Treat project files the same way as model files for job name

CURA-4553

cura/PrintInformation.py

@@ -67,11 +67,9 @@ class PrintInformation(QObject):
         self._base_name = ""
         self._abbr_machine = ""
         self._job_name = ""
-        self._project_name = ""
 
         Application.getInstance().globalContainerStackChanged.connect(self._updateJobName)
         Application.getInstance().fileLoaded.connect(self.setBaseName)
-        Application.getInstance().workspaceLoaded.connect(self.setProjectName)
         Preferences.getInstance().preferenceChanged.connect(self._onPreferencesChanged)
 
         self._active_material_container = None
@@ -253,26 +251,13 @@ class PrintInformation(QObject):
         self._job_name = name
         self.jobNameChanged.emit()
 
-    @pyqtSlot(str)
-    def setProjectName(self, name):
-        self._project_name = name
-        self.setJobName(name)
-
     jobNameChanged = pyqtSignal()
 
     @pyqtProperty(str, notify = jobNameChanged)
     def jobName(self):
         return self._job_name
 
-    def _updateJobName(self, is_project_name_empty = False):
-        # if the project name is set, we use the project name as the job name, so the job name should not get updated
-        # if a model file is loaded after that.
-        if self._project_name != "":
-            if is_project_name_empty:
-                self._project_name = ""
-            else:
-                return
-
+    def _updateJobName(self):
         if self._base_name == "":
             self._job_name = ""
             self.jobNameChanged.emit()
@@ -313,7 +298,7 @@ class PrintInformation(QObject):
             if name.endswith(".curaproject"):
                 name = name[:name.rfind(".curaproject")]
             self._base_name = name
-            self._updateJobName(is_project_name_empty = is_empty)
+            self._updateJobName()
 
     ##  Created an acronymn-like abbreviated machine name from the currently active machine name
     #   Called each time the global stack is switched