Adds animated color properties to the given node that can be accessed from JavaFX CSS. - Java JavaFX

Java examples for JavaFX:Animation

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Description

Adds animated color properties to the given node that can be accessed from JavaFX CSS.

Demo Code


import javafx.animation.Animation;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.scene.Node;
import javafx.scene.paint.Color;
import javafx.util.Duration;

public class Main{
    private static final String TIMELINE_KEY = "color-animation-utils-timeline";
    private static final String COLOR_FORMAT = "#%02x%02x%02x";
    /**// w ww .  jav a  2  s .  c  o  m
         * Adds animated color properties to the given node that can be accessed from CSS.
         * 
         * @param node the node to be styled with animated colors
         * @param data a {@link AnimatedColor} object storing the animation parameters
         */
        public static void animateColor(final Node node, final AnimatedColor data) {

    removeAnimation(node);

    final ObjectProperty<Color> baseColor = new SimpleObjectProperty<>();

    final KeyValue firstkeyValue = new KeyValue(baseColor, data.getFirstColor());
    final KeyValue secondKeyValue = new KeyValue(baseColor, data.getSecondColor());
    final KeyFrame firstKeyFrame = new KeyFrame(Duration.ZERO, firstkeyValue);
    final KeyFrame secondKeyFrame = new KeyFrame(data.getInterval(), secondKeyValue);
    final Timeline timeline = new Timeline(firstKeyFrame, secondKeyFrame);

    baseColor.addListener((v, o, n) -> {

        final int redValue = (int) (n.getRed() * 255);
        final int greenValue = (int) (n.getGreen() * 255);
        final int blueValue = (int) (n.getBlue() * 255);

        final String format = data.getProperty() + ": " + COLOR_FORMAT + ";";
        node.setStyle(String.format(format, redValue, greenValue, blueValue));
    });

    node.getProperties().put(TIMELINE_KEY, timeline);

    timeline.setAutoReverse(true);
    timeline.setCycleCount(Animation.INDEFINITE);
    timeline.play();
}
    /**
         * Removes an animated color from this node, if one has been set on it.
         */
        public static void removeAnimation(final Node node) {

            // Stopping the timeline should allow object properties that depend on it to be garbage collected.
            if (node.getProperties().get(TIMELINE_KEY) instanceof Timeline) {
                final Timeline timeline = (Timeline) node.getProperties().get(
                        TIMELINE_KEY);
                timeline.stop();
            }
        }
}

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