Drawing a border around a JavaFX Text node - javafx-2

Question

I want to draw red borders around arbitrary javafx.scene.text.Text nodes in my JavaFX scenegraph, for example those in a Button object.
It is easy to retrieve all the Text nodes but not to find where they are in the scene, they have an x and y property which doesn't seem to get set properly but they do not have a width and height.
So far I have tried to add rectangles with a red stroke to a stack pane but the x and y are always wrong and I can't get the size.

Answer 1

One solution is to wrap the text nodes in layout pane (such as an HBox) and use CSS on the layout pane:
import javafx.application.Application;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class TextBorderExample extends Application {
#Override
public void start(Stage primaryStage) {
final HBox root = new HBox(5);
root.getChildren().addAll(
new Text("This"), new Text("Is"), new Text("A"), createBorderedText("Red"), new Text("Bordered"), new Text("Text")
);
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
private Node createBorderedText(String text) {
final HBox hbox = new HBox();
hbox.getChildren().add(new Text(text));
hbox.setStyle("-fx-border-color: red;");
return hbox ;
}
public static void main(String[] args) {
launch(args);
}
}
Another way is to use a Rectangle, as follows:
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.geometry.Bounds;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class TextBorderExample extends Application {
#Override
public void start(Stage primaryStage) {
final HBox root = new HBox(5);
final Text red = new Text("Red");
final Rectangle redBorder = new Rectangle(0, 0, Color.TRANSPARENT);
redBorder.setStroke(Color.RED);
redBorder.setManaged(false);
red.boundsInParentProperty().addListener(new ChangeListener<Bounds>() {
#Override
public void changed(ObservableValue<? extends Bounds> observable,
Bounds oldValue, Bounds newValue) {
redBorder.setLayoutX(red.getBoundsInParent().getMinX());
redBorder.setLayoutY(red.getBoundsInParent().getMinY());
redBorder.setWidth(red.getBoundsInParent().getWidth());
redBorder.setHeight(red.getBoundsInParent().getHeight());
}
});
root.getChildren().addAll(new Text("This"), new Text("Is"), new Text("A"), red, new Text("Bordered"), new Text("Text"));
root.getChildren().add(redBorder);
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}