import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.TreeView;
import javafx.scene.Group;
import javafx.scene.control.Label;
import javafx.scene.control.TreeItem;
import javafx.scene.layout.VBox;
/**
 *
 * @author vakulova
 */
public class TreeViewSimpleTest extends Application {
    public static void main(String[] args) {
        launch(args);
    }
    static String dataType = "String";
    static String keyOrMouse = "Key";
    
    public static TreeView createTreeView(String dataType) {
        TreeView treeview = new TreeView();
        //TODO: Uncomment the following when TreeItem becomes avaialable in the SDK.
        TreeItem treeitem = new TreeItem();
        treeitem.setValue("Controls");
        TreeItem treeitem2 = new TreeItem();
        treeitem2.setValue("Buttons");
        TreeItem treeitem3 = new TreeItem();
        treeitem3.setValue("Button");
        TreeItem treeitem4 = new TreeItem();
        treeitem4.setValue("ButtonBar");
        TreeItem treeitem5 = new TreeItem();
        treeitem5.setValue("LinkBar");
        TreeItem treeitem6 = new TreeItem();
        treeitem6.setValue("LinkButton");
        TreeItem treeitem7 = new TreeItem();
        treeitem7.setValue("PopUpButton");
        TreeItem treeitem8 = new TreeItem();
        treeitem8.setValue("ToggleButtonBar");
        treeitem2.getChildren().clear();
        treeitem2.getChildren().addAll(treeitem3, treeitem4, treeitem5, treeitem6, treeitem7, treeitem8);
        TreeItem treeitem9 = new TreeItem();
        treeitem9.setValue("Form Elements");
        TreeItem treeitem10 = new TreeItem();
        treeitem10.setValue("CheckBox");
        TreeItem treeitem11 = new TreeItem();
        treeitem11.setValue("ComboBox");
        TreeItem treeitem12 = new TreeItem();
        treeitem12.setValue("DateChooser");
        TreeItem treeitem13 = new TreeItem();
        treeitem13.setValue("NumericStepper");
        TreeItem treeitem14 = new TreeItem();
        treeitem14.setValue("RadioButton");
        TreeItem treeitem15 = new TreeItem();
        treeitem15.setValue("TextArea");
        TreeItem treeitem16 = new TreeItem();
        treeitem16.setValue("TextInput");
        treeitem9.getChildren().clear();
        treeitem9.getChildren().addAll(treeitem10, treeitem11, treeitem12, treeitem13, treeitem14, treeitem15, treeitem16);
        TreeItem treeitem17 = new TreeItem();
        treeitem17.setValue("Lists");
        TreeItem treeitem18 = new TreeItem();
        treeitem18.setValue("List");
        TreeItem treeitem19 = new TreeItem();
        treeitem19.setValue("Tree");
        treeitem17.getChildren().clear();
        treeitem17.getChildren().addAll(treeitem18, treeitem19);
        TreeItem treeitem20 = new TreeItem();
        treeitem20.setValue("ColorPicker");
        TreeItem treeitem21 = new TreeItem();
        treeitem21.setValue("DataGrid");
        TreeItem treeitem22 = new TreeItem();
        treeitem22.setValue("MenuBar");
        TreeItem treeitem23 = new TreeItem();
        treeitem23.setValue("ProgressBar");
        TreeItem treeitem24 = new TreeItem();
        treeitem24.setValue("ToolTip");
        treeitem.getChildren().clear();
        treeitem.getChildren().addAll(treeitem2, treeitem9, treeitem17, treeitem20, treeitem21, treeitem22, treeitem23, treeitem24);
        treeview.setRoot(treeitem);
        return treeview;
    }

    @Override
    public void start(Stage stage) throws Exception {
        final Label selectedItemLabel = new Label();
        final Label prevSelectedItemLabel = new Label();
        final Label testLabel = new Label();
        final TreeView treeView = createTreeView(dataType);
        treeView.getSelectionModel().selectedItemProperty().addListener(new ChangeListener() {

            public void changed(ObservableValue ov, Object t, Object t1) {
                testLabel.setText("Selected Item:" + treeView.getSelectionModel().selectedItemProperty().getValue() + 
                        " FocusedItem:" + treeView.getFocusModel().focusedItemProperty().getValue());
                
                if (t != null) 
                    prevSelectedItemLabel.setText("Previous selected: " + ((TreeItem) t).getValue().toString());
                else
                    prevSelectedItemLabel.setText("Previous selected: NULL");
                if (t1 != null)
                    selectedItemLabel.setText("Selected: " + ((TreeItem) t1).getValue().toString());
                else
                    selectedItemLabel.setText("Selected: NULL");
                
            }
        });
        
        stage.setTitle("TreeView Test");
        VBox vbox = new VBox(5.0F);
        vbox.getChildren().clear();
        vbox.getChildren().addAll(selectedItemLabel,prevSelectedItemLabel,testLabel, treeView);
        Group group = new Group();
        Scene scene = new Scene(group, 300, 300);
        ((javafx.scene.Group) scene.getRoot()).getChildren().clear();
        ((javafx.scene.Group) scene.getRoot()).getChildren().addAll(vbox);
        stage.setScene(scene);
        treeView.requestFocus();
        stage.show();
        
    }
}