package org.hwo.ui.servicelink.register;

import java.awt.Component;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.math.BigInteger;

import javax.swing.JPanel;
import javax.swing.JTextField;

import org.hwo.servicelink.ServiceLink;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;

public class IntegerRegisterEditor extends JPanel implements ServiceRegisterControl {
	
	private ServiceRegister serviceRegister;
	private JTextField tfValue;
	
	public IntegerRegisterEditor()
	{
		super();		
		GridBagLayout gridBagLayout = new GridBagLayout();
		gridBagLayout.columnWidths = new int[]{0, 0};
		gridBagLayout.rowHeights = new int[]{0, 0};
		gridBagLayout.columnWeights = new double[]{1.0, Double.MIN_VALUE};
		gridBagLayout.rowWeights = new double[]{0.0, Double.MIN_VALUE};
		setLayout(gridBagLayout);
		
		tfValue = new JTextField();
		GridBagConstraints gbc_tfValue = new GridBagConstraints();
		gbc_tfValue.fill = GridBagConstraints.HORIZONTAL;
		gbc_tfValue.gridx = 0;
		gbc_tfValue.gridy = 0;
		add(tfValue, gbc_tfValue);
		tfValue.setColumns(10);
	}

	@Override
	public Component getComponent() {
		return this;
	}

	@Override
	public void setServiceRegister(ServiceRegister serviceRegister) {
		this.serviceRegister = serviceRegister;
	}

	@Override
	public void writeValue() {
		this.serviceRegister.writeIntegerValue(Integer.decode(tfValue.getText()));
	}

	@Override
	public void readValue() {
		Integer i = this.serviceRegister.readIntegerValue();
		if ( i == null )
			i = 0;
		tfValue.setText(i.toString());
	}
	
	@Override
	public boolean requestFocusInWindow() {
		return tfValue.requestFocusInWindow();
	}
}