Struct nannou::image::pnm::PnmHeader[−][src]

pub struct PnmHeader { /* fields omitted */ }

Expand description

Stores the complete header data of a file.

Internally, provides mechanisms for lossless reencoding. After reading a file with the decoder it is possible to recover the header and construct an encoder. Using the encoder on the just loaded image should result in a byte copy of the original file (for single image pnms without additional trailing data).

Implementations

impl PnmHeader

pub fn subtype(&self) -> PNMSubtype

Retrieve the format subtype from which the header was created.

pub fn width(&self) -> u32

The width of the image this header is for.

pub fn height(&self) -> u32

The height of the image this header is for.

pub fn maximal_sample(&self) -> u32

The biggest value a sample can have. In other words, the colour resolution.

pub fn as_bitmap(&self) -> Option<&BitmapHeader>

Retrieve the underlying bitmap header if any

pub fn as_graymap(&self) -> Option<&GraymapHeader>

Retrieve the underlying graymap header if any

pub fn as_pixmap(&self) -> Option<&PixmapHeader>

Retrieve the underlying pixmap header if any

pub fn as_arbitrary(&self) -> Option<&ArbitraryHeader>

Retrieve the underlying arbitrary header if any

pub fn write(&self, writer: &mut dyn Write) -> Result<(), Error>

Write the header back into a binary stream

Trait Implementations

impl From<ArbitraryHeader> for PnmHeader

pub fn from(header: ArbitraryHeader) -> PnmHeader

Performs the conversion.

impl From<BitmapHeader> for PnmHeader

pub fn from(header: BitmapHeader) -> PnmHeader

Performs the conversion.

impl From<GraymapHeader> for PnmHeader

pub fn from(header: GraymapHeader) -> PnmHeader

Performs the conversion.

impl From<PixmapHeader> for PnmHeader

pub fn from(header: PixmapHeader) -> PnmHeader

Performs the conversion.

Auto Trait Implementations

impl RefUnwindSafe for PnmHeader

impl Send for PnmHeader

impl Sync for PnmHeader

impl Unpin for PnmHeader

impl UnwindSafe for PnmHeader

Blanket Implementations

impl<S, D, Swp, Dwp, T> AdaptInto<D, Swp, Dwp, T> for S where
    T: Component + Float,
    D: AdaptFrom<S, Swp, Dwp, T>,
    Swp: WhitePoint,
    Dwp: WhitePoint,

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

Convert the source color to the destination color using the specified method Read more

fn adapt_into(self) -> D

Convert the source color to the destination color using the bradford method by default Read more

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

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T, U> ConvertInto<U> for T where
    U: ConvertFrom<T>,

pub fn convert_into(self) -> U

Convert into T with values clamped to the color defined bounds Read more

pub fn convert_unclamped_into(self) -> U

Convert into T. The resulting color might be invalid in its color space Read more

pub fn try_convert_into(self) -> Result<U, OutOfBounds<U>>

Convert into T, returning ok if the color is inside of its defined range, otherwise an OutOfBounds error is returned which contains the unclamped color. Read more

impl<T> Downcast<T> for T

pub fn downcast(&self) -> &T

impl<T> From<T> for T

pub fn from(t: T) -> T

Performs the conversion.

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

pub fn into(self) -> U

Performs the conversion.

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> Upcast<T> for T

pub fn upcast(&self) -> Option<&T>

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,

pub fn vzip(self) -> V