/*
	3magic Coffee Table Tutorial 13
	ValidatorGrid.java - Custom Validation.

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

import java.awt.*;
import java.lang.*;
import CoffeeTable.Grid.*;

/**
 * Here's an extension to GridPanel to do custom validation.
 */
public class ValidatorGrid extends GridPanel {
	TextArea fMsg;
	
	// Constructor
	public ValidatorGrid() {
		super();
	}
	
	// Constructor
	public ValidatorGrid(int numRows, int numCols, TextArea aMsg) {
		super(numRows, numCols);
		
		fMsg = aMsg;
	}
	
	// Override validate to do custom validation of cell inputs.
	public boolean validate(String aText, Point editCell) {
		boolean valid = true;

    	if ((aText != null) && !aText.equals("")) {
			fMsg.appendText("Data Entry = '" + aText + "'\n");
	 	    
	 	    try {
				int x = Integer.parseInt(aText);
				fMsg.appendText("Number OK = '" + x + "'\n");
	 	    } catch (Exception e) {
				fMsg.appendText("Not a Number! Please enter a Number!\n");
				TextField field = this.getEditTextField();
				if (field != null) {
					field.selectAll();
					field.requestFocus();
				}
				valid = false;
	 	    }
    	}

		return valid;
	}
}