Mercurial Repositories > eric / file diff

--- a/eric6/Graphics/ClassItem.py	Thu May 06 19:46:00 2021 +0200
+++ b/eric6/Graphics/ClassItem.py	Sat May 08 18:34:08 2021 +0200
@@ -139,7 +139,8 @@
         self.external = external
         self.noAttrs = noAttrs
         
-        scene.addItem(self)
+        if scene:
+            scene.addItem(self)
         
         if self.model:
             self.__createTexts()
@@ -398,10 +399,44 @@
         @rtype dict
         """
         return {
+            "id": self.getId(),
+            "x": self.x(),
+            "y": self.y(),
+            "type": self.getItemType(),
             "is_external": self.external,
             "no_attributes": self.noAttrs,
-            "name": self.model.getName(),
+            "model_name": self.model.getName(),
             "attributes": self.model.getInstanceAttributes(),
             "methods": self.model.getMethods(),
             "class_attributes": self.model.getClassAttributes(),
         }
+    
+    @classmethod
+    def fromDict(cls, data, colors=None):
+        """
+        Class method to create a class item from persisted data.
+        
+        @param data dictionary containing the persisted data as generated
+            by toDict()
+        @type dict
+        @param colors tuple containing the foreground and background colors
+        @type tuple of (QColor, QColor)
+        @return created class item
+        @rtype ClassItem
+        """
+        try:
+            model = ClassModel(data["model_name"],
+                               data["methods"],
+                               data["attributes"],
+                               data["class_attributes"])
+            itm = cls(model=model,
+                      external=data["is_external"],
+                      x=0,
+                      y=0,
+                      noAttrs=data["no_attributes"],
+                      colors=colors)
+            itm.setPos(data["x"], data["y"])
+            itm.setId(data["id"])
+            return itm
+        except KeyError:
+            return None