Problem in moving Rotated Shape object

Question

Hi All,
I want to move the rotated shape object based on the mouse movement
m able to move the object which is not rotated, but m facing the problem when i move the rotated object its moving position is not correct . I am expecting to maintain both shape objects movement is same, i mean if i did mouse movement to right rotated object moves upwards and normal object moves towards right insted of moving both r moving towards to right.
Pls help me
the following code is m using to moving the object
The one which in red color is not rotated and the one which is in black color has rotated.
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import com.clinapps.LDPConstants;
public class MoveRotatedObj extends JFrame
     public MoveRotatedObj()
          JPanel pane = new Dorairaj();
          add(pane);
     public static void main(String[] args)
          MoveRotatedObj f = new MoveRotatedObj();
          f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          f.setSize(400, 400);
          f.setLocation(200, 200);
          f.setVisible(true);
     static class Dorairaj extends JPanel
          implements
               MouseListener,
               MouseMotionListener
          Shape o = null;
          Rectangle2D rect = new Rectangle2D.Double(
               10, 10, 100, 100);
          Graphics2D g2 = null;
          boolean flag = true;
          int x=10,y=10,x1, y1, x2, y2;
          AffineTransform af = new AffineTransform();
          AffineTransform originalAt = new AffineTransform();
          int origin = 0;
          public Dorairaj()
               addMouseListener(this);
               addMouseMotionListener(this);
          protected void paintComponent(Graphics g)
               super.paintComponent(g);
               g2 = (Graphics2D) g;
               g2.draw(new Rectangle2D.Double(0,0,500,500));
               g2.translate(origin, origin);
               g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                    RenderingHints.VALUE_ANTIALIAS_ON);
               rect = new Rectangle2D.Double(
                    x, y, 150, 100);
               g2.setColor(Color.RED);
               g2.draw(rect);
               g2.setColor(Color.black);
               originalAt = g2.getTransform();
               g2.rotate(Math.toRadians(270), 200, 200);               
               g2.draw(rect);
               g2.setTransform(originalAt);
          * Invoked when a mouse button has been pressed on a component.
          public void mousePressed(MouseEvent e)
               e.translatePoint(-origin, -origin);
               x1 = e.getX();
               y1 = e.getY();
          public void mouseDragged(MouseEvent e)
               x2 = e.getX();
               y2 = e.getY();
               x = x + x2 - x1;
               y = y + y2 - y1;
               x1 = x2;
               y1 = y2;
               repaint();
          public void mouseMoved(MouseEvent e)
          * Invoked when the mouse button has been clicked (pressed and released)
          * on a component.
          public void mouseClicked(MouseEvent e)
               repaint();
          * Invoked when a mouse button has been released on a component.
          public void mouseReleased(MouseEvent e)
          * Invoked when the mouse enters a component.
          public void mouseEntered(MouseEvent e)
          * Invoked when the mouse exits a component.
          public void mouseExited(MouseEvent e)
Edited by: DoraiRaj on Sep 16, 2009 12:51 PM
Edited by: DoraiRaj on Sep 16, 2009 1:00 PM
Edited by: DoraiRaj on Sep 16, 2009 1:07 PM

Answer 1

Thanks for replay and suggestion morgalr,
I mean MoveRotatedObj1 is MoveRotatedObj only jsut m maintaing a copy on my system like MoveRotatedObj1.
finally i solved my problem like this ,
Is this correct approach m followinig or not pls let me know .
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import com.clinapps.LDPConstants;
public class MoveRotatedObj extends JFrame
public MoveRotatedObj()
  JPanel pane = new Dorairaj();
  add(pane);
public static void main(String[] args)
  MoveRotatedObj f = new MoveRotatedObj();
  f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  f.setSize(400, 400);
  f.setLocation(200, 200);
  f.setVisible(true);
static class Dorairaj extends JPanel
  implements
   MouseListener,
   MouseMotionListener
  Shape o = null;
  Rectangle2D rect = new Rectangle2D.Double(
   10, 10, 100, 100);
  Rectangle2D rect1 = new Rectangle2D.Double(
   10, 10, 100, 100);
  Graphics2D g2 = null;
  boolean flag = true;
  double lx, ly;
  int x = 10, y = 10, x1, y1, x2, y2;
  int l = 20, m = 20;
  int angle = 270;
  AffineTransform af = new AffineTransform();
  AffineTransform originalAt = new AffineTransform();
  int origin = 0;
  public Dorairaj()
   addMouseListener(this);
   addMouseMotionListener(this);
  protected void paintComponent(Graphics g)
   super.paintComponent(g);
   g2 = (Graphics2D) g;
   g2.draw(new Rectangle2D.Double(
    0, 0, 500, 500));
   g2.translate(origin, origin);
   g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
    RenderingHints.VALUE_ANTIALIAS_ON);
   rect = new Rectangle2D.Double(
    x, y, 150, 100);
   g2.setColor(Color.RED);
   g2.draw(rect);
   rect1 = new Rectangle2D.Double(
    l, m, 150, 100);
   g2.setColor(Color.black);
   originalAt = g2.getTransform();
   g2.rotate(Math.toRadians(angle), 200, 200);
   g2.draw(rect1);
   g2.setTransform(originalAt);
  public void mousePressed(MouseEvent e)
   e.translatePoint(-origin, -origin);
   x1 = e.getX();
   y1 = e.getY();
  public void mouseDragged(MouseEvent e)
   boolean left, right, up, bottm;
   int dx, dy;
   left = right = up = bottm = false;
   x2 = e.getX();
   y2 = e.getY();
   dx = x2 - x1;
   dy = y2 - y1;
   x = x + dx;
   y = y + dy;
   up = dy < 0;
   bottm = dy > 0;
   left = dx < 0;
   right = dx > 0;
   if (left || right)
    // b += dx;
    m += dx;
   if (up || bottm)
    // a -= dy;
    l -= dy;
   x1 = x2;
   y1 = y2;
   repaint();
  public void mouseMoved(MouseEvent e)
  public void mouseClicked(MouseEvent e)
   repaint();
  public void mouseReleased(MouseEvent e)
  public void mouseEntered(MouseEvent e)
  public void mouseExited(MouseEvent e)
}