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/*******************************************************************************
* Copyright (c) 2016 BestSolution.at and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tom Schindl<tom.schindl@bestsolution.at> - initial API and implementation
*******************************************************************************/
package org.eclipse.fx.ui.panes;
import java.util.function.Predicate;
import javafx.beans.value.WritableValue;
import javafx.scene.layout.StackPane;
/**
* A {@link StackPane} who is able break the recursive CSS & Layout-Pass call
* chain
*/
public class LazyStackPane extends StackPane {
/**
* The check type
*/
public enum CheckType {
/**
* Should a layout pass be forwarded
*/
LAYOUT,
/**
* Should a css pass be forwarded
*/
CSS
}
private Predicate<CheckType> checkSupplier;
/**
* Create a pane who can optimize CSS & Layout-Passes
*
* @param checkSupplier
* the supplier
*/
public LazyStackPane(Predicate<CheckType> checkSupplier) {
this.checkSupplier = checkSupplier;
}
@SuppressWarnings("deprecation")
@Override
protected void impl_processCSS(WritableValue<Boolean> unused) {
if (this.checkSupplier.test(CheckType.CSS)) {
super.impl_processCSS(unused);
}
}
@Override
protected void layoutChildren() {
if (this.checkSupplier.test(CheckType.LAYOUT)) {
super.layoutChildren();
}
}
}
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