package jcgp.gui.population;

import javafx.scene.paint.Paint;
import javafx.scene.shape.Circle;
import jcgp.backend.population.Input;
import jcgp.gui.constants.Constants;
import jcgp.gui.constants.Position;
import jcgp.gui.handlers.InputHandlers;

/**
 * The GUI counterpart of {@link jcgp.backend.population.Input}. This is a 
 * subclass of {@code GUIGene} which represents a chromosome input.
 * 
 * @author Eduardo Pedroni
 */
public class GUIInput extends GUIGene implements GUIConnection {

	private Input input;
	
	/**
	 * Instantiate {@code GUIInput} given an {@code Input}.
	 * 
	 * @param input the associated backend input.
	 */
	public GUIInput(final Input input) {
		super();
		// store the input, associate itself with it
		this.input = input;
		input.setGUIObject(this);
		
		// inputs only have a single output socket
		Circle outputSocket = new Circle(Constants.NODE_RADIUS, 0, Constants.SOCKET_RADIUS, Paint.valueOf("white"));
		outputSocket.setStroke(Paint.valueOf("black"));
		outputSocket.setId(String.valueOf(0));
		getChildren().add(outputSocket);
		
		// relocate to the right position, add mouse handlers
		Position.place(this);
		InputHandlers.addHandlers(this);
	}

	/**
	 * @return the {@code Input} instance associated with this object.
	 */
	public Input getInput() {
		return input;
	}
	
	/**
	 * Associates this instance with a new input.
	 * 
	 * @param input the new input.
	 */
	void setInput(Input input) {
		this.input = input;
	}

	@Override
	public void setStateRecursively(GUIGeneState state) {
		setState(state);
	}

	@Override
	protected void setLinesVisible(boolean value) {}

	@Override
	public void setLockRecursively(boolean value) {
		setLock(value);
	}
}