Introduce 'progress' parameter to enable progress bar (disabled by de…

…fault)

sinner/gui/GUIForm.py

@@ -39,6 +39,7 @@ class GUIForm(AttributeLoader):
     geometry: str
     state: str  # currently ignored, see issue #100
     sources_library: List[str]
+    show_progress: bool = False
 
     _event_player_window_closed: SinnerEvent  # the event when the player window is closed (forwarded via GUIModel)
 
@@ -90,6 +91,12 @@ def rules(self) -> Rules:
                 'attribute': 'sources_library',
                 'help': 'The paths to the source files/folders to use in the sources library'
             },
+            {
+                'parameter': {'progress', 'show-progress'},
+                'default': False,
+                'attribute': 'show_progress',
+                'help': 'Show processing progress indicator (experimental)'
+            },
             {
                 'module_help': 'GUI Form'
             }
@@ -151,7 +158,7 @@ def on_player_window_key_release(event: Event) -> None:  # type: ignore[type-arg
                 on_self_run_button_press()
 
         # Navigation slider
-        self.NavigateSlider: BaseFramePosition = FrameSlider(self.NavigationFrame, from_=1, variable=self.GUIModel.position, command=lambda position: self.GUIModel.rewind(int(position)))
+        self.NavigateSlider: BaseFramePosition = FrameSlider(self.NavigationFrame, from_=1, variable=self.GUIModel.position, command=lambda position: self.GUIModel.rewind(int(position)), progress=self.show_progress)
 
         # Controls frame and contents
         self.BaseFrame: Frame = Frame(self.GUIWindow)  # it is a frame that holds all static controls with fixed size, such as main buttons and selectors

sinner/gui/controls/FramePosition/FrameSlider.py

@@ -1,18 +1,18 @@
 from tkinter import DISABLED, NORMAL, IntVar
-from typing import Any, TypeVar, Type
+from typing import Any
 
 from customtkinter import CTkSlider
 
 from sinner.gui.controls.FramePosition.BaseFramePosition import BaseFramePosition
 from sinner.gui.controls.ProgressIndicator.BaseProgressIndicator import BaseProgressIndicator
+from sinner.gui.controls.ProgressIndicator.DummyProgressIndicator import DummyProgressIndicator
 from sinner.gui.controls.ProgressIndicator.SegmentedProgressBar import SegmentedProgressBar
 
-T = TypeVar('T', bound=BaseProgressIndicator)
-
 
 class FrameSlider(CTkSlider, BaseFramePosition):
+    progress: BaseProgressIndicator
 
-    def __init__(self, master: Any, progress: Type[T] = SegmentedProgressBar, **kwargs):  # type: ignore[no-untyped-def]
+    def __init__(self, master: Any, progress: bool = True, **kwargs):  # type: ignore[no-untyped-def]
         progress_height = 10
 
         # Инициализируем базовый слайдер с измененными параметрами
@@ -27,14 +27,16 @@ def __init__(self, master: Any, progress: Type[T] = SegmentedProgressBar, **kwar
             **kwargs
         )
 
-        self.progress: BaseProgressIndicator = progress(
-            master=self.master,
-            height=progress_height,
-            borderwidth=0,
-            border=0,
-            colors={0: 'orange', 1: 'yellow', 2: 'green', 3: 'red'}
-        )
-
+        if progress:
+            self.progress = SegmentedProgressBar(
+                master=self.master,
+                height=progress_height,
+                borderwidth=0,
+                border=0,
+                colors={0: 'orange', 1: 'yellow', 2: 'green', 3: 'red'}
+            )
+        else:
+            self.progress = DummyProgressIndicator()
         self.progress.place_configure(
             in_=self,
             x=0,

sinner/gui/controls/ProgressIndicator/DummyProgressIndicator.py

@@ -5,7 +5,7 @@
 
 #  stub to disable progress indicator, when needed
 class DummyProgressIndicator(BaseProgressIndicator):
-    def __init__(self, **kwargs):  # type: ignore[no-untyped-def]
+    def __init__(self, **kwargs) -> None:  # type: ignore[no-untyped-def]
         pass
 
     def set_segments(self, segments: int) -> None: