com.jfoenix.transitions.CacheMomento Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package com.jfoenix.transitions;
import javafx.scene.CacheHint;
import javafx.scene.Node;
import javafx.scene.layout.Region;
import java.util.HashMap;
public class CacheMomento {
private static HashMap history = new HashMap<>();
private boolean cache;
private boolean cacheShape;
private boolean snapToPixel;
private CacheHint cacheHint = CacheHint.DEFAULT;
private Node node;
public CacheMomento(Node node) {
this.node = node;
}
/**
* this method will cache the node only if it wasn't cached before
*/
public void cache() {
if (!history.containsKey(node)) {
this.cache = node.isCache();
this.cacheHint = node.getCacheHint();
node.setCache(true);
node.setCacheHint(CacheHint.SPEED);
if (node instanceof Region) {
this.cacheShape = ((Region) node).isCacheShape();
this.snapToPixel = ((Region) node).isSnapToPixel();
((Region) node).setCacheShape(true);
((Region) node).setSnapToPixel(true);
}
history.put(node, this);
} else {
CacheMomento cached = new CacheMomento(node);
this.cache = cached.cache;
this.cacheHint = cached.cacheHint;
this.cacheShape = cached.cacheShape;
this.snapToPixel = cached.snapToPixel;
}
}
public void restore() {
node.setCache(cache);
node.setCacheHint(cacheHint);
if (node instanceof Region) {
((Region) node).setCacheShape(cacheShape);
((Region) node).setSnapToPixel(snapToPixel);
}
history.remove(node);
}
}