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/**
Copyright 2013 project Ardulink http://www.ardulink.org/
 
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.
*/
package org.ardulink.gui;

import static java.lang.Math.max;
import static java.lang.Math.min;
import static org.ardulink.core.Pin.analogPin;

import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JToggleButton;
import javax.swing.SwingConstants;

import org.ardulink.core.events.AnalogPinValueChangedEvent;
import org.ardulink.core.events.EventListener;
import org.ardulink.core.events.EventListenerAdapter;
import org.ardulink.core.events.FilteredEventListenerAdapter;
import org.ardulink.gui.facility.IntMinMaxModel;
import org.ardulink.legacy.Link;

/**
 * [ardulinktitle] [ardulinkversion]
 * This class implements the AnalogReadChangeListener interface and is able to listen
 * events coming from arduino board about analog pin state change.
 * project Ardulink http://www.ardulink.org/
 * 
 * [adsense]
 *
 */
public class AnalogPinStatus extends JPanel implements Linkable {


	private static final Font FONT_11 = new Font("SansSerif", Font.PLAIN, 11);
	private static final Font FONT_12 = new Font("SansSerif", Font.PLAIN, 12);

	private static final long serialVersionUID = 7927439571760351922L;

	private JLabel valueLabel;
	private JLabel voltValueLbl;
	private JProgressBar progressBar;
	private JComboBox minValueComboBox;
	private IntMinMaxModel minValueComboBoxModel;
	private JComboBox maxValueComboBox;
	private IntMinMaxModel maxValueComboBoxModel;
	private JComboBox pinComboBox;
	private IntMinMaxModel pinComboBoxModel;
	private JLabel lblPowerPinController;
	private JToggleButton tglbtnSensor;
	
	private transient EventListener listener;

	private FilteredEventListenerAdapter listener() {
		return new FilteredEventListenerAdapter(analogPin(pinComboBoxModel.getSelectedItem().intValue()),
				new EventListenerAdapter() {
					@Override
					public void stateChanged(AnalogPinValueChangedEvent event) {
						Integer value = event.getValue();
						valueLabel.setText(String.valueOf(value));

						float volt = (((float) value) * 5.0f) / 1023.0f;
						voltValueLbl.setText(volt + "V");

						float progress = ((value - getMinValue()) * 100.0f)
								/ ((float) getMaxValue() - (float) getMinValue());
						progressBar.setValue((int) progress);
					}
				});
	}

	private transient Link link;

	/**
	 * Create the panel.
	 */
	public AnalogPinStatus() {
		setPreferredSize(new Dimension(140, 260));
		setLayout(null);
		
		JLabel lblPowerPin = new JLabel("Power Pin:");
		lblPowerPin.setFont(FONT_11);
		lblPowerPin.setBounds(10, 40, 59, 14);
		add(lblPowerPin);
	
		// TODO define a method to be able to change the set of controllable pins. This way you can work with different boards than an Arduino UNO
		// pinComboBox.setModel(new DefaultComboBoxModel(new String[] {"3", "5", "6", "9", "10", "11"}));
		pinComboBoxModel = new IntMinMaxModel(0, 40);
		pinComboBox = new JComboBox<>(pinComboBoxModel);
		pinComboBox.setSelectedItem(Integer.valueOf(0));
		pinComboBox.setBounds(65, 36, 62, 22);
		add(pinComboBox);
		
		maxValueComboBoxModel = new IntMinMaxModel(0, 1023).withLastItemSelected();
		maxValueComboBox = new JComboBox<>(maxValueComboBoxModel);
		maxValueComboBox.setBounds(65, 65, 62, 22);
		add(maxValueComboBox);

		minValueComboBoxModel = new IntMinMaxModel(0, 1023).withFirstItemSelected();
		minValueComboBox = new JComboBox<>(minValueComboBoxModel);
		minValueComboBox.setBounds(65, 217, 62, 22);
		add(minValueComboBox);
		
		JLabel lblMaxValue = new JLabel("Max Value:");
		lblMaxValue.setFont(FONT_11);
		lblMaxValue.setBounds(10, 69, 59, 14);
		add(lblMaxValue);
		
		JLabel lblMinValue = new JLabel("Min Value:");
		lblMinValue.setFont(FONT_11);
		lblMinValue.setBounds(10, 221, 59, 14);
		add(lblMinValue);
		
		progressBar = new JProgressBar();
		progressBar.setFont(FONT_11);
		progressBar.setStringPainted(true);
		progressBar.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
		progressBar.setOrientation(SwingConstants.VERTICAL);
		progressBar.setBounds(111, 99, 16, 108);
		add(progressBar);
		
		lblPowerPinController = new JLabel("Analog PIN Status");
		lblPowerPinController.setFont(FONT_12);
		lblPowerPinController.setToolTipText("");
		lblPowerPinController.setHorizontalAlignment(SwingConstants.CENTER);
		lblPowerPinController.setBounds(10, 11, 117, 14);
		add(lblPowerPinController);
		
		JLabel lblVoltOutput = new JLabel("Volt Output:");
		lblVoltOutput.setFont(FONT_11);
		lblVoltOutput.setBounds(10, 143, 59, 14);
		add(lblVoltOutput);
		
		voltValueLbl = new JLabel("0V");
		voltValueLbl.setFont(FONT_11);
		voltValueLbl.setBounds(10, 157, 76, 14);
		add(voltValueLbl);
		
		JLabel lblCurrentValue = new JLabel("Current Value:");
		lblCurrentValue.setFont(FONT_11);
		lblCurrentValue.setBounds(10, 98, 76, 14);
		add(lblCurrentValue);
		
		valueLabel = new JLabel();
		valueLabel.setBounds(10, 112, 55, 22);
		valueLabel.setText("0");
		add(valueLabel);
		
		tglbtnSensor = new JToggleButton("Off");
		tglbtnSensor.addItemListener(new ItemListener() {

			@Override
			public void itemStateChanged(ItemEvent e) {
				if(e.getStateChange() == ItemEvent.SELECTED) {
					link.addAnalogReadChangeListener((listener = listener()));
					
					tglbtnSensor.setText("On");
					pinComboBox.setEnabled(false);
					minValueComboBox.setEnabled(false);
					maxValueComboBox.setEnabled(false);
					
					progressBar.setEnabled(true);
					
					
				} else if(e.getStateChange() == ItemEvent.DESELECTED) {
					link.removeAnalogReadChangeListener(listener);
					
					tglbtnSensor.setText("Off");
					pinComboBox.setEnabled(true);
					minValueComboBox.setEnabled(true);
					maxValueComboBox.setEnabled(true);

					progressBar.setEnabled(false);
				}
			}
		});
		tglbtnSensor.setBounds(10, 177, 76, 28);
		add(tglbtnSensor);
		
		minValueComboBox.addActionListener(e -> {
			int maximum = getMaxValue();
			int minimum = getMinValue();
			
			if (minimum > maximum) {
				minValueComboBoxModel.setSelectedItem(maximum);
			}
			updateValue();
		});

		maxValueComboBox.addActionListener(e -> {
			int maximum = getMaxValue();
			int minimum = getMinValue();

			if (minimum > maximum) {
				maxValueComboBoxModel.setSelectedItem(minimum);
			}
			updateValue();
		});

	}
	
	/**
	 * Set the pin to control
	 * @param pin the pin number to control
	 */
	public void setPin(int pin) {
		pinComboBoxModel.setSelectedItem(pin);
	}

	@Override
	public void setLink(Link link) {
		if (this.link != null && this.listener != null) {
			this.link.removeAnalogReadChangeListener(this.listener);
		}
		this.link = link;
	}

	public void setTitle(String title) {
		lblPowerPinController.setText(title);
	}
		
	public int getValue() {
		return Integer.parseInt(valueLabel.getText());
	}

	public void setValue(int value) {
		valueLabel.setText(String.valueOf(max(getMinValue(),
				min(value, getMaxValue()))));
	}

	public int getMinValue() {
		return minValueComboBoxModel.getSelectedItem().intValue();
	}
	
	public int getMaxValue() {
		return maxValueComboBoxModel.getSelectedItem().intValue();
	}
	
	private void updateValue() {
		setValue(getValue());
	}

}