Hello,
It was unclear from your query _exactly_ what you are looking for.
Scintilla itself has Qt support built in. I don't use it, so I don't
know. If you don't want to deal with the mountain of bugs in Qt or the
licensing issues you could use that.
https://scintilla.org/
If you want something better than Qt with a much tinier bug database and
zero QML bugs because all things QML have been removed you can look into
CopperSpice.
https://www.copperspice.com/
There is no commercial version of CopperSpice so no "Everybody must buy
a license" definition of "OpenSource." I have a non-commercial fork of
Scintilla for CopperSpice. It has a few differences, but is kept
reasonably close to Scintilla. Usually within a year.
https://sourceforge.net/projects/csscintilla/
The copperspice_examples directory of the code has multiple editors
starting from the most basic of "just throw the widget in a window" to
several with EDT keypad navigation. One of the biggest pitfalls of
Scintilla is there is no tutorial. The SCiTE text editor started out
being that, then became where every feature was tested so there is no
longer any "print hello to the printer" example. CsScintilla has that.
RedDiamond
https://sourceforge.net/projects/reddiamond/
Is a full on editor with EDT keypad navigation, themes, configurable
backups using lexers, theme import/export and many more features.
Another new version should be out in a few months.
Note: Do not use the CsScintillaDocument class or its ScintillaDocument
counterpart no matter which way you go. Those classes are going away
very soon. For CsScintilla they will go away in the very next release.
Neil wants them gone out of Scintilla as well.
Note 2: Many/most of the Lexers that are part of Lexilla library are
legacy lexers. They don't support all of the new lexer features in the
documentation.
Note 3: Coordinating colors across lexers to have a common theme is a
real PITA. Everybody re-used the same numbers for different things. If
you are going to create a production quality theme supporting editor
which works for more than 2-3 similar languages, you have some work to
do. You may have noticed that most of the "new" editors being released
OpenSource support only C/C++, Java, and Python; not because those are
the most popular, but because they are syntax similar and the default
lexers are pretty close in how they use the paint-by-numbers system.
Roland
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