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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 java.awt.ComponentOrientation;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JSlider;
import javax.swing.SwingConstants;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import org.ardulink.gui.event.PWMChangeEvent;
import org.ardulink.gui.event.PWMControllerListener;
import org.ardulink.gui.facility.IntMinMaxModel;
import org.ardulink.legacy.Link;

/**
 * [ardulinktitle] [ardulinkversion]
 * This class can manage power with modulation arduino pins sending specific messages to
 * the arduino board. It has many components to ensure maximum flexibility in the
 * management of these pins.
* project Ardulink http://www.ardulink.org/
 * 
 * [adsense]
 *
 */
public class PWMController 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 JSlider powerSlider;
	private JComboBox valueComboBox;
	private IntMinMaxModel valueComboBoxModel;
	private JLabel voltValueLbl;
	private JCheckBox chckbxContChange;
	private JProgressBar progressBar;
	private IntMinMaxModel maxValueComboBoxModel;
	private IntMinMaxModel minValueComboBoxModel;
	private JComboBox pinComboBox;
	private JLabel lblPowerPinController;
	
	private List pwmControllerListeners = new ArrayList<>();
	
	private transient Link link;

	/**
	 * Create the panel.
	 */
	public PWMController() {
		setPreferredSize(new Dimension(195, 260));
		setLayout(null);
		
		powerSlider = new JSlider();
		powerSlider.setFont(FONT_11);
		powerSlider.setMajorTickSpacing(15);
		powerSlider.setPaintLabels(true);
		powerSlider.setPaintTicks(true);
		powerSlider.setMaximum(255);
		powerSlider.setValue(0);
		powerSlider.setOrientation(SwingConstants.VERTICAL);
		powerSlider.setBounds(126, 38, 59, 199);
		add(powerSlider);
		
		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"}));
		IntMinMaxModel pinComboBoxModel = new IntMinMaxModel(0, 40);
		pinComboBox = new JComboBox(pinComboBoxModel);
		pinComboBox.setSelectedItem(Integer.valueOf(11));
		pinComboBox.setBounds(65, 36, 55, 22);
		add(pinComboBox);
		
		maxValueComboBoxModel = new IntMinMaxModel(0, 1023).withSelectedItem(255);
		JComboBox maxValueComboBox = new JComboBox<>(maxValueComboBoxModel);
		maxValueComboBox.setBounds(65, 65, 55, 22);
		add(maxValueComboBox);

		minValueComboBoxModel = new IntMinMaxModel(0, 1023).withFirstItemSelected();
		JComboBox minValueComboBox = new JComboBox<>(minValueComboBoxModel);
		minValueComboBox.setBounds(65, 217, 55, 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(96, 98, 16, 108);
		add(progressBar);
		
		lblPowerPinController = new JLabel("Power Pin Controller");
		lblPowerPinController.setFont(FONT_12);
		lblPowerPinController.setToolTipText("Power With Modulation");
		lblPowerPinController.setHorizontalAlignment(SwingConstants.CENTER);
		lblPowerPinController.setBounds(10, 11, 175, 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);
		
		valueComboBoxModel = new IntMinMaxModel(0, 255).withFirstItemSelected();
		valueComboBox = new JComboBox<>(valueComboBoxModel);
		valueComboBox.addActionListener(e -> {
			int comboBoxCurrentValue = valueComboBoxModel.getSelectedItem().intValue();
			int powerSliderCurrentValue = powerSlider.getValue();
			if(comboBoxCurrentValue != powerSliderCurrentValue) {
				powerSlider.setValue(comboBoxCurrentValue);
			}
		});
		valueComboBox.setBounds(10, 112, 55, 22);
		add(valueComboBox);
		
		JLabel lblContinuousChange = new JLabel("Cont. Change:");
		lblContinuousChange.setFont(FONT_11);
		lblContinuousChange.setToolTipText("Continuous Change");
		lblContinuousChange.setBounds(10, 176, 73, 14);
		add(lblContinuousChange);
		
		chckbxContChange = new JCheckBox("");
		chckbxContChange.setRequestFocusEnabled(false);
		chckbxContChange.setRolloverEnabled(true);
		chckbxContChange.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
		chckbxContChange.setSelected(true);
		chckbxContChange.setBounds(6, 188, 21, 22);
		add(chckbxContChange);
		
		powerSlider.addChangeListener(new ChangeListener() {
			@Override
			public void stateChanged(ChangeEvent e) {
				if (!powerSlider.getValueIsAdjusting() || chckbxContChange.isSelected()) {
			        int powerValue = powerSlider.getValue();
			        valueComboBoxModel.setSelectedItem(powerValue);
			        float volt = ((powerValue)*5.0f)/255.0f;
					voltValueLbl.setText(volt + "V");
			        float progress  = ((powerValue - powerSlider.getMinimum())*100.0f)/((float)powerSlider.getMaximum() - (float)powerSlider.getMinimum());
			        progressBar.setValue((int)progress);
			        
			        notifyListeners(powerValue);
			        
			        int pin = ((Integer)pinComboBox.getSelectedItem()).intValue();
			        link.sendPowerPinIntensity(pin, powerValue);
			    }
			}

		});
		
		minValueComboBox.addActionListener(e -> {
			int maximum = maxValueComboBoxModel.getSelectedItem().intValue();
			int minimum = minValueComboBoxModel.getSelectedItem().intValue();
			
			if(minimum > maximum) {
				minValueComboBoxModel.setSelectedItem(maximum);
			}
			
			valueComboBoxModel = new IntMinMaxModel(minimum, maximum);
			valueComboBox.setModel(valueComboBoxModel);
			powerSlider.setPaintLabels(false);
			powerSlider.setPaintTicks(false);
			powerSlider.setMajorTickSpacing((maximum - minimum) / 18);
			powerSlider.setMinimum(minimum);
			powerSlider.setPaintLabels(true);
			powerSlider.setPaintTicks(true);
		});

		maxValueComboBox.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				int maximum = maxValueComboBoxModel.getSelectedItem().intValue();
				int minimum = minValueComboBoxModel.getSelectedItem().intValue();

				if(minimum > maximum) {
					maxValueComboBoxModel.setSelectedItem(minimum);
				}
				
				valueComboBoxModel = new IntMinMaxModel(minimum, maximum);
				valueComboBox.setModel(valueComboBoxModel);
				powerSlider.setPaintLabels(false);
				powerSlider.setPaintTicks(false);
				powerSlider.setMajorTickSpacing((maximum - minimum) / 18);
				powerSlider.setMaximum(maximum);
				powerSlider.setPaintLabels(true);
				powerSlider.setPaintTicks(true);
			}
		});

	}

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

	@Override
	public void setLink(Link link) {
		this.link = link;
	}

	public void setTitle(String title) {
		lblPowerPinController.setText(title);
	}
	
	public boolean addPWMControllerListener(PWMControllerListener listener) {
		return pwmControllerListeners.add(listener);
	}
	
	public boolean removePWMControllerListener(PWMControllerListener listener) {
		return pwmControllerListeners.remove(listener);
	}

	private void notifyListeners(int powerValue) {
		PWMChangeEvent event = new PWMChangeEvent(powerValue);
		for (PWMControllerListener pwmControllerListener : pwmControllerListeners) {
			pwmControllerListener.pwmChanged(event);
		}
	}
	
	public int getValue() {
		return valueComboBoxModel.getSelectedItem().intValue();
	}

	public void setValue(int value) {
		int maximum = maxValueComboBoxModel.getSelectedItem().intValue();
		int minimum = minValueComboBoxModel.getSelectedItem().intValue();
		valueComboBoxModel.setSelectedItem(max(min(value, maximum), minimum));
	}

}