Struct SVGBackend 

pub struct SVGBackend<'a> { /* private fields */ }

The SVG image drawing backend

Implementations

impl<'a> SVGBackend<'a>

pub fn new<T: AsRef<Path> + ?Sized>(path: &'a T, size: (u32, u32)) -> Self

Create a new SVG drawing backend

pub fn with_buffer(buf: &'a mut Vec<u8>, size: (u32, u32)) -> Self

Create a new SVG drawing backend and store the document into a u8 buffer

Trait Implementations

impl<'a> DrawingBackend for SVGBackend<'a>

type ErrorType = Error

The error type reported by the backend

fn get_size(&self) -> (u32, u32)

Get the dimension of the drawing backend in pixel

fn ensure_prepared(&mut self) -> Result<(), DrawingErrorKind<Error>>

Ensure the backend is ready to draw

fn present(&mut self) -> Result<(), DrawingErrorKind<Error>>

Finialize the drawing step and present all the changes. This is used as the real-time rendering support. The backend may implement in the following way, when ensure_prepared is called it checks if it needs a fresh buffer and present is called rendering all the pending changes on the screen.

fn draw_pixel<C: Color>( &mut self, point: BackendCoord, color: &C, ) -> Result<(), DrawingErrorKind<Error>>

Draw a pixel on the drawing backend

fn draw_line<S: BackendStyle>( &mut self, from: BackendCoord, to: BackendCoord, style: &S, ) -> Result<(), DrawingErrorKind<Self::ErrorType>>

Draw a line on the drawing backend

fn draw_rect<S: BackendStyle>( &mut self, upper_left: BackendCoord, bottom_right: BackendCoord, style: &S, fill: bool, ) -> Result<(), DrawingErrorKind<Self::ErrorType>>

Draw a rectangle on the drawing backend

fn draw_path<S: BackendStyle, I: IntoIterator<Item = BackendCoord>>( &mut self, path: I, style: &S, ) -> Result<(), DrawingErrorKind<Self::ErrorType>>

Draw a path on the drawing backend

fn draw_circle<S: BackendStyle>( &mut self, center: BackendCoord, radius: u32, style: &S, fill: bool, ) -> Result<(), DrawingErrorKind<Self::ErrorType>>

Draw a circle on the drawing backend

fn draw_text<'b, C: Color>( &mut self, text: &str, font: &FontDesc<'b>, pos: BackendCoord, color: &C, ) -> Result<(), DrawingErrorKind<Self::ErrorType>>

Draw a text on the drawing backend

impl Drop for SVGBackend<'_>

fn drop(&mut self)

Executes the destructor for this type.