Struct audio_processor_testing_helpers::charts::BitMapElement

pub struct BitMapElement<'a, Coord, P = RGBPixel>where
    P: PixelFormat,{ /* private fields */ }

The element that contains a bitmap on it

Implementations

impl<'a, Coord, P> BitMapElement<'a, Coord, P>where
    P: PixelFormat,

pub fn new(pos: Coord, size: (u32, u32)) -> BitMapElement<'a, Coord, P>

Create a new empty bitmap element. This can be use as the draw and blit pattern.

• pos: The left upper coordinate for the element
• size: The size of the bitmap

pub fn with_owned_buffer(
    pos: Coord,
    size: (u32, u32),
    buf: Vec<u8, Global>
) -> Option<BitMapElement<'a, Coord, P>>

Create a new bitmap element with an pre-allocated owned buffer, this function will take the ownership of the buffer.

• pos: The left upper coordinate of the elelent
• size: The size of the bitmap
• buf: The buffer to use
• returns: The newly created image element, if the buffer isn’t fit the image dimension, this will returns an None.

pub fn with_mut(
    pos: Coord,
    size: (u32, u32),
    buf: &'a mut [u8]
) -> Option<BitMapElement<'a, Coord, P>>

Create a new bitmap element with a mut borrow to an existing buffer

• pos: The left upper coordinate of the elelent
• size: The size of the bitmap
• buf: The buffer to use
• returns: The newly created image element, if the buffer isn’t fit the image dimension, this will returns an None.

pub fn with_ref(
    pos: Coord,
    size: (u32, u32),
    buf: &'a [u8]
) -> Option<BitMapElement<'a, Coord, P>>

Create a new bitmap element with a shared borrowed buffer. This means if we want to modifiy the content of the image, the buffer is automatically copied

• pos: The left upper coordinate of the elelent
• size: The size of the bitmap
• buf: The buffer to use
• returns: The newly created image element, if the buffer isn’t fit the image dimension, this will returns an None.

pub fn copy_to<Coord2>(&self, pos: Coord2) -> BitMapElement<'_, Coord2, P>

Copy the existing bitmap element to another location

• pos: The new location to copy

pub fn move_to(&mut self, pos: Coord)

Move the existing bitmap element to a new position

• pos: The new position

pub fn as_bitmap_backend(&mut self) -> BitMapBackend<'_, P>

Make the bitmap element as a bitmap backend, so that we can use plotters drawing functionality on the bitmap element

Trait Implementations

impl<'a, Coord, DB> Drawable<DB, BackendCoordOnly> for BitMapElement<'a, Coord, RGBPixel>where
    DB: DrawingBackend,

fn draw<I>(
    &self,
    points: I,
    backend: &mut DB,
    (u32, u32)
) -> Result<(), DrawingErrorKind<<DB as DrawingBackend>::ErrorType>>where
    I: Iterator<Item = (i32, i32)>,

Actually draws the element. The key points is already translated into the image coordinate and can be used by DC directly

impl<'a, Coord> From<(Coord, DynamicImage)> for BitMapElement<'a, Coord, BGRXPixel>

fn from((Coord, DynamicImage)) -> BitMapElement<'a, Coord, BGRXPixel>

Converts to this type from the input type.

impl<'a, Coord> From<(Coord, DynamicImage)> for BitMapElement<'a, Coord, RGBPixel>

fn from((Coord, DynamicImage)) -> BitMapElement<'a, Coord, RGBPixel>

Converts to this type from the input type.

impl<'a, 'b, Coord> PointCollection<'a, Coord, BackendCoordOnly> for &'a BitMapElement<'b, Coord, RGBPixel>

type Point = &'a Coord

The item in point iterator

type IntoIter = Once<&'a Coord>

The point iterator

fn point_iter(
    self
) -> <&'a BitMapElement<'b, Coord, RGBPixel> as PointCollection<'a, Coord, BackendCoordOnly>>::IntoIter

framework to do the coordinate mapping