avocado-old/packages/graphics/canvas.js

import {RenderTexture} from '@pixi/core';

import {compose} from '@avocado/core';
import {Vector} from '@avocado/math';

import {Image} from './image';

const decorate = compose(
  Vector.Mixin('size', 'width', 'height', {
    default: [0, 0],
  }),
);

export class Canvas extends decorate(class {}) {

  constructor(size = [0, 0]) {
    super();
    this.renderTexture = RenderTexture.create(size[0], size[1]);
  }

  destroy() {
    this.renderTexture.destroy();
  }

  get internal() {
    return this.renderTexture;
  }

  render(renderable, renderer) {
    renderer.render(renderable, this);
  }

  get size() {
    return super.size;
  }

  set size(size) {
    this.renderTexture.resize(size[0], size[1]);
    super.size = size;
  }

  toImage() {
    const image = new Image();
    image.texture = this.renderTexture.clone();
    return image;
  }

}