Feat: Add CityObject retrieval passthrough for View

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/CityDoctorModel.java

@@ -119,6 +119,14 @@ public class CityDoctorModel {
         return globalErrors;
     }
 
+    public CityObject getCityObject(GmlId gmlid){
+        CityObject co = cache.get(gmlid);
+        if(co == null){
+            throw new IllegalArgumentException("Requested CityObject " + gmlid +", which doesn't exist");
+        }
+        return co;
+    }
+
     public File getFile() {
         return file;
     }

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/CityDoctorController.java

@@ -1604,6 +1604,15 @@ public class CityDoctorController {
         return model;
     }
 
+    public CityObject retrieveCityObject(GmlId gmlId) {
+        try{
+            return model.getCityObject(gmlId);
+        }catch(IllegalArgumentException e){
+            logger.warn(e.getMessage());
+            return null;
+        }
+    }
+
     public void showView(View v) {
         v.fireOnShowEvent(model, currentChecker, mainWindow);
     }

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/MainWindow.java

@@ -5,6 +5,7 @@ import de.hft.stuttgart.citydoctor2.check.ValidationConfiguration;
 import de.hft.stuttgart.citydoctor2.datastructure.BoundingBox;
 import de.hft.stuttgart.citydoctor2.datastructure.CityObject;
 import de.hft.stuttgart.citydoctor2.datastructure.FeatureType;
+import de.hft.stuttgart.citydoctor2.datastructure.GmlId;
 import de.hft.stuttgart.citydoctor2.gui.logger.GuiLogger;
 import de.hft.stuttgart.citydoctor2.gui.tree.Renderable;
 import de.hft.stuttgart.citydoctor2.gui.tree.RenderableTreeCell;
@@ -830,6 +831,9 @@ public class MainWindow extends Application {
         node.getFeatureExportAction(this);
     }
 
+    public CityObject retrieveCityObject(GmlId id){
+        return controller.retrieveCityObject(id);
+    }
 
     private void setupSelectListener(TreeView<Renderable> view) {
         view.getSelectionModel().selectedItemProperty().addListener((obs, oldI, newI) -> {