feat: add before upload params

feat: add before upload params

Author: noonnightstorm

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-visual-modeling",
-  "version": "1.1.3",
+  "version": "1.1.4",
   "description": "一个基于React的数据可视化建模的DAG图，适用于UML，数据库建模，数据仓库建设等业务",
   "main": "dist/index.js",
   "pack": "pack/index.js",

src/index.tsx

@@ -173,7 +173,10 @@ export default class TableBuilding extends React.Component<ComProps, any> {
       )
     );
 
-    beforeLoad({Arrow});
+    beforeLoad({
+      canvas: this.canvas,
+      Arrow
+    });
 
     this.canvas.draw(result, () => {
       this.props.onLoaded && this.props.onLoaded(this.canvas);