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7.2.6 The Undo History Window

Files: gui/main.h, gui/undohistory.c

The Undo History window shows the undo history items of a tlo or the universe (the “global undo history”). Similarly to the Universe Browser window, it does not keep any copy of the data; it uses a GtkTreeModel object which provides the interface between kernel structures and the GtkTreeView widget. This is described in The GtkTreeModel Interface for Internal Structures.