2016-06-17 19:33 GMT+02:00 Elvis Stansvik <elvst...@gmail.com>: > 2016-06-17 18:18 GMT+02:00 Mike Jackson <imikejack...@gmail.com>: >> We are using the QUndoStack and when we "push()" onto the stack the actual >> QUndoCommand is being executed. In the documentation is seems as though I >> could set the "id" of the QUndoCommand to -1 and NOT have it executed but >> after looking more close at the docs and the actual source code the >> QUndoCommand will definitely be executed when pushed onto the stack. This >> behavior does not make sense to me and I am probably missing something >> simple about how to use the QUndoStack. Could someone offer an explanation >> of why my command gets executed? And also how do I get my undocommand on the >> stack **without** executing the command? > > I haven't used QUndoStack much myself, but to me what you describe > does not make sense. An undo stack is supposed to represent what has > happened (this history), so why should a command not be executed when
*the history. > pushed? Is it that you have already executed it manually? > > Either way, I think a command will always be executed when pushed, so > that's what you need to work with. The -1 id thing seems to be just > for controlling the merging behavior. > > Elvis > >> >> Thanks >> >> -- >> Michael A. Jackson >> BlueQuartz Software, LLC >> [e]: mike.jack...@bluequartz.net >> _______________________________________________ >> Interest mailing list >> Interest@qt-project.org >> http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
