Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / image / impl / AbstractImage.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AbstractImage.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AbstractImage.java
new file mode 100644 (file)
index 0000000..1929901
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/image/impl/AbstractImage.java
@@ -0,0 +1,50 @@
+/*******************************************************************************\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 org.simantics.g2d.image.Image;\r
+import org.simantics.utils.datastructures.ListenerList;\r
+\r
+/**\r
+ * \r
+ *\r
+ * @author Toni Kalajainen <toni.kalajainen@vtt.fi>\r
+ */\r
+public abstract class AbstractImage implements Image {\r
+\r
+    ListenerList<ImageListener> list = null;\r
+\r
+    @Override\r
+    public void addImageListener(ImageListener listener) {\r
+        getListenerList().add(listener);\r
+    }\r
+\r
+    @Override\r
+    public void removeImageListener(ImageListener listener) {\r
+        getListenerList().remove(listener);\r
+    }\r
+\r
+    protected void notifyChanged()\r
+    {\r
+        if (list == null)\r
+            return;\r
+        for (ImageListener l : list.getListeners())\r
+            l.onContentChangedNotification(this);\r
+    }\r
+\r
+    private synchronized ListenerList<ImageListener> getListenerList()\r
+    {\r
+        if (list==null) list = new ListenerList<ImageListener>(ImageListener.class);\r
+        return list;\r
+    }\r
+}\r
+\r