Struct piston_window::Viewport [−]
Stores viewport information.
Fields
rect: [i32; 4]
Viewport in pixels.
[x, y, width height]
where (x, y)
is lower left corner.
draw_size: [u32; 2]
The size of frame buffer in pixels.
window_size: [f64; 2]
The size of window in points.
Implementations
impl Viewport
pub fn abs_transform<T>(&self) -> [[T; 3]; 2] where
T: Float,
T: Float,
Computes absolute transform for 2D graphics, which uses a row major 2x3 matrix. The origin is in the upper left corner of the viewport rectangle. The x axis points to the right, and the y axis points down. The units are in points (window coordinates).
It is assumed that the underlying coordinate system is normalized
with the origin in the center, such that (-1.0, 1.0)
in the
underlying coordinate system corresponds to the
upper left corner of the viewport.
Trait Implementations
impl Clone for Viewport
pub fn clone(&self) -> Viewport
pub fn clone_from(&mut self, source: &Self)
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impl Copy for Viewport
impl Debug for Viewport
impl PartialEq<Viewport> for Viewport
impl StructuralPartialEq for Viewport
Auto Trait Implementations
impl RefUnwindSafe for Viewport
impl Send for Viewport
impl Sync for Viewport
impl Unpin for Viewport
impl UnwindSafe for Viewport
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
pub unsafe fn deref<'a>(ptr: usize) -> &'a T
pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
pub unsafe fn drop(ptr: usize)
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,