`splash_screen.py`¶

Animated splash screen with particle effects and progressive loading integration.

Classes¶

Animatable float that triggers a widget repaint on every change.

Method	Signature	Description
`__init__`	`(self, widget: QWidget, initial: float = 0.0)`	Args:
`_get`	`(self) → float`	Returns:
`_set`	`(self, value: float) → None`	Args:

Particle orbiting a center point with a pulsing size/opacity.

Method	Signature	Description
`random`	`(cls, center: QPointF, orbit_radius: float) → 'Particle'`	Args:
`update`	`(self, time_factor: float) → None`	Args:
`position`	`(self) → QPointF`	Returns:

Animated circular splash screen with particle effects and progress.

Method	Signature	Description
`__init__`	`(self, logo_path: Optional[str] = None, app_name: str = 'IsotopeTrack'`	Args:
`_configure_window`	`(self) → None`	Returns:
`_build_particles`	`(self) → None`	Returns:
`_build_ui`	`(self) → None`	Returns:
`_build_gradients`	`(self) → None`	Pre-compute gradients that never change between frames.
`_build_animations`	`(self) → None`	Returns:
`update_progress`	`(self, progress: float, status_text: str = '') → None`	Update progress (0–100) and optional status text.
`set_loading_complete`	`(self) → None`	Mark loading complete and schedule the close.
`get_progress`	`(self) → float`	Returns:
`set_progress`	`(self, value: float) → None`	Args:
`_tick`	`(self) → None`	Returns:
`paintEvent`	`(self, event) → None`	Args:
`_paint_glow`	`(self, painter: QPainter) → None`	Args:
`_paint_rings`	`(self, painter: QPainter) → None`	Args:
`_paint_particles`	`(self, painter: QPainter) → None`	Args:
`_paint_progress_arc`	`(self, painter: QPainter) → None`	Args:
`_paint_progress_text`	`(self, painter: QPainter) → None`	Args:
`_finish`	`(self) → None`	Returns:
`closeEvent`	`(self, event) → None`	Args:

Coordinates the splash screen with progressive main-window loading.

Method	Signature	Description
`__init__`	`(self, logo_path: Optional[str] = None, main_window_class: Optional[ty`	Args:
`start`	`(self) → None`	Returns:
`_on_loading_complete`	`(self) → None`	Returns:
`_on_splash_finished`	`(self) → None`	Returns: