C++ (Cpp) History::execute_undo Examples

Example #1

File: TestHistory.cpp Project: ohmtech/flip-public

void  TestHistory::run_015 (const char * path_0)
{
   remove (path_0);

   Document document (Model::use (), 123456789UL, 'appl', 'gui ');

   {
      History <HistoryStoreFile> history (document, path_0);

      Root & root = document.root <Root> ();

      root._a._int = 2LL;
      root._a._float = 3.5;

      auto tx = document.commit ();
      history.add_undo_step (tx);
   }

   {
      History <HistoryStoreFile> history (document, path_0);

      Root & root = document.root <Root> ();

      bool ok_flag = history.execute_undo ();
      flip_TEST (ok_flag);

      flip_TEST (root._a._int == 0LL);
      flip_TEST (root._a._float== 0.0);
   }
}

Example #2

File: TestUseCaseUndo.cpp Project: ohmtech/flip-public

void  TestUseCaseUndo::run_004 ()
{
   Document document (Model::use (), 123456789UL, 'appl', 'gui ');

   Song & song = document.root <Song> ();
   Track & track = *song._tracks.emplace ();
   Clip & clip1 = *track._clips.emplace (1.0, 1.0);
   Clip & clip2 = *track._clips.emplace (5.0, 1.0);
   track._clips.emplace (2.5, 2.0);
   song._selection.emplace (clip1);
   song._selection.emplace (clip2);

   document.commit ();
   document.push ();

   History <HistoryStoreMemory> history (document);

   clip1._position = 2.0;

   document.commit ();
   auto tx = document.squash ();
   history.add_undo_step (tx);

   bool ok_flag = history.execute_undo ();
   flip_TEST (ok_flag);

   flip_TEST (clip1._position == 1.0);

   ok_flag = history.execute_redo ();
   flip_TEST (ok_flag);

   flip_TEST (clip1._position == 2.0);
}