Tooltip

[Preethi]

I'm writing a program using swing applet.To the container i add the scrollPanle,to the i added panel above which i drawn my drawings...Now i want to add tooltip,when the mouse point goes over the drawing by showing its coordinates..Now i want to know how to add tooltip to the drawing?
Please help me....

[Eranga]

You mean on the panel?

[Eranga]

If you JPanel is mainPanel try it as follows.

Code:

mainPanel.setToolTipText("Just for testings those text");

at the appropriate place of your code. Better to do it panel implementation.

[Preethi]

I tried in the way you said,but its not working out for me...Its not getting displayed....

Quote:

public class NewClass
{
public void init()
{
Container cont = getContentPane();
cont.setLayout(new BorderLayout());
setPreferredSize(new Dimension(300, 300));
JScrollPane scroll = new JScrollPane();
getContentPane().add(scroll, BorderLayout.CENTER);

}
private class Imagepanel extends JPanel implements MouseListener,MouseMotionListener
{

panel();
addMouseMotionListener(this);
addMouseListener(this);
}
public void panel()
{
StartDate obj = new StartDate();
int w = obj.diff();
int dimension = 0;
int size = xmlreadingObj.getres_list().size();
int height = 100 + size * 28;
width = w;
System.out.println("width"+width);

setPreferredSize(new Dimension(width, height));
setBorder(BorderFactory.createLineBorder(Color.BLA CK, border));
l = new JLabel("HAI");
add(l,BorderLayout.EAST);
l.setVisible(true);
l.setLocation(100,50);
}

protected void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASIN G,
RenderingHints.VALUE_ANTIALIAS_ON);
g2.drawRect(100,200,15,20);
g2.drawRect(200,200,15,20);

}
public void mousePressed(MouseEvent e)
{
Point p = e.getPoint();
x_Pos = e.getX();
y_Pos = e.getY();

for(int j = 0; j < rects.length; j++)
{
if(rects[j].contains(p))
{
selectedindex = j;
selectedRect = rects[j];
dragging = true;
break;
}
}
}
public void mouseMoved(MouseEvent e)
{
Imagepanel image = new Imagepanel();
l = new JLabel();
Point p = e.getPoint();
if(rects[selectedindex].contains(p))
{
image.add(l);
image.setToolTipText("Just to test");

}
else
{
candisplay = false;
}
}
}

[Eranga]

What is your Imagepanel do. Is it return a panel?

[Eranga]

See how this simple widow works.

Code:

import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

/**
 *
 * @author Eranga Tennakoon
 */
public class ToolTipDemo {

    JPanel pan = new JPanel();
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new ToolTipDemo().createAndShowGUI();
            }
        });
    }
    
    private void createAndShowGUI() {
        System.out.println("Created GUI on EDT? "+
                SwingUtilities.isEventDispatchThread());        
        JFrame f = new JFrame("ToolTip Demo");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        pan.setToolTipText("This is a tool tip");
        pan.setPreferredSize(new Dimension(250, 250));
        f.add(pan);
        f.pack();
        f.setVisible(true);
    }

}