ListView/TableView in VBox breaks layout.

Affects JavaFX 8.0 b84

Appearently, if you put a ListView/TableView inside a VBox, it behaves very strange.

It has something to do with the VBox's minHeight/prefHeight/maxHeight.

The height calculation of the ListView seems to be wrong. Change the height values to see the effect.


import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.geometry.Orientation;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.scene.layout.VBoxBuilder;
import javafx.stage.Stage;

public class TestApp5 extends Application {

    public static void main(String[] args) {
        try {
            launch(args);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void start(final Stage stage) throws Exception {

        SplitPane splitPane = new SplitPane();
        splitPane.setOrientation(Orientation.VERTICAL);

        ListView<String> listView = new ListView<String>();

        ObservableList<String> items = FXCollections.observableArrayList();
        listView.setItems(items);

        for (int i = 0; i < 30; i++) {
            items.add(Integer.toString(i));
        }


        VBox root = new VBox();

        VBox vBox = VBoxBuilder.create().children(listView).build();
        splitPane.getItems().add(vBox);

        Button button = new Button();
        button.setPrefHeight(100);
        splitPane.getItems().add(button);

        // Change these values.
        //vBox.setMinHeight(0);
        vBox.setPrefHeight(100);
        vBox.setMaxHeight(100);
        //

        root.getChildren().add(splitPane);

        Scene scene = new Scene(root);
        stage.setScene(scene);
        stage.show();
    }
}