Struct Context

pub struct Context {
    pub inner: ContextInner,
}

Rendering context and API start point.

Fields

inner: ContextInner

Implementations

impl Context

pub fn pixel_format(&self) -> PixelFormat

Returns the context’s pixel format.

pub fn path_builder(&self) -> Option<PathBuilder>

Optionally returns a PathBuilder. May return None of old builder is still alive.

pub fn raster_builder(&self) -> Option<RasterBuilder>

Optionally returns a RasterBuilder. May return None of old builder is still alive.

pub fn new_image(&mut self, size: Size2D<u32>) -> Image

Creates a new image with size.

pub fn new_image_from_png<R: Read>( &mut self, reader: &mut Reader<R>, ) -> Result<Image, Error>

Creates a new image from PNG reader.

pub fn get_image(&mut self, image_index: u32) -> Image

Returns the image at image_index.

pub fn get_current_image(&mut self, context: &ViewAssistantContext) -> Image

Returns the context’s current image.

pub fn render( &mut self, composition: &mut Composition, clip: Option<Rect<u32>>, image: Image, ext: &RenderExt, )

Renders the composition with an optional clip to the image.

pub fn render_with_clip( &mut self, composition: &mut Composition, clip: Rect<u32>, image: Image, ext: &RenderExt, )

Renders the composition with a clip to the image.

Trait Implementations

impl Debug for Context

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.