package tests;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.input.MouseEvent;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
/**
 *
 * @author sjiang
 */
public class MyTabPane2 extends Application {

    public static boolean toAdd = false;
    public static Tab toAddTab;

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

    @Override
    public void start(Stage stage) throws Exception {
        TabPane tp1 = create("1");
        Scene scene = new Scene(tp1);
        stage.setScene(scene);
        stage.setVisible(true);
    }

    public TabPane create(String id) {
        final TabPane tabPane = new TabPane();

        Rectangle rec1 = new Rectangle(50, 50);
        rec1.setFill(Color.RED);
        Tab tab1 = new Tab();
        tab1.setContent(rec1);
        tab1.setText("1");

        Rectangle rec2 = new Rectangle(50, 50);
        rec2.setFill(Color.BLACK);
        Tab tab2 = new Tab();
        tab2.setContent(rec2);
        tab2.setText("2");

        Rectangle rec3 = new Rectangle(50, 50);
        rec3.setFill(Color.BLUE);
        Tab tab3 = new Tab();
        tab3.setContent(rec3);
        tab3.setText("3");

        toAddTab = tab1;

        tabPane.setOnMouseClicked(new EventHandler<MouseEvent>() {

            @Override
            public void handle(MouseEvent me) {
                if (toAdd) {
                    tabPane.getTabs().add(toAddTab);
                    toAdd = false;
                    System.out.println("---jsl clicked to add a tab. Size=" + tabPane.getTabs().size());
                } else {
                    for (Tab tab : tabPane.getTabs()) {
                        if (tab.isSelected()) {
                            toAddTab = tab;
                            break;
                        }
                    }
                    tabPane.getTabs().remove(toAddTab);
                    toAdd = true;
                    System.out.println("---jsl clicked to remove a tab. Size=" + tabPane.getTabs().size());
                }

                checkSelection(tabPane);
            }
        });

        tabPane.getTabs().addAll(tab1, tab2, tab3);
        tabPane.resize(200, 200);

        return tabPane;
    }

    private void checkSelection(TabPane tabPane) {
        int selected = 0;
        for (Tab t : tabPane.getTabs()) {
            if (t.isSelected()) {
                selected++;
            }
        }

        if (selected != 1) {
            throw new RuntimeException("Can select more than one tab ?");
        }
    }
}