Struct web_sys::CanvasRenderingContext2d

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

Implementations§

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 canvas(&self) -> Option<HtmlCanvasElement>

The canvas getter

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

impl CanvasRenderingContext2d

pub fn global_alpha(&self) -> f64

The globalAlpha getter

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

impl CanvasRenderingContext2d

pub fn set_global_alpha(&self, global_alpha: f64)

The globalAlpha setter

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

impl CanvasRenderingContext2d

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

The globalCompositeOperation getter

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

impl CanvasRenderingContext2d

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

The globalCompositeOperation setter

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

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 stroke_style(&self) -> JsValue

The strokeStyle getter

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

impl CanvasRenderingContext2d

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

The strokeStyle setter

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

impl CanvasRenderingContext2d

pub fn fill_style(&self) -> JsValue

The fillStyle getter

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

impl CanvasRenderingContext2d

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

The fillStyle setter

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

impl CanvasRenderingContext2d

pub fn filter(&self) -> String

The filter getter

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

impl CanvasRenderingContext2d

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

The filter setter

This API requires the following crate features to be activated: 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 image_smoothing_enabled(&self) -> bool

The imageSmoothingEnabled getter

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

impl CanvasRenderingContext2d

pub fn set_image_smoothing_enabled(&self, image_smoothing_enabled: bool)

The imageSmoothingEnabled setter

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

impl CanvasRenderingContext2d

pub fn line_width(&self) -> f64

The lineWidth getter

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

impl CanvasRenderingContext2d

pub fn set_line_width(&self, line_width: f64)

The lineWidth setter

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

impl CanvasRenderingContext2d

pub fn line_cap(&self) -> String

The lineCap getter

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

impl CanvasRenderingContext2d

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

The lineCap setter

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

impl CanvasRenderingContext2d

pub fn line_join(&self) -> String

The lineJoin getter

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

impl CanvasRenderingContext2d

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

The lineJoin setter

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

impl CanvasRenderingContext2d

pub fn miter_limit(&self) -> f64

The miterLimit getter

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

impl CanvasRenderingContext2d

pub fn set_miter_limit(&self, miter_limit: f64)

The miterLimit setter

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

impl CanvasRenderingContext2d

pub fn line_dash_offset(&self) -> f64

The lineDashOffset getter

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

impl CanvasRenderingContext2d

pub fn set_line_dash_offset(&self, line_dash_offset: f64)

The lineDashOffset setter

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 shadow_offset_x(&self) -> f64

The shadowOffsetX getter

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

impl CanvasRenderingContext2d

pub fn set_shadow_offset_x(&self, shadow_offset_x: f64)

The shadowOffsetX setter

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

impl CanvasRenderingContext2d

pub fn shadow_offset_y(&self) -> f64

The shadowOffsetY getter

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

impl CanvasRenderingContext2d

pub fn set_shadow_offset_y(&self, shadow_offset_y: f64)

The shadowOffsetY setter

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

impl CanvasRenderingContext2d

pub fn shadow_blur(&self) -> f64

The shadowBlur getter

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

impl CanvasRenderingContext2d

pub fn set_shadow_blur(&self, shadow_blur: f64)

The shadowBlur setter

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

impl CanvasRenderingContext2d

pub fn shadow_color(&self) -> String

The shadowColor getter

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

impl CanvasRenderingContext2d

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

The shadowColor setter

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 font(&self) -> String

The font getter

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

impl CanvasRenderingContext2d

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

The font setter

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

impl CanvasRenderingContext2d

pub fn text_align(&self) -> String

The textAlign getter

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

impl CanvasRenderingContext2d

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

The textAlign setter

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

impl CanvasRenderingContext2d

pub fn text_baseline(&self) -> String

The textBaseline getter

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

impl CanvasRenderingContext2d

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

The textBaseline setter

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

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

Methods from Deref<Target = 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.

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.

Trait Implementations§

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, extra: &mut dyn Stack) -> Self

Recover a Self from Self::Abi. 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, extra: &mut dyn Stack) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary. 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, extra: &mut dyn Stack) -> 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 is_instance_of<T>(&self) -> boolwhere
T: JsCast,

Test whether this JS value is an instance of the 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) -> Twhere
T: JsCast,

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

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

Performs a zero-cost unchecked cast into a reference to the specified 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<'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 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 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, extra: &mut dyn Stack) -> Self::Anchor

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

impl WasmDescribe for CanvasRenderingContext2d

fn describe()

Auto Trait Implementations§

impl UnwindSafe for CanvasRenderingContext2d

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere
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 Twhere
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 Twhere
T: IntoWasmAbi,

type Abi = <T as IntoWasmAbi>::Abi

Same as IntoWasmAbi::Abi

fn return_abi(self, extra: &mut dyn Stack) -> <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 Twhere
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 Twhere
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.

impl<T, U> TryInto for Twhere
U: TryFrom<T>,