center (subscene) of borderpane not resizing

Question

I'm making an application that uses a SubScene instance on the BorderPane center, and on the right side i want to put a vbox with some content. The subscene starts with the correct size, and resizes perfectly when maximizing the window. before maximizing , maximized

The problem is, when minimizing the window this happens: minimized

What can I do?

Here's how I managed the resizing system:

SubScene subScene = new SubScene(group, 1200, 700, true, SceneAntialiasing.BALANCED);  
HBox centerBox = new HBox();

subScene.widthProperty().bind(centerBox.widthProperty());
subScene.heightProperty().bind(centerBox.heightProperty());

centerBox.getChildren().add(subScene);

Answer 1

For anyone with the same problem. I solved it by binding the SubScene width and height properties with the scene's, and then subtracting the width(200) and height(75) of adjacent nodes:

    //  Scene scene = new Scene(root, 1200, 800, true);
    //  SubScene subScene = new SubScene(group, 1200, 700, true, SceneAntialiasing.BALANCED);
    //  centerBox is an instance of HBox

    subScene.widthProperty().bind(scene.widthProperty().subtract(200));
    subScene.heightProperty().bind(scene.heightProperty().subtract(75));
    centerBox.getChildren().add(subScene);