Better button handling and other improvements

Added the new air pressure class and improved the order in which the
values appear. Also massively improved button handling, now it will
respond instantly to a button press

Weerstation.java

@@ -26,14 +26,15 @@ public class Weerstation {
         //All the different screen classes
     
         final List<Grootheid> lstScreens = new ArrayList<Grootheid>();
+        lstScreens.add(new OutsideTemp(meting1, meting2));
+        lstScreens.add(new WindChill(meting1, meting2));
+        lstScreens.add(new OutsideHum(meting1, meting2));
+        lstScreens.add(new Barometer(meting1, meting2));
         lstScreens.add(new AvgWindSpeed(meting1, meting2));
         lstScreens.add(new RainRate(meting1, meting2));
-        lstScreens.add(new OutsideTemp(meting1, meting2));
         lstScreens.add(new InsideTemp(meting1, meting2));
-        lstScreens.add(new OutsideHum(meting1, meting2));
         lstScreens.add(new InsideHum(meting1, meting2));
         lstScreens.add(new CloudHeight(meting1, meting2));
-        lstScreens.add(new WindChill(meting1, meting2));
         lstScreens.add(new UVLevel(meting1, meting2));
         
         
@@ -87,13 +88,38 @@ public class Weerstation {
             public void run() {
                 if(IO.readShort(0x100) == 1){
                     if(IO.readShort(0x80) == 1){
-                        wait = true;   
+                        wait = true;
+                        if(!graph)
+                        {
+                            Grootheid obj = lstScreens.get(currentScreen);
+                            obj.displayGraph();
+                        }
                         graph = true;
                     }else if(IO.readShort(0x80) == 0){
                         wait = false;
+                        if(graph)
+                        {
+                            Grootheid obj = lstScreens.get(currentScreen);
+                            obj.display();
+                        }
                         graph = false;
                     }
                 }else if(IO.readShort(0x100) == 0){
+                    if(IO.readShort(0x80) == 1){
+                        if(!graph)
+                        {
+                            Grootheid obj = lstScreens.get(currentScreen);
+                            obj.displayGraph();
+                        }
+                        graph = true;
+                    }else if(IO.readShort(0x80) == 0){
+                        if(graph)
+                        {
+                            Grootheid obj = lstScreens.get(currentScreen);
+                            obj.display();
+                        }
+                        graph = false;
+                    }
                     wait = true;
                 }               
             }