Struct web_sys::CanvasRenderingContext2d

This API requires the following crate features to be activated: CanvasRenderingContext2d

Implementations

impl CanvasRenderingContext2d

pub fn canvas(&self) -> Option<HtmlCanvasElement>

Getter for the canvas field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

impl CanvasRenderingContext2d

pub fn global_alpha(&self) -> f64

Getter for the globalAlpha field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_global_alpha(&self, value: f64)

Setter for the globalAlpha field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Getter for the globalCompositeOperation field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the globalCompositeOperation field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn stroke_style(&self) -> JsValue

Getter for the strokeStyle field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the strokeStyle field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn fill_style(&self) -> JsValue

Getter for the fillStyle field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the fillStyle field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn filter(&self) -> String

Getter for the filter field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the filter field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn image_smoothing_enabled(&self) -> bool

Getter for the imageSmoothingEnabled field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_image_smoothing_enabled(&self, value: bool)

Setter for the imageSmoothingEnabled field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn line_width(&self) -> f64

Getter for the lineWidth field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_line_width(&self, value: f64)

Setter for the lineWidth field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn line_cap(&self) -> String

Getter for the lineCap field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the lineCap field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn line_join(&self) -> String

Getter for the lineJoin field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the lineJoin field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn miter_limit(&self) -> f64

Getter for the miterLimit field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_miter_limit(&self, value: f64)

Setter for the miterLimit field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn line_dash_offset(&self) -> f64

Getter for the lineDashOffset field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_line_dash_offset(&self, value: f64)

Setter for the lineDashOffset field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn shadow_offset_x(&self) -> f64

Getter for the shadowOffsetX field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_shadow_offset_x(&self, value: f64)

Setter for the shadowOffsetX field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn shadow_offset_y(&self) -> f64

Getter for the shadowOffsetY field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_shadow_offset_y(&self, value: f64)

Setter for the shadowOffsetY field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn shadow_blur(&self) -> f64

Getter for the shadowBlur field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn set_shadow_blur(&self, value: f64)

Setter for the shadowBlur field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn shadow_color(&self) -> String

Getter for the shadowColor field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the shadowColor field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn font(&self) -> String

Getter for the font field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the font field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn text_align(&self) -> String

Getter for the textAlign field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the textAlign field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn text_baseline(&self) -> String

Getter for the textBaseline field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

Setter for the textBaseline field of this object.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn draw_window(
 &self,
 window: &Window,
 x: f64,
 y: f64,
 w: f64,
 h: f64,
 bg_color: &str
) -> Result<(), JsValue>

The drawWindow() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Window

impl CanvasRenderingContext2d

pub fn draw_window_with_flags(
 &self,
 window: &Window,
 x: f64,
 y: f64,
 w: f64,
 h: f64,
 bg_color: &str,
 flags: u32
) -> Result<(), JsValue>

The drawWindow() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Window

impl CanvasRenderingContext2d

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

The drawImage() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlImageElement

impl CanvasRenderingContext2d

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

The drawImage() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, SvgImageElement

impl CanvasRenderingContext2d

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

The drawImage() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

impl CanvasRenderingContext2d

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

The drawImage() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlVideoElement

impl CanvasRenderingContext2d

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

The drawImage() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageBitmap

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlImageElement

impl CanvasRenderingContext2d

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

The drawImage() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, SvgImageElement

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlVideoElement

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageBitmap

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlImageElement

impl CanvasRenderingContext2d

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

The drawImage() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, SvgImageElement

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlCanvasElement

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HtmlVideoElement

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageBitmap

impl CanvasRenderingContext2d

pub fn begin_path(&self)

The beginPath() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn clip(&self)

The clip() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn clip_with_canvas_winding_rule(&self, winding: CanvasWindingRule)

The clip() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule

impl CanvasRenderingContext2d

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

The clip() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

impl CanvasRenderingContext2d

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

The clip() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule, Path2d

impl CanvasRenderingContext2d

pub fn fill(&self)

The fill() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn fill_with_canvas_winding_rule(&self, winding: CanvasWindingRule)

The fill() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule

impl CanvasRenderingContext2d

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

The fill() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

impl CanvasRenderingContext2d

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

The fill() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule, Path2d

impl CanvasRenderingContext2d

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

The isPointInPath() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The isPointInPath() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule

impl CanvasRenderingContext2d

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

The isPointInPath() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d, CanvasWindingRule, Path2d

impl CanvasRenderingContext2d

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

The isPointInStroke() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The isPointInStroke() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

impl CanvasRenderingContext2d

pub fn stroke(&self)

The stroke() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The stroke() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Path2d

impl CanvasRenderingContext2d

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

The createLinearGradient() method.

This API requires the following crate features to be activated: CanvasGradient, CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The createPattern() method.

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, HtmlImageElement

impl CanvasRenderingContext2d

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

The createPattern() method.

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, SvgImageElement

impl CanvasRenderingContext2d

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

The createPattern() method.

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, HtmlCanvasElement

impl CanvasRenderingContext2d

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

The createPattern() method.

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, HtmlVideoElement

impl CanvasRenderingContext2d

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

The createPattern() method.

This API requires the following crate features to be activated: CanvasPattern, CanvasRenderingContext2d, ImageBitmap

impl CanvasRenderingContext2d

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

The createRadialGradient() method.

This API requires the following crate features to be activated: CanvasGradient, CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The addHitRegion() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn add_hit_region_with_options(
&self,
options: &HitRegionOptions
) -> Result<(), JsValue>

The addHitRegion() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, HitRegionOptions

impl CanvasRenderingContext2d

pub fn clear_hit_regions(&self)

The clearHitRegions() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn remove_hit_region(&self, id: &str)

The removeHitRegion() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The createImageData() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

impl CanvasRenderingContext2d

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

The createImageData() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

impl CanvasRenderingContext2d

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

The getImageData() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

impl CanvasRenderingContext2d

pub fn put_image_data(
 &self,
 imagedata: &ImageData,
 dx: f64,
 dy: f64
) -> Result<(), JsValue>

The putImageData() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

impl CanvasRenderingContext2d

pub fn put_image_data_with_dirty_x_and_dirty_y_and_dirty_width_and_dirty_height(
 &self,
 imagedata: &ImageData,
 dx: f64,
 dy: f64,
 dirty_x: f64,
 dirty_y: f64,
 dirty_width: f64,
 dirty_height: f64
) -> Result<(), JsValue>

The putImageData() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, ImageData

impl CanvasRenderingContext2d

pub fn get_line_dash(&self) -> Array

The getLineDash() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The setLineDash() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The arc() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The arcTo() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The bezierCurveTo() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn close_path(&self)

The closePath() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The lineTo() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The moveTo() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The quadraticCurveTo() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The rect() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The clearRect() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The fillRect() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The strokeRect() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn restore(&self)

The restore() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn save(&self)

The save() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The fillText() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The fillText() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The measureText() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, TextMetrics

impl CanvasRenderingContext2d

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

The strokeText() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The strokeText() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The getTransform() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, DomMatrix

impl CanvasRenderingContext2d

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

The resetTransform() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The rotate() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The scale() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The setTransform() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The transform() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

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

The translate() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d

impl CanvasRenderingContext2d

pub fn draw_custom_focus_ring(&self, element: &Element) -> bool

The drawCustomFocusRing() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Element

impl CanvasRenderingContext2d

pub fn draw_focus_if_needed(&self, element: &Element) -> Result<(), JsValue>

The drawFocusIfNeeded() method.

This API requires the following crate features to be activated: CanvasRenderingContext2d, Element

impl CanvasRenderingContext2d

pub const DRAWWINDOW_DRAW_CARET: u32 = 1u32

The CanvasRenderingContext2D.DRAWWINDOW_DRAW_CARET const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

pub const DRAWWINDOW_DO_NOT_FLUSH: u32 = 2u32

The CanvasRenderingContext2D.DRAWWINDOW_DO_NOT_FLUSH const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

pub const DRAWWINDOW_DRAW_VIEW: u32 = 4u32

The CanvasRenderingContext2D.DRAWWINDOW_DRAW_VIEW const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

pub const DRAWWINDOW_USE_WIDGET_LAYERS: u32 = 8u32

The CanvasRenderingContext2D.DRAWWINDOW_USE_WIDGET_LAYERS const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

pub const DRAWWINDOW_ASYNC_DECODE_IMAGES: u32 = 16u32

The CanvasRenderingContext2D.DRAWWINDOW_ASYNC_DECODE_IMAGES const.

This API requires the following crate features to be activated: CanvasRenderingContext2d

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.

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

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

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

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

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

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

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.

pub fn to_string(&self) -> JsString

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

pub fn value_of(&self) -> Object

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

Methods from Deref<Target = JsValue>

pub const NULL: JsValue = JsValue{idx: JSIDX_NULL, _marker: marker::PhantomData,}

pub const UNDEFINED: JsValue = JsValue{idx: JSIDX_UNDEFINED, _marker: marker::PhantomData,}

pub const TRUE: JsValue = JsValue{idx: JSIDX_TRUE, _marker: marker::PhantomData,}

pub const FALSE: JsValue = JsValue{idx: JSIDX_FALSE, _marker: marker::PhantomData,}

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

Returns the f64 value of this JS value if it’s an instance of a number.

If this JS value is not an instance of a number then this returns None.

pub fn is_string(&self) -> bool

Tests whether this JS value is a JS string.

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

If this JS value is a string value, this function copies the JS string value into wasm linear memory, encoded as UTF-8, and returns it as a Rust String.

To avoid the copying and re-encoding, consider the JsString::try_from() function from js-sys instead.

If this JS value is not an instance of a string or if it’s not valid utf-8 then this returns None.

JavaScript strings in general are encoded as UTF-16, but Rust strings are encoded as UTF-8. This can cause the Rust string to look a bit different than the JS string sometimes. For more details see the documentation about the str type which contains a few caveats about the encodings.

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

Returns the bool value of this JS value if it’s an instance of a boolean.

If this JS value is not an instance of a boolean then this returns None.

pub fn is_null(&self) -> bool

Tests whether this JS value is null

pub fn is_undefined(&self) -> bool

Tests whether this JS value is undefined

pub fn is_symbol(&self) -> bool

Tests whether the type of this JS value is symbol

pub fn is_object(&self) -> bool

Tests whether typeof self == "object" && self !== null.

pub fn is_function(&self) -> bool

Tests whether the type of this JS value is function.

pub fn is_bigint(&self) -> bool

Tests whether the type of this JS value is bigint.

pub fn js_typeof(&self) -> JsValue

Applies the unary typeof JS operator on a JsValue.

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

Applies the binary in JS operator on the two JsValues.

pub fn is_truthy(&self) -> bool

Tests whether the value is “truthy”.

pub fn is_falsy(&self) -> bool

Tests whether the value is “falsy”.

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

Compare two JsValues for equality, using the == operator in JS.

pub fn bit_not(&self) -> JsValue

Applies the unary ~ JS operator on a JsValue.

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

Applies the binary >>> JS operator on the two JsValues.

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

Applies the binary / JS operator on two JsValues, catching and returning any RangeError thrown.

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

Applies the binary ** JS operator on the two JsValues.

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

Applies the binary < JS operator on the two JsValues.

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

Applies the binary <= JS operator on the two JsValues.

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

Applies the binary >= JS operator on the two JsValues.

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

Applies the binary > JS operator on the two JsValues.

pub fn unchecked_into_f64(&self) -> f64

Applies the unary + JS operator on a JsValue. Can throw.

Trait Implementations

impl AsRef<CanvasRenderingContext2d> for CanvasRenderingContext2d

fn as_ref(&self) -> &CanvasRenderingContext2d

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

impl AsRef<JsValue> for CanvasRenderingContext2d

fn as_ref(&self) -> &JsValue

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

impl AsRef<Object> for CanvasRenderingContext2d

fn as_ref(&self) -> &Object

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

impl Clone for CanvasRenderingContext2d

fn clone(&self) -> CanvasRenderingContext2d

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for CanvasRenderingContext2d

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

Formats the value using the given formatter. Read more

impl Deref for CanvasRenderingContext2d

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Object

Dereferences the value.

impl From<CanvasRenderingContext2d> for JsValue

fn from(obj: CanvasRenderingContext2d) -> JsValue

Converts to this type from the input type.

impl From<CanvasRenderingContext2d> for Object

fn from(obj: CanvasRenderingContext2d) -> Object

Converts to this type from the input type.

impl From<JsValue> for CanvasRenderingContext2d

fn from(obj: JsValue) -> CanvasRenderingContext2d

Converts to this type from the input type.

impl FromWasmAbi for CanvasRenderingContext2d

type Abi = <JsValue as FromWasmAbi>::Abi

The wasm ABI type that this converts from when coming back out from the ABI boundary. Read more

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

Recover a Self from Self::Abi. Read more

impl IntoWasmAbi for CanvasRenderingContext2d

type Abi = <JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary. Read more

fn into_abi(self) -> Self::Abi

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

impl<'a> IntoWasmAbi for &'a CanvasRenderingContext2d

type Abi = <&'a JsValue as IntoWasmAbi>::Abi

The wasm ABI type that this converts into when crossing the ABI boundary. Read more

fn into_abi(self) -> Self::Abi

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

impl JsCast for CanvasRenderingContext2d

fn instanceof(val: &JsValue) -> bool

Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type. Read more

fn unchecked_from_js(val: JsValue) -> Self

Performs a zero-cost unchecked conversion from a JsValue into an instance of Self Read more

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

Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self. Read more

fn has_type<T>(&self) -> bool where
T: JsCast,

Test whether this JS value has a type T. Read more

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

Performs a dynamic cast (checked at runtime) of this value into the target type T. Read more

fn dyn_ref<T>(&self) -> Option<&T> where
T: JsCast,

Performs a dynamic cast (checked at runtime) of this value into the target type T. Read more

fn unchecked_into<T>(self) -> T where
T: JsCast,

Performs a zero-cost unchecked cast into the specified type. Read more

fn unchecked_ref<T>(&self) -> &T where
T: JsCast,

Performs a zero-cost unchecked cast into a reference to the specified type. Read more

fn is_instance_of<T>(&self) -> bool where
T: JsCast,

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

fn is_type_of(val: &JsValue) -> bool

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

impl OptionFromWasmAbi for CanvasRenderingContext2d

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. Read more

impl OptionIntoWasmAbi for CanvasRenderingContext2d

fn none() -> Self::Abi

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

impl<'a> OptionIntoWasmAbi for &'a CanvasRenderingContext2d

fn none() -> Self::Abi

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

impl PartialEq<CanvasRenderingContext2d> for CanvasRenderingContext2d

fn eq(&self, other: &CanvasRenderingContext2d) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &CanvasRenderingContext2d) -> bool

This method tests for !=.

impl RefFromWasmAbi for CanvasRenderingContext2d

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<CanvasRenderingContext2d>

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. Read more

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

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

impl StructuralPartialEq for CanvasRenderingContext2d

Auto Trait Implementations

impl RefUnwindSafe for CanvasRenderingContext2d

impl !Send for CanvasRenderingContext2d

impl !Sync for CanvasRenderingContext2d

impl Unpin for CanvasRenderingContext2d

impl UnwindSafe for CanvasRenderingContext2d

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ReturnWasmAbi for T where
T: IntoWasmAbi,

type Abi = <T as IntoWasmAbi>::Abi

Same as IntoWasmAbi::Abi

fn return_abi(self) -> <T as ReturnWasmAbi>::Abi

Same as IntoWasmAbi::into_abi, except that it may throw and never return in the case of Err. Read more

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.