Add possibility to show/hide a marker after its creation without having to delete/recreate it.

src/main/org/insa/graphics/drawing/BasicDrawing.java

@@ -46,9 +46,13 @@ public class BasicDrawing extends JPanel implements Drawing {
         // Image of the marker
         protected BufferedImage image;
 
+        // Visible?
+        protected boolean visible;
+
         public BasicMarkerTracker(Point point, BufferedImage image) {
             this.point = point;
             this.image = image;
+            this.visible = true;
         }
 
         @Override
@@ -62,6 +66,12 @@ public class BasicDrawing extends JPanel implements Drawing {
             BasicDrawing.this.repaint();
         }
 
+        @Override
+        public void setVisible(boolean visible) {
+            this.visible = visible;
+            BasicDrawing.this.repaint();
+        }
+
         @Override
         public void delete() {
             BasicDrawing.this.markers.remove(this);
@@ -151,12 +161,14 @@ public class BasicDrawing extends JPanel implements Drawing {
 
         // Draw markers
         for (BasicMarkerTracker mtracker: markers) {
+            if (mtracker.visible) {
                 BufferedImage img = mtracker.image;
                 int px = this.projx(mtracker.getPoint().getLongitude());
                 int py = this.projy(mtracker.getPoint().getLatitude());
                 g.drawImage(img, px - img.getWidth() / 2, py - img.getHeight(), this);
             }
         }
+    }
 
     protected void setBB(double long1, double long2, double lat1, double lat2) {
 

src/main/org/insa/graphics/drawing/MapViewDrawing.java

@@ -69,6 +69,11 @@ public class MapViewDrawing extends MapView implements Drawing {
             MapViewDrawing.this.getLayerManager().getLayers().add(this.marker);
         }
 
+        @Override
+        public void setVisible(boolean visible) {
+            this.marker.setVisible(visible);
+        }
+
         @Override
         public void delete() {
             MapViewDrawing.this.getLayerManager().getLayers().remove(marker);

src/main/org/insa/graphics/drawing/MarkerTracker.java

@@ -14,6 +14,13 @@ public interface MarkerTracker {
      */
     public void moveTo(Point point);
 
+    /**
+     * Show or hide this marker - A marker should be visible when created.
+     * 
+     * @param visible true to show the marker, false to hide.
+     */
+    public void setVisible(boolean visible);
+
     /**
      * Delete this marker.
      */