5 タッチ対応デバイスからのイベントの使用

例5-2 スクロール・イベントのハンドラの定義

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());
            }
            log("Rectangle: Scroll event" +
                ", inertia: " + event.isInertia() + 
                ", direct: " + event.isDirect());
            event.consume();
        }
});

rect.setOnScrollStarted(new EventHandler<ScrollEvent>() {
        @Override public void handle(ScrollEvent event) {
            inc(rect);
            log("Rectangle: Scroll started event");
            event.consume();
        }
});
 
rect.setOnScrollFinished(new EventHandler<ScrollEvent>() {
        @Override public void handle(ScrollEvent event) {
            dec(rect);
            log("Rectangle: Scroll finished event");
            event.consume();
        }
});

例5-3 ズーム・イベントのハンドラの定義

rect.setOnZoom(new EventHandler<ZoomEvent>() {
        @Override public void handle(ZoomEvent event) {
            rect.setScaleX(rect.getScaleX() * event.getZoomFactor());
            rect.setScaleY(rect.getScaleY() * event.getZoomFactor());
            log("Rectangle: Zoom event" +
                ", inertia: " + event.isInertia() + 
                ", direct: " + event.isDirect());
 
            event.consume();
        }
});

rect.setOnZoomStarted(new EventHandler<ZoomEvent>() {
        @Override public void handle(ZoomEvent event) {
            inc(rect);
            log("Rectangle: Zoom event started");
            event.consume();
        }
});

rect.setOnZoomFinished(new EventHandler<ZoomEvent>() {
        @Override public void handle(ZoomEvent event) {
            dec(rect);
            log("Rectangle: Zoom event finished");
            event.consume();
        }
});
 

例5-4 回転イベントのハンドラの定義

rect.setOnRotate(new EventHandler<RotateEvent>() {
        @Override public void handle(RotateEvent event) {
            rect.setRotate(rect.getRotate() + event.getAngle());
            log("Rectangle: Rotate event" +
                ", inertia: " + event.isInertia() + 
                ", direct: " + event.isDirect());
            event.consume();
        }
});

rect.setOnRotationStarted(new EventHandler<RotateEvent>() {
        @Override public void handle(RotateEvent event) {
            inc(rect);
            log("Rectangle: Rotate event started");
            event.consume();
        }
});

rect.setOnRotationFinished(new EventHandler<RotateEvent>() {
        @Override public void handle(RotateEvent event) {
            dec(rect);
            log("Rectangle: Rotate event finished");
            event.consume();
        }
});

例5-5 スワイプ・イベントのハンドラの定義

rect.setOnSwipeRight(new EventHandler<SwipeEvent>() {
        @Override public void handle(SwipeEvent event) {
            log("Rectangle: Swipe right event");
            event.consume();
        }
});     
 
rect.setOnSwipeLeft(new EventHandler<SwipeEvent>() {
        @Override public void handle(SwipeEvent event) {
            log("Rectangle: Swipe left event");
            event.consume();
        }
});

例5-6 タッチ・イベントのハンドラの定義

rect.setOnTouchPressed(new EventHandler<TouchEvent>() {
        @Override public void handle(TouchEvent event) {
            log("Rectangle: Touch pressed event");
            event.consume();
        }
});

rect.setOnTouchReleased(new EventHandler<TouchEvent>() {
        @Override public void handle(TouchEvent event) {
            log("Rectangle: Touch released event");
            event.consume();
        }
});
 

例5-7 マウス・イベントのハンドラの定義

oval.setOnMousePressed(new EventHandler<MouseEvent>() {
        @Override public void handle(MouseEvent event) {
            if (event.isSynthesized()) {
                log("Ellipse: Mouse pressed event from touch" +
                    ", synthesized: " + event.isSynthesized());
            }
            event.consume();
        }
});     
 
oval.setOnMouseReleased(new EventHandler<MouseEvent>() {
        @Override public void handle(MouseEvent event) {
            if (event.isSynthesized()) {
                log("Ellipse: Mouse released event from touch" +
                    ", synthesized: " + event.isSynthesized());
            }
            event.consume();
        }
});