Implemented things needed for setHighLevelState

[Mograsim.git] / net.mograsim.logic.ui / src / net / mograsim / logic / ui / model / components / GUIBitDisplay.java

diff --git a/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.java b/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.java
index b9c8a10..3b909c5 100644 (file)
--- a/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.java
+++ b/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.java
@@ -6,7 +6,6 @@ import net.haspamelodica.swt.helper.gcs.GeneralGC;
 import net.haspamelodica.swt.helper.swtobjectwrappers.Font;
 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
-import net.mograsim.logic.core.LogicObservable;
 import net.mograsim.logic.core.LogicObserver;
 import net.mograsim.logic.core.components.BitDisplay;
 import net.mograsim.logic.core.types.BitVectorFormatter;
@@ -58,21 +57,16 @@ public class GUIBitDisplay extends GUIComponent
 
        public void setLogicModelBinding(BitDisplay bitDisplay)
        {
-               deregisterLogicObs(this.bitDisplay);
+               if (this.bitDisplay != null)
+                       this.bitDisplay.deregisterObserver(logicObs);
                this.bitDisplay = bitDisplay;
-               registerLogicObs(bitDisplay);
+               if (bitDisplay != null)
+                       bitDisplay.registerObserver(logicObs);
        }
 
-       private void registerLogicObs(LogicObservable observable)
+       public boolean hasLogicModelBinding()
        {
-               if (observable != null)
-                       observable.registerObserver(logicObs);
-       }
-
-       private void deregisterLogicObs(LogicObservable observable)
-       {
-               if (observable != null)
-                       observable.deregisterObserver(logicObs);
+               return bitDisplay != null;
        }
 
        public BitDisplay getBitDisplay()