Struct HudTransformGesture

One scale, deform or rotate gesture dragged across the preview, in the element's displayed space.

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetType()

Namespace: Serenity.GameUi.Application.Placement

Assembly: Serenity.GameUi.Application.dll

Syntax

public readonly struct HudTransformGesture

Remarks

Pointer vectors run from a fixed point to the mouse, in screen pixels with +Y down — the same convention HudDragGesture uses. The fixed point itself is already in container-local reference units with +Y up: it is read off the rendered rig rather than dragged, so it needs no screen conversion.

Constructors

HudTransformGesture(float, float, float, float, float, float, float, float, float, float, float, float, float, float)

Creates a scale, deform or rotate gesture.

Declaration

public HudTransformGesture(float startScale, float startRotationDegrees, float startVectorX, float startVectorY, float currentVectorX, float currentVectorY, float fixedPointX, float fixedPointY, float scaleSnapStep, float rotationSnapDegrees, float minScale, float maxScale, float startStretchX = 1, float startStretchY = 1)

Parameters

Type	Name	Description
float	startScale	The element's scale when the gesture began.
float	startRotationDegrees	The element's authored rotation when the gesture began.
float	startVectorX	Horizontal component of the fixed-point-to-pointer vector at gesture start.
float	startVectorY	Vertical component of the fixed-point-to-pointer vector at gesture start.
float	currentVectorX	Horizontal component of the fixed-point-to-pointer vector this frame.
float	currentVectorY	Vertical component of the fixed-point-to-pointer vector this frame.
float	fixedPointX	Horizontal position of the point that must not move.
float	fixedPointY	Vertical position of the point that must not move.
float	scaleSnapStep	Grid step the resulting scale or stretch is rounded to.
float	rotationSnapDegrees	Grid step the resulting rotation is rounded to, in degrees.
float	minScale	The lowest scale or stretch the gesture may produce.
float	maxScale	The highest scale or stretch the gesture may produce.
float	startStretchX	The element's stretch along its own local X axis when the gesture began.
float	startStretchY	The element's stretch along its own local Y axis when the gesture began.

Fields

CurrentVectorX

Horizontal component of the vector from the fixed point to the pointer this frame.

Declaration

public readonly float CurrentVectorX

Field Value

Type	Description
float

CurrentVectorY

Vertical component of the vector from the fixed point to the pointer this frame.

Declaration

public readonly float CurrentVectorY

Field Value

Type	Description
float

FixedPointX

Horizontal position of the point that must not move, in container-local reference units.

Declaration

public readonly float FixedPointX

Field Value

Type	Description
float

FixedPointY

Vertical position of the point that must not move, in container-local reference units.

Declaration

public readonly float FixedPointY

Field Value

Type	Description
float

MaxScale

The highest scale or stretch the gesture may produce.

Declaration

public readonly float MaxScale

Field Value

Type	Description
float

MinScale

The lowest scale or stretch the gesture may produce.

Declaration

public readonly float MinScale

Field Value

Type	Description
float

RotationSnapDegrees

Grid step the resulting rotation is rounded to, in degrees. Zero or less means free rotation.

Declaration

public readonly float RotationSnapDegrees

Field Value

Type	Description
float

ScaleSnapStep

Grid step the resulting scale or stretch is rounded to. Zero or less means free scaling.

Declaration

public readonly float ScaleSnapStep

Field Value

Type	Description
float

StartRotationDegrees

The element's authored rotation, in degrees, when the gesture began.

Declaration

public readonly float StartRotationDegrees

Field Value

Type	Description
float

StartScale

The element's scale when the gesture began.

Declaration

public readonly float StartScale

Field Value

Type	Description
float

StartStretchX

The element's stretch along its own local X axis when the gesture began.

Declaration

public readonly float StartStretchX

Field Value

Type	Description
float

StartStretchY

The element's stretch along its own local Y axis when the gesture began.

Declaration

public readonly float StartStretchY

Field Value

Type	Description
float

StartVectorX

Horizontal component of the vector from the fixed point to the pointer when the gesture began.

Declaration

public readonly float StartVectorX

Field Value

Type	Description
float

StartVectorY

Vertical component of the vector from the fixed point to the pointer when the gesture began.

Declaration

public readonly float StartVectorY

Field Value

Type	Description
float