AdeleTechHeatingApplication.java

/**
 * Copyright 2011-2013 Universite Joseph Fourier, LIG, ADELE team
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 * AdeleTechHeatingApplication.java - 9 juil. 2013
 */
package fr.imag.adele.apam.tutorials.temperature.adeletech.services;

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.JTextField;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import fr.imag.adele.apam.tutorials.temperature.devices.Heater;
import fr.imag.adele.apam.tutorials.temperature.devices.TemperatureSensor;

/**
 * @author thibaud
 * 
 */
public class AdeleTechHeatingApplication implements ChangeListener,
	ActionListener {

    JFrame mainWindow;
    String myName;
    JLabel labelTemperature;
    JLabel labelHeater;
    JSlider userSetting;
    JTextField labelSetting;

    int currentTemperature;

    TemperatureSensor mySensor;
    Heater myHeater;

    public void start() {
	System.out
		.println("GenericHeatingApplication : " + myName + ".start()");
	mainWindow = new JFrame(myName);
	labelTemperature = new JLabel();
	labelHeater = new JLabel();
	labelSetting = new JTextField();

	initComponents();
	mainWindow.pack();
	mainWindow.setVisible(true);
    }

    public void stop() {
	System.out.println("GenericHeatingApplication : " + myName + ".stop()");
	if (mainWindow != null)
	    mainWindow.dispose();
	mainWindow = null;

    }

    void initComponents() {

	mainWindow.setLayout(new BoxLayout(mainWindow.getContentPane(),
		BoxLayout.Y_AXIS));

	JPanel panelSensor = new JPanel();
	panelSensor.setBorder(BorderFactory
		.createTitledBorder("Temperature Sensor"));
	labelTemperature.setPreferredSize(new Dimension(200, 30));
	updateTemperature();
	panelSensor.add(labelTemperature);

	JPanel panelUserSetting = new JPanel();
	panelUserSetting.setBorder(BorderFactory
		.createTitledBorder("User Temperature Setting"));
	panelUserSetting.setLayout(new BoxLayout(panelUserSetting,
		BoxLayout.Y_AXIS));
	userSetting = new JSlider(10, 40, 21);
	userSetting.addChangeListener(this);
	labelSetting.setEnabled(false);
	labelSetting.setText("21°C");
	labelSetting.setHorizontalAlignment(JTextField.CENTER);
	panelUserSetting.add(labelSetting);
	panelUserSetting.add(userSetting);

	JPanel panelHeater = new JPanel();
	panelHeater.setBorder(BorderFactory
		.createTitledBorder("Heater Activity"));
	labelHeater.setPreferredSize(new Dimension(200, 30));
	updateHeater();
	panelHeater.add(labelHeater);

	JPanel panelTemp = new JPanel();
	JButton refreshStatus = new JButton("Refresh Status");
	refreshStatus.setPreferredSize(new Dimension(200, 30));
	refreshStatus.addActionListener(this);
	panelTemp.add(refreshStatus);

	mainWindow.add(panelSensor);
	mainWindow.add(panelUserSetting);
	mainWindow.add(panelHeater);
	mainWindow.add(panelTemp);
    }

    void updateTemperature() {

	if (mySensor != null) {
	    currentTemperature = mySensor.getCurrentTemperature();
	    labelTemperature.setText(currentTemperature + "°C");

	} else
	    labelTemperature.setText("No Temperature Sensor");
    }

    void updateHeater() {
	if (myHeater != null) {
	    if (mySensor != null) {
		if (currentTemperature >= userSetting.getValue()) {
		    System.out
			    .println("Current temperature is too high, turning off the Heater");
		    myHeater.turnOff();
		} else {
		    System.out
			    .println("Current temperature is too low, turning on the Heater");
		    myHeater.turnOn();
		}
	    }
	    if (myHeater.getStatus())
		labelHeater.setText("Heater is on");
	    else
		labelHeater.setText("Heater is off");
	} else
	    labelHeater.setText("No Heater");
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * javax.swing.event.ChangeListener#stateChanged(javax.swing.event.ChangeEvent
     * )
     */
    public void stateChanged(ChangeEvent e) {
	labelSetting.setText(userSetting.getValue() + "°C");
	updateHeater();
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
     */
    public void actionPerformed(ActionEvent e) {
	updateTemperature();
	updateHeater();

    }

}