合并画布

src/component/Canvas/CanvasEditor/managers/CanvasManager.js

@@ -659,12 +659,15 @@ export class CanvasManager {
       console.error("图层管理器未设置，无法更改固定图层图片");
       return;
     }
+
     const command = new ChangeFixedImageCommand({
       canvas: this.canvas,
       layerManager: this.layerManager,
       imageUrl: imageUrl,
       targetLayerType: options.targetLayerType || "fixed", // background/fixed
-      options: options,
+      canvasWidth: this.canvasWidth,
+      canvasHeight: this.canvasHeight,
+      ...options,
     });
 
     command.undoable =