package javafxsamples;

import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.builders.ButtonBuilder;
import javafx.builders.HBoxBuilder;
import javafx.builders.VBoxBuilder;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

/**
 * Test for listView selection
 * @author Alex
 */
public class ListViewTest extends Application{

    @Override
    public void start(Stage primaryStage) throws Exception {
        
        final ListView listView = new ListView();  
        listView.getItems().add("test");
        listView.getSelectionModel().select(0);
        final Label labelIndex = new Label();
        final Label labelObj = new Label();
        listView.getSelectionModel().selectedIndexProperty().addListener(new ChangeListener<Number>(){

            @Override
            public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
                System.out.println("selected index: oldvalue="+oldValue +", newValue="+newValue);
                labelIndex.setText(newValue.toString());
                labelObj.setText(listView.getSelectionModel().selectedItemProperty().toString());
            }
            
        });
//        labelIndex.textProperty().bind(
//                Bindings.concat(listView.getSelectionModel().selectedIndexProperty()));
//        labelObj.textProperty().bind(
//                Bindings.concat(listView.getSelectionModel().selectedItemProperty()));
        final Button button = new ButtonBuilder()
                .text("modify")
                .onAction(new EventHandler<ActionEvent>() {
                    @Override
                    public void handle(ActionEvent event) {
                        listView.getItems().clear();
                        listView.getItems().add("test1");
                        listView.getItems().add("test2");
                    }
                }).build();
        VBox box = new VBoxBuilder()
                .children(
                    button, 
                    new HBoxBuilder().children(new Label("index:"), labelIndex).build(), 
                    new HBoxBuilder().children(new Label("selection:"), labelObj).build(), 
                    listView)
                .build();
        primaryStage.setScene(new Scene(box, 200, 100));
        primaryStage.setVisible(true);
    }
    
    public static void main(String[] args) {
        launch(args);
    }
}