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CHANGES-1.4
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1992-02-27
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The following changes have been made since Version 1.3
======================================================
- The LIST_ITERATE macro has been added.
- The precondition of GnSingleSelection::CheckSelectedItem() has been relaxed
so that empty lists are allowed when AllowNoSelection() is True.
- The function GnBasicSelectionList::RemoveDoubleClickCallback() has been
implemented.
- The base class of GnClass is now GnPresentable (formerly GnObject)
- The classes GnGraphView, GnViewNode and GnViewEdge have been introduced.
GnGraphView is some kind of graph widget. Graphs may be defined and
handled through a programming interface inherited from the class
GnSelection. The ISI-Layout-Algorithm is used to layout the graph.
Selection of two layout directions is possible.
- The function GnViewObject::inside_rectangle(...) became virtual
- The font attributes of a GnView are no longer determined in
GnView::determine_window_attributes(). Their initial values are now
set in GnView::after_create().