-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.g2d.image.impl;\r
-\r
-import java.lang.ref.WeakReference;\r
-\r
-import org.simantics.g2d.image.Image;\r
-import org.simantics.utils.datastructures.cache.IProvider;\r
-import org.simantics.utils.datastructures.cache.ProvisionException;\r
-\r
-public class CacheProvider extends AbstractProviderProxy {\r
-\r
- WeakReference<Image> ref;\r
-\r
- public CacheProvider(IProvider<Image> source) {\r
- super(source);\r
- }\r
-\r
- @Override\r
- public synchronized Image get() throws ProvisionException {\r
- if (ref!=null) {\r
- Image x = ref.get();\r
- if (x==null) ref=null; else return x;\r
- }\r
- Image x = source.get();\r
- ref = new WeakReference<Image>(x);\r
- return x; \r
- }\r
-\r
- \r
- \r
-}\r
-\r
+/*******************************************************************************
+ * 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.lang.ref.WeakReference;
+
+import org.simantics.g2d.image.Image;
+import org.simantics.utils.datastructures.cache.IProvider;
+import org.simantics.utils.datastructures.cache.ProvisionException;
+
+public class CacheProvider extends AbstractProviderProxy {
+
+ WeakReference<Image> ref;
+
+ public CacheProvider(IProvider<Image> source) {
+ super(source);
+ }
+
+ @Override
+ public synchronized Image get() throws ProvisionException {
+ if (ref!=null) {
+ Image x = ref.get();
+ if (x==null) ref=null; else return x;
+ }
+ Image x = source.get();
+ ref = new WeakReference<Image>(x);
+ return x;
+ }
+
+
+
+}
+