/*
	3magic Coffee Table Tutorial 9
	Tutorial9.java - Event Handling with GridEvent.

	© 1997-1999 3magic.  All rights reserved worldwide.
*/

import java.awt.*;
import java.applet.*;
import java.util.*;

import CoffeeTable.Grid.*;

public class Tutorial9 extends Applet
{
	// Our grid.
	GridPanel fGrid;
	
	// Rows and Columns;
	int fNumCols = 50;
	int fNumRows = 50;
	
	// Message area.
	TextArea fMsg = new TextArea("Manipulate the grid with the mouse.\n", 10, 1);	
	
	/**
	 * Initialize.
	 */
	public void init() {
		// Let's use a BorderLayout to help us with the user input areas.
		setLayout(new BorderLayout());

		// Instantiate a new Grid Panel with the specified rows and columns 
		// and other defaults like cell selection, row and column headers, 
		// row and column lines enabled and with scrollbars.
		fGrid = new GridPanel(fNumRows, fNumCols);
		
		// Add in the DEMO_TEXT mode.
		fGrid.setFlags(fGrid.getFlags() | GridPanel.DEMO_TEXT);
		
		// Enable editing.
		fGrid.setGridAttributes(new GridAttributes(fGrid, 
										new Font("Courier", Font.PLAIN, 12), 
										null, null, 0, GridPanel.EDIT_TEXT), true);

		// Enable sorting for all columns
		fGrid.setSortEnable(true);

		// Set sort column color to a very light gray.
		fGrid.setSortColumnColor(new Color(0xEFEFEF));

		// Show the row headers.
		fGrid.setRowHeaderWidth(40);
		fGrid.setRowNumbers(true);
		
		// Let's use Times, plain, 9-point.
		fGrid.setGridFont(new Font("TimesRoman", Font.PLAIN, 9));
        
		// Add the grid into the applet panel
		add("Center", fGrid);

		// Add the message area.
		add("South", fMsg);
	}

	/**
	 * handleEvent.
	 */
	public boolean handleEvent(Event event) {
		// Look for grid action events.
        if (event.target == fGrid && event.id == Event.ACTION_EVENT) {
        	// Show the event info in the message area.
	        if (event instanceof GridEvent) {
	        	fMsg.appendText(event.toString() + "\n");
	        }
        }
        
        // Be sure to call super to get the default grid behaviors!
        return super.handleEvent(event);
	}
}