Os arquivos abaixo foram extraídos do Livro:

An Introduction to Graphical User Interfaces with Java Swing

package its.MouseEvents;

/**

* Example program for Introduction to Swing

* @author Paul Fischer, IMM, DTU

* @version 1.0

*/

public class MouseEventDriver

{

public static void main(String[] args)

{

MouseEventFrame MEF = new MouseEventFrame();

MEF.showIt();

}

}

package its.MouseEvents;

import its.SimpleFrame.SimpleFrame;

import java.awt.BorderLayout;

/**

* Example program for Introduction to Swing

* @author Paul Fischer, IMM, DTU

* @version 1.0

*/

public class MouseEventFrame extends SimpleFrame

{

MouseEventPanel mePanel = new MouseEventPanel();

StatusPanel stPanel = new StatusPanel();

public MouseEventFrame()

{

this.setTitle("Mouse application");

this.getContentPane().add(mePanel,BorderLayout.CENTER);

this.getContentPane().add(stPanel,BorderLayout.SOUTH);

pack();

MyMousePositionsListener mPosAdpt = new MyMousePositionsListener(stPanel);

mePanel.addMouseMotionListener(mPosAdpt);

MyMouseListener MAdpt = new MyMouseListener(stPanel);

mePanel.addMouseListener(MAdpt);

}

}

package its.MouseEvents;

import java.awt.Color;

import java.awt.Dimension;

import javax.swing.JPanel;

/**

* Example program for Introduction to Swing

* @author Paul Fischer, IMM, DTU

* @version 1.0

*/

public class MouseEventPanel extends JPanel

{

public MouseEventPanel()

{

this.setBackground(Color.white);

this.setPreferredSize(new Dimension(300,300));

}

}

package its.MouseEvents;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

/**

* Example program for Introduction to Swing

* @author Paul Fischer, IMM, DTU

* @version 1.0

*/

public class MyMouseListener implements MouseListener

{

private StatusPanel statusPane;

public MyMouseListener(StatusPanel s)

{

statusPane = s;

}

public void mouseEntered(MouseEvent e)

{

statusPane.setInOut("yes");

}

public void mouseExited(MouseEvent e)

{

statusPane.setInOut("no");

statusPane.setCoordinates(-1,-1);

}

public void mouseClicked(MouseEvent e)

{

statusPane.incrementClickCount();

}

public void mousePressed(MouseEvent e)

{

//implementd with empty body

}

public void mouseReleased(MouseEvent e)

{

//implementd with empty body

}

}

package its.MouseEvents;

import java.awt.event.MouseEvent;

import java.awt.event.MouseMotionListener;

/**

* Example program for Introduction to Swing

* @author Paul Fischer, IMM, DTU

* @version 1.0

*/

public class MyMousePositionsListener implements MouseMotionListener

{

private StatusPanel statusPane;

public MyMousePositionsListener(StatusPanel s)

{

statusPane = s;

}

public void mouseMoved(MouseEvent evt)

{

statusPane.setCoordinates(evt.getX(),evt.getY());

}

public void mouseDragged(MouseEvent evt)

{

// implemented with emtpy body

}

}

package its.MouseEvents;

import java.awt.GridLayout;

import javax.swing.JLabel;

import javax.swing.JPanel;

/**

* Example program for Introduction to Swing

* @author Paul Fischer, IMM, DTU

* @version 1.0

*/

public class StatusPanel extends JPanel

{

private JLabel posText = new JLabel("position:");

private JLabel XCoord = new JLabel("0", JLabel.RIGHT);

private JLabel YCoord = new JLabel("0", JLabel.RIGHT);

private JLabel countText = new JLabel("no. of clicks");

private JLabel counts = new JLabel("0", JLabel.RIGHT);

private JLabel dummy1 = new JLabel();

private JLabel inOutText = new JLabel("mouse is in comp.");

private JLabel inOut = new JLabel("no", JLabel.RIGHT);

private JLabel dummy2 = new JLabel();

private int clickCount = 0;

public StatusPanel()

{

this.setLayout(new GridLayout(3,3));

this.add(posText);

this.add(XCoord);

this.add(YCoord);

this.add(countText);

this.add(counts);

this.add(dummy1);

this.add(inOutText);

this.add(inOut);

this.add(dummy2);

}

// Updates the displayed coordinates of the mouse position.

public void setCoordinates(int x, int y)

{

XCoord.setText(Integer.toString(x));

YCoord.setText(Integer.toString(y));

}

// Sets the innformation whether the mouse is in or out.

public void setInOut(String str)

{

inOut.setText(str);

}

// Increments the click count and displays it.

public void incrementClickCount(){

clickCount++;

counts.setText(Integer.toString(clickCount));

}

}

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