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

Phil Thompson phil at riverbankcomputing.com
Sat Nov 6 23:17:28 GMT 2010


On Sat, 6 Nov 2010 21:49:47 +0100, "Jonas O." <ezjonas at gmail.com> wrote:
> Now I'm sad.
> 
> How can I use keywordset2 to use a different set of keywords then ?

Read my original reply (see below).

Phil

> On Sat, Nov 6, 2010 at 21:10, Phil Thompson
<phil at riverbankcomputing.com>
> wrote:
>> On Sat, 6 Nov 2010 20:44:27 +0100, "Jonas O." <ezjonas at gmail.com>
wrote:
>>> On Sat, Nov 6, 2010 at 19:04, Phil Thompson
>> <phil at riverbankcomputing.com>
>>> wrote:
>>>> 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
>>>>
>>>
>>> I see, but I want to create several sets with each one having a
>>> different color, the set 2 will only give me one color, how can it
>>> select a different color for each set ?
>>
>> The underlying Scintilla C++ lexer only supports a limited number of
>> keyword sets. You will need to modify that (or take a copy) to add
>> support
>> for more.
>>
>> Phil
>>


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