A Group node contains an ObservableList of children that
are rendered in order whenever this node is rendered.
A Group will take on the collective bounds of its children and is
not directly resizable.
Any transform, effect, or state applied to a Group will be applied
to all children of that group. Such transforms and effects will NOT be included
in this Group's layout bounds, however if transforms and effects are set
directly on children of this Group, those will be included in this Group's layout bounds.
By default, a Group will "auto-size" its managed resizable
children to their preferred sizes during the layout pass to ensure that Regions
and Controls are sized properly as their state changes. If an application
needs to disable this auto-sizing behavior, then it should set
autoSizeChildren to false and understand that if the preferred size of
the children change, they will not automatically resize (so buyer beware!).
Group Example:
import javafx.scene.*;
import javafx.scene.paint.*;
import javafx.scene.shape.*;
import java.lang.Math;
Group g = new Group();
for (int i = 0; i < 5; i++) {
Rectangle r = new Rectangle();
r.setY(i * 20);
r.setWidth(100);
r.setHeight(10);
r.setFill(Color.RED);
g.getChildren().add(r);
}
extends