devela::_dep::sdl3::sys::events

Struct SDL_TouchFingerEvent

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#[repr(C)]pub struct SDL_TouchFingerEvent {
    pub type: SDL_EventType,
    pub reserved: u32,
    pub timestamp: u64,
    pub touchID: u64,
    pub fingerID: u64,
    pub x: f32,
    pub y: f32,
    pub dx: f32,
    pub dy: f32,
    pub pressure: f32,
    pub windowID: u32,
}

Available on crate feature dep_sdl3 only.

Expand description

Touch finger event structure (event.tfinger.*)

Coordinates in this event are normalized. x and y are normalized to a range between 0.0f and 1.0f, relative to the window, so (0,0) is the top left and (1,1) is the bottom right. Delta coordinates dx and dy are normalized in the ranges of -1.0f (traversed all the way from the bottom or right to all the way up or left) to 1.0f (traversed all the way from the top or left to all the way down or right).

Note that while the coordinates are normalized, they are not clamped, which means in some circumstances you can get a value outside of this range. For example, a renderer using logical presentation might give a negative value when the touch is in the letterboxing. Some platforms might report a touch outside of the window, which will also be outside of the range.

§Availability

This struct is available since SDL 3.2.0.

Fields§

§type: SDL_EventType

SDL_EVENT_FINGER_DOWN, SDL_EVENT_FINGER_UP, SDL_EVENT_FINGER_MOTION, or SDL_EVENT_FINGER_CANCELED

§reserved: u32§timestamp: u64

In nanoseconds, populated using [SDL_GetTicksNS()]

§touchID: u64

The touch device id

§fingerID: u64§x: f32

Normalized in the range 0…1

§y: f32

Normalized in the range 0…1

§dx: f32

Normalized in the range -1…1

§dy: f32

Normalized in the range -1…1

§pressure: f32

Normalized in the range 0…1

§windowID: u32

The window underneath the finger, if any

Trait Implementations§

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impl Clone for SDL_TouchFingerEvent

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fn clone(&self) -> SDL_TouchFingerEvent

Returns a copy of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Default for SDL_TouchFingerEvent

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fn default() -> SDL_TouchFingerEvent

Returns the “default value” for a type. Read more

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impl Copy for SDL_TouchFingerEvent

Auto Trait Implementations§

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Struct SDL_TouchFingerEventCopy item path

§Availability

Fields§

Trait Implementations§

impl Clone for SDL_TouchFingerEvent

fn clone(&self) -> SDL_TouchFingerEvent

fn clone_from(&mut self, source: &Self)

impl Default for SDL_TouchFingerEvent

fn default() -> SDL_TouchFingerEvent

impl Copy for SDL_TouchFingerEvent

Auto Trait Implementations§

impl Freeze for SDL_TouchFingerEvent

impl RefUnwindSafe for SDL_TouchFingerEvent

impl Send for SDL_TouchFingerEvent

impl Sync for SDL_TouchFingerEvent

impl Unpin for SDL_TouchFingerEvent

impl UnwindSafe for SDL_TouchFingerEvent

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> ByteSized for T

const BYTE_ALIGN: usize = _

const BYTE_SIZE: usize = _

fn byte_align(&self) -> usize

fn byte_size(&self) -> usize

fn ptr_size_ratio(&self) -> [usize; 2]

impl<T, R> Chain<R> for Twhere T: ?Sized,

fn chain<F>(self, f: F) -> Rwhere F: FnOnce(Self) -> R, Self: Sized,

fn chain_ref<F>(&self, f: F) -> Rwhere F: FnOnce(&Self) -> R,

fn chain_mut<F>(&mut self, f: F) -> Rwhere F: FnOnce(&mut Self) -> R,

impl<T> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dst: *mut u8)

impl<T> ExtAny for Twhere T: Any + ?Sized,

fn type_id() -> TypeId

fn type_of(&self) -> TypeId

fn type_name(&self) -> &'static str ⓘ

fn type_is<T: 'static>(&self) -> bool

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impl<T> ExtMem for Twhere T: ?Sized,

const NEEDS_DROP: bool = _

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘwhere F: FnOnce(&Self) -> bool,

Struct SDL_TouchFingerEvent

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T, R> Chain<R> for T
where T: ?Sized,

fn chain<F>(self, f: F) -> R
where F: FnOnce(Self) -> R, Self: Sized,

fn chain_ref<F>(&self, f: F) -> R
where F: FnOnce(&Self) -> R,

fn chain_mut<F>(&mut self, f: F) -> R
where F: FnOnce(&mut Self) -> R,

impl<T> CloneToUninit for T
where T: Clone,

impl<T> ExtAny for T
where T: Any + ?Sized,

fn as_any_ref(&self) -> &dyn Any
where Self: Sized,

fn as_any_mut(&mut self) -> &mut dyn Any
where Self: Sized,

fn as_any_box(self: Box<Self>) -> Box<dyn Any>
where Self: Sized,

impl<T> ExtMem for T
where T: ?Sized,

fn mem_copy(&self) -> Self
where Self: Copy,

fn mem_drop(self)
where Self: Sized,

fn mem_forget(self)
where Self: Sized,

fn mem_replace(&mut self, other: Self) -> Self
where Self: Sized,

fn mem_take(&mut self) -> Self
where Self: Default,

fn mem_swap(&mut self, other: &mut Self)
where Self: Sized,

fn mem_as_bytes(&self) -> &[u8] ⓘ
where Self: Sync + Unpin,

fn mem_as_bytes_mut(&mut self) -> &mut [u8] ⓘ
where Self: Sync + Unpin,

fn hook_ref<F>(self, f: F) -> Self
where F: FnOnce(&Self),

fn hook_mut<F>(self, f: F) -> Self
where F: FnOnce(&mut Self),

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

impl<F, T> IntoSample<T> for F
where T: FromSample<F>,

impl<T> ToOwned for T
where T: Clone,

impl<T, U> ToSample<U> for T
where U: FromSample<T>,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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where S: Into<Dispatch>,

impl<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,

impl<T> Ungil for T
where T: Send,