Struct DrawContext 

pub struct DrawContext<'a> { /* private fields */ }

A context for drawing on a canvas (character-based)

Implementations

impl<'a> DrawContext<'a>

pub fn new(buffer: &'a mut Buffer, area: Rect) -> Self

Create a new draw context

pub fn width(&self) -> u16

Get canvas width

pub fn height(&self) -> u16

Get canvas height

pub fn area(&self) -> Rect

Get canvas area

pub fn set(&mut self, x: u16, y: u16, ch: char)

Set a character at position

pub fn set_styled( &mut self, x: u16, y: u16, ch: char, fg: Option<Color>, bg: Option<Color>, )

Set a character with style at position

pub fn set_cell(&mut self, x: u16, y: u16, cell: Cell)

Set a cell at position

pub fn hline( &mut self, x: u16, y: u16, length: u16, ch: char, fg: Option<Color>, )

Draw a horizontal line

pub fn vline( &mut self, x: u16, y: u16, length: u16, ch: char, fg: Option<Color>, )

Draw a vertical line

pub fn rect( &mut self, x: u16, y: u16, width: u16, height: u16, fg: Option<Color>, )

Draw a rectangle outline

pub fn fill_rect( &mut self, rect: Rect, ch: char, fg: Option<Color>, bg: Option<Color>, )

Fill a rectangle

pub fn bar(&mut self, x: u16, y: u16, width: u16, fg: Color, bg: Option<Color>)

Draw a filled bar (for Gantt charts, progress bars, etc.)

pub fn partial_bar(&mut self, x: u16, y: u16, width: f32, fg: Color)

Draw a partial bar (for fractional values)

pub fn text(&mut self, x: u16, y: u16, s: &str, fg: Option<Color>)

Draw text at position

pub fn text_bold(&mut self, x: u16, y: u16, s: &str, fg: Option<Color>)

Draw bold text at position

pub fn clear(&mut self)

Clear the canvas

pub fn point(&mut self, x: u16, y: u16, fg: Color)

Draw a point/dot

pub fn line( &mut self, x0: u16, y0: u16, x1: u16, y1: u16, ch: char, fg: Option<Color>, )

Draw a line between two points (Bresenham’s algorithm)