add: show export feature

src/controller/file/showfile_dialogs.py

@@ -6,7 +6,7 @@
 from PySide6.QtWidgets import QFileDialog, QWidget
 
 from controller.file.read import read_document
-from controller.file.write import write_document
+from controller.file.write import export_document, write_document
 from model import BoardConfiguration
 
 
@@ -78,3 +78,13 @@ def show_load_showfile_dialog(parent: QWidget, show_data: BoardConfiguration) ->
 
     """
     _select_file(parent, _load_show_file, False, show_data)
+
+def open_show_export_dialog(parent: QWidget, show_data: BoardConfiguration) -> None:
+    """Opens a dialog to export the provided show by fish in standalone mode."""
+    file_dialog = QFileDialog(parent, "Export Show")
+    file_dialog.setNameFilter("Fish Standalone Show (*.fs)")
+    file_dialog.setAcceptMode(QFileDialog.AcceptMode.AcceptSave)
+    file_dialog.setDefaultSuffix(".fs")
+    file_dialog.setDirectory(os.path.expanduser("~"))
+    file_dialog.fileSelected.connect(lambda file_name: export_document(file_name, show_data))
+    file_dialog.show()

src/controller/file/write.py

@@ -15,13 +15,16 @@
 
 def write_document(file_name: str, show_data: BoardConfiguration) -> bool:
     """Writes the xml element to the specified file.
+
     See https://github.com/Mission-DMX/Docs/blob/main/FormatSchemes/ProjectFile/ShowFile_v0.xsd for more information.
 
     Args:
         file_name: The (path and) file to which the xml element should be written.
-        show_data: The show to save
+        show_data: The show to save.
+
+    Returns:
+        True, if successfully, otherwise false with error message.
 
-    Returns: True, if successfully, otherwise false with error message.
     """
     pn = get_process_notifier("Saving Showfile", 2)
     xml = create_xml(show_data, pn)
@@ -42,3 +45,28 @@ def write_document(file_name: str, show_data: BoardConfiguration) -> bool:
     # except IOError:
     #    print(f"Could not save {file_name}")
     #    return False
+
+
+def export_document(file_name: str, show_data: BoardConfiguration) -> bool:
+    """Exports the show data into a fish stand-alone show file.
+
+    Warning: This method will override existing files without warning.
+
+    Args:
+        file_name: The (path and) file to which the xml element should be written.
+        show_data: The show to save
+
+    Returns:
+        True, if successfully, otherwise false with error message.
+
+    """
+    pn = get_process_notifier("Exporting Showfile", 2)
+    xml = create_xml(show_data, pn, assemble_for_fish_loading=True)
+    pn.current_step_description = "Writing to disk."
+    pn.current_step_number += 1
+    with open(file_name, "w+", encoding="UTF-8") as file:
+        ET.indent(xml)
+        file.write(ET.tostring(xml, encoding="unicode", method="xml"))
+    pn.current_step_number += 1
+    pn.close()
+    return True

src/view/main_window.py

@@ -12,7 +12,12 @@
 
 import proto.RealTimeControl_pb2
 import style
-from controller.file.showfile_dialogs import _save_show_file, show_load_showfile_dialog, show_save_showfile_dialog
+from controller.file.showfile_dialogs import (
+    _save_show_file,
+    open_show_export_dialog,
+    show_load_showfile_dialog,
+    show_save_showfile_dialog,
+)
 from controller.network import NetworkManager
 from controller.utils.process_notifications import get_global_process_state, get_progress_changed_signal
 from model.board_configuration import BoardConfiguration
@@ -194,6 +199,8 @@ def _setup_menubar(self) -> None:
                 ("Save Showfile", self._save_show, "S"),
                 ("&Save Showfile As", lambda: show_save_showfile_dialog(self, self._board_configuration), "Shift+S"),
                 ("---", None, None),
+                ("Export to Standalone", lambda: open_show_export_dialog(self, self._board_configuration), None),
+                ("---", None, None),
                 ("Settings", self.open_show_settings, ","),
             ],
             "Edit": [