Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / diagram / handler / impl / TransactionContextImpl.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/diagram/handler/impl/TransactionContextImpl.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/diagram/handler/impl/TransactionContextImpl.java
new file mode 100644 (file)
index 0000000..08cb42b
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/diagram/handler/impl/TransactionContextImpl.java
@@ -0,0 +1,110 @@
+/*******************************************************************************\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.diagram.handler.impl;\r
+\r
+import java.util.Collection;\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+\r
+import org.simantics.g2d.diagram.IDiagram;\r
+import org.simantics.g2d.diagram.handler.LifeCycle;\r
+import org.simantics.g2d.diagram.handler.TransactionContext;\r
+import org.simantics.g2d.element.IElement;\r
+import org.simantics.utils.datastructures.ListenerList;\r
+\r
+/**\r
+ * @author Toni Kalajainen\r
+ */\r
+public class TransactionContextImpl implements TransactionContext, LifeCycle {\r
+\r
+    Map<IDiagram, ListenerList<TransactionListener>> list =\r
+        new HashMap<IDiagram, ListenerList<TransactionListener>>();\r
+\r
+    @Override\r
+    public void addTransactionListener(IDiagram d, TransactionListener l) {\r
+        ListenerList<TransactionListener> ll = list.get(d);\r
+        if (ll==null) {\r
+            ll = new ListenerList<TransactionListener>(TransactionListener.class);\r
+            list.put(d, ll);\r
+        }\r
+        ll.add(l);\r
+    }\r
+\r
+    @Override\r
+    public void removeTransactionListener(IDiagram d, TransactionListener l) {\r
+        ListenerList<TransactionListener> ll = list.get(d);\r
+        if (ll==null) return;\r
+        ll.remove(l);\r
+    }\r
+\r
+    @Override\r
+    public void onDiagramDestroyed(IDiagram diagram) {\r
+    }\r
+\r
+    @Override\r
+    public void onDiagramDisposed(IDiagram diagram) {\r
+        list.remove(diagram);\r
+    }\r
+\r
+    @Override\r
+    public void onDiagramCreated(IDiagram diagram) {\r
+    }\r
+\r
+//     @Override\r
+//     public void finishTransaction(IDiagram d, Transaction t, ChangeSet cs) {\r
+//             ListenerList<TransactionListener> ll = list.get(d);\r
+//             if (ll==null) return;\r
+//             for (TransactionListener l : ll.getListeners())\r
+//                     l.transactionFinished(d, t, cs);\r
+//     }\r
+\r
+//     @Override\r
+//     public void startTransaction(IDiagram d, Transaction t) {\r
+//             ListenerList<TransactionListener> ll = list.get(d);\r
+//             if (ll==null) return;\r
+//             for (TransactionListener l : ll.getListeners())\r
+//                     l.transactionStarted(d, t);\r
+//     }\r
+\r
+    @Override\r
+    public void onDiagramLoaded(IDiagram diagram, Collection<IElement> initialElements) {\r
+    }\r
+\r
+    @Override\r
+    public Transaction startTransaction(IDiagram d, TransactionType type) {\r
+        Transaction t = new Transaction.Impl(type);\r
+        ListenerList<TransactionListener> ll = list.get(d);\r
+        if (ll != null)\r
+            for (TransactionListener l : ll.getListeners())\r
+                l.transactionStarted(d, t);\r
+        return t;\r
+    }\r
+\r
+    @Override\r
+    public void finishTransaction(IDiagram d, Transaction t) {\r
+        ListenerList<TransactionListener> ll = list.get(d);\r
+        if (ll == null)\r
+            return;\r
+        for (TransactionListener l : ll.getListeners())\r
+            l.transactionFinished(d, t);\r
+    }\r
+\r
+//    @Override\r
+//    public void cancelTransaction(IDiagram d, Transaction t) {\r
+//        ListenerList<TransactionListener> ll = list.get(d);\r
+//        if (ll == null)\r
+//            return;\r
+//        for (TransactionListener l : ll.getListeners())\r
+//            l.transactionCanceled(d, t);\r
+//    }\r
+\r
+}\r