added task export UI widgets and task selector functionality

coding/ttr_map_maker/file_browsing.py

@@ -38,5 +38,17 @@ def browse_json_file(browse_request: str, var: tk.StringVar):
       var (tk.StringVar): variable to store the file path in
   """
   file_path = tk.filedialog.askopenfilename(filetypes=[(browse_request, "*.json")])
+  if file_path:
+    var.set(file_path)
+
+def browse_directory(browse_request: str, var: tk.StringVar):
+  """
+  Open a file dialog to select a directory. The file path is stored in the given variable.
+
+  Args:
+      browse_request (str): text to display in the file dialog
+      var (tk.StringVar): variable to store the file path in
+  """
+  file_path = tk.filedialog.askdirectory()
   if file_path:
     var.set(file_path)

coding/ttr_map_maker/task_editor_gui.py

@@ -1179,17 +1179,6 @@ def delete_task(self, task: TTR_Task, task_index: int):
       task_widgets[5].config(command=lambda task=self.task_list[row_index], task_index=row_index: self.delete_task(task, task_index))
 
 
-  def export_task_images(self) -> None:
-    """
-    Export the current task images to the directory given in `self.task_export_dir`.
-
-    Exporting is done using the following steps:
-    - hide all nodes, labels, edges and task indicators
-    - show background image
-    """
-    raise NotImplementedError("Exporting task images is not implemented yet.")
-
-
   def add_arrow_button(self, direction: str, parent_frame: tk.Frame, command: Callable) -> tk.Button:
     """
     add a button displaying an arrow in the given direction to the given parent frame and bind the command to it.