当前选中的逻辑区段不能删除

src/drawApp/index.ts

@@ -9,6 +9,7 @@ import {
   GraphicApp,
   GraphicData,
   JlDrawApp,
+  JlGraphic,
   KeyListener,
 } from 'src/jl-graphic';
 import { ContextMenu } from 'src/jl-graphic/ui/ContextMenu';
@@ -77,6 +78,7 @@ import {
   LogicSectionTemplate,
 } from 'src/graphics/logicSection/LogicSection';
 import { LogicSectionData } from './graphics/LogicSectionInteraction';
+import { Notify } from 'quasar';
 
 // export function fromStoragePoint(p: graphicData.Point): Point {
 //   return new Point(p.x, p.y);
@@ -233,8 +235,18 @@ export function initDrawApp(dom: HTMLElement): JlDrawApp {
     ];
     DrawSignalInteraction.init(app);
   }
-
-  app.setOptions({ drawAssistants: drawAssistants });
+  const isSupportDeletion = (g: JlGraphic) => {
+    if (g.type === LogicSection.Type && g.selected) {
+      Notify.create({
+        type: 'warning',
+        message: '逻辑区段不支持删除',
+        timeout: 1000,
+      });
+      return false;
+    }
+    return true;
+  };
+  app.setOptions({ drawAssistants: drawAssistants, isSupportDeletion });
 
   // 画布右键菜单
   app.registerMenu(DefaultCanvasMenu);