+import jalview.datamodel.PDBEntry;
+import jalview.datamodel.SequenceI;
+import jalview.gui.AlignmentPanel;
+import jalview.gui.FeatureRenderer;
+import jalview.gui.SequenceRenderer;
+import jalview.io.DataSourceType;
+import jalview.io.StructureFile;
+import jalview.renderer.seqfeatures.FeatureColourFinder;
+import jalview.structure.AtomSpec;
+import jalview.structure.StructureListener;
+import jalview.structure.StructureMapping;
+import jalview.structure.StructureSelectionManager;
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Event;
+import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+// JBPNote TODO: This class is quite noisy - needs proper log.info/log.debug
+import java.awt.Image;
+import java.awt.RenderingHints;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
+import java.io.PrintStream;
+import java.util.List;
+import java.util.Vector;
+
+import javax.swing.JPanel;
+import javax.swing.ToolTipManager;
+
+public class PDBCanvas extends JPanel implements MouseListener,
+ MouseMotionListener, StructureListener
+{
+ boolean redrawneeded = true;