com.jfoenix.cache.CachePolicy Maven / Gradle / Ivy
package com.jfoenix.cache;
import com.jfoenix.transitions.CacheMemento;
import javafx.scene.CacheHint;
import javafx.scene.Node;
import javafx.scene.SnapshotParameters;
import javafx.scene.image.ImageView;
import javafx.scene.image.WritableImage;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import java.util.ArrayList;
import java.util.WeakHashMap;
public interface CachePolicy {
void cache(T node);
void restore(T node);
CachePolicy CACHE = new CachePolicy() {
private WeakHashMap cache = new WeakHashMap<>();
@Override
public void cache(Node node) {
if (!cache.containsKey(node)) {
final CacheMemento cacheMemento = new CacheMemento(node);
cache.put(node, cacheMemento);
cacheMemento.cache();
}
}
@Override
public void restore(Node node) {
CacheMemento cacheMemento = cache.remove(node);
if (cacheMemento != null) {
cacheMemento.restore();
}
}
};
CachePolicy NONE = new CachePolicy() {
@Override
public void cache(Node node) {
// do nothing
}
@Override
public void restore(Node node) {
// do nothing
}
};
CachePolicy IMAGE = new CachePolicy() {
private WeakHashMap> cache = new WeakHashMap<>();
@Override
public void cache(Pane node) {
if (!cache.containsKey(node)) {
SnapshotParameters snapShotparams = new SnapshotParameters();
snapShotparams.setFill(Color.TRANSPARENT);
WritableImage temp = node.snapshot(snapShotparams,
new WritableImage((int) node.getLayoutBounds().getWidth(),
(int) node.getLayoutBounds().getHeight()));
ImageView tempImage = new ImageView(temp);
tempImage.setCache(true);
tempImage.setCacheHint(CacheHint.SPEED);
cache.put(node, new ArrayList<>(node.getChildren()));
node.getChildren().setAll(tempImage);
}
}
@Override
public void restore(Pane node) {
ArrayList children = cache.remove(node);
if (children != null) {
node.getChildren().setAll(children);
}
}
};
}