tav-media/lib/libpag/src/wechat/scaler-context.js

Cross platform media editing framework

import { ScalerContext as NativeScaleContext } from '../core/scaler-context';
import { getCanvas2D } from './canvas';
import { NativeImage } from './native-image';
export class ScalerContext extends NativeScaleContext {
    generateImage(text, bounds) {
        const canvas = getCanvas2D();
        canvas.width = bounds.right - bounds.left;
        canvas.height = bounds.bottom - bounds.top;
        const context = canvas.getContext('2d');
        context.font = this.fontString();
        context.fillText(text, -bounds.left, -bounds.top);
        return new NativeImage(canvas, true);
    }
    loadCanvas() {
        if (!ScalerContext.canvas) {
            ScalerContext.setCanvas(getCanvas2D());
            ScalerContext.canvas.width = 10;
            ScalerContext.canvas.height = 10;
            ScalerContext.setContext(ScalerContext.canvas.getContext('2d'));
        }
    }
}