完善

utils/canvas.js

@@ -88,4 +88,16 @@ export default {
 	  // 恢复之前保存的绘图上下文
 	  ctx.restore();
 	},
+	calculateTotalWidth (ctx, segments) {
+	  let totalWidth = 0;
+	  segments.forEach((segment) => {
+	    // console.log('segment', segment);
+	    if (segment) {
+	      ctx.font = `${segment.fontWeight} ${segment.fontSize}px Arial`;
+	      totalWidth += ((ctx.measureText(segment.content).width) + (segment.space || 0));
+	    }
+	  });
+	
+	  return totalWidth;
+	},
 }