ScaleUpdateEvent

ScaleUpdateEvent

Bases: Event[EventControlType]

control

control: EventControlType = field(repr=False)

data

data: Any | None = field(default=None, kw_only=True)

focal_point_delta

focal_point_delta: Offset = field(
    metadata={"data_field": "fpd"}
)

The amount the gesture's focal point has moved in the coordinate space of the event receiver since the previous update.

global_focal_point

global_focal_point: Offset = field(
    metadata={"data_field": "gfp"}
)

The focal point of the pointers in contact with the screen, in global coordinates.

horizontal_scale

horizontal_scale: float = field(
    metadata={"data_field": "hs"}
)

The scale implied by the average distance along the horizontal axis between the pointers in contact with the screen.

This value must be greater than or equal to zero.

local_focal_point

local_focal_point: Offset = field(
    metadata={"data_field": "lfp"}
)

The focal point of the pointers in contact with the screen, in local coordinates.

name

name: str

page

page: Page | PageView | None

pointer_count

pointer_count: int = field(metadata={'data_field': 'pc'})

The number of pointers being tracked by the gesture recognizer.

Typically this is the number of fingers being used to pan the widget using the gesture recognizer. Due to platform limitations, trackpad gestures count as two fingers even if more than two fingers are used.

rotation

rotation: float = field(metadata={'data_field': 'rot'})

The angle (in radians) implied by the first two pointers to enter in contact with the screen.

scale

scale: float = field(metadata={'data_field': 's'})

The scale implied by the average distance between the pointers in contact with the screen.

This value must be greater than or equal to zero.

target

target: int

timestamp

timestamp: Duration | None = field(
    default=None, metadata={"data_field": "ts"}
)

Recorded timestamp of the source pointer event that triggered the scale event.

Could be None if triggered from proxied events such as accessibility.

vertical_scale

vertical_scale: float = field(metadata={"data_field": "vs"})

The scale implied by the average distance along the vertical axis between the pointers in contact with the screen.

This value must be greater than or equal to zero.