From 5e9fdd9682bb41b952eb39b5869cc4dc5fc59ecb Mon Sep 17 00:00:00 2001
From: brenda-br
Date: Mon, 6 Feb 2023 20:56:13 +0530
Subject: Undeletable Line Grips

---
 src/main/python/utils/graphics.py | 11 ++++++++---
 src/main/python/utils/undo.py     | 11 +++++++++--
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/main/python/utils/graphics.py b/src/main/python/utils/graphics.py
index a6910ae..c9dbed7 100644
--- a/src/main/python/utils/graphics.py
+++ b/src/main/python/utils/graphics.py
@@ -105,13 +105,17 @@ class CustomScene(QGraphicsScene):
         # (slot) used to delete all selected items, and add undo action for each of them
         if self.selectedItems():
             for item in self.selectedItems():
+                if(issubclass(item.__class__,shapes.LineGripItem) or issubclass(item.__class__,shapes.SizeGripItem) ):
+                    itemToDelete = item.parentItem()
+                else:
+                    itemToDelete = item 
                 self.count = 0
-                if(issubclass(item.__class__,shapes.NodeItem)):
-                    for i in item.lineGripItems:
+                if(issubclass(itemToDelete.__class__,shapes.NodeItem)):
+                    for i in itemToDelete.lineGripItems:
                         for j in i.lines:
                             self.count+=1
                             self.undoStack.push(deleteCommand(j, self))
-                self.undoStack.push(deleteCommand(item, self))
+                self.undoStack.push(deleteCommand(itemToDelete, self))
             
     def itemMoved(self, movedItem, lastPos):
         #item move event, checks if item is moved
@@ -141,6 +145,7 @@ class CustomScene(QGraphicsScene):
                 self.itemMoved(self.movingItem, self.oldPos)
             self.movingItem = None #clear movingitem reference
         return super(CustomScene, self).mouseReleaseEvent(event)
+    
     def reInsertLines(self):
         currentIndex = self.undoStack.index()
         index = self.count+1     
diff --git a/src/main/python/utils/undo.py b/src/main/python/utils/undo.py
index 2f28964..8e21fe7 100644
--- a/src/main/python/utils/undo.py
+++ b/src/main/python/utils/undo.py
@@ -83,8 +83,15 @@ class deleteCommand(QUndoCommand):
         return startIndex,endIndex
     
     def reconnectLines(self):
-        self.startGrip.lineGripItems[self.indexLGS].lines.append(self.diagramItem)
-        self.endGrip.lineGripItems[self.indexLGE].lines.append(self.diagramItem)
+        try:
+            self.startGrip.lineGripItems[self.indexLGS].lines.append(self.diagramItem)
+        except:
+            pass
+        try:
+            self.endGrip.lineGripItems[self.indexLGE].lines.append(self.diagramItem)
+        except:
+            pass
+        
 class moveCommand(QUndoCommand):
     """
     QUndoCommand for move item event
-- 
cgit