Struct Canvas 

pub struct Canvas { /* private fields */ }

A box of a given size that draws whatever its closure appends to the scene. The closure receives the box’s absolute frame in logical pixels.

use ravenrs_core::{Color, Quad};
use ravenrs_widgets::Canvas;

let bars = Canvas::new(|frame, scene| {
    for (i, v) in [0.4_f32, 0.9, 0.6].iter().enumerate() {
        let h = frame.height() * v;
        let x = frame.x() + i as f32 * 24.0;
        let bar = ravenrs_core::Rect::new(x, frame.max_y() - h, 16.0, h);
        scene.push_quad(Quad::new(bar, Color::hex(0x4c66ee)).radius(4.0));
    }
})
.size(72.0, 48.0);

Implementations

impl Canvas

pub fn new(draw: impl Fn(Rect, &mut Scene) + 'static) -> Self

A canvas drawn by draw, called on every paint with the absolute frame.

pub fn size(self, width: f32, height: f32) -> Self

Fixed size in logical pixels.

pub fn grow(self, grow: f32) -> Self

Fills the free space along the parent stack’s axis.

Trait Implementations

impl Debug for Canvas

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

Formats the value using the given formatter.

impl View for Canvas

fn build(&self, cx: &mut BuildCx<'_>) -> NodeId

Creates this view’s node for the current build.

fn type_name(&self) -> &'static str

The name the diagnostics panel shows this view’s cost under.