jfx.layout

The layout package contains additional classes used for JavaFX layouts. It adds new layouts such as those already available in the layout package, but which work similar to the QML anchor-based layouts

Overview

The principal class of the package is the NodeAnchor class. It provides an anchor mechanism similar to the one which is used in QML. However, contrary to QML, it also manages several Shape classes. Shapes which are natively managed are:

• javafx.scene.layout.Region
• javafx.scene.shape.Rectangle
• javafx.scene.shape.Circle
• javafx.scene.shape.Ellipse
• javafx.scene.shape.Arc
• javafx.scene.text.Text

Usage

This class defines bindings between Nodes. To use this class, you should:

• Use the NodeAnchor class to define the anchors between the Nodes. The usual way to perform this is to create an instance of the class and specify the reference Node at the class creation,a d specify the ancoring of other Nodes relative to this Node
• Put the Nodes normally in a Pane

Example

In the following example, a rectangle and a text are put on top of each other:

   Rectangle rec = new Rectangle();
   rec.setFill(Color.YELLOW);

   Text text = new Text();
   text.setFill(Color.RED);
   text.setText("TOTO");
   text.setTextOrigin(VPos.CENTER);
   text.setTextAlignment(TextAlignment.CENTER);
   NodeAnchor anchor = new NodeAnchor(text);
   // the Rectangle will be put on the bottom of the text
   anchor.anchor(rec, AnchorPosition.BOTTOM, AnchorPosition.TOP);

   Pane root = new Pane();
   rec.setX(200);
   rec.setY(100);
   rec.setWidth(100);
   rec.setHeight(100);
   text.setWrappingWidth(70);
   root.getChildren().add(rec);
   root.getChildren().add(text);