package taht;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;

public class Demo extends Application {

    public static void main(String[] args) {
        Application.launch(args);
    }

    @Override
    public void start(final Stage primaryStage) {

        Pane root = new Pane();

        GridPane gridPane = new GridPane();
        gridPane.setGridLinesVisible(true);

        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 5; j++) {

                Label label = new Label("Label " + i + "/" + j);
                label.setMouseTransparent(true);
                GridPane.setRowIndex(label, i);
                GridPane.setColumnIndex(label, j);

                gridPane.getChildren().add(label);
            }
        }

        root.getChildren().add(gridPane);

        Scene scene = new Scene(root, 400, 300, Color.WHITE);
        primaryStage.setScene(scene);

        primaryStage.show();

        gridPane.addEventFilter(MouseEvent.MOUSE_PRESSED, new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent e) {

                for (Node node : gridPane.getChildren()) {

                    if (node instanceof Label) {
                        if (node.getBoundsInParent().contains(e.getSceneX(), e.getSceneY())) {
                            System.out.println("Node: " + node + " at " + GridPane.getRowIndex(node) + "/" + GridPane.getColumnIndex(node));
                        }
                    }
                }
            }
        });

    }

}