feat:add get editor image interface

src/editor/core/command/Command.ts

@@ -54,6 +54,7 @@ export class Command {
   private static search: Function
   private static replace: Function
   private static print: Function
+  private static getImage: Function
   private static pageScaleRecovery: Function
   private static pageScaleMinus: Function
   private static pageScaleAdd: Function
@@ -106,6 +107,7 @@ export class Command {
     Command.search = adapt.search.bind(adapt)
     Command.replace = adapt.replace.bind(adapt)
     Command.print = adapt.print.bind(adapt)
+    Command.getImage = adapt.getImage.bind(adapt)
     Command.pageScaleRecovery = adapt.pageScaleRecovery.bind(adapt)
     Command.pageScaleMinus = adapt.pageScaleMinus.bind(adapt)
     Command.pageScaleAdd = adapt.pageScaleAdd.bind(adapt)
@@ -300,6 +302,10 @@ export class Command {
     return Command.print()
   }
 
+  public getImage(): string[] {
+    return Command.getImage()
+  }
+
   // 页面缩放
   public executePageScaleRecovery() {
     return Command.pageScaleRecovery()

src/editor/core/command/CommandAdapt.ts

@@ -1202,6 +1202,10 @@ export class CommandAdapt {
     }
   }
 
+  public getImage(): string[] {
+    return this.draw.getDataURL()
+  }
+
   public pageScaleRecovery() {
     const { scale } = this.options
     if (scale !== 1) {