下面列出了javafx.scene.shape.Circle#setOpacity ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private Circle createMovingCircle(Interpolator interpolator, Color color){
Circle circle = new Circle(25,25,35,color);
circle.setOpacity(0.0);
//add effect
circle.setEffect(new Lighting());
//create a timeline for moving the circle
timeline.setCycleCount(Timeline.INDEFINITE);
timeline.setAutoReverse(true);
//create a keyValue for horizontal translation of circle to the position 155px with given interpolator
KeyValue keyValue = new KeyValue(circle.translateXProperty(), 155, interpolator);
//create a keyFrame with duration 4s
KeyFrame keyFrame = new KeyFrame(Duration.seconds(4), keyValue);
//add the keyframe to the timeline
timeline.getKeyFrames().add(keyFrame);
return circle;
}
private Circle createMovingCircle(Interpolator interpolator, Color color){
Circle circle = new Circle(25,25,35,color);
circle.setOpacity(0.0);
//add effect
circle.setEffect(new Lighting());
//create a timeline for moving the circle
timeline.setCycleCount(Timeline.INDEFINITE);
timeline.setAutoReverse(true);
//create a keyValue for horizontal translation of circle to the position 155px with given interpolator
KeyValue keyValue = new KeyValue(circle.translateXProperty(), 155, interpolator);
//create a keyFrame with duration 4s
KeyFrame keyFrame = new KeyFrame(Duration.seconds(4), keyValue);
//add the keyframe to the timeline
timeline.getKeyFrames().add(keyFrame);
return circle;
}
private void init(Stage primaryStage) {
Group root = new Group();
primaryStage.setResizable(false);
primaryStage.setScene(new Scene(root, 250, 90));
//create circles by method createMovingCircle listed below
Circle circle1 = createMovingCircle(Interpolator.LINEAR); //default interpolator
circle1.setOpacity(0.7);
Circle circle2 = createMovingCircle(Interpolator.EASE_BOTH); //circle slows down when reached both ends of trajectory
circle2.setOpacity(0.45);
Circle circle3 = createMovingCircle(Interpolator.EASE_IN);
Circle circle4 = createMovingCircle(Interpolator.EASE_OUT);
Circle circle5 = createMovingCircle(Interpolator.SPLINE(0.5, 0.1, 0.1, 0.5)); //one can define own behaviour of interpolator by spline method
root.getChildren().addAll(
circle1,
circle2,
circle3,
circle4,
circle5
);
}
private Circle createMovingCircle(Interpolator interpolator) {
//create a transparent circle
Circle circle = new Circle(45,45, 40, Color.web("1c89f4"));
circle.setOpacity(0);
//add effect
circle.setEffect(new Lighting());
//create a timeline for moving the circle
timeline.setCycleCount(Timeline.INDEFINITE);
timeline.setAutoReverse(true);
//create a keyValue for horizontal translation of circle to the position 155px with given interpolator
KeyValue keyValue = new KeyValue(circle.translateXProperty(), 155, interpolator);
//create a keyFrame with duration 4s
KeyFrame keyFrame = new KeyFrame(Duration.seconds(4), keyValue);
//add the keyframe to the timeline
timeline.getKeyFrames().add(keyFrame);
return circle;
}
public RippleEffect(ReadOnlyDoubleProperty containerWidth,
ReadOnlyDoubleProperty containerHeight,
Supplier<Background> containerBackground) {
circleRipple = new Circle(0.1, rippleColor);
circleRipple.setOpacity(0.0);
// Optional box blur on ripple - smoother ripple effect
//circleRipple.setEffect(new BoxBlur(3, 3, 2));
// Fade effect bit longer to show edges on the end of animation
final FadeTransition fadeTransition = new FadeTransition(rippleDuration, circleRipple);
fadeTransition.setInterpolator(Interpolator.EASE_OUT);
fadeTransition.setFromValue(1.0);
fadeTransition.setToValue(0.0);
final Timeline scaleRippleTimeline = new Timeline();
final SequentialTransition parallelTransition = new SequentialTransition();
parallelTransition.getChildren().addAll(
scaleRippleTimeline,
fadeTransition
);
// When ripple transition is finished then reset circleRipple to starting point
parallelTransition.setOnFinished(event -> {
circleRipple.setOpacity(0.0);
circleRipple.setRadius(0.1);
});
this.handler = event -> {
parallelTransition.stop();
// Manually fire finish event
parallelTransition.getOnFinished().handle(null);
circleRipple.setCenterX(event.getX());
circleRipple.setCenterY(event.getY());
// Recalculate ripple size if size of button from last time was changed
if (containerWidth.get() != lastRippleWidth || containerHeight.get() != lastRippleHeight) {
lastRippleWidth = containerWidth.get();
lastRippleHeight = containerHeight.get();
rippleClip.setWidth(lastRippleWidth);
rippleClip.setHeight(lastRippleHeight);
try {
rippleClip.setArcHeight(containerBackground.get().getFills().get(0).getRadii().getTopLeftHorizontalRadius());
rippleClip.setArcWidth(containerBackground.get().getFills().get(0).getRadii().getTopLeftHorizontalRadius());
circleRipple.setClip(rippleClip);
} catch (Exception ignored) {
// try block because of possible null of Background, fills ...
}
// Getting 45% of longest button's length, because we want edge of ripple effect always visible
double circleRippleRadius = Math.max(containerHeight.get(), containerWidth.get()) * 0.45;
final KeyValue keyValue = new KeyValue(circleRipple.radiusProperty(), circleRippleRadius, Interpolator.EASE_OUT);
final KeyFrame keyFrame = new KeyFrame(rippleDuration, keyValue);
scaleRippleTimeline.getKeyFrames().clear();
scaleRippleTimeline.getKeyFrames().add(keyFrame);
}
parallelTransition.playFromStart();
};
}
private void createRippleEffect() {
circleRipple = new Circle(0.1, rippleColor);
circleRipple.setOpacity(0.0);
// Optional box blur on ripple - smoother ripple effect
// circleRipple.setEffect(new BoxBlur(3, 3, 2));
// Fade effect bit longer to show edges on the end
final FadeTransition fadeTransition = new FadeTransition(rippleDuration, circleRipple);
fadeTransition.setInterpolator(Interpolator.EASE_OUT);
fadeTransition.setFromValue(1.0);
fadeTransition.setToValue(0.0);
final Timeline scaleRippleTimeline = new Timeline();
final SequentialTransition parallelTransition = new SequentialTransition();
parallelTransition.getChildren().addAll(
scaleRippleTimeline,
fadeTransition
);
parallelTransition.setOnFinished(event1 -> {
circleRipple.setOpacity(0.0);
circleRipple.setRadius(0.1);
});
this.addEventHandler(MouseEvent.MOUSE_EXITED, event -> {
this.setCursor(Cursor.DEFAULT);
});
this.addEventHandler(MouseEvent.MOUSE_ENTERED, event -> {
this.setCursor(Cursor.HAND);
});
this.addEventHandler(MouseEvent.MOUSE_PRESSED, event -> {
parallelTransition.stop();
parallelTransition.getOnFinished().handle(null);
circleRipple.setCenterX(event.getX());
circleRipple.setCenterY(event.getY());
// Recalculate ripple size if size of button from last time was changed
if (getWidth() != lastRippleWidth || getHeight() != lastRippleHeight)
{
lastRippleWidth = getWidth();
lastRippleHeight = getHeight();
rippleClip.setWidth(lastRippleWidth);
rippleClip.setHeight(lastRippleHeight);
try {
rippleClip.setArcHeight(this.getBackground().getFills().get(0).getRadii().getTopLeftHorizontalRadius());
rippleClip.setArcWidth(this.getBackground().getFills().get(0).getRadii().getTopLeftHorizontalRadius());
circleRipple.setClip(rippleClip);
} catch (Exception e) {
}
// Getting 45% of longest button's length, because we want edge of ripple effect always visible
double circleRippleRadius = Math.max(getHeight(), getWidth()) * 0.45;
final KeyValue keyValue = new KeyValue(circleRipple.radiusProperty(), circleRippleRadius, Interpolator.EASE_OUT);
final KeyFrame keyFrame = new KeyFrame(rippleDuration, keyValue);
scaleRippleTimeline.getKeyFrames().clear();
scaleRippleTimeline.getKeyFrames().add(keyFrame);
}
parallelTransition.playFromStart();
});
}
private void createRippleEffect() {
circleRipple = new Circle(0.1, rippleColor);
circleRipple.setOpacity(0.0);
// Optional box blur on ripple - smoother ripple effect
// circleRipple.setEffect(new BoxBlur(3, 3, 2));
// Fade effect bit longer to show edges on the end
final FadeTransition fadeTransition = new FadeTransition(rippleDuration, circleRipple);
fadeTransition.setInterpolator(Interpolator.EASE_OUT);
fadeTransition.setFromValue(1.0);
fadeTransition.setToValue(0.0);
final Timeline scaleRippleTimeline = new Timeline();
final SequentialTransition parallelTransition = new SequentialTransition();
parallelTransition.getChildren().addAll(
scaleRippleTimeline,
fadeTransition
);
parallelTransition.setOnFinished(event1 -> {
circleRipple.setOpacity(0.0);
circleRipple.setRadius(0.1);
});
this.addEventHandler(MouseEvent.MOUSE_PRESSED, event -> {
parallelTransition.stop();
parallelTransition.getOnFinished().handle(null);
circleRipple.setCenterX(event.getX());
circleRipple.setCenterY(event.getY());
// Recalculate ripple size if size of button from last time was changed
if (getWidth() != lastRippleWidth || getHeight() != lastRippleHeight)
{
lastRippleWidth = getWidth();
lastRippleHeight = getHeight();
rippleClip.setWidth(lastRippleWidth);
rippleClip.setHeight(lastRippleHeight);
try {
rippleClip.setArcHeight(this.getBackground().getFills().get(0).getRadii().getTopLeftHorizontalRadius());
rippleClip.setArcWidth(this.getBackground().getFills().get(0).getRadii().getTopLeftHorizontalRadius());
circleRipple.setClip(rippleClip);
} catch (Exception e) {
}
// Getting 45% of longest button's length, because we want edge of ripple effect always visible
double circleRippleRadius = Math.max(getHeight(), getWidth()) * 0.45;
final KeyValue keyValue = new KeyValue(circleRipple.radiusProperty(), circleRippleRadius, Interpolator.EASE_OUT);
final KeyFrame keyFrame = new KeyFrame(rippleDuration, keyValue);
scaleRippleTimeline.getKeyFrames().clear();
scaleRippleTimeline.getKeyFrames().add(keyFrame);
}
parallelTransition.playFromStart();
});
}