Which Libraries?

[Josh Phillips]

I was wondering if people could suggest which libraries may be
best to use for building an application which would be a type of
text editor with multiple documents and branches. I need
something whereby I can create simple, custom windows and do
simple text editing, but then i need it to also handle much more
complicated graphics in a 3D viewport looking at lots of
branching documents. I'm not quite sure if something like GtkD or
QtD can handle the more complicated graphics or not, or if it is
possible to build it with windows, or perhaps trying to make a
text editor with opengl. I've been looking into different ideas
and thought i'd try and ask for some advice.