Hide sim speed controls behind a flag.

Flag is only controlled from the command-line because redoing Qt layout
usually breaks things. Off by default in 6 since this feature is nowhere
near done enough to even be used experimentally (most changes to the ATO
made after the sim begins will break the game).

Fixes https://github.com/dcs-liberation/dcs_liberation/issues/2535.

qt_ui/main.py

@@ -28,6 +28,7 @@ from qt_ui import (
     liberation_theme,
     uiconstants,
 )
+from qt_ui.uiflags import UiFlags
 from qt_ui.windows.GameUpdateSignal import GameUpdateSignal
 from qt_ui.windows.QLiberationWindow import QLiberationWindow
 from qt_ui.windows.preferences.QLiberationFirstStartWindow import (
@@ -61,7 +62,7 @@ def on_game_load(game: Game | None) -> None:
     EventStream.put_nowait(GameUpdateEvents().game_loaded(game))
 
 
-def run_ui(game: Game | None, dev: bool) -> None:
+def run_ui(game: Game | None, ui_flags: UiFlags) -> None:
     os.environ["QT_ENABLE_HIGHDPI_SCALING"] = "1"  # Potential fix for 4K screens
     QApplication.setHighDpiScaleFactorRoundingPolicy(
         Qt.HighDpiScaleFactorRoundingPolicy.PassThrough
@@ -150,7 +151,7 @@ def run_ui(game: Game | None, dev: bool) -> None:
     GameUpdateSignal.get_instance().game_loaded.connect(on_game_load)
 
     # Start window
-    window = QLiberationWindow(game, dev)
+    window = QLiberationWindow(game, ui_flags)
     window.showMaximized()
     splash.finish(window)
     qt_execution_code = app.exec_()
@@ -180,6 +181,19 @@ def parse_args() -> argparse.Namespace:
 
     parser.add_argument("--dev", action="store_true", help="Enable development mode.")
 
+    speed_controls_group = parser.add_argument_group()
+    speed_controls_group.add_argument(
+        "--show-sim-speed-controls",
+        action="store_true",
+        help="Shows the sim speed controls in the top panel.",
+    )
+    speed_controls_group.add_argument(
+        "--no-show-sim-speed-controls",
+        dest="show_sim_speed_controls",
+        action="store_false",
+        help="Hides the sim speed controls in the top panel (default).",
+    )
+
     parser.add_argument("--new-map", help="Deprecated. Does nothing.")
     parser.add_argument("--old-map", help="Deprecated. Does nothing.")
 
@@ -364,7 +378,7 @@ def main():
         return
 
     with Server().run_in_thread():
-        run_ui(game, args.dev)
+        run_ui(game, UiFlags(args.dev, args.show_sim_speed_controls))
 
 
 if __name__ == "__main__":