child z ordering

[Kevin Rushforth]

See Parent::viewOrder.

-- Kevin

On 4/12/2019 12:32 PM, James Dunsdon wrote:
> Hi,
>
> I'm wondering if there is any consideration towards being able to 
> modify child Z ordering. Currently it only seems based on add order. 
> There are a few use cases where slight overlapping might be desired in 
> which case z ordering should be independently controllable of layout 
> order. toFront(), toBack() only seem to work with Groups. I've given a 
> code example of a use case below. My current workaround is to use 
> rotations to created the desired effect.
>
>
> import javafx.application.Application;
> import javafx.geometry.Pos;
> import javafx.scene.Node;
> import javafx.scene.Parent;
> import javafx.scene.Scene;
> import javafx.scene.layout.HBox;
> import javafx.scene.layout.VBox;
> import javafx.scene.paint.Color;
> import javafx.scene.shape.Circle;
> import javafx.scene.shape.Rectangle;
> import javafx.stage.Stage;
>
> public class Main extends Application {
>
>     @Override
>     public void start(Stage primaryStage) throws Exception{
>         Parent root = new VBox(createDefaultBehavior(), 
> createPreferredBehavior());
>         primaryStage.setTitle("Hello World");
>         primaryStage.setScene(new Scene(root, 300, 275));
>         primaryStage.show();
>     }
>
>     private Node createDefaultBehavior(){
>         HBox box = new HBox(createCircle(), createRectangle());
>         box.setAlignment(Pos.CENTER_LEFT);
>         box.setSpacing(-10);
>         return box;
>     }
>
>     /*
>     in this case since we are using symmetric shapes the node 
> rotations are unnecessary,
>     however they would be required for most content
>      */
>     private Node createPreferredBehavior(){
>         Node circle = createCircle();
>         circle.setRotate(-180);
>         Node rectangle = createRectangle();
>         rectangle.setRotate(-180);
>         HBox box = new HBox(rectangle, circle);
>         box.setAlignment(Pos.CENTER_RIGHT);
>         box.setRotate(180);
>         box.setSpacing(-10);
>         return box;
>     }
>
>     private Node createCircle(){
>         Circle circle = new Circle(30, Color.RED);
>         circle.setStroke(Color.GOLDENROD);
>         circle.setStrokeWidth(4.0);
>         return circle;
>     }
>
>     private Node createRectangle(){
>         Rectangle rectangle = new Rectangle(100, 40, Color.GREEN);
>         rectangle.setStroke(Color.GOLDENROD);
>         rectangle.setStrokeWidth(4.0);
>         return rectangle;
>     }
>
>
>     public static void main(String[] args) {
>         launch(args);
>     }
> }
>
>
> Thanks,
>
> James Dunsdon
>
> (nervous first time poster)
>
>
>