Adds simple visualisation of 1-to-1 Connections

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/view/VisualisationPanel.java

@@ -4,10 +4,12 @@ import java.awt.Color;
 import java.awt.Graphics;
 import java.awt.event.ComponentEvent;
 import java.awt.event.ComponentListener;
+import java.util.Collection;
 
 import javax.swing.JPanel;
 
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.control.Controller;
+import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.Connection;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.Model;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.SmartDevice;
 
@@ -85,7 +87,9 @@ public class VisualisationPanel extends JPanel {
 		// paint white background
 		g.setColor(Color.white);
 		g.fillRect(0, 0, this.getWidth(), this.getHeight());
-
+		
+		paintConnections(g);
+		
 		paintDevices(g);
 	}
 
@@ -104,6 +108,8 @@ public class VisualisationPanel extends JPanel {
 				x = interactor.dragged_x;
 				y = interactor.dragged_y;
 			}
+			g.setColor(Color.WHITE);
+			g.fillOval(x - visualisationRadius, y - visualisationRadius, 2*visualisationRadius-1, 2*visualisationRadius-1);
 			g.setColor(Color.BLACK);
 			g.drawOval(x - visualisationRadius, y - visualisationRadius, 2*visualisationRadius-1, 2*visualisationRadius-1);
 			g.setColor(Color.BLUE);
@@ -112,6 +118,54 @@ public class VisualisationPanel extends JPanel {
 			g.drawString(s.getName(), x - g.getFontMetrics().stringWidth(s.getName()) / 2, y + visualisationRadius+11);
 		}
 	}
+	
+	/**
+	 * Paints the Connections
+	 * @param g
+	 */
+	private void paintConnections(Graphics g){
+		g.setColor(Color.RED);
+		//For all Connections
+		for (SmartDevice s : model.getDevices())
+			for(Connection c: s.getConnections()){
+				//Draw just once, if the device is the source
+				if(c.getSource() == s){
+					/**
+					 * All Devices that are part of the connection
+					 */
+					Collection<SmartDevice> d = c.getParticipants();
+					if(d.size() == 2){
+						
+						for(SmartDevice sd: d)
+							if(s!=sd){
+								//Check if dragged object
+								int s_x,s_y,sd_x,sd_y;
+								if(s == interactor.dragged){
+									s_x = interactor.dragged_x;
+									s_y = interactor.dragged_y;
+								}else{
+									s_x = s.getX();
+									s_y = s.getY();
+								}
+								if(sd == interactor.dragged){
+									sd_x = interactor.dragged_x;
+									sd_y = interactor.dragged_y;
+								}else{
+									sd_x = sd.getX();
+									sd_y = sd.getY();
+								}
+								g.drawLine(s_x, s_y, sd_x, sd_y);
+							}
+					}else if(d.size() == 1){
+						
+					} else if(d.size() <= 0){
+						//Invalid Connection
+					}else{
+						//Draw MultiConnection
+					}
+				}
+			}
+	}
 
 	/**
 	 * @return the visualisationRadius