simplified mote selection in visualizer skins

tools/cooja/java/se/sics/cooja/plugins/Visualizer.java

@@ -203,9 +203,10 @@ public class Visualizer extends VisPlugin {
     String[] skins = gui.getProjectConfig().getStringArrayValue(Visualizer.class, "SKINS");
     if (skins != null) {
       for (String skinClass: skins) {
-        logger.info("Registering external visualizer skin: " + skinClass);
         Class<? extends VisualizerSkin> skin = gui.tryLoadClass(this, VisualizerSkin.class, skinClass);
-        registerVisualizerSkin(skin);
+        if (registerVisualizerSkin(skin)) {
+        	logger.info("Registered external visualizer skin: " + skinClass);
+        }
       }
     }
     
@@ -412,6 +413,7 @@ public class Visualizer extends VisPlugin {
         }
 
         handleMouseMove(e, true);
+        repaint();
       }
     });
 
@@ -597,11 +599,12 @@ public class Visualizer extends VisPlugin {
     moteMenuActions.remove(menuAction);
   }
 
-  public static void registerVisualizerSkin(Class<? extends VisualizerSkin> skin) {
+  public static boolean registerVisualizerSkin(Class<? extends VisualizerSkin> skin) {
     if (visualizerSkins.contains(skin)) {
-      return;
+      return false;
     }
     visualizerSkins.add(skin);
+    return true;
   }
 
   public static void unregisterVisualizerSkin(Class<? extends VisualizerSkin> skin) {
@@ -1102,6 +1105,13 @@ public class Visualizer extends VisPlugin {
     logger.fatal("Drag and drop not implemented: " + file);
   }
 
+  /**
+   * @return Selected mote
+   */
+  public Mote getSelectedMote() {
+    return clickedMote;
+  }
+  
   public Collection<Element> getConfigXML() {
     ArrayList<Element> config = new ArrayList<Element>();
     Element element;

tools/cooja/java/se/sics/cooja/plugins/skins/DGRMVisualizerSkin.java

@@ -35,9 +35,6 @@ import java.awt.Color;
 import java.awt.FontMetrics;
 import java.awt.Graphics;
 import java.awt.Point;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
-import java.awt.event.MouseListener;
 
 import org.apache.log4j.Logger;
 
@@ -59,22 +56,6 @@ public class DGRMVisualizerSkin implements VisualizerSkin {
 	private Simulation simulation = null;
 	private Visualizer visualizer = null;
 
-	private Mote selectedMote = null;
-
-	private MouseListener selectMoteMouseListener = new MouseAdapter() {
-		public void mouseClicked(MouseEvent e) {
-			Mote[] motes = visualizer.findMotesAtPosition(e.getX(), e.getY());
-			if (motes == null || motes.length == 0) {
-				selectedMote = null;
-				visualizer.repaint();
-				return;
-			}
-
-			selectedMote = motes[0];
-			visualizer.repaint();
-		}
-	};
-
 	public void setActive(Simulation simulation, Visualizer vis) {
 		if (!(simulation.getRadioMedium() instanceof DirectedGraphMedium)) {
 			logger.fatal("Cannot activate DGRM skin for unknown radio medium: " + simulation.getRadioMedium());
@@ -82,9 +63,6 @@ public class DGRMVisualizerSkin implements VisualizerSkin {
 		}
 		this.simulation = simulation;
 		this.visualizer = vis;
-
-		/* Register mouse listener */
-		visualizer.getCurrentCanvas().addMouseListener(selectMoteMouseListener);
 	}
 
 	public void setInactive() {
@@ -92,19 +70,18 @@ public class DGRMVisualizerSkin implements VisualizerSkin {
 			/* Skin was never activated */
 			return;
 		}
-
-		/* Remove mouse listener */
-		visualizer.getCurrentCanvas().removeMouseListener(selectMoteMouseListener);
 	}
 
 	public Color[] getColorOf(Mote mote) {
-		if (mote == selectedMote) {
+	  Mote selectedMote = visualizer.getSelectedMote();
-			return new Color[] { Color.CYAN };
+	  if (mote == selectedMote) {
-		}
+	    return new Color[] { Color.CYAN };
-		return null;
+	  }
+	  return null;
 	}
 
 	public void paintBeforeMotes(Graphics g) {
+          Mote selectedMote = visualizer.getSelectedMote();
 		if (simulation == null 
 				|| selectedMote == null
 				|| selectedMote.getInterfaces().getRadio() == null) {

tools/cooja/java/se/sics/cooja/plugins/skins/UDGMVisualizerSkin.java

@@ -83,29 +83,8 @@ public class UDGMVisualizerSkin implements VisualizerSkin {
   private Visualizer visualizer = null;
   private UDGM radioMedium = null;
 
-  private Mote selectedMote = null;
-
   private Box top, ratioRX, ratioTX, rangeTX, rangeINT;
 
-  private MouseListener selectMoteMouseListener = new MouseAdapter() {
-    public void mousePressed(MouseEvent e) {
-      Mote[] motes = visualizer.findMotesAtPosition(e.getX(), e.getY());
-      if (motes == null || motes.length == 0) {
-        selectedMote = null;
-        rangeTX.setVisible(false);
-        rangeINT.setVisible(false);
-        ratioRX.setVisible(false);
-        ratioTX.setVisible(false);
-        top.setVisible(false);
-        visualizer.repaint();
-        return;
-      }
-
-      selectedMote = motes[0];
-      visualizer.repaint();
-    }
-  };
-
   public void setActive(Simulation simulation, Visualizer vis) {
     if (!(simulation.getRadioMedium() instanceof UDGM)) {
       logger.fatal("Cannot activate UDGM skin for unknown radio medium: " + simulation.getRadioMedium());
@@ -193,9 +172,6 @@ public class UDGMVisualizerSkin implements VisualizerSkin {
       }
     });
 
-    /* Register mouse listener */
-    visualizer.getCurrentCanvas().addMouseListener(selectMoteMouseListener);
-
     /* Register menu actions */
     visualizer.registerSimulationMenuAction(RangeMenuAction.class);
     visualizer.registerSimulationMenuAction(SuccessRatioMenuAction.class);
@@ -245,9 +221,6 @@ public class UDGMVisualizerSkin implements VisualizerSkin {
       return;
     }
 
-    /* Remove mouse listener */
-    visualizer.getCurrentCanvas().removeMouseListener(selectMoteMouseListener);
-
     /* Remove spinners etc */
     visualizer.getCurrentCanvas().remove(top);
 
@@ -257,6 +230,7 @@ public class UDGMVisualizerSkin implements VisualizerSkin {
   }
 
   public Color[] getColorOf(Mote mote) {
+    Mote selectedMote = visualizer.getSelectedMote();
     if (mote == selectedMote) {
       return new Color[] { Color.CYAN };
     }
@@ -264,6 +238,7 @@ public class UDGMVisualizerSkin implements VisualizerSkin {
   }
 
   public void paintBeforeMotes(Graphics g) {
+    Mote selectedMote = visualizer.getSelectedMote();
     if (simulation == null 
         || selectedMote == null
         || selectedMote.getInterfaces().getRadio() == null) {