How to develop multi-touch applications in ubuntu 16.04 through javafx？ - javafx

Question

The javafx application：
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.RotateEvent;
import javafx.scene.input.ScrollEvent;
import javafx.scene.input.SwipeEvent;
import javafx.scene.input.TouchEvent;
import javafx.scene.input.ZoomEvent;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) {
Application.launch(args);
}
#Override
public void start(Stage primaryStage) {
Group root = new Group();
Scene scene = new Scene(root, 300, 250);
Rectangle rect = new Rectangle();
rect.setWidth(100);
rect.setHeight(100);
root.getChildren().add(rect);
rect.setOnScroll(new EventHandler<ScrollEvent>() {
#Override
public void handle(ScrollEvent event) {
if (!event.isInertia()) {
rect.setTranslateX(rect.getTranslateX() + event.getDeltaX());
rect.setTranslateY(rect.getTranslateY() + event.getDeltaY());
}
System.out.println("Rectangle: Scroll event" + ", inertia: "
+ event.isInertia() + ", direct: " + event.isDirect());
event.consume();
}
});
rect.setOnScrollStarted(new EventHandler<ScrollEvent>() {
#Override
public void handle(ScrollEvent event) {
System.out.println("Rectangle: Scroll started event");
event.consume();
}
});
rect.setOnScrollFinished(new EventHandler<ScrollEvent>() {
#Override
public void handle(ScrollEvent event) {
System.out.println("Rectangle: Scroll finished event");
event.consume();
}
});
rect.setOnZoom(new EventHandler<ZoomEvent>() {
#Override
public void handle(ZoomEvent event) {
rect.setScaleX(rect.getScaleX() * event.getZoomFactor());
rect.setScaleY(rect.getScaleY() * event.getZoomFactor());
System.out.println("Rectangle: Zoom event" + ", inertia: "
+ event.isInertia() + ", direct: " + event.isDirect());
event.consume();
}
});
rect.setOnZoomStarted(new EventHandler<ZoomEvent>() {
#Override
public void handle(ZoomEvent event) {
System.out.println("Rectangle: Zoom event started");
event.consume();
}
});
rect.setOnZoomFinished(new EventHandler<ZoomEvent>() {
#Override
public void handle(ZoomEvent event) {
System.out.println("Rectangle: Zoom event finished");
event.consume();
}
});
rect.setOnRotate(new EventHandler<RotateEvent>() {
#Override
public void handle(RotateEvent event) {
rect.setRotate(rect.getRotate() + event.getAngle());
System.out.println("Rectangle: Rotate event" + ", inertia: "
+ event.isInertia() + ", direct: " + event.isDirect());
event.consume();
}
});
rect.setOnRotationStarted(new EventHandler<RotateEvent>() {
#Override
public void handle(RotateEvent event) {
System.out.println("Rectangle: Rotate event started");
event.consume();
}
});
rect.setOnRotationFinished(new EventHandler<RotateEvent>() {
#Override
public void handle(RotateEvent event) {
System.out.println("Rectangle: Rotate event finished");
event.consume();
}
});
rect.setOnSwipeRight(new EventHandler<SwipeEvent>() {
#Override
public void handle(SwipeEvent event) {
System.out.println("Rectangle: Swipe right event");
event.consume();
}
});
rect.setOnSwipeLeft(new EventHandler<SwipeEvent>() {
#Override
public void handle(SwipeEvent event) {
System.out.println("Rectangle: Swipe left event");
event.consume();
}
});
rect.setOnTouchPressed(new EventHandler<TouchEvent>() {
#Override
public void handle(TouchEvent event) {
System.out.println("Rectangle: Touch pressed event");
event.consume();
}
});
rect.setOnTouchReleased(new EventHandler<TouchEvent>() {
#Override
public void handle(TouchEvent event) {
System.out.println("Rectangle: Touch released event");
event.consume();
}
});
rect.setOnMousePressed(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
if (event.isSynthesized()) {
System.out.println("Ellipse: Mouse pressed event from touch"
+ ", synthesized: " + event.isSynthesized());
}
event.consume();
}
});
rect.setOnMouseReleased(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
if (event.isSynthesized()) {
System.out.println("Ellipse: Mouse released event from touch"
+ ", synthesized: " + event.isSynthesized());
}
event.consume();
}
});
primaryStage.setScene(scene);
primaryStage.show();
}
}
I'm trying to implement an JavaFX application which are able to make
use of touch events and multi-touch gestures. I'm working with a
capacitive touch screen-eGalax Touch device, with a EETI eGTouch
driver (eGTouchD version: 2.5).It connected to a Ubuntu 16.04 LTS PC
via USB and created multi-touch events (ABS_MT_SLOT,
ABS_MT_TRACKING_ID, ABS_MT_POSITION_X, ABS_MT_POSITION_Y) which can
be read from /dev/input/eventX in the terminal. I have tried a lot
of methods(include MT4j) to realize it but none of them can
recognize the touch events.
But under Windows 7, the same code the touch events are recognized, I can swipe, pinch，zoom, etc.
Now,The zoom in and zoom out events also can realized through mouse scroll event in Ubuntu and Wondows 7.
By contrast, I am found that in Windows 7 the java 8 JDK supply a
jar called java-access-bridge.jar,but in Ubuntu`s JDK it not
included. Is this the key to the problem?
Since I just started to get acquainted with this stuff, I appreciate
any hint or help.