lazy-widgets/dist/widgets/Background.js

Typescript retained mode GUI for the HTML canvas API

import { SingleParentXMLInputConfig } from '../xml/SingleParentXMLInputConfig.js';
import { BaseContainer } from './BaseContainer.js';
/**
 * A container widget that adds a background color.
 *
 * @category Widget
 */
export class Background extends BaseContainer {
    constructor(child, properties) {
        super(child, properties);
    }
    onThemeUpdated(property = null) {
        super.onThemeUpdated(property);
        if (property === null || property === 'canvasFill') {
            this.markWholeAsDirty();
        }
    }
    handlePainting(dirtyRects) {
        // Paint brackground
        const ctx = this.viewport.context;
        ctx.save();
        ctx.fillStyle = this.canvasFill;
        ctx.fillRect(this.x, this.y, this.width, this.height);
        ctx.restore();
        super.handlePainting(dirtyRects);
    }
}
Background.autoXML = {
    name: 'background',
    inputConfig: SingleParentXMLInputConfig
};
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