Removed some resource-hungry map repainting

src/de/tud/kom/p2psim/impl/topology/movement/modularosm/mapvisualization/ShowMapQuestMapViz.java

@@ -24,6 +24,7 @@ import java.awt.AlphaComposite;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.Image;
+import java.awt.MediaTracker;
 import java.awt.RenderingHints;
 import java.awt.Toolkit;
 import java.awt.image.BufferedImage;
@@ -47,6 +48,8 @@ public class ShowMapQuestMapViz extends JComponent
 	private String mapType;
 
 	private String mapQuestKey;
+	
+	private BufferedImage background = null;
 
 	private boolean initialized = false;
 
@@ -96,6 +99,24 @@ public class ShowMapQuestMapViz extends JComponent
 				}
 			}
 			initialized = true;
+			
+			// Create a media tracker and add the image to it.  If we had several 
+	        // images to load, they could all be added to the same media tracker. 
+	        MediaTracker tracker = new MediaTracker(this); 
+	        Image image = Toolkit.getDefaultToolkit().getImage(tempImageFilePath);
+	        tracker.addImage(image, 0);
+
+	        // Start downloading the image and wait until it finishes loading. 
+	        try { 
+	            tracker.waitForAll(); 
+	        } catch(InterruptedException e) {
+	        	// help?
+	        }
+	        background = resize(
+					Toolkit.getDefaultToolkit().getImage(tempImageFilePath),
+					VisualizationInjector.getWorldX(),
+					VisualizationInjector.getWorldY());
+	        
 		}
 	}
 
@@ -109,11 +130,9 @@ public class ShowMapQuestMapViz extends JComponent
 				RenderingHints.VALUE_ANTIALIAS_ON);
 		g2.setComposite(
 				AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.6f));
-		Image imageToDraw = resize(
-				Toolkit.getDefaultToolkit().getImage(tempImageFilePath),
-				VisualizationInjector.getWorldX(),
-				VisualizationInjector.getWorldY());
-		g2.drawImage(imageToDraw, 0, 0, this);
+		if (background != null) {
+			g2.drawImage(background, 0, 0, this);
+		}
 	}
 
 	public void setTempImageFilePath(String tempImageFilePath) {
@@ -135,7 +154,7 @@ public class ShowMapQuestMapViz extends JComponent
 	 * @param width
 	 * @param height
 	 */
-	private Image resize(Image originalImage, int width, int height) {
+	private BufferedImage resize(Image originalImage, int width, int height) {
 		int type = BufferedImage.TYPE_INT_ARGB;
 		BufferedImage resizedImage = new BufferedImage(width, height, type);
 		Graphics2D g = resizedImage.createGraphics();

src/de/tud/kom/p2psim/impl/topology/views/VisualizationTopologyView.java

@@ -432,7 +432,7 @@ public class VisualizationTopologyView extends JFrame
 			Graphics2D g2 = (Graphics2D) g;
 			g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
 					RenderingHints.VALUE_ANTIALIAS_ON);
-			paintPlayingFieldBorder(g2);
+			//paintPlayingFieldBorder(g2);
 			paintNodes(g2);
 			super.paintComponent(g);
 		}