CustomToolBarExample.java

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.stage.Stage;

public class ToolbarCustomExample extends Application
{

  @Override
  public void start( final Stage primaryStage )
  {
    final Button left = new Button( "left button" );
    final Button left1 = new Button( "left1 button" );
    final Button left2 = new Button( "left2 button" );
    final Button right = new Button( "right button" );
    final Button right1 = new Button( "right1 button" );
    final Button right2 = new Button( "right2 button" );
    final Button right3 = new Button( "right3 button" );
    final Button center = new Button( "center button" );
    final Button center1 = new Button( "center1 button" );

    /*
     * Simply use an HBox instead of a StackPane. A StackPane is used to center and stack Nodes on top of each
     * other (Z-Order).
     */
    final HBox toolBar = new HBox();
    final HBox leftSection = new HBox( left, left1, left2 );
    final HBox centerSection = new HBox( center, center1 );
    final HBox rightSection = new HBox( right, right1, right2, right3 );


    /* Center all sections and always grow them. Has the effect known as JUSTIFY. */
    toolBar.setAlignment( Pos.CENTER );
    HBox.setHgrow( leftSection, Priority.ALWAYS );
    HBox.setHgrow( centerSection, Priority.ALWAYS );
    HBox.setHgrow( rightSection, Priority.ALWAYS );

    leftSection.setAlignment( Pos.CENTER_LEFT );
    centerSection.setAlignment( Pos.CENTER );
    rightSection.setAlignment( Pos.CENTER_RIGHT );


    /*
     * There might be some properties you might want to propagate down from the hbox container to all
     * sections:
     */
    toolBar.setFillHeight( true );
    toolBar.setSpacing( 8 );
    leftSection.spacingProperty().bind( toolBar.spacingProperty() );
    centerSection.spacingProperty().bind( toolBar.spacingProperty() );
    rightSection.spacingProperty().bind( toolBar.spacingProperty() );


    toolBar.getChildren().addAll( leftSection, centerSection, rightSection );

    left.setOnAction( event -> System.out.println( "left" ) );
    right.setOnAction( event -> System.out.println( "right" ) );
    center.setOnAction( event -> System.out.println( "center" ) );

    final Scene scene = new Scene( toolBar );

    primaryStage.setScene( scene );
    primaryStage.show();
  }

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