/** --------------------------------------------- 
 * MouseButtons.java
 *      Display program identifying information and handle mouse clicks, passing
 *      them on to the Board class to be processed.
 *      - To run the program start by invoking main() in this class.
 *          
 * Class: CS 107, Spring 2009
 * System: BlueJ 2.5, jsdk 1.6, Windows XP
 * Program #2, Boggle
 *
 * @author  Dale Reed
 * ----------------------------------------------
 */

// Import libraries needed by the program
import java.util.Scanner;         // used for console input
import java.io.*;                 // used for reading from a file
import java.awt.event.*;

public class MouseButtons implements MouseListener
{   
    // Instance variables 
	Board theBoard;					// create the board
    
    // After x,y values found, add these differences to compensate for screen offsets caused by
    // title bar on top and screen border on the left
    final int deltaY = -30;     
    final int deltaX = -4;
    

    //----------------------------------------------------------------------------------------
    // main() - startup main loop.    
    //           "throws IOException" is needed to implement reading from a file
    public static void main(String[] args) throws IOException
    {
    	// create an instance of this class
        MouseButtons MouseButtonsInstance = new MouseButtons();
        // Register this instance with Canvas as the MouseListener so mouse events get handled 
        // with the mouse code shown below
        Canvas.getCanvas().setMouseListener( MouseButtonsInstance);
        MouseButtonsInstance.doIt();
    }
    
    // Implementing MouseListener means we must declare the 5 mouse methods:
    //     mouseClicked, mouseEntered, mouseExited, mousePressed, and mouseReleased
    // We can leave the body empty for methods whose behaviors we do not need to define.
   
    // use this to detect mouse "clicks", which is a press (for some milliseconds) & release
    public void mouseClicked(MouseEvent e) {}
    
    // detect mouse position when it enters the drawing frame
    public void mouseEntered(MouseEvent e) {}
    
    // detect mouse position when it exits the drawing frame
    public void mouseExited(MouseEvent e)  {}

    // detect mouse position when mouse button is pressed
    public void mousePressed(MouseEvent e) 
    {
        int x = e.getX() + deltaX;  // compensate for offset of frame left border 
        int y = e.getY() + deltaY;  // compensate for frame title bar on the tip
        
        // pass the mouse click coordinates to the board class to be handled
        theBoard.handleMouseClick( x,y);
    }

    // detect mouse position when mouse button is released    
    public void mouseReleased(MouseEvent e) {}

    
    //----------------------------------------------------------------------------------------
    // doIt() - display identifying information and run main part of program
    //      
    void doIt() 
    {
        // Display identifying information
        System.out.println( "Author: Dale Reed \n" +
                            "Program #3: Boggle\n" +
                            "October 3, 2009\n");
                        
        // Create board
        theBoard = new Board();
                
        // Display Instructions
        System.out.println( "Click on the buttons.");
        
    }//end method doIt()

    
}//end class MouseButtons