Enum cosmic::iced_winit::winit::event::Force

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pub enum Force {
    Calibrated {
        force: f64,
        max_possible_force: f64,
        altitude_angle: Option<f64>,
    },
    Normalized(f64),
}
Expand description

Describes the force of a touch event

Variants§

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Calibrated

On iOS, the force is calibrated so that the same number corresponds to roughly the same amount of pressure on the screen regardless of the device.

Fields

§force: f64

The force of the touch, where a value of 1.0 represents the force of an average touch (predetermined by the system, not user-specific).

The force reported by Apple Pencil is measured along the axis of the pencil. If you want a force perpendicular to the device, you need to calculate this value using the altitude_angle value.

§max_possible_force: f64

The maximum possible force for a touch.

The value of this field is sufficiently high to provide a wide dynamic range for values of the force field.

§altitude_angle: Option<f64>

The altitude (in radians) of the stylus.

A value of 0 radians indicates that the stylus is parallel to the surface. The value of this property is Pi/2 when the stylus is perpendicular to the surface.

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Normalized(f64)

If the platform reports the force as normalized, we have no way of knowing how much pressure 1.0 corresponds to – we know it’s the maximum amount of force, but as to how much force, you might either have to press really really hard, or not hard at all, depending on the device.

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impl Force

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pub fn normalized(&self) -> f64

Returns the force normalized to the range between 0.0 and 1.0 inclusive.

Instead of normalizing the force, you should prefer to handle Force::Calibrated so that the amount of force the user has to apply is consistent across devices.

Trait Implementations§

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impl Clone for Force

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fn clone(&self) -> Force

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Force

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl PartialEq for Force

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fn eq(&self, other: &Force) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for Force

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impl StructuralPartialEq for Force

Auto Trait Implementations§

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impl Freeze for Force

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impl RefUnwindSafe for Force

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impl Send for Force

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impl Sync for Force

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impl Unpin for Force

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impl UnwindSafe for Force

Blanket Implementations§

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impl<S, D, Swp, Dwp, T> AdaptInto<D, Swp, Dwp, T> for S
where T: Real + Zero + Arithmetics + Clone, Swp: WhitePoint<T>, Dwp: WhitePoint<T>, D: AdaptFrom<S, Swp, Dwp, T>,

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fn adapt_into_using<M>(self, method: M) -> D
where M: TransformMatrix<T>,

Convert the source color to the destination color using the specified method.
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fn adapt_into(self) -> D

Convert the source color to the destination color using the bradford method by default.
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Apply a function to this value and return the (possibly) modified value.
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fn apply<F>(self, f: F) -> Res
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Apply a function which takes the parameter by value.
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Apply a function which takes the parameter by reference.
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where F: FnOnce(&mut Self) -> Res,

Apply a function which takes the parameter by mutable reference.
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impl<T, C> ArraysFrom<C> for T
where C: IntoArrays<T>,

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fn arrays_from(colors: C) -> T

Cast a collection of colors into a collection of arrays.
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fn arrays_into(self) -> C

Cast this collection of arrays into a collection of colors.
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The number type that’s used in parameters when converting.
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Converts self into C, using the provided parameters.
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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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Cast a collection of colors into a collection of color components.
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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromAngle<T> for T

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fn from_angle(angle: T) -> T

Performs a conversion from angle.
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impl<T, U> FromStimulus<U> for T
where U: IntoStimulus<T>,

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Converts other into Self, while performing the appropriate scaling, rounding and clamping.
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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Performs a conversion into T.
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The number type that’s used in parameters when converting.
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Converts self into C, using the provided parameters.
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fn into_color(self) -> U

Convert into T with values clamped to the color defined bounds Read more
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Convert into T. The resulting color might be invalid in its color space Read more
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fn into_stimulus(self) -> T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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where C: TryFromComponents<T>,

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type Error = <C as TryFromComponents<T>>::Error

The error for when try_into_colors fails to cast.
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fn try_components_into(self) -> Result<C, <T as TryComponentsInto<C>>::Error>

Try to cast this collection of color components into a collection of colors. Read more
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The type returned in the event of a conversion error.
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Performs the conversion.
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fn try_into_color(self) -> Result<U, OutOfBounds<U>>

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