MouseDragg

[shalini gnana]

I have drawn number of drawn a rectangles by taking x,y & width from lists..
Now i want to dragg all those rectangle..how can i do it?

 public class DrawChart extends JApplet{
 intx,y,w,h;
Rectangle r = new Rectangle(x,y,w,h);
 
 public void draw(Graphics g)
        {
            Graphics2D g2 = (Graphics2D)g;
            g2.setPaint(new Color(0, 128, 192));
          
for(int i=0;i<x_cord_list.size();i++)
            {
                int x = x_cord_list.get(i);
                int y = y_cord_list.get(i);
                int width = width_list.get(i);
                r.setBounds(x,y,width,15);
                g2.draw(r);
                g2.fill(r);
            }
            
            
        }
 
public void paintComponents(Graphics g)
{
Graphics2D g2 = (Graphics2D)g;
draw(g2);
}
}
 
   

[Ulf Dittmer]

You'd need to add a MouseMotionListener that can detect when the mouse is clicked and dragged. In the mouseDragged method you'd need to check whether the (x,y) coordinate of the mouse click was on the border (or the vicinity of a border) of one of the rectangles. If it was, you'd start to change the coordinates of the rectangle (and repaint the screen). You don't need to check for when the mouse button gets released - the JVM will just stop calling the mouseDragged method.

[shalini gnana]

I tried in the same way...But its not working...Why its so..

    public void mousePressed(MouseEvent e) {
            
           
            Point p = e.getPoint();
            
           if(r.contains(p))
           {
               canDrag = true;
           }
           else
           {
                canDrag = false;
           }
        }
//      
public void mouseDragged(MouseEvent e){
           int muse_x = e.getX();
            int muse_y = e.getY();
            
            Point  p = e.getPoint();
            boolean canDrag1 = canDrag;
            if(canDrag1 == true)
            {
                rect_x = muse_x;
                this.repaint(); 
                // Repaint because position changed.
            }
        }

[Ulf Dittmer]

Shalini, I believe we already came to the conclusion that "its not working" is not an adequate description of a problem. You need to tell us what is happening.

You don't need the mousePressed method. mouseDragged will only be called if the mouse button is down, so you can perform the check for containment then.

What is the code for drawing the rectangle?

[shalini gnana]

code for drawing the rectangle:

   public class DrawChart extends JApplet
{
//some code
 
class ImagePanel extends JPanel
{
 intx,y,w,h;
Rectangle r = new Rectangle(x,y,w,h);
 
 public void draw(Graphics g)
        {
            Graphics2D g2 = (Graphics2D)g;
            g2.setPaint(new Color(0, 128, 192));
          
for(int i=0;i<x_cord_list.size();i++)
            {
                int x = x_cord_list.get(i);
                int y = y_cord_list.get(i);
                int width = width_list.get(i);
                r.setBounds(x,y,width,15);
                g2.draw(r);
                g2.fill(r);
            }
            
            
        }
 
public void paintComponents(Graphics g)
{
Graphics2D g2 = (Graphics2D)g;
draw(g2);
}
} 

if i dragg the rectangle drawing its not getting dragged..
so you want me to use mousecliked method for the code to work?

[Ulf Dittmer]

One thing that jumps out is that the method to paint in Swing is called paintComponent, not paintComponents.

How are you changing the x/y position of the rectangle that is being moved? You must have code somewhere that iterates through the list of rectangles to determine which one should be moved.
[ February 25, 2008: Message edited by: Ulf Dittmer ]

[shalini gnana]

Sorry,sir..I'm not getting what your trying to say..
I'm not using any list for rectangles...I'm using only for x
and y co-ordinates

[Ulf Dittmer]

I'm not using any list for rectangles

Yes you are, according to the code you posted:

int x = x_cord_list.get(i);
int y = y_cord_list.get(i);
int width = width_list.get(i);

So unless you change what is stored in those lists, you will always paint at the same coordinates.

[shalini gnana]

I can able to drag but the problem is,
the old drawing is remaining in the same
position...how can i solve this?whats the way to change the old
position to the new one

    
Rectangle clickedRectangle = null;
.....
public void getCord(MouseEvent e)
{
    for(int i=0;i<x_cord_list.size();i++)
    {
        Rectangle rect = new Rectangle(x_cord_list.get(i),y_cord_list.get(i),width_list.get(i),15);
        rectangles.add(rect);
       // System.out.println;
    }
    //Point p = new Point(x_cord_list,y_cord_list);
    
}
public void drawdig(Graphics g){
    Graphics2D g2 = (Graphics2D)g;
    //for(int i=0;i<rectangles.size();i++)
    System.out.println(rectangles.size()+"SIZE");
    for(Rectangle ret : rectangles)
    {
        g2.draw(ret);
        g2.fill(ret);
    }
}
 
        public void mousePressed(MouseEvent e) {
            
           
            Point p = e.getPoint();
            for(Rectangle rct : rectangles){
               if(rct.contains(p)) 
               {
                   clickedRectangle = rct;
                   this.repaint();
               }
            }
        }
public void mouseDragged(MouseEvent e)
        {
        int muse_x = e.getX();
        int muse_y = e.getY();
        int rect = this.rect_x;
        Point  p = e.getPoint();
        if(clickedRectangle!= null){
            clickedRectangle.setLocation(muse_x,muse_y);
            this.repaint();
        }

[Ulf Dittmer]

Where is "drawdig" called - from within paintComponent? Is that all it does?
[ February 25, 2008: Message edited by: Ulf Dittmer ]

[shalini gnana]

Yes,its called inside the paintComponent()...

    ..........
public Date [] drawwrk(Graphics g)
{
....
Rectangle rt = new Rectangle(x_cord,y_axis,width,15);
rectangles.add(rt);
 
//returning date  array
}
 
//drawing to the panel
public void drawdig(Graphics g)
{
Graphics2D g2 = (Graphics2D)g;
for(Rectangle ret : rectangles)
{
g2.draw(ret);
g2.fill(ret);
}
}
 
public void mousePressed(MouseEvent e)
{
Point p = e.getPoint();
for(Rectangle rct : rectangles)
{
if(rct.contains(p)) 
{
clickedRectangle = rct;
this.repaint();
}
}
}
    
public void mouseDragged(MouseEvent e)
{
int muse_x = e.getX();
int muse_y = e.getY();

Point  p = e.getPoint();
if(clickedRectangle!= null)
{
clickedRectangle.setLocation(muse_x,muse_y);
this.repaint();

}
}
 
public void paintComponent(Graphics g)
{
Graphics2D g2 = (Graphics2D)g;
.......
drawdig(g2);
}

[Ulf Dittmer]

I just noticed that you aren't clearing the area first. If you do the drawing yourself in paintComponent then you need to do that. Put something like the following at the top of the drawing method (I took this straight out of the Swing Tutorial, which you should really work through):

g.setColor(getBackground());
g.fillRect(0, 0, getWidth(), getHeight());
g.setColor(getForeground());

Why are you still keeping the mousePressed method? That needlessly complicates the code and makes it more brittle.

[shalini gnana]

I have some doubt...
1.why should i have to do that?
2.should i have to add those codes to the
paintComponent() or to drawdig()...
3.should i have to use mouseCliked() method or
some other...
please help me out?


If i drag a rectangle,the old position should
be moved to a new mouse position and repainteed..
In my case,only a copy of the rectangle is painted in
a new mouse position..and the old position is not
repainted..
[ February 26, 2008: Message edited by: shalini gnana ]

[Ulf Dittmer]

1.why should i have to do that?

What is the "that" you're referring to?

2.should i have to add those codes to the paintComponent() or to drawdig()...

I'm not sure what "those codes" refers to, but it doesn't really matter in which method the painting occurs, as long as it's called from paintComponent.

3.should i have to use mouseCliked() method or some other...

Please read what I posted earlier. I've now said repeatedly that you need to implement mouseDragged, but not mousePressed (or any other Mouse[Motion]Listener methods).

If i drag a rectangle,the old position should be moved to a new mouse position and repainteed.. In my case,only a copy of the rectangle is painted in a new mouse position..and the old position is not repainted..

Is your code now clearing the drawing area as I suggested in my previous post?

[shalini gnana]

1.I were talking about the code:

g.setColor(getBackground());
g.fillRect(0, 0, getWidth(), getHeight());
g.setColor(getForeground());

2.I'm using the mouseDragged method in my code:

    
     public void mouseDragged(MouseEvent e)
        {
            int muse_x = e.getX();
            int muse_y = e.getY();
           // if((canDrag == true) ){
            if( clickedRectangle!= null )
            {
                for(Rectangle rt : rectangles)
                {
                    //int x = clickedRectangle.
                    int y = (int)clickedRectangle.getY();
                    clickedRectangle.setLocation(muse_x,(int)clickedRectangle.getY()); 
                    //clickedRectangle.setLocation(muse_x,muse_y);
                    this.repaint();
                }
            }
        
        }

3.I don't have idea,how to clear the old position..Please help me...

[Ulf Dittmer]

1.I were talking about the code:

3.I don't have idea,how to clear the old position..

#1 (which is the code that clears the component) answers #3. That code should be the first thing you do in the paintComponent method.

2.I'm using the mouseDragged method in my code

But you still have this "clickedRectangle" object that is set somewhere else - if your current code still has a mousePressed method, delete it now.

[shalini gnana]

I had removed that mousePressed method..Even then i'm encountered with the same problem...Please help me to rectify it..I'm completely blank

[Ulf Dittmer]

Post the complete paintComponent and mouseDragged methods so we can have a look at it.

[shalini gnana]

 protected void paintComponent(Graphics g)
        {
            super.paintComponent(g);
            Graphics2D g2 = (Graphics2D)g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
            
            g.setColor(getBackground());
            g.fillRect(0, 0, getWidth(), getHeight());
            g.setColor(getForeground());
 
 
            if(drawpanel){drawPanel(g2);}
            if(drawresource){drawResource(g2);}
            if(drawcalender)
            {
                drawCalendar(g2);
            }
            
            drawdig(g2);
        }
        
         public void drawdig(Graphics g)
        {
            Graphics2D g2 = (Graphics2D)g;
            g2.setPaint(new Color(0,157,250));
            System.out.println(rectangles.size()+"SIZE");
            /*rectangles:list containing the all rectangles to be drawn*/
            for(Rectangle ret : rectangles)
            {   
                g2.draw(ret);
                g2.fill(ret);
               
            }
       }
     public void mouseDragged(MouseEvent e)
             {
                 int muse_x = e.getX();
                 int muse_y = e.getY();
                 Point p = e.getPoint();
                 
                 for(Rectangle rt :rectangles){
                 if(rt.contains(p)){
                     rt.setLocation(muse_x,muse_y);
                     this.repaint();
                 }
     
                 }
             
        }

Please help me...
[ February 26, 2008: Message edited by: shalini gnana ]

[Michael Dunn]

Can't help with your posted code, but here's a simple demo of dragging multiple panels

maybe you can adapt some of it for your code.

    
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
class Testing
{
  int xPos, yPos;
  public void buildGUI()
  {
    final DragPanel[] panels = {new DragPanel(50,50),new DragPanel(250,50),
       new DragPanel(150,250),new DragPanel(50,450),new DragPanel(250,450)};
    JPanel p = new JPanel(null);
    for(int x = 0, y = panels.length; x < y; x++)
    {
      final int xx = x;
      p.add(panels[x]);
      panels[x].addMouseListener(new MouseAdapter(){
        public void mousePressed(MouseEvent me){
          xPos = me.getX();
          yPos = me.getY();
        }
      });
      panels[x].addMouseMotionListener(new MouseMotionAdapter(){
        public void mouseDragged(MouseEvent me){
          Point me_p = me.getPoint();
          for(int x = 0, y = panels.length; x < y; x++)
          {
            Point vp_p = panels[x].getLocation();
            panels[x].setLocation(vp_p.x + me_p.x - xPos,vp_p.y + me_p.y - yPos);
          }
        }
      });
    }
    JFrame f = new JFrame();
    f.getContentPane().add(p);
    f.setSize(1000,800);
    f.setLocationRelativeTo(null);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
  }
  public static void main(String[] args)
  {
    SwingUtilities.invokeLater(new Runnable(){
      public void run(){
        new Testing().buildGUI();
      }
    });
  }
}
class DragPanel extends JPanel
{
  public DragPanel(int x, int y)
  {
    setBounds(x,y,100,100);
    setOpaque(false);
    setBorder(BorderFactory.createLineBorder(Color.BLACK));
  }
}

[Ulf Dittmer]

Shalini, PatienceIsAVirtue.

Since you've put a fair amount of effort into it, I'm going to post something that works.

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.List;
import javax.swing.*;
 
public class DrawRectangles extends JFrame implements MouseMotionListener {
 
    final List<Rectangle> rectangles = new ArrayList<Rectangle>();
    final Map<Rectangle, Point> lastPos = new HashMap<Rectangle, Point>();
 
    public static void main (String[] args) {
        DrawRectangles self = new DrawRectangles();
        self.pack();
        self.setVisible(true);
    }
 
    public DrawRectangles() {
        rectangles.add(new Rectangle(50, 50, 60, 40));
        rectangles.add(new Rectangle(300, 200, 40, 60));
        rectangles.add(new Rectangle(50, 300, 100, 40));
 
        JPanel panel = new JPanel() {
            protected void paintComponent (Graphics g) {
                super.paintComponent(g);
                Graphics2D g2 = (Graphics2D)g;
                
                g.setColor(getBackground());
                g.fillRect(0, 0, getWidth(), getHeight());
                g.setColor(getForeground());
 
                drawdig(g2);
            }
 
            public void drawdig (Graphics g) {
                Graphics2D g2 = (Graphics2D) g;
                g2.setPaint(new Color(0,157,250));
 
                for (Rectangle ret : rectangles) {   
                    g2.draw(ret);
                    g2.fill(ret);
                }
            }
        };
 
        panel.addMouseMotionListener(this);
        panel.setPreferredSize(new Dimension(600, 400));
        add(panel);
    }
 
    public void mouseMoved (MouseEvent e) {
        lastPos.clear();
    }
 
    public void mouseDragged (MouseEvent e) {
         Point newP = e.getPoint();
 
         for (Rectangle rt : rectangles) {
            Point lastP = lastPos.get(rt);
            if (rt.contains(newP) && lastP != null && lastP != newP) {
                rt.translate((int) (newP.getX() - lastP.getX()),
                            (int) (newP.getY() - lastP.getY()));
            }
            lastPos.put(rt, newP);
         }
 
         repaint();
    }
}

By the way, Michael's code is somewhat similar, but it obscures part of the problem because the event handling isn't centralized in one component.
[ February 27, 2008: Message edited by: Ulf Dittmer ]

[shalini gnana]

Wow!!great work!!


I'm using JAppelt,so i'm unable to use JFrame in my program.
I'm finding some problem in using your comcept,
1.I'm calling more than one method in paintComponent(),so i could able to
call that method inside another method..
2.I'm extending the panel in the class ,so how can i create another
panel Object...
3.I created Map and implemented in the same way you,did..I couldn't
able to drag now...


Here is my complete code...

   
 

 
public class mousedrag extends javax.swing.JApplet  {
    public mousedrag() {
    }
    @Override
    public void init() {
        Container cont = getContentPane();
        cont.setLayout(new BorderLayout());
        setPreferredSize(new Dimension(300, 300));
        JScrollPane scroll = new JScrollPane();
        getContentPane().add(scroll, BorderLayout.CENTER);
        scroll.getViewport().add(new Imagepanel());
 
    }
 
    private class Imagepanel extends JPanel implements MouseListener,MouseMotionListener{
 
        Rectangle r = new Rectangle(rect_x,rect_y,rect_w,rect_ht);
        Imagepanel()
        {
            panel();
            addMouseMotionListener(this);
            addMouseListener(this);
        }
 
        public void panel()
        {
            Graphics g1 = this.g;
            int dimension =0 ;
 
            setPreferredSize(new Dimension(33060,33060));
            scroll = new JScrollPane();
            add(scroll);
            Imagepanel imagepanel ;
            setBorder(BorderFactory.createLineBorder(Color.BLACK, border));
        }
        @Override
        protected void paintComponent(Graphics g)
        {
            super.paintComponent(g);
            Graphics2D g2 = (Graphics2D)g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 
            g.setColor(getBackground());
            g.fillRect(0, 0, getWidth(), getHeight());
            g.setColor(getForeground());
 

            if(drawpanel){drawPanel(g2);}
            if(drawresource){drawResource(g2);}
            if(drawcalender)
            {
                drawCalendar(g2);
            }
 
            drawdig(g2);
        }
        public void drawPanel(Graphics g){
 
        }
        public void drawResource(Graphics g){
 
        }
 
        public Date  drawCalendar( Graphics g){
 
//drawwrk(g) was called here
 

        }
 
        public Date []  drawwrk(Graphics g)
         {
 
         }
 

       public void drawdig(Graphics g)
        {
            Graphics2D g2 = (Graphics2D)g;
            g2.setColor(getForeground());
g.setColor(getBackground());   
g.fillRect(0, 0, getWidth(), getHeight()); 
            g.setColor(getForeground());  
            g2.setPaint(new Color(0,157,250));
            System.out.println(rectangles.size()+"SIZE");
            for(Rectangle ret : rectangles)
            {
                g2.draw(ret);
                g2.fill(ret);
 
            }
       }
 
    public void mousePressed(MouseEvent e)
        {
 
        }
 
        public void mouseReleased(MouseEvent e) {
            //this.repaint();
        }
 
        public void mouseEntered(MouseEvent e) {}
 
        public void mouseExited(MouseEvent e) {}
 
        public void mouseDragged(MouseEvent e)
        {
             Point p = e.getPoint();
            for(Rectangle rt : rectangles)
            {
                Point lastP = (Point) lastPos.get(rt);
                 if (rt.contains(p) && lastP != null && lastP != p)
                 {
                      //rt.translate((int) (p.getX() - lastP.getX()),(int) (p.getY() - lastP.getY()));
                     rt.setLocation((int) (p.getX() - lastP.getX()),(int) (p.getY() - lastP.getY()));
                 }
                lastPos.put(rt, p);
 
            }
            this.repaint();
 

        }
        public void mouseMoved(MouseEvent e) {
   lastPos.clear();
}
 
    }
} 

Please help me...

[Ulf Dittmer]

I'm using JAppelt,so i'm unable to use JFrame in my program.

That doesn't really make a difference. Where my code adds a JPanel to a JFrame, yours can add it to the JApplet.

1.I'm calling more than one method in paintComponent(),so i could able to call that method inside another method.

Not following. Why does it matter how many methods are called inside of paintComponent?

2.I'm extending the panel in the class ,so how can i create another panel Object...

I'm not sure what you're asking, but where my code uses a JPanel you'd use an Imagepanel. No other panel is necessary.

3.I created Map and implemented in the same way you,did..I couldn't able to drag now...

Is the mouseDragged method being called with reasonable x/y coordinates?

Why did you replace translate with setLocation? That's doing something different, so you can't expect it to work the same way.

You also need to get rid of the ScrollPane that's part of the Imagepanel - you already have a ScrollPane in the mousedrag class.

[shalini gnana]

In your code you placed everything inside the constructor...
Even the paintComponent()..Its quite difficult
for me to follow.because,i have to place all the
methods that i'm going to call in the paintmethod..I can't keep it everything is a
seperate method.Is there any other way for dragging the
drawing..

Thanks alot...

[Ulf Dittmer]

You don't need another method of dragging/drawing -the one outlined above works nicely- you need to understand and adapt the code that's already there.

If you're not familiar with anonymous classes -which is what allowed me to keep the complete JPanel declaration in the constructor-, note that all the methods are part of the class that extends JPanel. That's what you need to do in your code too, even if you're declaring that class differently.

What specifically are you having difficulties with when you try to adapt my approach to your code? Have you addressed the points I mentioned in my previous post?
[ February 28, 2008: Message edited by: Ulf Dittmer ]

[shalini gnana]

My doubt is, 1.My inner class had extended a panel, as per your code,should i have to use another panel inside the constructor,like you used:

JPanel panel = new JPanel()
{
@Override

2.In my code,i add some methods to paintComponent() should i have to write that method,too inside the constructor... 3.I tried,in the way you said.but nothing was painted in the panel...

public class mousedrag extends javax.swing.JApplet  {
public void init() {
        Container cont = getContentPane();
        cont.setLayout(new BorderLayout());
        setPreferredSize(new Dimension(300, 300));
        JScrollPane scroll = new JScrollPane();
        getContentPane().add(scroll, BorderLayout.CENTER);
        scroll.getViewport().add(new Imagepanel());
        }
        
private class Imagepanel extends JPanel implements MouseListener,MouseMotionListener{
public Imagepanel() 
        { 
            panel();
            addMouseMotionListener(this);
            addMouseListener(this);
            JPanel panel_drag = new JPanel()
            {
               public void drawdig(Graphics g)
                {
                    Graphics2D g2 = (Graphics2D)g;
                    g2.setPaint(new Color(0,157,250));
        
                    for(Rectangle ret : rectangles)
                    {   
                        g2.draw(ret);
                        g2.fill(ret);
                
                    }
                }
               public void paintComponent()
               {
                    super.paintComponent(g);
                    Graphics2D g2 = (Graphics2D)g;
                    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        
                    g2.setColor(getBackground());   
                    g2.fillRect(0, 0, getWidth(), getHeight()); 
                    g2.setColor(getForeground());          
                }   
            };
            add(panel_drag);
            
          
        }  

I did how you said in the mousedragg

rt.translate((int) (p.getX() - lastP.getX()),(int) (p.getY() - lastP.getY()));

[Ulf Dittmer]

1.My inner class had extended a panel, as per your code,should i have to use another panel inside the constructor

No. The Imagepanel serves as the JPanel to use.

2.In my code,i add some methods to paintComponent() should i have to write that method,too inside the constructor.

You're not using anonymous classes, and thus you need to remove the JPanel constructor call in the Imagepanel constructor. Your class has a name -Imagepanel- and you're creating it in the init method. The other methods live in the same place as the paintComponent method; just like it was/as in your previous code, and in my code above.

Have you tried this without using a ScrollPanel? It's easier to get the basics to work right before adding additional features.

[shalini gnana]

sorry for the repeated posting...
If you don't mind, can you explain me want should i have to
do..

Its enough,to create a map and to modify the mouseDragg method....

[Ulf Dittmer]

Something like this should work if you add the other methods I posted earlier:

    public void init() {
        Container cont = getContentPane();
        cont.setLayout(new BorderLayout());
        setPreferredSize(new Dimension(300, 300));
        Imagepanel ip = new Imagepanel();
        ip.addMouseMotionListener(ip);
        ip.addMouseListener(ip);
        getContentPane().add(ip);
    }
 
    private class Imagepanel extends JPanel implements MouseListener, MouseMotionListener{
 
        public void drawdig(Graphics g) {
                Graphics2D g2 = (Graphics2D)g;
                g2.setPaint(new Color(0,157,250));
 
                for(Rectangle ret : rectangles)
                {   
                        g2.draw(ret);
                        g2.fill(ret);
                }
        }
 
   public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 
g2.setColor(getBackground());   
g2.fillRect(0, 0, getWidth(), getHeight()); 
g2.setColor(getForeground());          
}   
}  

[ February 28, 2008: Message edited by: Ulf Dittmer ]

[shalini gnana]

I tried but still its not working...

  
 

 
public class mousedrag extends javax.swing.JApplet  {
    public mousedrag() {
    }
    @Override
    public void init() {
        Container cont = getContentPane();
        cont.setLayout(new BorderLayout());
        setPreferredSize(new Dimension(300, 300));
        
        Imagepanel image = new Imagepanel();
        image.addMouseListener(image);
        image.addMouseMotionListener(image);
        getContentPane().add(image);
        
 
    }
 
    private class Imagepanel extends JPanel implements MouseListener,MouseMotionListener{
 
        Rectangle r = new Rectangle(rect_x,rect_y,rect_w,rect_ht);
        Imagepanel()
        {
            panel();
            addMouseMotionListener(this);
            addMouseListener(this);
        }
 
        public void panel()
        {
            Graphics g1 = this.g;
            int dimension =0 ;
 
            setPreferredSize(new Dimension(33060,33060));
            scroll = new JScrollPane();
            add(scroll);
            Imagepanel imagepanel ;
            setBorder(BorderFactory.createLineBorder(Color.BLACK, border));
        }
        @Override
        protected void paintComponent(Graphics g)
        {
            super.paintComponent(g);
            Graphics2D g2 = (Graphics2D)g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 
            g.setColor(getBackground());
            g.fillRect(0, 0, getWidth(), getHeight());
            g.setColor(getForeground());
 

            if(drawpanel){drawPanel(g2);}
            if(drawresource){drawResource(g2);}
            if(drawcalender)
            {
                drawCalendar(g2);
            }
 
            drawdig(g2);
        }
        public void drawPanel(Graphics g){
 
        }
        public void drawResource(Graphics g){
 
        }
 
        public Date  drawCalendar( Graphics g){
 
        }
 
        public Date []  drawwrk(Graphics g)
         {
 
         }
 

       public void drawdig(Graphics g)
        {
            Graphics2D g2 = (Graphics2D)g;
            g2.setColor(getForeground());
g.setColor(getBackground());   
g.fillRect(0, 0, getWidth(), getHeight()); 
            g.setColor(getForeground());  
            g2.setPaint(new Color(0,157,250));
            System.out.println(rectangles.size()+"SIZE");
            for(Rectangle ret : rectangles)
            {
                g2.draw(ret);
                g2.fill(ret);
 
            }
       }
 
    public void mousePressed(MouseEvent e)
        {
 
        }
 
        public void mouseReleased(MouseEvent e) {
            //this.repaint();
        }
 
        public void mouseEntered(MouseEvent e) {}
 
        public void mouseExited(MouseEvent e) {}
 
        public void mouseDragged(MouseEvent e)
        {
             Point p = e.getPoint();
            for(Rectangle rt : rectangles)
            {
                Point lastP = (Point) lastPos.get(rt);
                 if (rt.contains(p) && lastP != null && lastP != p)
                 {
                      rt.translate((int) (p.getX() - lastP.getX()),(int) (p.getY() - lastP.getY()));
                     //rt.setLocation((int) (p.getX() - lastP.getX()),(int) (p.getY() - lastP.getY()));
                 }
                lastPos.put(rt, p);
 
            }
            this.repaint();
 

        }
        public void mouseMoved(MouseEvent e) {
   lastPos.clear();
}
 
    }
}
  

[Ulf Dittmer]

I suggest you completely remove the Imagepanel constructor and the Imagepanel.panel method. As far as I can tell they do very little useful (and some harm by adding an additional set of event listeners), and you still have that ScrollPane in there that needlessly complicated things; it may well be the source of the problem.

If it still doesn't work after you did that, tell us in detail what is actually happening - is the mouseDragged method being called at the appropriate times with reasonable values?

[shalini gnana]

If its a single rectangle- hard coded,(i.e., not an array of rectangle)then i can able to
drag(inspite of the scrollpane)...but the problem arises only when a list of values comes.

[shalini gnana]

Any help,please!!
[ March 03, 2008: Message edited by: shalini gnana ]

[shalini gnana]

Anyone help me please...

[Ulf Dittmer]

Originally posted by Ulf Dittmer:
If it still doesn't work after you did that, tell us in detail what is actually happening - is the mouseDragged method being called at the appropriate times with reasonable values?