import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class tooltip6 extends Applet  {

public void init() 
{
	setBackground(new Color(225,225, 255));
	try
	{
		FrameForApplet frameForApplet = new FrameForApplet("A frame");
	}
	catch (Throwable e) {return;}
}

public void paint(Graphics g)
{
	g.drawString("A Frame appears with two Canvases with ToolTips", 10 , 25);
}
}  // END OF Class tooltip6



final class FrameForApplet extends Frame  {

TipButton tipButton1, tipButton2;
static Frame frame;

FrameForApplet(String s)
{
	super(s);
	frame = this;
	addNotify();
	setBounds(100, 100, 400, 200);
	setLayout(new GridBagLayout());
	tipButton1 = new TipButton(this);
	constrain(this, tipButton1, 0, 0, 1, 1, GridBagConstraints.NORTH, 0, 0, 0, 0, GridBagConstraints.NONE, 0, 0);
	tipButton2 = new TipButton(this);
	constrain(this, tipButton2, 0, 1, 1, 1, GridBagConstraints.NORTH, 10, 0, 0, 0, GridBagConstraints.NONE, 0, 0);
	show();
}
	
static final void constrain(Container container, Component component, int grid_x, int grid_y, 
		int grid_width, int grid_height, int anchor, int topPad, int leftPad, int bottomPad, 
		int rightPad, int fill, double weightx, double weighty)
{
	GridBagConstraints c = new GridBagConstraints();
	c.gridx = grid_x;
	c.gridy = grid_y;
	c.gridwidth = grid_width;
	c.gridheight = grid_height;
	c.anchor = anchor;
	c.insets.top   = topPad;
	c.insets.left  = leftPad;
	c.insets.bottom= bottomPad;
	c.insets.right = rightPad;
	c.fill = fill;
	c.weightx = weightx;
	c.weighty = weighty;
	((GridBagLayout)container.getLayout()).setConstraints(component, c);
	container.add(component);
}
}  // END OF Class FrameForApplet



class TipCanvas extends Canvas  {
	
TipCanvas()
{
	setFont(new Font("Dialog", Font.PLAIN, 14));
	setBackground(new Color(255, 255, 224));  // light yellow
}

public Dimension getPreferredSize()
{
	return (new Dimension(90, 20));
}

public void paint(Graphics g)
{
	g.drawRect(0, 0, 89, 19);
	g.drawString("ToolTip text", 4, 15);
}
}  // END OF Class TipCanvas



class TipButton extends Canvas implements MouseListener  {

TipCanvas tipCanvas;
Font font;
	
TipButton(Container container)
{
	font = new Font("Serif", Font.BOLD, 15); 
	addMouseListener(this);
}

public synchronized void mouseEntered(MouseEvent me)
{
	tipCanvas = new TipCanvas();
	FrameForApplet.frame.add(tipCanvas, 0);  
	Point frameLocation = FrameForApplet.frame.location();
	Point screenLocation = getLocationOnScreen(); 
	tipCanvas.setSize(tipCanvas.getPreferredSize()); 
	tipCanvas.setLocation(screenLocation.x + me.getX() + 4 - frameLocation.x,
						  screenLocation.y + me.getY() + 15 - frameLocation.y);
}

public synchronized void mouseExited(MouseEvent me)
{
	if (tipCanvas != null) 
	{
		FrameForApplet.frame.remove(tipCanvas);
		tipCanvas = null;
	}
}

public synchronized void mouseReleased(MouseEvent me) {}

public synchronized void mousePressed(MouseEvent me) {}

public synchronized void mouseClicked(MouseEvent me) {}

public final Dimension getMinimumSize()
{
	return (new Dimension(100, 20));
}

public final Dimension getPreferredSize()
{
	return(getMinimumSize());
}

public void paint(Graphics g)
{
	g.setColor(Color.green);
	g.fillRect(0, 0, 100, 20);
	g.setColor(Color.black);
	g.setFont(font);
	g.drawString("Canvas text", 10, 15);
}
}  // END OF Class TipButton