package org.hwo.pulscounter.ui;

import javax.swing.JCheckBox;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import java.awt.FlowLayout;
import java.awt.MenuItem;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.LinkedList;
import java.util.List;

public class JBitSetter extends JPanel {

	/**
	 * Create the panel.
	 */
	
	JCheckBox[] checkboxes;
	
	JPopupMenu contextMenu;
	
	List<ActionListener> actionListeners;
	
	
	public JBitSetter() {
		setLayout(new FlowLayout(FlowLayout.CENTER, 0, 5));
			
		this.checkboxes = new JCheckBox[32];
		this.actionListeners = new LinkedList<ActionListener>();
		
		for (int i=0;i<32;i++){
			this.checkboxes[i] = new JCheckBox();
//			this.checkboxes[i].setText(String.format("%d", i));
			this.checkboxes[i].setInheritsPopupMenu(true);
			this.checkboxes[i].setToolTipText(String.format("%d", i));
/*			this.checkboxes[i].addChangeListener(new ChangeListener() {
				
				@Override
				public void stateChanged(ChangeEvent e) {
					fireAction();
				}
			});
*/
			this.checkboxes[i].addActionListener(new ActionListener() {
				
				@Override
				public void actionPerformed(ActionEvent e) {
					fireAction();
				}
			});
			
			this.add(this.checkboxes[i]);
		}
		
		contextMenu = new JPopupMenu();
		JMenuItem mi = new JMenuItem("Keins");
		mi.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				for (int i=0;i<32;i++){
					checkboxes[i].setSelected(false);
				}
				fireAction();
			}
		});
		contextMenu.add(mi);
		mi = new JMenuItem("Alle");
		mi.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				for (int i=0;i<32;i++){
					checkboxes[i].setSelected(true);
				}			
				fireAction();
			}
		});
		contextMenu.add(mi);
		
		setComponentPopupMenu(contextMenu);
		
		invalidate();
	}
	
	public void addActionListener(ActionListener listener){
		this.actionListeners.add(listener);
	}
	public void removeActionListener(ActionListener listener){
		this.actionListeners.remove(listener);
	}
	
	protected void fireAction(){
		for (ActionListener listener: this.actionListeners){
			listener.actionPerformed(new ActionEvent(this, 0, ""));
		}
	}
	
	public void setValue(Integer value){
		for (int i=0;i<32;i++){
			this.checkboxes[i].setSelected(  (value & (1<<i))!=0 );
		}
	}
	
	public Integer getValue(){
		Integer n = 0;
		for (int i=0;i<32;i++){
			if (this.checkboxes[i].isSelected())
				n |= 1<<i;
		}
		return n;
	}
	

}