Struct Forma

pub struct Forma;

Implementations

impl Forma

pub fn new_context_without_token( size: Size2D<u32>, display_rotation: DisplayRotation, ) -> FormaContext

Trait Implementations

impl Backend for Forma

type Image = FormaImage

Buffer-backed image that can be used for rendering or storing pixel data.

type Context = FormaContext

Backend’s rendering context.

type Path = FormaPath

Vector path.

type PathBuilder = FormaPathBuilder

Stateful path builder.

type Raster = FormaRaster

Compact rasterized form of any number of paths.

type RasterBuilder = FormaRasterBuilder

Stateful raster builder.

type Composition = FormaComposition

Composition of stylized rasters.

fn new_context( token: ClientEnd<BufferCollectionTokenMarker>, size: Size2D<u32>, display_rotation: DisplayRotation, ) -> FormaContext

Creates a new rendering context

impl Clone for Forma

fn clone(&self) -> Forma

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Composition<Forma> for FormaComposition

fn new(background_color: Color) -> Self

Creates a composition of ordered layers where the layers with lower index appear on top.

fn clear(&mut self)

Resets composition by removing all layers.

fn insert(&mut self, order: Order, layer: Layer<Forma>)

Inserts layer into the composition.

fn remove(&mut self, order: Order)

Removes layer from the composition.

impl Context<Forma> for FormaContext

fn pixel_format(&self) -> PixelFormat

Returns the context’s pixel format.

fn path_builder(&self) -> Option<FormaPathBuilder>

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

fn raster_builder(&self) -> Option<FormaRasterBuilder>

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

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

Creates a new image with size.

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

Creates a new image from PNG reader.

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

Returns the image at image_index.

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

Returns the context’s current image.

fn render_with_clip( &mut self, composition: &mut FormaComposition, clip: Rect<u32>, image: FormaImage, ext: &RenderExt<Forma>, )

Renders the composition with a clip to the image.

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

Renders the composition with an optional clip to the image.

impl Debug for Forma

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

Formats the value using the given formatter.

impl Default for Forma

fn default() -> Forma

Returns the “default value” for a type.

impl Hash for Forma

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Forma

fn cmp(&self, other: &Forma) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Forma

fn eq(&self, other: &Forma) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Forma

fn partial_cmp(&self, other: &Forma) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PathBuilder<Forma> for FormaPathBuilder

fn move_to(&mut self, point: Point) -> &mut Self

Move end-point to.

fn line_to(&mut self, point: Point) -> &mut Self

Create line from end-point to point and update end-point.

fn quad_to(&mut self, p1: Point, p2: Point) -> &mut Self

Create quadratic Bézier from end-point to p2 with p1 as control point.

fn cubic_to(&mut self, p1: Point, p2: Point, p3: Point) -> &mut Self

Create cubic Bézier from end-point to p3 with p1 and p2 as control points.

fn rat_quad_to(&mut self, p1: Point, p2: Point, w: f32) -> &mut Self

Create rational quadratic Bézier from end-point to p2 with p1 as control point and w as its weight.

fn rat_cubic_to( &mut self, p1: Point, p2: Point, p3: Point, w1: f32, w2: f32, ) -> &mut Self

Create rational cubic Bézier from end-point to p3 with p1 and p2 as control points, and w1 and w2 their weights.

fn build(self) -> FormaPath

Closes the path with a line if not yet closed and builds the path.

impl RasterBuilder<Forma> for FormaRasterBuilder

fn add_with_transform( &mut self, path: &FormaPath, transform: &Transform2D<f32>, ) -> &mut Self

Add a path to the raster with transform.

fn build(self) -> FormaRaster

Builds the raster.

fn add( &mut self, path: &B::Path, transform: Option<&Transform2D<f32>>, ) -> &mut Self

Add a path to the raster with optional transform.

impl Copy for Forma

impl Eq for Forma

impl StructuralPartialEq for Forma