Improve company productivity with a Business Account.Sign Up

x
?
Solved

Java Mouse Adapter - event handling -

Posted on 2009-03-29
2
Medium Priority
?
1,549 Views
Last Modified: 2013-11-23
Hi i have a JPane containing 100 JButtons.  The initial rollover icon for each button is a right arrow.  I need to change the rollover icon to a down arrow if the user clicks the right-mouse button, back to right arrow if clicked again and so on.

I created an inner class "MouseHandler".  However it does not do anything when I click the right mouse button.  Can you guys let me know what I'm doing wrong?

Thanks.


MouseHandler class starts at line 101
 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
 
import javax.swing.ImageIcon;
 
public class HomeOcean extends Ocean implements ActionListener {
 
	private static final long serialVersionUID = 1L;
	final boolean home = true;
	boolean horizontal;
	Coordinate coordinate;
	Ship carrier, battleship, submarine, destroyer, patrolBoat;
	final ImageIcon arrowDown = new ImageIcon("images/arrow_down.png");
	final ImageIcon arrowRight = new ImageIcon("images/arrow_right.png");
	
	public HomeOcean() {
		super();
		horizontal = true;
		for(int x=1; x<=10; x++){
			for(int y=1; y<=10; y++){
				super.grid[x][y].setRollover(home);
			}
		}
		super.grid[0][0].setOceanIcon(home);
		carrier = new AircraftCarrier();
		battleship = new Battleship();
		submarine = new Submarine();
		destroyer = new Destroyer();
		patrolBoat = new PatrolBoat();
		addMouseListener(new MouseHandler());
	}
	
	private void repaintCursor(boolean horizontal){
			if(horizontal){
				for(int x=1; x<=10; x++){
				for(int y=1; y<=10; y++){
					grid[x][y].setRolloverIcon(arrowRight);
					//grid[x][y].setRolloverIcon(grid[x][y].arrowRight);
				}
			}
	}
			else{
				for(int x=1; x<=10; x++){
					for(int y=1; y<=10; y++){
						//grid[x][y].setRolloverIcon(grid[x][y].arrowDown);
						grid[x][y].setRolloverIcon(arrowDown);
					}
				}
			}
	}
	
	public void setCoordinate(Coordinate coord){
		this.coordinate = coord;
	}
	
	public void placeShip(Ship ship){
		ship.placeShip(coordinate, horizontal, this.validPosition(coordinate, ship.size, horizontal));
	}
	
	
	public boolean validPosition(Coordinate coordinate, int size, boolean isHorizontal){
		int x = coordinate.getX();
		int y = coordinate.getY();
		if(isHorizontal){
			if(x+size>10){
				return false;
			}
			boolean valid = true;
			int position = x;
			while(valid && position <= x+size){
				if(super.grid[position][y].isFree())
					position++;
				else
					valid = false;
			}
			return valid;
		}
		else{
			if(y+size>10){
				return false;
			}
			boolean valid = true;
			int position = y;
			while(valid && position <= y+size){
				if(super.grid[x][position].isFree())
					position++;
				else
					valid = false;
			}
			return valid;
		}
	}
	
 
	public void actionPerformed(ActionEvent e) {
	}
	
	private class MouseHandler extends MouseAdapter{
		public void mousePressed(MouseEvent e){
			if(e.getModifiers() == InputEvent.BUTTON3_MASK){
				horizontal = !horizontal;
				repaintCursor(horizontal);
				repaint();
				
			}
		}
	}
 
	}

Open in new window

0
Comment
Question by:ubuntuguy
2 Comments
 
LVL 92

Expert Comment

by:objects
ID: 24015357
i the mousePressed() method getting called?

0
 
LVL 1

Accepted Solution

by:
ubuntuguy earned 0 total points
ID: 24015610
I fixed... the mouse handler needed to be added to the buttons not the jpanel.
0

Featured Post

Upgrade your Question Security!

Your question, your audience. Choose who sees your identity—and your question—with question security.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
In this post we will learn different types of Android Layout and some basics of an Android App.
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.

595 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question