Help to solve a swing problem

Question

Hi,
I have to add a mouse over event and mouse click event in my rectangles that I draw while taking the values from an input file. Now since I am taking rectangle height and width from the input text file as well I also want to take a text value to be shown while moving a mouse over a particular rectangle from my input file. Also when user clicks on that rectangle the height and width of that particular rectangle only should be displayed (re-adjusted).
Now When my paint component draws these 2 rectangles and a user moves his mouse over the rectangle he should see text message attached to it:- Like for first row 10, 23 he should see "Hello". In this case when he clicks on this rectangle the picture should read just to show only 10 and 20 as height and width.
I am trying to write 2 classes. 1st one extends JPanel and the other one MouseInputAdapter.
Here is the input file example below:-
Height   Width  Test_To_Show   Colors
10          23         Hello        300
20          44         Bye          000Here is my attempted code but still not getting what I want :(
import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.BufferedReader;
import java.util.List;
import java.awt.*;
import javax.swing.*;
import java.awt.Color;
import javax.swing.JFrame;
import java.awt.geom.Rectangle2D;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.event.*;
import java.awt.event.*;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
public class MousingExample extends JPanel {
    List<String> tips;
    JWindow toolTip;
    JLabel label;
    public String f[];
  public MousingExample(Frame f)
        tips = new ArrayList<String>();
        tips.add("Lets Start The Show");
        toolTip = new JWindow(f);
        label = new JLabel();
        label.setHorizontalAlignment(JLabel.CENTER);
        label.setOpaque(true);
        label.setBackground(UIManager.getColor("MousingExample.background"));
        label.setBorder(UIManager.getBorder("MosusingExample.border"));
        toolTip.add(label);
        setOpaque(true);
    public ArrayList<Rectangle> rects = new ArrayList<Rectangle>();
    public int width;
    public String color;
    public static int score;
    public static int value1;
    public static int value2;
    private final static int NUM_FIELDS = 4;
    public void InputReader() {
        String n = null; 
        try{
            BufferedReader fh = new BufferedReader(new FileReader("inputfile.txt"));   
            while((n = fh.readLine()) != null && (n = n.trim()).length() > 0){
               // System.out.println(n);
                f = n.split("\t");
                int height = Integer.parseInt(f[0].trim());
                int width = Integer.parseInt(f[1].trim());
                String message = f[2];
                Color color = new Color(Integer.parseInt(f[3]));
                Rectangle tempLineInfo = new Rectangle(color, value1, value2, width);
                rects.add(tempLineInfo);
            fh.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e2) {
            e2.printStackTrace();
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint( RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        setBackground(Color.white);
        for(int i=0; i<rects.size(); i++){
            Rectangle c = rects.get(i);
            GradientPaint gpi = new GradientPaint(0, 0,c.getColor() , 0, 20, Color.white, true);
            g2d.setPaint(gpi);
            g2d.drawRect(c.value1, 20, c.width, 35);
            g2d.fillRect(c.value1, 20, c.width, 35);
            System.out.printf("Drawing at %s\n", c);
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        MousingExample test = new MousingExample(frame);
        test.InputReader();
        Tipster tipster = new Tipster(test);
        test.addMouseListener(tipster);
        test.addMouseMotionListener(tipster);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setTitle("Trying To MouseOver");
        frame.setSize(400, 400);
        frame.setContentPane(test);
        frame.setVisible(true);
class Rectangle {
    private Color color;
    public int value1;
    public int value2;
    public int width;
    public Rectangle(Color c, int value1, int value2, int width){
        this.color = c;
        this.value1 = value1;
        this.value2 = value2;
        this.width = width;
    public Color getColor(){
        return color;
    public String toString() {
        return String.format("Color=%s,top=%d,bottom=%d,width=%d", color.toString(), value1, value2, width);
class Tipster extends MouseInputAdapter
    MousingExample Mousing;
    Point start;
    public Tipster(MousingExample tt)
        Mousing = tt;
    public void mousePressed(MouseEvent e) { }
    public void mouseReleased(MouseEvent e) { }
    public void mouseDragged(MouseEvent e) { }
    public void mouseMoved(MouseEvent e)
        List<Rectangle> rects = MousingExample.Rectangle;
        //Not Sure what I should do here
}Thanks in adavnce
Sheikh Chilly :)

Answer 1

Ok I will try to work more on your advice. This is my code so far after some more modifications. Plz do lemme know where I am making mistakes. Anyway thanks for guiding me.
import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.BufferedReader;
import java.util.List;
import java.awt.*;
import javax.swing.*;
import java.awt.Color;
import javax.swing.JFrame;
import java.awt.geom.Rectangle2D;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.event.*;
import java.awt.event.*;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
public class MouseExample extends JPanel {
    List<String> tips;
    JWindow toolTip;
    JLabel label;
    public String f[];
  public MouseExample(Frame f)
        tips = new ArrayList<String>();
     //   tips.add("Lets Start The Show");
        toolTip = new JWindow(f);
        label = new JLabel();
        label.setHorizontalAlignment(JLabel.CENTER);
        label.setOpaque(true);
        label.setBackground(UIManager.getColor("MouseExample.background"));
        label.setBorder(UIManager.getBorder("MosusingExample.border"));
        toolTip.add(label);
        setOpaque(true);
    public ArrayList<Rectangle> rects = new ArrayList<Rectangle>();
    public int width;
    public String color;
    public static int score;
    public static int value1;
    public static int value2;
    private final static int NUM_FIELDS = 4;
    public void InputReader() {
        String n = null; 
        try{
            BufferedReader fh = new BufferedReader(new FileReader("inputfile.txt"));   
            while((n = fh.readLine()) != null && (n = n.trim()).length() > 0){
               // System.out.println(n);
                f = n.split("\t");
                int height = Integer.parseInt(f[0].trim());
                int width = Integer.parseInt(f[1].trim());
                String message = f[2];
                tips.add(message);
                Color color = new Color(Integer.parseInt(f[3]));
                Rectangle tempLineInfo = new Rectangle(color, value1, value2, width);
                rects.add(tempLineInfo);
            fh.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e2) {
            e2.printStackTrace();
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint( RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        setBackground(Color.white);
        for(int i=0; i<rects.size(); i++){
            Rectangle c = rects.get(i);
            GradientPaint gpi = new GradientPaint(0, 0,c.getColor() , 0, 20, Color.white, true);
            g2d.setPaint(gpi);
            g2d.drawRect(c.value1, 20, c.width, 35);
            g2d.fillRect(c.value1, 20, c.width, 35);
            System.out.printf("Drawing at %s\n", c);
      public boolean isToolTipShowing()
        return toolTip.isShowing();
       public void showToolTip(int index, Point p)
        for(index = 0; index<tips.size();index++){
        label.setText(tips.get(index));
        toolTip.pack();
        toolTip.setLocation(p);
        toolTip.setVisible(true);
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        MouseExample test = new MouseExample(frame);
        test.InputReader();
        Tipster tipster = new Tipster(test);
        test.addMouseListener(tipster);
        test.addMouseMotionListener(tipster);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setTitle("Trying To MouseOver");
        frame.setSize(400, 400);
        frame.setContentPane(test);
        frame.setVisible(true);
class Rectangle {
    private Color color;
    public int value1;
    public int value2;
    public int width;
    public Rectangle(Color c, int value1, int value2, int width){
        this.color = c;
        this.value1 = value1;
        this.value2 = value2;
        this.width = width;
    public Color getColor(){
        return color;
    public String toString() {
        return String.format("Color=%s,top=%d,bottom=%d,width=%d", color.toString(), value1, value2, width);
class Tipster extends MouseInputAdapter
    MouseExample mousing;
    Point start;
    public Tipster(MouseExample tt)
        mousing = tt;
    public void mousePressed(MouseEvent e) { }
    public void mouseReleased(MouseEvent e) { }
    public void mouseDragged(MouseEvent e) { }
    public void mouseMoved(MouseEvent e)
Point p = e.getPoint();
        boolean traversing = false;
        List<Rectangle> rect = mousing.rects;
        for(int i; i<rect.size() ; i++ ){
            Rectangle r = rect.get(i);
            if(r.contains(p)) {
              if(!mousing.isToolTipShowing())
                    SwingUtilities.convertPointToScreen(p, mousing);
                    mousing.showToolTip(i, p);
                traversing = true;
                break;
}Thanks
Sheikh Chilly :)