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package jcgp.gui.handlers;

import javafx.event.EventHandler;
import javafx.scene.input.MouseEvent;
import jcgp.backend.population.Gene;
import jcgp.gui.GUI;
import jcgp.gui.population.GUIGene;
import jcgp.gui.population.GUIGene.GUIGeneState;
import jcgp.gui.population.GUINode;

public final class NodeHandlers {

	private static EventHandler<MouseEvent> mouseEnteredHandler = new EventHandler<MouseEvent>() {
		@Override
		public void handle(MouseEvent event) {
			// acquire the source, we can safely cast it to GUINode
			GUINode source = (GUINode) event.getSource();
			source.setState(GUIGeneState.HOVER);

			for (int i = 0; i < GUI.resources.arity(); i++) {
				((GUIGene) ((Gene) source.getNode().getConnection(i)).getGUIObject()).setState(GUIGeneState.EXTENDED_HOVER);
			}
		}
	};

	private static EventHandler<MouseEvent> mouseExitedHandler = new EventHandler<MouseEvent>() {
		@Override
		public void handle(MouseEvent event) {
			// acquire the source, we can safely cast it to GUINode
			GUINode source = (GUINode) event.getSource();

			source.setState(GUIGeneState.NEUTRAL);

			for (int i = 0; i < GUI.resources.arity(); i++) {
				((GUIGene) ((Gene) source.getNode().getConnection(i)).getGUIObject()).setState(GUIGeneState.NEUTRAL);
			}
		}
	};

	public static void addHandlers(GUINode node) {
		node.addEventHandler(MouseEvent.MOUSE_ENTERED, mouseEnteredHandler);
		node.addEventHandler(MouseEvent.MOUSE_EXITED, mouseExitedHandler);
	}
}