[QScintilla] Trying to set different color for different set of keywords in QsciLexerCPP

[Phil Thompson]

On Sat, 6 Nov 2010 18:38:12 +0100, "Jonas O." <ezjonas at gmail.com> wrote:
> Hello, and first thanks for bringing Scintilla to Qt ! I'm quite happy
> to see all those nifty features made that much simple to implement
> (current line highlight, margin numbers, select line form left click
> in the margin, etc).
> 
> However I'm having one little problem, I want to color some keyword
> sets with a different than other keyword sets.
> I created my own lexer by duplicating the QsciLexerCPP files, but I
> need some starting point to see how I can do that; the SendScintilla
> function is not very documented and does not forward to any scintilla
> doc (I also read it's useless to ask here to learn how to create a
> lexer, but I just want to color certain separately, not create my own
> language).
> 
> I hope someone could help me at least a little, I guess someone have
> to know how to do it, the creator of QScintilla maybe ? The QScintilla
> lexer classes did not appear magically...

You don't need to create a new lexer - just subclass QsciLexerCPP and
reimplement the keywords() method to handle the case where the keyword set
is 2 (see QsciLexerCPP::KeywordSet2). You need to return a string for set 2
containing the keywords you want coloured differently. If some of these
appear in the default set 1 then you will also need to handle that set by
returning a string that doesn't contain those keywords.

You may also want to reimplement defaultColor(), defaultFont() etc. to
provide different defaults for the KeywordSet2 style.

Phil