Make edition transaction where actually nothing was changed as empty one and do not...

[modules/shaper.git] / src / Model / Model_Session.h

diff --git a/src/Model/Model_Session.h b/src/Model/Model_Session.h
index ebfef43d0f943958ea15e15b935723e3fa6c77da..1e200f40e0bc03836bfa608b8b98b891ff529a65 100644 (file)
--- a/src/Model/Model_Session.h
+++ b/src/Model/Model_Session.h
@@ -31,6 +31,7 @@ class Model_Session : public ModelAPI_Session, public Events_Listener
   std::string myCurrentPluginName;  ///< name of the plugin that must be loaded currently
   std::shared_ptr<ModelAPI_Document> myCurrentDoc;  ///< current working document
   bool myCheckTransactions;  ///< if true, generates error if document is updated outside of transaction
+  bool myOperationAttachedToNext; ///< the current operation must be committed twice, with nested
  public:
 
   //! Loads the OCAF document from the file.
@@ -47,8 +48,12 @@ class Model_Session : public ModelAPI_Session, public Events_Listener
   //! Closes all documents
   MODEL_EXPORT virtual void closeAll();
 
-  //! Starts a new operation (opens a tansaction)
-  MODEL_EXPORT virtual void startOperation(const std::string& theId = "");
+  //! Starts a new operation (opens a transaction)
+  //! \param theId string-identifier of the started transaction
+  //! \param theAttachedToNested if it is true, it means that this transaction is attached to the nested 
+  //!          where it is located and will be committed on the next commit with the nested
+  MODEL_EXPORT virtual void startOperation(
+    const std::string& theId = "", const bool theAttachedToNested = false);
   //! Finishes the previously started operation (closes the transaction)
   MODEL_EXPORT virtual void finishOperation();
   //! Aborts the operation 
@@ -90,6 +95,9 @@ class Model_Session : public ModelAPI_Session, public Events_Listener
   /// Returns all the opened documents of the session (without postponed)
   MODEL_EXPORT virtual std::list<std::shared_ptr<ModelAPI_Document> > allOpenedDocuments();
 
+  /// Returns true if document is not loaded yet
+  MODEL_EXPORT virtual bool isLoadByDemand(const std::string theDocID);
+
   /// Registers the plugin that creates features.
   /// It is obligatory for each plugin to call this function on loading to be found by 
   /// the plugin manager on call of the feature)
@@ -98,7 +106,7 @@ class Model_Session : public ModelAPI_Session, public Events_Listener
   /// Processes the configuration file reading
   MODEL_EXPORT virtual void processEvent(const std::shared_ptr<Events_Message>& theMessage);
 
-  /// Copies the document to the new one wit hthe given id
+  /// Copies the document to the new one with the given id
   MODEL_EXPORT virtual std::shared_ptr<ModelAPI_Document> copy(
       std::shared_ptr<ModelAPI_Document> theSource, std::string theID);
 
@@ -114,6 +122,9 @@ class Model_Session : public ModelAPI_Session, public Events_Listener
   /// Is called only once, on startup of the application
   Model_Session();
 
+  /// Returns the global identifier of the current transaction (needed for the update algo)
+  MODEL_EXPORT virtual int transactionID();
+
  protected:
   /// Loads (if not done yet) the information about the features and plugins
   void LoadPluginsInfo();