JavaFX Scene Builder custom tab

Question

I have created own custom control for JavaFX. It is working well when I have add it manually into FXML file. And it is "invisible" for Java Scene Builder when I tried to import it. So, I have next code (extremely simplified version): MyTab.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.*?>
<?import javafx.scene.layout.* ?>
<?import tafm.javafx.controls.MyTab?>


<fx:root type="javafx.scene.control.Tab" xmlns:fx="http://javafx.com/fxml">
</fx:root>

MyTab.java

package tafm.javafx.controls;

import javafx.fxml.FXMLLoader;
import javafx.scene.control.Tab;

import java.io.IOException;

public class MyTab extends Tab {

    public MyTab() {
        FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("MyTab.fxml"));
        fxmlLoader.setRoot(this);
        fxmlLoader.setController(this);
        fxmlLoader.setClassLoader(getClass().getClassLoader());
        try {
            fxmlLoader.load();            
        } catch (IOException exception) {
            throw new RuntimeException(exception);
        }
    }
}

I have build an jar file with this control and tried to import it into JavaFX Scene Builder 2.0. It is imported just with one error "Not a node: tafm.javafx.controls.MyTab.class" and there is no MyTab control available.

Then I change this class (together with fxml) as:

public class MyTab extends HBox

(just for testing purposes). It is successfully loaded into SB! So, as I understand, it is impossible to create an own "Tab". Is it true? Sure, I can manually edit the fxml files, but I would like to do it in SB. Does some workaround exists?

Eugene Ryzhikov Eugene Ryzhikov · Accepted Answer · 2016-04-17T15:47:24

The Tab in JavaFX is not inherited from the Node. It is also clear from the message you get.

All custom controls have to be part of the scene graph i.e. based on the Node. It is preferable that all custom controls inherit from Control, which will simplify and standardize their development.

JavaFX Scene Builder custom tab

1 Answers