Struct Renderer 

pub struct Renderer { /* private fields */ }

High-level WebGL2 renderer for terminal-style applications.

The Renderer manages the WebGL2 rendering context, canvas, and provides a simplified interface for rendering drawable objects. It handles frame management, viewport setup, and coordinate system transformations.

Implementations

impl Renderer

pub fn create( canvas_id: &str, auto_resize_canvas_css: bool, ) -> Result<Self, Error>

Creates a new renderer by querying for a canvas element with the given ID.

pub fn canvas_padding_color(self, color: u32) -> Self

Sets the background color for the canvas area outside the terminal grid.

pub fn create_with_canvas( canvas: HtmlCanvasElement, auto_resize_canvas_css: bool, ) -> Result<Self, Error>

Creates a new renderer from an existing HTML canvas element.

pub fn resize(&mut self, width: i32, height: i32)

Resizes the canvas and updates the viewport.

pub fn clear(&mut self, r: f32, g: f32, b: f32)

Clears the framebuffer with the specified color.

pub fn begin_frame(&mut self)

Begins a new rendering frame.

pub fn render(&mut self, drawable: &impl Drawable) -> Result<(), Error>

Renders a drawable object.

pub fn end_frame(&mut self)

Ends the current rendering frame.

pub fn gl(&self) -> &Context

Returns a reference to the glow rendering context.

pub fn canvas(&self) -> &HtmlCanvasElement

Returns a reference to the HTML canvas element.

pub fn canvas_size(&self) -> (i32, i32)

Returns the current canvas dimensions as a tuple.

pub fn logical_size(&self) -> (i32, i32)

Returns the logical size of the canvas in pixels.

pub fn physical_size(&self) -> (i32, i32)

Returns the physical size of the canvas in pixels, taking into account the device pixel ratio.

pub fn is_context_lost(&self) -> bool

Checks if the WebGL context has been lost.

pub fn restore_context(&mut self) -> Result<(), Error>

Restores the WebGL context after a context loss event.

Trait Implementations

impl Debug for Renderer

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

Formats the value using the given formatter.