package semestre;
import javax.swing.*;
import java.awt.*;
import javax.swing.event.*;
import java.awt.event.*;

public class Autocompletar extends JComboBox{
	//Array a usar.
	String [] Last = {"Lapiz","Regla","Lampara","Remache","Pluma","Pincel","Plumon","Pizarron","Pintarron","Lamina"};
	
	//Escuchador para KeyPressed asociada al JTextField dentro del JComboBox
	KeyListener listener = new KeyListener() {
	      public void keyTyped(KeyEvent keyEvent) {
	      }
	      public void keyPressed(KeyEvent keyEvent) {
	      }
	      public void keyReleased(KeyEvent keyEvent) {
	    	  Metodo();
	      }};
	
	//Constructor 
	public Autocompletar(){
		this.setEditable(true);
		Component Inicializador = this.getEditor().getEditorComponent();
		Inicializador.addKeyListener(listener);
	}
	
	
	//Metodo que trabaja al JComboBox
	public void Metodo(){
		JTextField tf = (JTextField) this.getEditor().getEditorComponent();
		this.setSelectedItem(tf.getText());
		glorioso(tf.getText(),Last);
		this.setPopupVisible(false);
		this.setPopupVisible(true);
	}

	//Metodo para limpiar el combo y solo dejar las palabras que coincidan dentro del array que se envia.
	public void glorioso (String Word, String[] Array){
		
		while (this.getItemCount()!=0)
			this.removeItemAt(0);
		
		if (Word.length()!=0)
		for (int i=0;i<=Array.length-1;i++){
			if (poderoso(Array[i],Word))
				this.addItem(Array[i]);
		}
		
	}
	
	//Metodo para comparar una palabra con la otra.
	public boolean poderoso(String Check, String Target){
		for (int i=0;i<=Target.length()-1;i++){
			try {
				if (Check.charAt(i)!=Target.charAt(i))
					return false;
			} catch (Exception r) {
				System.out.println("Error al comparar");
				return false;
			}
		}
		return true;
	}
	
}