X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fimage%2Fimpl%2FAsyncImage.java;fp=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fimage%2Fimpl%2FAsyncImage.java;h=01f7abad66c8665d5ad39791803adbb9d92cc53c;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AsyncImage.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AsyncImage.java new file mode 100644 index 000000000..01f7abad6 --- /dev/null +++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AsyncImage.java @@ -0,0 +1,67 @@ +/******************************************************************************* + * Copyright (c) 2007, 2010 Association for Decentralized Information Management + * in Industry THTH ry. + * 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: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.g2d.image.impl; + +import java.util.EnumSet; +import java.util.concurrent.Executor; +import java.util.concurrent.LinkedBlockingQueue; +import java.util.concurrent.ThreadFactory; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; + +import org.simantics.g2d.image.DefaultImages; +import org.simantics.g2d.image.Image; +import org.simantics.utils.datastructures.cache.IProvider; + +/** + * AsyncImage acquires Image from IProvider asynchronously. + * Wait symbol is shown while symbol is acquired. + * + * @author Toni Kalajainen + */ +public class AsyncImage extends ImageProxy { + + static EnumSet caps = EnumSet.of(Feature.Volatile, Feature.Vector); + + private static ThreadFactory tf = new ThreadFactory() { + @Override + public Thread newThread(Runnable r) { + Thread t = new Thread(new ThreadGroup("Renderer"), r); + t.setDaemon(false); + return t; + } + }; + private static Executor EXECUTOR = + new ThreadPoolExecutor( + 0, + 1, + 3L, TimeUnit.SECONDS, + new LinkedBlockingQueue(), + tf); + + public AsyncImage(final IProvider imgProvider) { + super(DefaultImages.UNKNOWN.get()); + EXECUTOR.execute(new Runnable() { + @Override + public void run() { + setSource(DefaultImages.GRAB.get()); + setSource(imgProvider.get()); + }}); + } + + @Override + public EnumSet getFeatures() { + return EnumSet.of(Feature.Volatile); + } + +} +