void animateRoute(List<Path> path, Circle entranceMarker, GraphicsContext gc) {
double entranceX = entranceMarker.getCenterX();
double entranceY = entranceMarker.getCenterY();
int currentKeyFrameTimeInMs = 0, keyframeTimeInMs = 50;
List<KeyFrame> keyFrames = new ArrayList<>();
List<AnimationTimer> timers = new ArrayList<>();
for (int i = 0; i < path.size(); i++) {
Path pathEntry = path.get(i);
DoubleProperty opacity = new SimpleDoubleProperty();
keyFrames.add(
new KeyFrame(Duration.millis(currentKeyFrameTimeInMs), new KeyValue(opacity, 0)));
keyFrames.add(
new KeyFrame(
Duration.millis(currentKeyFrameTimeInMs + keyframeTimeInMs),
new KeyValue(opacity, 0.3)));
timeline.setAutoReverse(true);
timeline.setCycleCount(1);
currentKeyFrameTimeInMs += keyframeTimeInMs;
timers.add(
new AnimationTimer() {
@Override
public void handle(long now) {
gc.setFill(Color.FORESTGREEN.deriveColor(0, 1, 1, opacity.get()));
if (maze.representation().length > 24) {
gc.fillRect(
entranceX + calculateNextPosX(pathEntry.x, 2) - 20,
entranceY + calculateNextPosY(pathEntry.y, 2) - 176,
CELL_LENGTH,
CELL_LENGTH);
} else {
gc.fillRect(
entranceX + calculateNextPosX(pathEntry.x, 5) - 23,
entranceY + calculateNextPosY(pathEntry.y, 5) - 178,
CELL_LENGTH,
CELL_LENGTH);
}
}
});
}
timeline.getKeyFrames().addAll(keyFrames);
for (int i = 0; i < path.size(); i++) {
timers.get(i).start();
}
timeline.play();
}
public void relocateText(Text text, double centerX, double centerY) {
double textWidth = text.getBoundsInLocal().getWidth();
double textHeight = text.getBoundsInLocal().getHeight();
text.relocate(circle.getCenterX() - textWidth / 2, circle.getCenterY() - textHeight / 2);
}
private Node edge(Circle n, Circle m) {
Line line = new Line(n.getCenterX(), n.getCenterY(), m.getCenterX(), m.getCenterY());
line.setStroke(Color.BLACK);
return line;
}
// drawing
public void drawGraph() {
Timeline timeline = new Timeline();
if (graph != null && finalCoordinates != null) {
// reset pane
drawing.getChildren().clear();
SpringEmbedder.centerCoordinates(finalCoordinates, 20, 380, 20, 380);
SpringEmbedder.centerCoordinates(startingCoordinates, 20, 380, 20, 380);
// draw nucleotides
circles = new Circle[finalCoordinates.length];
for (int i = 0; i < finalCoordinates.length; i++) {
// create nodes
Circle circle = new Circle(5);
circle.setCenterX(finalCoordinates[i][0]);
circle.setCenterY(finalCoordinates[i][1]);
switch (graph.getSequence().charAt(i)) {
case 'A':
circle.setFill(Color.YELLOW);
break;
case 'a':
circle.setFill(Color.YELLOW);
break;
case 'U':
circle.setFill(Color.GREEN);
break;
case 'u':
circle.setFill(Color.GREEN);
break;
case 'C':
circle.setFill(Color.BLUE);
break;
case 'c':
circle.setFill(Color.BLUE);
break;
case 'G':
circle.setFill(Color.RED);
break;
case 'g':
circle.setFill(Color.RED);
break;
}
circle.setStroke(Color.BLACK);
// add tooltip
Tooltip t =
new Tooltip("Nucleotide: " + graph.getSequence().charAt(i) + "\nPosition: " + i);
Tooltip.install(circle, t);
// add drag-and-drop behaviour
circle.setOnMousePressed(
event -> {
if (isAnimationActivated) {
dragStartX = circle.getCenterX();
dragStartY = circle.getCenterY();
}
});
circle.setOnMouseDragged(
event -> {
if (isAnimationActivated) {
circle.setCenterX(event.getX());
circle.setCenterY(event.getY());
}
});
circle.setOnMouseReleased(
event -> {
if (isAnimationActivated) {
Timeline dragTimeline = new Timeline();
KeyValue circlePositionXKey = new KeyValue(circle.centerXProperty(), dragStartX);
KeyValue circlePositionYKey = new KeyValue(circle.centerYProperty(), dragStartY);
dragTimeline
.getKeyFrames()
.add(new KeyFrame(Duration.millis(animationTime), circlePositionXKey));
dragTimeline
.getKeyFrames()
.add(new KeyFrame(Duration.millis(animationTime), circlePositionYKey));
dragTimeline.play();
}
});
// save circle locally
circles[i] = circle;
// animate circles
KeyValue startingXKey = new KeyValue(circle.centerXProperty(), startingCoordinates[i][0]);
KeyValue finalXKey = new KeyValue(circle.centerXProperty(), circle.getCenterX());
KeyValue startingYKey = new KeyValue(circle.centerYProperty(), startingCoordinates[i][1]);
KeyValue finalYKey = new KeyValue(circle.centerYProperty(), circle.getCenterY());
timeline.getKeyFrames().add(new KeyFrame(Duration.millis(0), startingXKey));
timeline.getKeyFrames().add(new KeyFrame(Duration.millis(0), startingYKey));
timeline.getKeyFrames().add(new KeyFrame(Duration.millis(animationTime), finalXKey));
timeline.getKeyFrames().add(new KeyFrame(Duration.millis(animationTime), finalYKey));
}
// create edges
int[][] edges = graph.getEdges();
for (int i = 0; i < edges.length; i++) {
// bind edges to nodes
Line line =
new Line(
finalCoordinates[edges[i][0]][0],
finalCoordinates[edges[i][0]][1],
finalCoordinates[edges[i][1]][0],
finalCoordinates[edges[i][1]][1]);
line.startYProperty().bind(circles[edges[i][0]].centerYProperty());
line.startXProperty().bind(circles[edges[i][0]].centerXProperty());
line.endYProperty().bind(circles[edges[i][1]].centerYProperty());
line.endXProperty().bind(circles[edges[i][1]].centerXProperty());
// draw edges
if (edges[i][1] - edges[i][0] != 1) {
line.setStroke(Color.CADETBLUE);
} else {
line.setFill(Color.DARKGRAY);
}
drawing.getChildren().add(line);
}
// draw all circles in order to overlap the edges
drawing.getChildren().addAll(circles);
if (isAnimationActivated) {
timeline.play();
}
} else {
throw new IllegalArgumentException(
"graph is null: "
+ graph.equals(null)
+ "\ncoordinates is null: "
+ finalCoordinates.equals(null));
}
}