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Num pad Enter key returns UNDEFINED [message #1794793]

Thu, 06 September 2018 14:52

Patrick Muscat

Messages: 14
Registered: May 2018

Junior Member

Hello,

I'm not sure this is the right place for this problem...

Using JavaFX inside SWT, the keycode of the enter key from the numpad is UNDEFINED.

Here is a very simple example:

package enterkey;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

import javafx.embed.swt.FXCanvas;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyEvent;

public class TestJavaFXInsideSWT {

	public static void main(String[] args) {
		Display display = new Display();
		Shell shell = new Shell(display);
		shell.setLayout(new FillLayout());

		final FXCanvas fxCanvas = new FXCanvas(shell, SWT.FILL);
		TextField textField = new TextField("Texte");
		textField.addEventHandler(KeyEvent.KEY_PRESSED, new EventHandler<Event>() {
			@Override
			public void handle(Event event) {
				if (event instanceof KeyEvent)
					System.out.println(((KeyEvent) event).getCode());
			}
		});
		Group group = new Group(textField);
		Scene scene = new Scene(group, 160, 80);
		fxCanvas.setScene(scene);

		shell.layout();
		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}
		display.dispose();
	}
}

With pure Javafx everything is fine

package enterkey;

import javafx.application.Application;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyEvent;
import javafx.stage.Stage;

public class TestJavaFX extends Application {

	public static void main(String[] args) {
		launch(args);
	}

	@Override
	public void start(Stage primaryStage) {
		primaryStage.setTitle("Test EnterKey");

		TextField textField = new TextField("Texte");
		textField.addEventHandler(KeyEvent.KEY_PRESSED, new EventHandler<Event>() {
			@Override
			public void handle(Event event) {
				if (event instanceof KeyEvent)
				System.out.println(((KeyEvent) event).getCode());
			}
		});
		
		Group group = new Group(textField);

		Scene scene = new Scene(group, 160, 80);
		primaryStage.setScene(scene);
		primaryStage.show();
	}
}

With pure SWT, the keycode is different

package enterkey;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class TestSWT {
	public static void main(String[] args) {
		Display display = new Display();
		Shell shell = new Shell(display);
		shell.setLayout(new FillLayout());

		Text text = new Text(shell, SWT.NONE);
		text.setText("Texte");
		text.addKeyListener(new KeyListener() {
			@Override
			public void keyReleased(KeyEvent e) {
				// ignorer
			}
			@Override
			public void keyPressed(KeyEvent e) {
				System.out.println(e.keyCode);
			}
		});

		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}
		display.dispose();
	}
}

Any idea or somewhere else to ask?

[Edit] versions:
- jfxswt from jre1.8.0_181
- org.eclipe.swt 3.106.2 (v20171129-0543)
- org.eclipse.swt.win32.win32.x86_64 3.106.2 (.v20171129-0543)

[Updated on: Thu, 06 September 2018 14:59]

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