prevent scenario window to open if study is not saved

src/Model/Scenario.py

@@ -31,7 +31,7 @@ class Scenario(SQLSubModel):
                  id: int = -1,
                  name: str = "",
                  description: str = "",
-                 x: int = 0.0, y: int = 0.0,
+                 x: int = 1000.0, y: int = 1000.0,
                  revision: int = 0,
                  parent=None):
         super(Scenario, self).__init__()

src/View/MainWindow.py

@@ -1206,6 +1206,31 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
         Returns:
             Nothing
         """
+        if self._study is None:
+            return
+        if self._study.filename is None or self._study.filename == "":
+            self.message_box(
+                window_title=self._trad["Warning"],
+                text=self._trad["mb_unsaved_study_title"],
+                informative_text=self._trad["mb_unsaved_studyh_msg"]
+            )
+
+            options = QFileDialog.Options()
+            options |= QFileDialog.DontUseNativeDialog
+
+            file_name, _ = QFileDialog.getSaveFileName(
+                self, "Save File",
+                "", "Pamhyr(*.pamhyr)",
+                options=options,
+            )
+            if file_name is None or file_name == "":
+                return
+
+            if file_name.rsplit(".", 1)[-1] == "pamhyr":
+                self._study.filename = file_name
+            else:
+                self._study.filename = file_name + ".pamhyr"
+
         if self._study is not None:
             if self.sub_window_exists(
                 ScenariosWindow,

src/View/Translate.py

@@ -266,6 +266,16 @@ class MainTranslate(UnitTranslate):
             "incompatible study version"
         )
 
+
+        self._dict["mb_unsaved_study_title"] = _translate(
+            "MainWindow", "Open scenarios window"
+        )
+        self._dict["mb_unsaved_studyh_msg"] = _translate(
+            "MainWindow",
+            "You must save your study to open "
+            "the scenario windows"
+        )
+
         self._dict["x"] = _translate("MainWindow", "X (m)")
         self._dict["y"] = _translate("MainWindow", "Y (m)")
         self._dict["Yes"] = _translate("MainWindow", "Yes")