false;
        drawlineSelected = false;

        XvalueButton.addActionListener(this);
        YvalueButton.addActionListener(this);
        ZvalueButton.addActionListener(this);


        add(XvalueButton);
        add(YvalueButton);
        add(ZvalueButton);
        addMouseMotionListener(shape);
        addMouseListener(shape);


    }

    public void actionPerformed(ActionEvent e) {

        if (e.getSource() == XvalueButton) {
            circleSelected = true;

            clicked = true;


        }

        if (e.getSource() == YvalueButton) {

            drawlineSelected = true;

        }
        if (e.getSource() == ZvalueButton) {

            System.out.println("" + shape.lineList.size());

        }
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);


        if (circleSelected) {

            for (int i = 0; i < shape.ellipsList.size(); i++) {
                MyEllips circle = (MyEllips) shape.ellipsList.get(i);

                circle.drawMe(g);



            }


        }
        if (drawlineSelected) {


            for (int i = 0; i < shape.lineList.size(); i++) {
                MyLine line = (MyLine) shape.lineList.get(i);
                line.drawMe(g);

            }
        }
        repaint();
    }
}

    

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package paint;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.geom.Ellipse2D;
import javax.swing.BorderFactory;
import javax.swing.JPanel;
import javax.swing.border.Border;

/**
 *
 * @author Meko
 */
public class MyEllips extends Ellipse2D.Double {
Point c ;
    int posX;
    int posY;
    int width =50;
    int height =50;

    public MyEllips(Point center) {
   
     c = center;

    }

   void drawMe(Graphics g) {
   
int posX = c.x ;
        int posY = c.y;
        g.setColor(Color.RED);
        g.fillOval(posX-25, posY-25, width, height);
        g.setColor(Color.RED);
        g.drawOval(posX-25, posY-25, width, height);



    }




}

package paint;

import java.awt.Graphics;
import java.awt.Point;
import java.awt.geom.Line2D;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 *
 * @author Meko
 */
public class MyLine extends Line2D.Double {

    Point a, b;
    int posX;
    int posY;
    int posX2;
    int posY2;

    public MyLine(Point up, Point down) {

        a = up;
        b = down;


    }

    void drawMe(Graphics g) {

        int posX = a.x;
        int posY = a.y;
        int posX2 = b.x;
        int posY2 = b.y;


        g.drawLine(posX, posY, posX2, posY2);


    }
}

package paint;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.MouseEvent;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Ellipse2D.Double;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.util.ArrayList;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.event.MouseInputAdapter;
import sun.awt.RepaintArea;

/**
 *
 * @author Meko
 */
public class ShapeControl extends MouseInputAdapter {

    MainPanel selectablePanel;
    public boolean dragging, ChoosedBooth, firstClicked, secondClicked, lineSelected;
    Point selectedPoint;
    MyLine current_line;
    MyEllips selectedEllips;
    List lineList;
    List ellipsList;
    List pointList;
    Point mainPoint, a, b;

    public ShapeControl(MainPanel mp) {


        pointList = new ArrayList();
        ellipsList = new ArrayList();
        lineList = new ArrayList();

        selectablePanel = mp;

        dragging = false;
        firstClicked = false;
        secondClicked = false;

    }

    public void initLine(Point a, Point b) {
        MyLine myline = new MyLine(a, b);
        lineList.add(myline);

        selectablePanel.repaint();
    }

    public void initCircle(Point c) {

        MyEllips myellips = new MyEllips(c);


        ellipsList.add(myellips);

        selectablePanel.repaint();

    }

    @Override
    public void mouseClicked(MouseEvent e) {
        Point p = e.getPoint();
        if (selectablePanel.circleSelected) {
            if (selectablePanel.clicked) {
                Point center = new Point(e.getX(), e.getY());

                pointList.add(center);
                initCircle(center);
                selectablePanel.clicked = false;

            }
        }
        if (selectablePanel.drawlineSelected) {
            for (int j = 0; j < ellipsList.size(); j++) {
                MyEllips circle = (MyEllips) ellipsList.get(j);

                if (e.getClickCount() == 2) {

                    firstClicked = true;
                    if (firstClicked) {
                        Point point = (Point) pointList.get(j);

                        if (e.getX() <= point.x + 25 && e.getX() >= point.x - 25 && e.getY() <= point.y + 25 && e.getY() >= point.y - 25) {
                            a = point;
                            firstClicked = false;
                            secondClicked = true;

                        }
                    }
                } else if (secondClicked) {
                    Point point = (Point) pointList.get(j);

                    if (e.getX() <= point.x + 25 && e.getX() >= point.x - 25 && e.getY() <= point.y + 25 && e.getY() >= point.y - 25) {
                        b = point;
                        firstClicked = true;
                        secondClicked = false;

                        initLine(a, b);

                    }
                }
            }

        }

    }
    int downX, downY;
    Point movingPoint = null;

    public void mousePressed(MouseEvent e) {

        for (int j = 0; j < pointList.size(); j++) {
            Point point = (Point) pointList.get(j);


            if (e.getX() <= point.x + 25 && e.getX() >= point.x - 25 && e.getY() <= point.y + 25 && e.getY() >= point.y - 25) {

                downX = e.getX();
                downY = e.getY();
                movingPoint = point;

            }
        }
    }

    public void mouseReleased(MouseEvent e) {
        if (movingPoint != null) {
            movingPoint.x += e.getX() - downX;
            movingPoint.y += e.getY() - downY;
            movingPoint = null;


        }

    }
}