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CanvasRef

Struct CanvasRef 

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pub struct CanvasRef<'a> { /* private fields */ }
Expand description

Canvas is an Image that can be drawn upon.

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impl<'a> CanvasRef<'a>

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pub fn new(s: Size, raw: &'a mut [u8]) -> Option<Self>

Create new empty canvas using the given slice.

Returns None if the slice is too small for the given image size. A bigger slice than needed is fine.

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pub fn into_image(self) -> ImageRef<'a>

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impl Canvas for CanvasRef<'_>

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unsafe fn as_bytes(&self) -> &[u8]

Get the raw canvas representation. Read more
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impl<'a> From<CanvasRef<'a>> for ImageRef<'a>

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fn from(value: CanvasRef<'a>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<'a> Freeze for CanvasRef<'a>

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impl<'a> RefUnwindSafe for CanvasRef<'a>

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impl<'a> Send for CanvasRef<'a>

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impl<'a> Sync for CanvasRef<'a>

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impl<'a> Unpin for CanvasRef<'a>

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impl<'a> UnsafeUnpin for CanvasRef<'a>

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impl<'a> UnwindSafe for CanvasRef<'a>

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Image for T
where T: Canvas,

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unsafe fn as_bytes(&self) -> &[u8]

Get the raw image representation. Read more
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fn sub(&self, p: Point, s: Size) -> SubImage<'_>

Get a rectangle subregion of the image.
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fn transparency(&self) -> Color

The color used for transparency. If no transparency, returns Color::None.
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fn pixels(&self) -> usize

The number of pixels the image has.
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fn width(&self) -> u16

The image width in pixels.
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fn height(&self) -> u16

The image height in pixels.
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fn size(&self) -> Size

The image size in pixels.
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.