Trait ffimage::core::traits::GenericImageView

pub trait GenericImageView<'a> {
    type T: Pixel;
    type SubImage;
    fn width(&self) -> u32;
    fn height(&self) -> u32;
    fn pixel(&self, x: u32, y: u32) -> Option<Self::T>;
    fn view(
        &'a self, 
        x: u32, 
        y: u32, 
        width: u32, 
        height: u32
    ) -> Option<Self::SubImage>;
}

View into an image, provides read-only pixel access

Associated Types

type T: Pixel

Pixel type

type SubImage

Type of sub images

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Required methods

fn width(&self) -> u32

Width in pixels

fn height(&self) -> u32

Height in pixels

fn pixel(&self, x: u32, y: u32) -> Option<Self::T>

Returns the pixel at the specified coordinates

fn view(
    &'a self,
    x: u32,
    y: u32,
    width: u32,
    height: u32
) -> Option<Self::SubImage>

Returns a sub image view backed by the same data

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Implementors

impl<'a, I: GenericImageView<'a>> GenericImageView<'a> for SubImageView<'a, I>

type T = I::T

type SubImage = Self

fn width(&self) -> u32

fn height(&self) -> u32

fn pixel(&self, x: u32, y: u32) -> Option<Self::T>

fn view(
    &'a self,
    x: u32,
    y: u32,
    width: u32,
    height: u32
) -> Option<Self::SubImage>

impl<'a, T: Pixel + 'a> GenericImageView<'a> for ImageBuffer<T>

type T = T

fn width(&self) -> u32

fn height(&self) -> u32

fn pixel(&self, x: u32, y: u32) -> Option<Self::T>

type SubImage = SubImageView<'a, Self>

fn view(
    &'a self,
    x: u32,
    y: u32,
    width: u32,
    height: u32
) -> Option<Self::SubImage>

impl<'a, T: Pixel + 'a> GenericImageView<'a> for ImageView<'a, T>

type T = T

fn width(&self) -> u32

fn height(&self) -> u32

fn pixel(&self, x: u32, y: u32) -> Option<Self::T>

type SubImage = SubImageView<'a, Self>

fn view(
    &'a self,
    x: u32,
    y: u32,
    width: u32,
    height: u32
) -> Option<Self::SubImage>

impl<'a, T: Pixel + 'a> GenericImageView<'a> for ImageViewMut<'a, T>

type T = T

fn width(&self) -> u32

fn height(&self) -> u32

fn pixel(&self, x: u32, y: u32) -> Option<Self::T>

type SubImage = SubImageView<'a, Self>

fn view(
    &'a self,
    x: u32,
    y: u32,
    width: u32,
    height: u32
) -> Option<Self::SubImage>

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