src/highlighter.h

   1 /*
   2   Copyright (c) 2006 Paolo Capriotti <p.capriotti@sns.it>
   3             (c) 2006 Maurizio Monge <maurizio.monge@kdemail.net>
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9 */
  10
  11 #ifndef HIGHLIGHTER_H
  12 #define HIGHLIGHTER_H
  13
  14 #include <QSyntaxHighlighter>
  15 #include <QTextCharFormat>
  16 #include <boost/shared_ptr.hpp>
  17
  18 class PatternListAdaptorOutputIterator;
  19 class PatternListAdaptorInputIterator;
  20
  21 class Highlighter : public QSyntaxHighlighter {
  22 Q_OBJECT
  23 public:
  24   struct Pattern {
  25     QString name;
  26     QRegExp pattern;
  27     QTextCharFormat format;
  28   };
  29 private:
  30   std::vector<Pattern> m_patterns;
  31 public:
  32   Highlighter(QTextDocument* parent);
  33   Highlighter(QTextDocument* parent, const Pattern& pattern);
  34   void reload();
  35
  36   static void load(PatternListAdaptorOutputIterator& out);
  37   static void save(const PatternListAdaptorInputIterator& in);
  38
  39   virtual void highlightBlock(const QString& text);
  40   std::vector<Pattern>& patterns();
  41 };
  42
  43
  44 class PatternListAdaptorOutputIterator {
  45 public:
  46   virtual ~PatternListAdaptorOutputIterator() { }
  47   virtual void add(const Highlighter::Pattern&) = 0;
  48 };
  49
  50 class PatternListAdaptorInputIterator {
  51 public:
  52   virtual ~PatternListAdaptorInputIterator() { }
  53   virtual boost::shared_ptr<PatternListAdaptorInputIterator> clone() const = 0;
  54   virtual bool valid() const = 0;
  55   virtual PatternListAdaptorInputIterator& inc() = 0;
  56   virtual const Highlighter::Pattern& value() const = 0;
  57 };
  58
  59 #endif // HIGHLIGHTER_H