From 548d6a7c4a1be8c5438b0063e47d71f36a6c2e0e Mon Sep 17 00:00:00 2001
From: Ravi Ranjan <r.ranjanchn@gmail.com>
Date: Wed, 25 Aug 2021 17:07:18 +0530
Subject: [PATCH] added clear all drawing feature

---
 Drawsana/Data model/DrawingOperationStack.swift | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Drawsana/Data model/DrawingOperationStack.swift b/Drawsana/Data model/DrawingOperationStack.swift
index e730e1b..656284f 100644
--- a/Drawsana/Data model/DrawingOperationStack.swift	
+++ b/Drawsana/Data model/DrawingOperationStack.swift	
@@ -63,6 +63,13 @@ public class DrawingOperationStack {
   @objc public func clearRedoStack() {
     redoStack = []
   }
+    
+  @objc public func clearAllDrawing() {
+    for stackOperation in undoStack {
+        stackOperation.revert(drawing: drawing)
+            delegate?.drawingOperationStackDidUndo(self, operation: stackOperation)
+        }
+    }
 }
 
 public protocol DrawingOperationStackDelegate: AnyObject {