Struct OffscreenCanvasRenderingContext2d 

#[repr(transparent)]
pub struct OffscreenCanvasRenderingContext2d {
    pub obj: Object,
}

The OffscreenCanvasRenderingContext2d class.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

Fields

obj: Object

Implementations

impl OffscreenCanvasRenderingContext2d

pub fn canvas(&self) -> OffscreenCanvas

Getter for the canvas field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvas, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn global_alpha(&self) -> f64

Getter for the globalAlpha field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_global_alpha(&self, value: f64)

Setter for the globalAlpha field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn global_composite_operation(&self) -> Result<String, JsValue>

Getter for the globalCompositeOperation field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_global_composite_operation(&self, value: &str) -> Result<(), JsValue>

Setter for the globalCompositeOperation field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn stroke_style(&self) -> JsValue

Getter for the strokeStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_stroke_style(&self, value: &JsValue)

👎Deprecated

Setter for the strokeStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_stroke_style_str(&self, value: &str)

Setter for the strokeStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_stroke_style_canvas_gradient(&self, value: &CanvasGradient)

Setter for the strokeStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasGradient, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_stroke_style_canvas_pattern(&self, value: &CanvasPattern)

Setter for the strokeStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn fill_style(&self) -> JsValue

Getter for the fillStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_fill_style(&self, value: &JsValue)

👎Deprecated

Setter for the fillStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_fill_style_str(&self, value: &str)

Setter for the fillStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_fill_style_canvas_gradient(&self, value: &CanvasGradient)

Setter for the fillStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasGradient, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_fill_style_canvas_pattern(&self, value: &CanvasPattern)

Setter for the fillStyle field of this object.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn filter(&self) -> String

Getter for the filter field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_filter(&self, value: &str)

Setter for the filter field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn image_smoothing_enabled(&self) -> bool

Getter for the imageSmoothingEnabled field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_image_smoothing_enabled(&self, value: bool)

Setter for the imageSmoothingEnabled field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn line_width(&self) -> f64

Getter for the lineWidth field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_line_width(&self, value: f64)

Setter for the lineWidth field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn line_cap(&self) -> String

Getter for the lineCap field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_line_cap(&self, value: &str)

Setter for the lineCap field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn line_join(&self) -> String

Getter for the lineJoin field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_line_join(&self, value: &str)

Setter for the lineJoin field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn miter_limit(&self) -> f64

Getter for the miterLimit field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_miter_limit(&self, value: f64)

Setter for the miterLimit field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn line_dash_offset(&self) -> f64

Getter for the lineDashOffset field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_line_dash_offset(&self, value: f64)

Setter for the lineDashOffset field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn shadow_offset_x(&self) -> f64

Getter for the shadowOffsetX field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_shadow_offset_x(&self, value: f64)

Setter for the shadowOffsetX field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn shadow_offset_y(&self) -> f64

Getter for the shadowOffsetY field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_shadow_offset_y(&self, value: f64)

Setter for the shadowOffsetY field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn shadow_blur(&self) -> f64

Getter for the shadowBlur field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_shadow_blur(&self, value: f64)

Setter for the shadowBlur field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn shadow_color(&self) -> String

Getter for the shadowColor field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_shadow_color(&self, value: &str)

Setter for the shadowColor field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn font(&self) -> String

Getter for the font field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_font(&self, value: &str)

Setter for the font field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn text_align(&self) -> String

Getter for the textAlign field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_text_align(&self, value: &str)

Setter for the textAlign field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn text_baseline(&self) -> String

Getter for the textBaseline field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_text_baseline(&self, value: &str)

Setter for the textBaseline field of this object.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_image_element( &self, image: &HtmlImageElement, dx: f64, dy: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlImageElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_canvas_element( &self, image: &HtmlCanvasElement, dx: f64, dy: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlCanvasElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_video_element( &self, image: &HtmlVideoElement, dx: f64, dy: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlVideoElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_image_bitmap( &self, image: &ImageBitmap, dx: f64, dy: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: ImageBitmap, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_offscreen_canvas( &self, image: &OffscreenCanvas, dx: f64, dy: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvas, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_image_element_and_dw_and_dh( &self, image: &HtmlImageElement, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlImageElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_canvas_element_and_dw_and_dh( &self, image: &HtmlCanvasElement, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlCanvasElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_video_element_and_dw_and_dh( &self, image: &HtmlVideoElement, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlVideoElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_image_bitmap_and_dw_and_dh( &self, image: &ImageBitmap, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: ImageBitmap, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_offscreen_canvas_and_dw_and_dh( &self, image: &OffscreenCanvas, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvas, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_image_element_and_sw_and_sh_and_dx_and_dy_and_dw_and_dh( &self, image: &HtmlImageElement, sx: f64, sy: f64, sw: f64, sh: f64, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlImageElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_canvas_element_and_sw_and_sh_and_dx_and_dy_and_dw_and_dh( &self, image: &HtmlCanvasElement, sx: f64, sy: f64, sw: f64, sh: f64, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlCanvasElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_html_video_element_and_sw_and_sh_and_dx_and_dy_and_dw_and_dh( &self, image: &HtmlVideoElement, sx: f64, sy: f64, sw: f64, sh: f64, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: HtmlVideoElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_image_bitmap_and_sw_and_sh_and_dx_and_dy_and_dw_and_dh( &self, image: &ImageBitmap, sx: f64, sy: f64, sw: f64, sh: f64, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: ImageBitmap, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn draw_image_with_offscreen_canvas_and_sw_and_sh_and_dx_and_dy_and_dw_and_dh( &self, image: &OffscreenCanvas, sx: f64, sy: f64, sw: f64, sh: f64, dx: f64, dy: f64, dw: f64, dh: f64, ) -> Result<(), JsValue>

The drawImage() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvas, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn begin_path(&self)

The beginPath() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn clip(&self)

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn clip_with_canvas_winding_rule(&self, winding: CanvasWindingRule)

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasWindingRule, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn clip_with_path_2d(&self, path: &Path2d)

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn clip_with_path_2d_and_winding( &self, path: &Path2d, winding: CanvasWindingRule, )

The clip() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasWindingRule, OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn fill(&self)

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn fill_with_canvas_winding_rule(&self, winding: CanvasWindingRule)

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasWindingRule, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn fill_with_path_2d(&self, path: &Path2d)

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn fill_with_path_2d_and_winding( &self, path: &Path2d, winding: CanvasWindingRule, )

The fill() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasWindingRule, OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn is_point_in_path_with_f64(&self, x: f64, y: f64) -> bool

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn is_point_in_path_with_f64_and_canvas_winding_rule( &self, x: f64, y: f64, winding: CanvasWindingRule, ) -> bool

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasWindingRule, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn is_point_in_path_with_path_2d_and_f64( &self, path: &Path2d, x: f64, y: f64, ) -> bool

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn is_point_in_path_with_path_2d_and_f64_and_winding( &self, path: &Path2d, x: f64, y: f64, winding: CanvasWindingRule, ) -> bool

The isPointInPath() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasWindingRule, OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn is_point_in_stroke_with_x_and_y(&self, x: f64, y: f64) -> bool

The isPointInStroke() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn is_point_in_stroke_with_path_and_x_and_y( &self, path: &Path2d, x: f64, y: f64, ) -> bool

The isPointInStroke() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn stroke(&self)

The stroke() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn stroke_with_path(&self, path: &Path2d)

The stroke() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d, Path2d

impl OffscreenCanvasRenderingContext2d

pub fn create_linear_gradient( &self, x0: f64, y0: f64, x1: f64, y1: f64, ) -> CanvasGradient

The createLinearGradient() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasGradient, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_pattern_with_html_image_element( &self, image: &HtmlImageElement, repetition: &str, ) -> Result<Option<CanvasPattern>, JsValue>

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, HtmlImageElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_pattern_with_html_canvas_element( &self, image: &HtmlCanvasElement, repetition: &str, ) -> Result<Option<CanvasPattern>, JsValue>

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, HtmlCanvasElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_pattern_with_html_video_element( &self, image: &HtmlVideoElement, repetition: &str, ) -> Result<Option<CanvasPattern>, JsValue>

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, HtmlVideoElement, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_pattern_with_image_bitmap( &self, image: &ImageBitmap, repetition: &str, ) -> Result<Option<CanvasPattern>, JsValue>

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, ImageBitmap, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_pattern_with_offscreen_canvas( &self, image: &OffscreenCanvas, repetition: &str, ) -> Result<Option<CanvasPattern>, JsValue>

The createPattern() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasPattern, OffscreenCanvas, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_radial_gradient( &self, x0: f64, y0: f64, r0: f64, x1: f64, y1: f64, r1: f64, ) -> Result<CanvasGradient, JsValue>

The createRadialGradient() method.

MDN Documentation

This API requires the following crate features to be activated: CanvasGradient, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_image_data_with_sw_and_sh( &self, sw: f64, sh: f64, ) -> Result<ImageData, JsValue>

The createImageData() method.

MDN Documentation

This API requires the following crate features to be activated: ImageData, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn create_image_data_with_imagedata( &self, imagedata: &ImageData, ) -> Result<ImageData, JsValue>

The createImageData() method.

MDN Documentation

This API requires the following crate features to be activated: ImageData, OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn get_image_data( &self, sx: i32, sy: i32, sw: i32, sh: i32, ) -> Result<ImageData, JsValue>

The getImageData() method.

MDN Documentation

This API requires the following crate features to be activated: ImageData, OffscreenCanvasRenderingContext2d

This API is unstable and requires --cfg=web_sys_unstable_apis to be activated, as described in the wasm-bindgen guide

impl OffscreenCanvasRenderingContext2d

pub fn put_image_data( &self, imagedata: &ImageData, dx: i32, dy: i32, ) -> Result<(), JsValue>

The putImageData() method.

MDN Documentation

This API requires the following crate features to be activated: ImageData, OffscreenCanvasRenderingContext2d

This API is unstable and requires --cfg=web_sys_unstable_apis to be activated, as described in the wasm-bindgen guide

impl OffscreenCanvasRenderingContext2d

pub fn put_image_data_with_dirty_x_and_dirty_y_and_dirty_width_and_dirty_height( &self, imagedata: &ImageData, dx: i32, dy: i32, dirty_x: i32, dirty_y: i32, dirty_width: i32, dirty_height: i32, ) -> Result<(), JsValue>

The putImageData() method.

MDN Documentation

This API requires the following crate features to be activated: ImageData, OffscreenCanvasRenderingContext2d

This API is unstable and requires --cfg=web_sys_unstable_apis to be activated, as described in the wasm-bindgen guide

impl OffscreenCanvasRenderingContext2d

pub fn arc( &self, x: f64, y: f64, radius: f64, start_angle: f64, end_angle: f64, ) -> Result<(), JsValue>

The arc() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn arc_with_anticlockwise( &self, x: f64, y: f64, radius: f64, start_angle: f64, end_angle: f64, anticlockwise: bool, ) -> Result<(), JsValue>

The arc() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn arc_to( &self, x1: f64, y1: f64, x2: f64, y2: f64, radius: f64, ) -> Result<(), JsValue>

The arcTo() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn bezier_curve_to( &self, cp1x: f64, cp1y: f64, cp2x: f64, cp2y: f64, x: f64, y: f64, )

The bezierCurveTo() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn close_path(&self)

The closePath() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn ellipse( &self, x: f64, y: f64, radius_x: f64, radius_y: f64, rotation: f64, start_angle: f64, end_angle: f64, ) -> Result<(), JsValue>

The ellipse() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn ellipse_with_anticlockwise( &self, x: f64, y: f64, radius_x: f64, radius_y: f64, rotation: f64, start_angle: f64, end_angle: f64, anticlockwise: bool, ) -> Result<(), JsValue>

The ellipse() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn line_to(&self, x: f64, y: f64)

The lineTo() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn move_to(&self, x: f64, y: f64)

The moveTo() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn quadratic_curve_to(&self, cpx: f64, cpy: f64, x: f64, y: f64)

The quadraticCurveTo() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

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

The rect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn round_rect(&self, x: f64, y: f64, w: f64, h: f64) -> Result<(), JsValue>

The roundRect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn round_rect_with_f64( &self, x: f64, y: f64, w: f64, h: f64, radii: f64, ) -> Result<(), JsValue>

The roundRect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn round_rect_with_f64_sequence( &self, x: f64, y: f64, w: f64, h: f64, radii: &JsValue, ) -> Result<(), JsValue>

The roundRect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn round_rect_with_dom_point_init_sequence( &self, x: f64, y: f64, w: f64, h: f64, radii: &JsValue, ) -> Result<(), JsValue>

The roundRect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn get_line_dash(&self) -> Array

The getLineDash() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_line_dash(&self, segments: &JsValue) -> Result<(), JsValue>

The setLineDash() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

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

The clearRect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

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

The fillRect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

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

The strokeRect() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn reset(&self)

The reset() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn restore(&self)

The restore() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn save(&self)

The save() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn fill_text(&self, text: &str, x: f64, y: f64) -> Result<(), JsValue>

The fillText() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn fill_text_with_max_width( &self, text: &str, x: f64, y: f64, max_width: f64, ) -> Result<(), JsValue>

The fillText() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn measure_text(&self, text: &str) -> Result<TextMetrics, JsValue>

The measureText() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d, TextMetrics

impl OffscreenCanvasRenderingContext2d

pub fn stroke_text(&self, text: &str, x: f64, y: f64) -> Result<(), JsValue>

The strokeText() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn stroke_text_with_max_width( &self, text: &str, x: f64, y: f64, max_width: f64, ) -> Result<(), JsValue>

The strokeText() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn reset_transform(&self) -> Result<(), JsValue>

The resetTransform() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn rotate(&self, angle: f64) -> Result<(), JsValue>

The rotate() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn scale(&self, x: f64, y: f64) -> Result<(), JsValue>

The scale() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_transform( &self, a: f64, b: f64, c: f64, d: f64, e: f64, f: f64, ) -> Result<(), JsValue>

The setTransform() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn set_transform_with_default_dom_matrix_2d_init( &self, ) -> Result<(), JsValue>

The setTransform() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn transform( &self, a: f64, b: f64, c: f64, d: f64, e: f64, f: f64, ) -> Result<(), JsValue>

The transform() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

impl OffscreenCanvasRenderingContext2d

pub fn translate(&self, x: f64, y: f64) -> Result<(), JsValue>

The translate() method.

MDN Documentation

This API requires the following crate features to be activated: OffscreenCanvasRenderingContext2d

Methods from Deref<Target = Object>

pub fn constructor(&self) -> Function

The constructor property returns a reference to the Object constructor function that created the instance object.

MDN documentation

pub fn has_own_property(&self, property: &JsValue) -> bool

👎Deprecated:

Use Object::hasOwn instead.

The hasOwnProperty() method returns a boolean indicating whether the object has the specified property as its own property (as opposed to inheriting it).

MDN documentation

pub fn is_prototype_of(&self, value: &JsValue) -> bool

The isPrototypeOf() method checks if an object exists in another object’s prototype chain.

MDN documentation

pub fn property_is_enumerable(&self, property: &JsValue) -> bool

The propertyIsEnumerable() method returns a Boolean indicating whether the specified property is enumerable.

MDN documentation

pub fn to_locale_string(&self) -> JsString

The toLocaleString() method returns a string representing the object. This method is meant to be overridden by derived objects for locale-specific purposes.

MDN documentation

pub fn to_string(&self) -> JsString

The toString() method returns a string representing the object.

MDN documentation

pub fn to_js_string(&self) -> JsString

The toString() method returns a string representing the object.

MDN documentation

pub fn value_of(&self) -> Object

The valueOf() method returns the primitive value of the specified object.

MDN documentation

Methods from Deref<Target = JsValue>

pub const NULL: JsValue

pub const UNDEFINED: JsValue

pub const TRUE: JsValue

pub const FALSE: JsValue

pub fn id(&self) -> u64

Get the heap ID for this value.

This is used internally for encoding values to send to JS.

pub fn unchecked_into_f64(&self) -> f64

Returns the value as f64 without type checking. Used by serde-wasm-bindgen for numeric conversions.

pub fn has_type<T>(&self) -> bool

where T: JsCast,

Check if this value is an instance of a specific JS type.

pub fn checked_div(&self, rhs: &JsValue) -> JsValue

Checked division.

pub fn pow(&self, rhs: &JsValue) -> JsValue

Power operation.

pub fn bit_and(&self, rhs: &JsValue) -> JsValue

Bitwise AND.

pub fn bit_or(&self, rhs: &JsValue) -> JsValue

Bitwise OR.

pub fn bit_xor(&self, rhs: &JsValue) -> JsValue

Bitwise XOR.

pub fn bit_not(&self) -> JsValue

Bitwise NOT.

pub fn shl(&self, rhs: &JsValue) -> JsValue

Left shift.

pub fn shr(&self, rhs: &JsValue) -> JsValue

Signed right shift.

pub fn unsigned_shr(&self, rhs: &JsValue) -> u32

Unsigned right shift.

pub fn add(&self, rhs: &JsValue) -> JsValue

Add.

pub fn sub(&self, rhs: &JsValue) -> JsValue

Subtract.

pub fn mul(&self, rhs: &JsValue) -> JsValue

Multiply.

pub fn div(&self, rhs: &JsValue) -> JsValue

Divide.

pub fn rem(&self, rhs: &JsValue) -> JsValue

Remainder.

pub fn neg(&self) -> JsValue

Negate.

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

Less than comparison.

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

Less than or equal comparison.

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

Greater than comparison.

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

Greater than or equal comparison.

pub fn loose_eq(&self, other: &JsValue) -> bool

Loose equality (==).

pub fn is_falsy(&self) -> bool

Check if this value is a falsy value in JavaScript.

pub fn is_truthy(&self) -> bool

Check if this value is a truthy value in JavaScript.

pub fn is_object(&self) -> bool

Check if this value is an object.

pub fn is_function(&self) -> bool

Check if this value is a function.

pub fn is_string(&self) -> bool

Check if this value is a string.

pub fn is_symbol(&self) -> bool

Check if this value is a symbol.

pub fn is_bigint(&self) -> bool

Check if this value is a bigint.

pub fn is_array(&self) -> bool

Check if this value is an Array.

pub fn is_undefined(&self) -> bool

Check if this value is undefined.

pub fn is_null(&self) -> bool

Check if this value is null.

pub fn is_null_or_undefined(&self) -> bool

Check if this value is null or undefined.

pub fn js_typeof(&self) -> JsValue

Get the typeof this value as a string.

pub fn js_in(&self, obj: &JsValue) -> bool

Check if this value has a property with the given name.

pub fn as_bool(&self) -> Option<bool>

Get the value as a bool.

pub fn as_f64(&self) -> Option<f64>

Get the value as an f64.

pub fn as_string(&self) -> Option<String>

Get the value as a string.

pub fn as_debug_string(&self) -> String

Get a debug string representation of the value.

Trait Implementations

impl AsRef<JsValue> for OffscreenCanvasRenderingContext2d

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<Object> for OffscreenCanvasRenderingContext2d

fn as_ref(&self) -> &Object

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<OffscreenCanvasRenderingContext2d> for OffscreenCanvasRenderingContext2d

fn as_ref(&self) -> &OffscreenCanvasRenderingContext2d

Converts this type into a shared reference of the (usually inferred) input type.

impl BatchableResult for OffscreenCanvasRenderingContext2d

fn try_placeholder(batch: &mut Runtime) -> Option<Self>

Returns Some(placeholder) for opaque types that can be batched, None for types that require flushing to get the actual value.

impl BinaryDecode for OffscreenCanvasRenderingContext2d

fn decode(decoder: &mut DecodedData<'_>) -> Result<Self, DecodeError>

impl BinaryEncode for OffscreenCanvasRenderingContext2d

fn encode(self, encoder: &mut EncodedData)

impl Clone for OffscreenCanvasRenderingContext2d

fn clone(&self) -> OffscreenCanvasRenderingContext2d

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OffscreenCanvasRenderingContext2d

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

Formats the value using the given formatter.

impl Deref for OffscreenCanvasRenderingContext2d

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Object

Dereferences the value.

impl EncodeTypeDef for OffscreenCanvasRenderingContext2d

fn encode_type_def(buf: &mut Vec<u8>)

Encode this type’s definition into the buffer. For primitives, this is just the TypeTag byte. For callbacks, this includes param count, param types, and return type.

impl ErasableGeneric for OffscreenCanvasRenderingContext2d

type Repr = JsValue

impl From<JsValue> for OffscreenCanvasRenderingContext2d

fn from(val: JsValue) -> Self

Converts to this type from the input type.

impl From<OffscreenCanvasRenderingContext2d> for JsValue

fn from(val: OffscreenCanvasRenderingContext2d) -> Self

Converts to this type from the input type.

impl From<OffscreenCanvasRenderingContext2d> for Object

fn from(val: OffscreenCanvasRenderingContext2d) -> Object

Converts to this type from the input type.

impl IntoJsGeneric for OffscreenCanvasRenderingContext2d

where OffscreenCanvasRenderingContext2d: JsGeneric,

type JsCanon = OffscreenCanvasRenderingContext2d

fn to_js(self) -> Self::JsCanon

impl JsCast for OffscreenCanvasRenderingContext2d

fn instanceof(__val: &JsValue) -> bool

Check if a JsValue is an instance of this type.

fn unchecked_from_js(val: JsValue) -> Self

Unchecked cast from JsValue to this type.

fn unchecked_from_js_ref(val: &JsValue) -> &Self

Unchecked cast from a JsValue reference to a reference of this type.

fn is_type_of(val: &JsValue) -> bool

Performs a dynamic type check to see whether the JsValue provided is a value of this type.

fn has_type<T>(&self) -> bool

where T: JsCast,

Test whether this JS value has a type T.

fn dyn_into<T>(self) -> Result<T, Self>

where T: JsCast,

Try to cast this value to type T.

fn dyn_ref<T>(&self) -> Option<&T>

where T: JsCast,

Try to get a reference to type T from this value.

fn is_instance_of<T>(&self) -> bool

where T: JsCast,

Test whether this JS value is an instance of the type T.

fn unchecked_into<T>(self) -> T

where T: JsCast,

Unchecked cast to another type.

fn unchecked_ref<T>(&self) -> &T

where T: JsCast,

Unchecked cast to a reference of another type.

impl PartialEq for OffscreenCanvasRenderingContext2d

fn eq(&self, other: &OffscreenCanvasRenderingContext2d) -> 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 Promising for OffscreenCanvasRenderingContext2d

type Resolution = OffscreenCanvasRenderingContext2d

impl Eq for OffscreenCanvasRenderingContext2d

impl StructuralPartialEq for OffscreenCanvasRenderingContext2d

impl UpcastFrom<OffscreenCanvasRenderingContext2d> for JsOption<JsValue>

impl UpcastFrom<OffscreenCanvasRenderingContext2d> for JsOption<Object>

impl UpcastFrom<OffscreenCanvasRenderingContext2d> for JsOption<OffscreenCanvasRenderingContext2d>

impl UpcastFrom<OffscreenCanvasRenderingContext2d> for JsValue

impl UpcastFrom<OffscreenCanvasRenderingContext2d> for Object

impl UpcastFrom<OffscreenCanvasRenderingContext2d> for OffscreenCanvasRenderingContext2d