diff -r cb4e5bbf3a2c -r 3f5e8b0a338e eric6/Graphics/ApplicationDiagramBuilder.py
--- a/eric6/Graphics/ApplicationDiagramBuilder.py Thu May 06 19:46:00 2021 +0200
+++ b/eric6/Graphics/ApplicationDiagramBuilder.py Sat May 08 18:34:08 2021 +0200
@@ -446,3 +446,31 @@
"project_name": self.project.getProjectName(),
"no_modules": self.noModules,
}
+
+ def fromDict(self, version, data):
+ """
+ Public method to populate the class with data persisted by 'toDict()'.
+
+ @param version version of the data
+ @type str
+ @param data dictionary containing the persisted data
+ @type dict
+ @return tuple containing a flag indicating success and an info
+ message in case the diagram belongs to a different project
+ @rtype tuple of (bool, str)
+ """
+ try:
+ self.noModules = data["no_modules"]
+
+ if data["project_name"] != self.project.getProjectName():
+ msg = self.tr(
+ "<p>The diagram belongs to project <b>{0}</b>."
+ " Please open it and try again.</p>"
+ ).format(data["project_name"])
+ return False, msg
+ except KeyError:
+ return False, ""
+
+ self.initialize()
+
+ return True, ""
