--- /dev/null
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+package jalview.ext.treeviewer;
+
+import jalview.datamodel.SequenceI;
+import jalview.structure.SelectionListener;
+import jalview.structure.SelectionSource;
+
+import java.awt.event.ActionListener;
+import java.awt.event.MouseListener;
+
+/**
+ *
+ * Interface for binding a tree viewer to Jalview alignments. Assumes a tree
+ * viewer will both want to receive and send selection events. Note that this
+ * will take anything as a TreeNode object as no assumptions can be made about
+ * the inheritance structure of the TreeNode (besides being an Object).
+ *
+ * @author kjvanderheide
+ *
+ * @param <N>
+ * Tree node object.
+ */
+public interface ExternalTreeViewerBindingI<N>
+ extends ActionListener, MouseListener, SelectionListener,
+ SelectionSource
+{
+ /**
+ * If a node is selected in the tree panel this method highlights the
+ * corresponding sequence in the Jalview alignment view. If an internal node
+ * is selected all child sequences get highlighted as well.
+ */
+ public void showNodeSelectionOnAlign(N node);
+
+ public void treeSelectionChanged(SequenceI sequence);
+
+ public void showMatchingSequence(N nodeToMatch);
+
+ public void showMatchingChildSequences(N parentNode);
+
+}