Nullpointer bug fix and added observable value for steppingmode

ui/src/main/java/edu/kit/iti/formal/psdbg/gui/controller/DebuggerMain.java

@@ -107,6 +107,7 @@ public class DebuggerMain implements Initializable {
      */
     private ObservableBooleanValue executeNotPossible = proofTreeController.executeNotPossibleProperty().or(FACADE.readyToExecuteProperty().not());
 
+    // private ObservableBooleanValue stepNotPossible = proofTreeController.stepNotPossibleProperty();
     /**
      *
      */
@@ -398,8 +399,9 @@ public class DebuggerMain implements Initializable {
         this.debugMode.set(addInitBreakpoint);
         statusBar.publishMessage("Parse ...");
         try {
-
+            //parsing
             List<ProofScript> scripts = scriptController.getCombinedAST();
+            System.out.println("Parsed Scripts");
             int n = 0;
             if (scriptController.getMainScript() == null) {
                 MainScriptIdentifier msi = new MainScriptIdentifier();
@@ -646,7 +648,7 @@ public class DebuggerMain implements Initializable {
 
     /**
      * Perform a step over
-     *
+     *TODO Uebergabe des selctirkten Knotens damit richtiges ausgewählt
      * @param actionEvent
      */
     public void stepOver(ActionEvent actionEvent) {
@@ -656,7 +658,7 @@ public class DebuggerMain implements Initializable {
 
     /**
      * Perform a step back
-     *
+     *TODO Uebergabe des selctirkten Knotens damit richtiges ausgewählt
      * @param actionEvent
      */
     public void stepBack(ActionEvent actionEvent) {

ui/src/main/java/edu/kit/iti/formal/psdbg/gui/controller/ProofTreeController.java

@@ -137,15 +137,19 @@ public class ProofTreeController {
         });
         blocker.currentGoalsProperty().addListener((observable, oldValue, newValue) -> {
             Platform.runLater(() -> {
-                this.setCurrentGoals(newValue);
+                if (newValue != null) {
+                    this.setCurrentGoals(newValue);
+                }
             });
         });
 
         //add listener to nextcomputed node, that is updated whenever a new node is added to the stategraph
         nextComputedNode.addListener((observable, oldValue, newValue) -> {
             //update statepointer
-            this.statePointer = newValue;
-            setNewState(this.statePointer.getState());
+            if (newValue != null) {
+                this.statePointer = newValue;
+                setNewState(this.statePointer.getState());
+            }
 
         });
 
@@ -419,4 +423,7 @@ public class ProofTreeController {
         return alreadyExecuted.get();
     }
 
+   /* public ReadOnlyBooleanProperty stepNotPossibleProperty() {
+
+    }*/
 }

ui/src/main/resources/edu/kit/iti/formal/psdbg/examples/contraposition/script.kps

 // Please select one of the following scripts.
 //
+script test(){
 
+}
+
+script test1(){
+  impRight;
+}
+script test2(){
+impRight;
+impLeft;
+cases{
+    case match `?X -> ?Y ==> not(?Z)`:
+      notLeft;
+    default:
+      notRight;
+}
+
+}
 script cpClosable(){
     impRight;
     impRight;

ui/src/main/resources/edu/kit/iti/formal/psdbg/gui/controller/DebuggerMain.fxml

@@ -118,7 +118,7 @@
                         </SplitMenuButton>
 
 
-                        <Button>
+                        <Button disable="${controller.stepNotPossible}">
                             <graphic>
                                 <MaterialDesignIconView glyphName="DEBUG_STEP_INTO" size="24.0"/>
                             </graphic>
@@ -127,7 +127,7 @@
                             </tooltip>
                         </Button>
 
-                        <Button onAction="#stepOver">
+                        <Button onAction="#stepOver" disable="${controller.stepNotPossible}">
                             <graphic>
                                 <MaterialDesignIconView glyphName="DEBUG_STEP_OVER" size="24.0"/>
                             </graphic>
@@ -136,7 +136,7 @@
                             </tooltip>
                         </Button>
 
-                        <Button onAction="#stepBack">
+                        <Button onAction="#stepBack" disable="${controller.stepNotPossible}">
                             <graphic>
                                 <MaterialDesignIconView glyphName="DEBUG_STEP_OVER" size="24.0" scaleX="-1"/>
                             </graphic>
@@ -146,7 +146,7 @@
                         </Button>
 
 
-                        <Button>
+                        <Button disable="${controller.stepNotPossible}">
                             <graphic>
                                 <MaterialDesignIconView glyphName="DEBUG_STEP_OUT" size="24.0"/>
                             </graphic>
@@ -155,7 +155,7 @@
                             </tooltip>
                         </Button>
 
-                        <Button onAction="#stopDebugMode">
+                        <Button onAction="#stopDebugMode" disable="${controller.stepNotPossible}">
                             <!--disable="${! controller.debugMode}"-->
                             <graphic>
                                 <MaterialDesignIconView glyphName="STOP" size="24.0"/>