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utils

LazyMapPluginVideoOutputs 

LazyMapPluginVideoOutputs(
    main: MainWindow | None, func: Callable[[VideoNode], VideoNode]
)

Bases: PluginVideoOutputs

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def __init__(self, main: MainWindow | None, func: Callable[[vs.VideoNode], vs.VideoNode]) -> None:
    super().__init__(main)
    self.func = func

current property 

current: VideoOutput

func instance-attribute 

func = func

main instance-attribute 

main = main or main_window()

prepared property 

prepared: VideoNode

source property 

source: VideoNode

MappedNodesPlugin 

MappedNodesPlugin(main: MainWindow)

Bases: AbstractPlugin

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def __init__(self, main: MainWindow) -> None:
    super().__init__(main)

    self.outputs = LazyMapPluginVideoOutputs(main, self.get_node)

hlayout instance-attribute 

hlayout: HBoxLayout

index class-attribute instance-attribute 

index: int = -1

is_notches_visible property 

is_notches_visible: bool

main instance-attribute 

main = main

notches_changed class-attribute instance-attribute 

notches_changed = pyqtSignal(ExtendedWidget)

on_first_load class-attribute instance-attribute 

on_first_load = pyqtSignal()

outputs instance-attribute 

outputs = LazyMapPluginVideoOutputs(main, get_node)

settings instance-attribute 

settings: PluginSettings

shortcuts instance-attribute 

shortcuts: list[PluginShortcut] = []

storable_attrs class-attribute 

storable_attrs: tuple[str, ...] = ()

vlayout instance-attribute 

vlayout: VBoxLayout

add_shortcut 

add_shortcut(
    name: str,
    parent: QObject | str,
    /,
    handler: Callable[[], None] | str,
    key: QKeySequence | None = None,
    description: str | None = None,
) -> None

add_shortcut(key: Key | int, handler: Callable[[], None]) -> None

add_shortcut(
    name_or_key: Any,
    parent_or_handler: Any,
    /,
    handler: Callable[[], None] | str = "",
    key: QKeySequence | None = None,
    description: str | None = None,
) -> None
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def add_shortcut(
    self,
    name_or_key: Any,
    parent_or_handler: Any,
    /,
    handler: Callable[[], None] | str = "",
    key: QKeySequence | None = None,
    description: str | None = None
) -> None:
    if isinstance(name_or_key, str) and isinstance(parent_or_handler, (QObject | str)):
        name, parent, handler = name_or_key, parent_or_handler, handler
    else:
        name, parent, = f"shortcut_{self.__legacy_counter_shortcuts}", cast(QObject, self), 
        handler, key = parent_or_handler, QKeySequence(name_or_key)
        description = f"Shortcut {self.__legacy_counter_shortcuts}"
        self.__legacy_counter_shortcuts += 1

    self.shortcuts.append(PluginShortcut(name, parent, handler, key, description))

add_shortcuts 

add_shortcuts() -> None
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def add_shortcuts(self) -> None:
    ...

first_load 

first_load() -> bool
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def first_load(self) -> bool:
    if not self._first_load_done:
        self.setup_ui()

        self.setup_shortcuts()

        self.set_qobject_names()

        self.on_first_load.emit()  # type: ignore

        self._first_load_done = True

        return True

    return False

get_node 

get_node(node: VideoNode) -> VideoNode

get_node(node: VideoNode) -> VideoOutputNode

get_node(node: VideoNode) -> VideoNode | VideoOutputNode

get_node(node: VideoNode) -> VideoNode | VideoOutputNode
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def get_node(self, node: vs.VideoNode) -> vs.VideoNode | VideoOutputNode:
    raise NotImplementedError

get_notches 

get_notches() -> Notches
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def get_notches(self) -> Notches:
    from .custom import Notches
    return Notches()

get_separator 

get_separator(horizontal: bool = False) -> QFrame
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def get_separator(self, horizontal: bool = False) -> QFrame:
    separator = QFrame(self)
    separator.setFrameShape(QFrame.Shape.HLine if horizontal else QFrame.Shape.VLine)
    separator.setFrameShadow(QFrame.Shadow.Sunken)
    return separator

init_notches 

init_notches(main: MainWindow = ...) -> None
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def init_notches(self, main: MainWindow = ...) -> None:
    self.notches_changed.connect(main.timeline.update_notches)

init_outputs 

init_outputs() -> None
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def init_outputs(self) -> None:
    assert self.main.outputs

    self.outputs.clear()

on_current_frame_changed 

on_current_frame_changed(frame: Frame) -> None
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def on_current_frame_changed(self, frame: Frame) -> None:
    raise NotImplementedError

on_current_output_changed 

on_current_output_changed(index: int, prev_index: int) -> None
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def on_current_output_changed(self, index: int, prev_index: int) -> None:
    ...

reset 

reset() -> None
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def reset(self) -> None:
    self.init_outputs()

    self.on_current_frame_changed(self.main.current_output.last_showed_frame)

set_qobject_names 

set_qobject_names() -> None
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def set_qobject_names(self) -> None:
    if not hasattr(self, '__slots__'):
        return

    slots = list(self.__slots__)

    if isinstance(self, AbstractToolbar) and 'main' in slots:
        slots.remove('main')

    for attr_name in slots:
        attr = getattr(self, attr_name)
        if not isinstance(attr, QObject):
            continue
        attr.setObjectName(type(self).__name__ + '.' + attr_name)

setup_shortcuts 

setup_shortcuts() -> None
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def setup_shortcuts(self) -> None:
    self.main.shortcuts.sections_plugins[self._config.namespace].setup_shortcuts()

setup_ui 

setup_ui() -> None
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def setup_ui(self) -> None:
    self.vlayout = VBoxLayout(self)
    self.hlayout = HBoxLayout(self.vlayout)

MappedNodesViewPlugin 

MappedNodesViewPlugin(main: MainWindow)

Bases: MappedNodesPlugin, PluginGraphicsView

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def __init__(self, main: MainWindow) -> None:
    super().__init__(main)

    self.outputs = LazyMapPluginVideoOutputs(main, self.get_node)

WHEEL_STEP class-attribute instance-attribute 

WHEEL_STEP = 15 * 8

angleRemainder instance-attribute 

angleRemainder = 0

app instance-attribute 

app = instance()

auto_fit_button instance-attribute 

auto_fit_button = CheckBox('Auto-fit', self, clicked=auto_fit_button_clicked)

autofit property writable 

autofit: bool

content_height property 

content_height: int

content_width property 

content_width: int

controls instance-attribute 

controls = QFrame()

currentZoom instance-attribute 

currentZoom = 0.0

current_scene property 

current_scene: GraphicsImageItem

dragEvent class-attribute instance-attribute 

dragEvent = pyqtSignal(DragEventType)

drag_mode instance-attribute 

drag_mode: DragMode = dragMode()

graphics_scene instance-attribute 

graphics_scene = GraphicsScene(self)

hlayout instance-attribute 

hlayout: HBoxLayout

index class-attribute instance-attribute 

index: int = -1

is_notches_visible property 

is_notches_visible: bool

last_positions class-attribute instance-attribute 

last_positions = (0, 0)

main instance-attribute 

main = main

mouseMoved class-attribute instance-attribute 

mouseMoved = pyqtSignal(QMouseEvent)

mousePressed class-attribute instance-attribute 

mousePressed = pyqtSignal(QMouseEvent)

mouseReleased class-attribute instance-attribute 

mouseReleased = pyqtSignal(QMouseEvent)

notches_changed class-attribute instance-attribute 

notches_changed = pyqtSignal(ExtendedWidget)

on_first_load class-attribute instance-attribute 

on_first_load = pyqtSignal()

outputs instance-attribute 

outputs = LazyMapPluginVideoOutputs(main, get_node)

plugin instance-attribute 

plugin: MappedNodesPlugin

settings instance-attribute 

settings: PluginSettings

shortcuts instance-attribute 

shortcuts: list[PluginShortcut] = []

storable_attrs class-attribute 

storable_attrs: tuple[str, ...] = ()

underReload class-attribute instance-attribute 

underReload = False

vlayout instance-attribute 

vlayout: VBoxLayout

wheelScrolled class-attribute instance-attribute 

wheelScrolled = pyqtSignal(int)

zoomValue instance-attribute 

zoomValue = 0.0

zoom_combobox instance-attribute 

zoom_combobox = ComboBox[float](self, minimumContentsLength=4)

add_shortcut 

add_shortcut(
    name: str,
    parent: QObject | str,
    /,
    handler: Callable[[], None] | str,
    key: QKeySequence | None = None,
    description: str | None = None,
) -> None

add_shortcut(key: Key | int, handler: Callable[[], None]) -> None

add_shortcut(
    name_or_key: Any,
    parent_or_handler: Any,
    /,
    handler: Callable[[], None] | str = "",
    key: QKeySequence | None = None,
    description: str | None = None,
) -> None
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def add_shortcut(
    self,
    name_or_key: Any,
    parent_or_handler: Any,
    /,
    handler: Callable[[], None] | str = "",
    key: QKeySequence | None = None,
    description: str | None = None
) -> None:
    if isinstance(name_or_key, str) and isinstance(parent_or_handler, (QObject | str)):
        name, parent, handler = name_or_key, parent_or_handler, handler
    else:
        name, parent, = f"shortcut_{self.__legacy_counter_shortcuts}", cast(QObject, self), 
        handler, key = parent_or_handler, QKeySequence(name_or_key)
        description = f"Shortcut {self.__legacy_counter_shortcuts}"
        self.__legacy_counter_shortcuts += 1

    self.shortcuts.append(PluginShortcut(name, parent, handler, key, description))

add_shortcuts 

add_shortcuts() -> None
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def add_shortcuts(self) -> None:
    ...

afterReload 

afterReload() -> None
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def afterReload(self) -> None:
    self.underReload = False
    self.verticalScrollBar().setValue(self.last_positions[0])
    self.horizontalScrollBar().setValue(self.last_positions[1])
    self.setTransformationAnchor(QGraphicsView.ViewportAnchor.AnchorUnderMouse)

auto_fit_button_clicked 

auto_fit_button_clicked(checked: bool) -> None
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def auto_fit_button_clicked(self, checked: bool) -> None:
    self.autofit = checked

beforeReload 

beforeReload() -> None
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def beforeReload(self) -> None:
    self.underReload = True
    self.setTransformationAnchor(QGraphicsView.ViewportAnchor.AnchorViewCenter)
    self.last_positions = (self.verticalScrollBar().value(), self.horizontalScrollBar().value())

bind_to 

bind_to(other_view: GraphicsView, *, mutual: bool = True) -> None
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def bind_to(self, other_view: GraphicsView, *, mutual: bool = True) -> None:
    self.main.bound_graphics_views[other_view].add(self)

    if mutual:
        self.main.bound_graphics_views[self].add(other_view)

event 

event(event: QEvent) -> bool
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def event(self, event: QEvent) -> bool:
    if self.underReload:
        event.ignore()
        return False

    if isinstance(event, QNativeGestureEvent):
        typ = event.gestureType()
        if typ == Qt.NativeGestureType.BeginNativeGesture:
            self.zoomValue = 0.0
        elif typ == Qt.NativeGestureType.ZoomNativeGesture:
            self.zoomValue += event.value()
        if typ == Qt.NativeGestureType.EndNativeGesture:
            self.wheelScrolled.emit(-1 if self.zoomValue < 0 else 1)

    return super().event(event)

first_load 

first_load() -> bool
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def first_load(self) -> bool:
    if not self._first_load_done:
        self.setup_ui()

        self.setup_shortcuts()

        self.set_qobject_names()

        self.on_first_load.emit()  # type: ignore

        self._first_load_done = True

        return True

    return False

get_node 

get_node(node: VideoNode) -> VideoNode

get_node(node: VideoNode) -> VideoOutputNode

get_node(node: VideoNode) -> VideoNode | VideoOutputNode

get_node(node: VideoNode) -> VideoNode | VideoOutputNode
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def get_node(self, node: vs.VideoNode) -> vs.VideoNode | VideoOutputNode:
    raise NotImplementedError

get_notches 

get_notches() -> Notches
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def get_notches(self) -> Notches:
    from .custom import Notches
    return Notches()

get_separator 

get_separator(horizontal: bool = False) -> QFrame
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def get_separator(self, horizontal: bool = False) -> QFrame:
    separator = QFrame(self)
    separator.setFrameShape(QFrame.Shape.HLine if horizontal else QFrame.Shape.VLine)
    separator.setFrameShadow(QFrame.Shadow.Sunken)
    return separator

init_notches 

init_notches(main: MainWindow = ...) -> None
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def init_notches(self, main: MainWindow = ...) -> None:
    self.notches_changed.connect(main.timeline.update_notches)

init_outputs 

init_outputs() -> None
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def init_outputs(self) -> None:
    assert self.main.outputs

    self.outputs.clear()

mouseMoveEvent 

mouseMoveEvent(event: QMouseEvent) -> None
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def mouseMoveEvent(self, event: QMouseEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    super().mouseMoveEvent(event)

    if self.hasMouseTracking():
        self.mouseMoved.emit(event)

    self.dragEvent.emit(DragEventType.move)

mousePressEvent 

mousePressEvent(event: QMouseEvent) -> None
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def mousePressEvent(self, event: QMouseEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    if event.button() == Qt.MouseButton.LeftButton:
        self.drag_mode = self.dragMode()
        self.setDragMode(QGraphicsView.DragMode.ScrollHandDrag)

    super().mousePressEvent(event)

    self.mousePressed.emit(event)
    self.dragEvent.emit(DragEventType.start)

mouseReleaseEvent 

mouseReleaseEvent(event: QMouseEvent) -> None
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def mouseReleaseEvent(self, event: QMouseEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    super().mouseReleaseEvent(event)

    if event.button() == Qt.MouseButton.LeftButton:
        self.setDragMode(self.drag_mode)

    self.mouseReleased.emit(event)
    self.dragEvent.emit(DragEventType.stop)

on_current_frame_changed 

on_current_frame_changed(frame: Frame) -> None
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def on_current_frame_changed(self, frame: Frame) -> None:
    self.outputs.current.render_frame(frame, None, None, self.current_scene)

on_current_output_changed 

on_current_output_changed(index: int, prev_index: int) -> None
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def on_current_output_changed(self, index: int, prev_index: int) -> None:
    ...

on_wheel_scrolled 

on_wheel_scrolled(steps: int) -> None
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def on_wheel_scrolled(self, steps: int) -> None:
    self.zoom_combobox.setCurrentIndex(
        clamp(self.zoom_combobox.currentIndex() + steps, 0, len(self.zoom_combobox) - 1)
    )

propagate_move_event 

propagate_move_event(_: Any = None) -> None
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def propagate_move_event(self, _: Any = None) -> None:
    scrollbarW, scrollbarH = self.horizontalScrollBar(), self.verticalScrollBar()

    if not any({scrollbarW.isVisible(), scrollbarH.isVisible()}):
        return

    widthMax, heightMax = scrollbarW.maximum(), scrollbarH.maximum()

    for view in self.main.bound_graphics_views[self] - {self}:
        if view.isVisible():
            wBar, hBar = view.horizontalScrollBar(), view.verticalScrollBar()

            if widthMax:
                wBar.setValue(int(scrollbarW.value() * wBar.maximum() / widthMax))

            if heightMax:
                hBar.setValue(int(scrollbarH.value() * hBar.maximum() / heightMax))

reset 

reset() -> None
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def reset(self) -> None:
    self.init_outputs()

    self.on_current_frame_changed(self.main.current_output.last_showed_frame)

resizeEvent 

resizeEvent(event: QResizeEvent) -> None
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def resizeEvent(self, event: QResizeEvent) -> None:
    super().resizeEvent(event)
    self.setZoom(None)

setZoom 

setZoom(value: float | None) -> None
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def setZoom(self, value: float | None) -> None:
    for view in self.main.bound_graphics_views[self]:
        view._setZoom(value)

set_qobject_names 

set_qobject_names() -> None
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def set_qobject_names(self) -> None:
    if not hasattr(self, '__slots__'):
        return

    slots = list(self.__slots__)

    if isinstance(self, AbstractToolbar) and 'main' in slots:
        slots.remove('main')

    for attr_name in slots:
        attr = getattr(self, attr_name)
        if not isinstance(attr, QObject):
            continue
        attr.setObjectName(type(self).__name__ + '.' + attr_name)

setup_shortcuts 

setup_shortcuts() -> None
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def setup_shortcuts(self) -> None:
    self.main.shortcuts.sections_plugins[self._config.namespace].setup_shortcuts()

setup_ui 

setup_ui() -> None
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def setup_ui(self) -> None:
    self.vlayout = VBoxLayout(self)
    self.hlayout = HBoxLayout(self.vlayout)

setup_view 

setup_view() -> None
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def setup_view(self) -> None:
    for item in self.graphics_scene.graphics_items:
        item.hide()

    self.current_scene.show()
    self.graphics_scene.setSceneRect(QRectF(self.current_scene.pixmap().rect()))

wheelEvent 

wheelEvent(event: QWheelEvent) -> None
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def wheelEvent(self, event: QWheelEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    assert self.app

    modifier = event.modifiers()
    mouse = event.buttons()

    self.propagate_move_event()

    if modifier == Qt.KeyboardModifier.ControlModifier or mouse in {
        Qt.MouseButton.RightButton, Qt.MouseButton.MiddleButton
    }:
        angleDelta = event.angleDelta().y()

        # check if wheel wasn't rotated the other way since last rotation
        if self.angleRemainder * angleDelta < 0:
            self.angleRemainder = 0

        self.angleRemainder += angleDelta

        if abs(self.angleRemainder) >= self.WHEEL_STEP:
            self.wheelScrolled.emit(self.angleRemainder // self.WHEEL_STEP)
            self.angleRemainder %= self.WHEEL_STEP
        return
    elif modifier == Qt.KeyboardModifier.NoModifier:
        self.verticalScrollBar().setValue(self.verticalScrollBar().value() - event.angleDelta().y())
        self.horizontalScrollBar().setValue(self.horizontalScrollBar().value() - event.angleDelta().x())
        return
    elif modifier == Qt.KeyboardModifier.ShiftModifier:
        self.verticalScrollBar().setValue(self.verticalScrollBar().value() - event.angleDelta().x())
        self.horizontalScrollBar().setValue(self.horizontalScrollBar().value() - event.angleDelta().y())
        return

    event.ignore()

PluginGraphicsView 

PluginGraphicsView(
    main: MainWindow | MappedNodesPlugin,
    plugin: MappedNodesPlugin | None = None,
    parent: QWidget | None = None,
)

Bases: GraphicsView

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def __init__(
    self, main: MainWindow | MappedNodesPlugin, plugin: MappedNodesPlugin | None = None,
    parent: QWidget | None = None
) -> None:
    if isinstance(main, MappedNodesPlugin):
        plugin = main
        main = main.main

    super().__init__(main, parent)

    if plugin:
        self.plugin = plugin
        self.setSizePolicy(QSizePolicy.Policy.Maximum, QSizePolicy.Policy.Maximum)
    elif isinstance(self, MappedNodesPlugin):
        self.plugin = self
    else:
        raise RuntimeError('This GraphicsView has to be bound to a MappedNodesPlugin!')

    if isinstance(self, AbstractPlugin):
        self.plugin.on_first_load.connect(PluginGraphicsView.first_load.__get__(self))
    else:
        self.plugin.on_first_load.connect(self.first_load)

WHEEL_STEP class-attribute instance-attribute 

WHEEL_STEP = 15 * 8

angleRemainder instance-attribute 

angleRemainder = 0

app instance-attribute 

app = instance()

auto_fit_button instance-attribute 

auto_fit_button = CheckBox('Auto-fit', self, clicked=auto_fit_button_clicked)

autofit property writable 

autofit: bool

content_height property 

content_height: int

content_width property 

content_width: int

controls instance-attribute 

controls = QFrame()

currentZoom instance-attribute 

currentZoom = 0.0

current_scene property 

current_scene: GraphicsImageItem

dragEvent class-attribute instance-attribute 

dragEvent = pyqtSignal(DragEventType)

drag_mode instance-attribute 

drag_mode: DragMode = dragMode()

graphics_scene instance-attribute 

graphics_scene = GraphicsScene(self)

last_positions class-attribute instance-attribute 

last_positions = (0, 0)

main instance-attribute 

main: MainWindow = main

mouseMoved class-attribute instance-attribute 

mouseMoved = pyqtSignal(QMouseEvent)

mousePressed class-attribute instance-attribute 

mousePressed = pyqtSignal(QMouseEvent)

mouseReleased class-attribute instance-attribute 

mouseReleased = pyqtSignal(QMouseEvent)

plugin instance-attribute 

plugin: MappedNodesPlugin

underReload class-attribute instance-attribute 

underReload = False

wheelScrolled class-attribute instance-attribute 

wheelScrolled = pyqtSignal(int)

zoomValue instance-attribute 

zoomValue = 0.0

zoom_combobox instance-attribute 

zoom_combobox = ComboBox[float](self, minimumContentsLength=4)

afterReload 

afterReload() -> None
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def afterReload(self) -> None:
    self.underReload = False
    self.verticalScrollBar().setValue(self.last_positions[0])
    self.horizontalScrollBar().setValue(self.last_positions[1])
    self.setTransformationAnchor(QGraphicsView.ViewportAnchor.AnchorUnderMouse)

auto_fit_button_clicked 

auto_fit_button_clicked(checked: bool) -> None
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def auto_fit_button_clicked(self, checked: bool) -> None:
    self.autofit = checked

beforeReload 

beforeReload() -> None
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def beforeReload(self) -> None:
    self.underReload = True
    self.setTransformationAnchor(QGraphicsView.ViewportAnchor.AnchorViewCenter)
    self.last_positions = (self.verticalScrollBar().value(), self.horizontalScrollBar().value())

bind_to 

bind_to(other_view: GraphicsView, *, mutual: bool = True) -> None
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def bind_to(self, other_view: GraphicsView, *, mutual: bool = True) -> None:
    self.main.bound_graphics_views[other_view].add(self)

    if mutual:
        self.main.bound_graphics_views[self].add(other_view)

event 

event(event: QEvent) -> bool
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def event(self, event: QEvent) -> bool:
    if self.underReload:
        event.ignore()
        return False

    if isinstance(event, QNativeGestureEvent):
        typ = event.gestureType()
        if typ == Qt.NativeGestureType.BeginNativeGesture:
            self.zoomValue = 0.0
        elif typ == Qt.NativeGestureType.ZoomNativeGesture:
            self.zoomValue += event.value()
        if typ == Qt.NativeGestureType.EndNativeGesture:
            self.wheelScrolled.emit(-1 if self.zoomValue < 0 else 1)

    return super().event(event)

first_load 

first_load() -> None
Source code 
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def first_load(self) -> None:
    self.graphics_scene.init_scenes()
    self.setup_view()

mouseMoveEvent 

mouseMoveEvent(event: QMouseEvent) -> None
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def mouseMoveEvent(self, event: QMouseEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    super().mouseMoveEvent(event)

    if self.hasMouseTracking():
        self.mouseMoved.emit(event)

    self.dragEvent.emit(DragEventType.move)

mousePressEvent 

mousePressEvent(event: QMouseEvent) -> None
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def mousePressEvent(self, event: QMouseEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    if event.button() == Qt.MouseButton.LeftButton:
        self.drag_mode = self.dragMode()
        self.setDragMode(QGraphicsView.DragMode.ScrollHandDrag)

    super().mousePressEvent(event)

    self.mousePressed.emit(event)
    self.dragEvent.emit(DragEventType.start)

mouseReleaseEvent 

mouseReleaseEvent(event: QMouseEvent) -> None
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def mouseReleaseEvent(self, event: QMouseEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    super().mouseReleaseEvent(event)

    if event.button() == Qt.MouseButton.LeftButton:
        self.setDragMode(self.drag_mode)

    self.mouseReleased.emit(event)
    self.dragEvent.emit(DragEventType.stop)

on_wheel_scrolled 

on_wheel_scrolled(steps: int) -> None
Source code 
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def on_wheel_scrolled(self, steps: int) -> None:
    self.zoom_combobox.setCurrentIndex(
        clamp(self.zoom_combobox.currentIndex() + steps, 0, len(self.zoom_combobox) - 1)
    )

propagate_move_event 

propagate_move_event(_: Any = None) -> None
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def propagate_move_event(self, _: Any = None) -> None:
    scrollbarW, scrollbarH = self.horizontalScrollBar(), self.verticalScrollBar()

    if not any({scrollbarW.isVisible(), scrollbarH.isVisible()}):
        return

    widthMax, heightMax = scrollbarW.maximum(), scrollbarH.maximum()

    for view in self.main.bound_graphics_views[self] - {self}:
        if view.isVisible():
            wBar, hBar = view.horizontalScrollBar(), view.verticalScrollBar()

            if widthMax:
                wBar.setValue(int(scrollbarW.value() * wBar.maximum() / widthMax))

            if heightMax:
                hBar.setValue(int(scrollbarH.value() * hBar.maximum() / heightMax))

resizeEvent 

resizeEvent(event: QResizeEvent) -> None
Source code 
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def resizeEvent(self, event: QResizeEvent) -> None:
    super().resizeEvent(event)
    self.setZoom(None)

setZoom 

setZoom(value: float | None) -> None
Source code 
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def setZoom(self, value: float | None) -> None:
    for view in self.main.bound_graphics_views[self]:
        view._setZoom(value)

setup_view 

setup_view() -> None
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def setup_view(self) -> None:
    for item in self.graphics_scene.graphics_items:
        item.hide()

    self.current_scene.show()
    self.graphics_scene.setSceneRect(QRectF(self.current_scene.pixmap().rect()))

wheelEvent 

wheelEvent(event: QWheelEvent) -> None
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def wheelEvent(self, event: QWheelEvent) -> None:
    if self.underReload or self.autofit:
        return event.ignore()

    assert self.app

    modifier = event.modifiers()
    mouse = event.buttons()

    self.propagate_move_event()

    if modifier == Qt.KeyboardModifier.ControlModifier or mouse in {
        Qt.MouseButton.RightButton, Qt.MouseButton.MiddleButton
    }:
        angleDelta = event.angleDelta().y()

        # check if wheel wasn't rotated the other way since last rotation
        if self.angleRemainder * angleDelta < 0:
            self.angleRemainder = 0

        self.angleRemainder += angleDelta

        if abs(self.angleRemainder) >= self.WHEEL_STEP:
            self.wheelScrolled.emit(self.angleRemainder // self.WHEEL_STEP)
            self.angleRemainder %= self.WHEEL_STEP
        return
    elif modifier == Qt.KeyboardModifier.NoModifier:
        self.verticalScrollBar().setValue(self.verticalScrollBar().value() - event.angleDelta().y())
        self.horizontalScrollBar().setValue(self.horizontalScrollBar().value() - event.angleDelta().x())
        return
    elif modifier == Qt.KeyboardModifier.ShiftModifier:
        self.verticalScrollBar().setValue(self.verticalScrollBar().value() - event.angleDelta().x())
        self.horizontalScrollBar().setValue(self.horizontalScrollBar().value() - event.angleDelta().y())
        return

    event.ignore()

PluginVideoOutputs 

PluginVideoOutputs(main: MainWindow | None = None)

Bases: vs_object, dict[VideoOutput, VideoOutput]

Source code 
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def __init__(self, main: MainWindow | None = None) -> None:
    self.main = main or main_window()

current property 

current: VideoOutput

main instance-attribute 

main = main or main_window()

prepared property 

prepared: VideoNode

source property 

source: VideoNode