Struct HtmlCanvas2DPainter 

pub struct HtmlCanvas2DPainter {
    height: f32,
    width: f32,
    context: CanvasRenderingContext2d,
    hits_only: bool,
}

Fields

height: f32

width: f32

context: CanvasRenderingContext2d

hits_only: bool

Implementations

impl HtmlCanvas2DPainter

pub fn new( context: CanvasRenderingContext2d, hits_only: bool, ) -> Result<HtmlCanvas2DPainter, KeyPaintError>

fn set_up_context_defaults(context: &CanvasRenderingContext2d)

fn fill_multiline_text( &mut self, bbox: &BoundingBox, lines: &'static [&'static str], colour: &str, ) -> Result<(), KeyPaintError>

fn draw_filled_stroked_rect(&self, x: f64, y: f64, w: f64, h: f64)

Trait Implementations

impl From<HtmlCanvas2DPainter> for JsValue

fn from(value: HtmlCanvas2DPainter) -> Self

Converts to this type from the input type.

impl FromWasmAbi for HtmlCanvas2DPainter

type Abi = WasmPtr<WasmRefCell<HtmlCanvas2DPainter>>

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: Self::Abi) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for HtmlCanvas2DPainter

type Abi = WasmPtr<WasmRefCell<HtmlCanvas2DPainter>>

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl KeyPainter for HtmlCanvas2DPainter

fn width(&self) -> f32

fn height(&self) -> f32

fn draw_background(&mut self) -> Result<(), KeyPaintError>

fn draw_key( &mut self, keybox: &BoundingBox, colour: &KeyColour, label: &KeyLabel, keycode: Code, ) -> Result<(), KeyPaintError>

impl LongRefFromWasmAbi for HtmlCanvas2DPainter

type Abi = WasmPtr<WasmRefCell<HtmlCanvas2DPainter>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<HtmlCanvas2DPainter>

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for HtmlCanvas2DPainter

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for HtmlCanvas2DPainter

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl RefFromWasmAbi for HtmlCanvas2DPainter

type Abi = WasmPtr<WasmRefCell<HtmlCanvas2DPainter>>

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<HtmlCanvas2DPainter>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for HtmlCanvas2DPainter

type Abi = WasmPtr<WasmRefCell<HtmlCanvas2DPainter>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<HtmlCanvas2DPainter>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl SupportsConstructor for HtmlCanvas2DPainter

impl SupportsInstanceProperty for HtmlCanvas2DPainter

impl SupportsStaticProperty for HtmlCanvas2DPainter

impl TryFromJsValue for HtmlCanvas2DPainter

fn try_from_js_value(value: JsValue) -> Result<Self, JsValue>

Performs the conversion.

fn try_from_js_value_ref(value: &JsValue) -> Option<Self>

Performs the conversion.

impl VectorFromWasmAbi for HtmlCanvas2DPainter

type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

unsafe fn vector_from_abi(js: Self::Abi) -> Box<[HtmlCanvas2DPainter]>

impl VectorIntoWasmAbi for HtmlCanvas2DPainter

type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

fn vector_into_abi(vector: Box<[HtmlCanvas2DPainter]>) -> Self::Abi

impl WasmDescribe for HtmlCanvas2DPainter

fn describe()

impl WasmDescribeVector for HtmlCanvas2DPainter

fn describe_vector()