Calligra/Text Layout

I thought I'd try to write some stuff up as I learn more about the text layout code. It's just a stub for now.

Text layout code in KOffice can be found in four different places:

1. Qt Scribe
   • QTextDocument
   • QTextLine
   • QTextLayout
   • Et.c.
2. KoText library
   • Code in libs/kotext/KoTextDocumentLayout.cpp.
   • Simple document layout.
   • Used by many KOffice apps.
   • Implements the QAbstractTextDocumentLayout interface from Qt.
   • Works with an underlying QTextDocument.
   • Depends on the text plugin for core work.
3. KWord's layouter
   • Code in kword/part/frames/KWTextDocumentLayout.cpp.
   • More advanced document layout
   • Inherits the basic document layout in KoText.
   • Depends on the text plugin for core work.
   • Allows text to run around shapes.
   • Allows anchored shapes.
4. Text plugin
   • Code in plugins/textshape/Layout.cpp.
   • Implements the KoTextDocumentLayout::LayoutState interface.
   • Does a lot of grunt layout work.