File indexing completed on 2024-04-28 07:27:40

 /*************************************************************************************
  *  Copyright (C) 2007 by Aleix Pol <aleixpol@kde.org>                               *
  *                                                                                   *
  *  This program is free software; you can redistribute it and/or                    *
  *  modify it under the terms of the GNU General Public License                      *
  *  as published by the Free Software Foundation; either version 2                   *
  *  of the License, or (at your option) any later version.                           *
  *                                                                                   *
  *  This program is distributed in the hope that it will be useful,                  *
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of                   *
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                    *
  *  GNU General Public License for more details.                                     *
  *                                                                                   *
  *  You should have received a copy of the GNU General Public License                *
  *  along with this program; if not, write to the Free Software                      *
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA   *
  *************************************************************************************/
 
 #ifndef ALGEBRAHIGHLIGHTER_H
 #define ALGEBRAHIGHLIGHTER_H
 
 #include <QSyntaxHighlighter>
 #include "analitzaguiexport.h"
 
 /**
  *    The AlgebraHighlighter class is used to highlight the ExpressionEdit text.
  *    @author <aleixpol@kde.org>  
  */
 
 namespace Analitza { class Analyzer; }
 
 class ANALITZAGUI_EXPORT AlgebraHighlighter : public QSyntaxHighlighter
 {
     public:
         /** Defines the format status that could be used. */
         typedef enum {
             Expression,    /**< String expression format. */
             MathML,        /**< MathML format. */
             Autodetect    /**< Try to guess which format is being used. */
         } Mode;
         
         /** Constructor. Creates an AlgebraHighlighter from a QTextDocument @p doc. */
         explicit AlgebraHighlighter(QTextDocument *doc, const Analitza::Analyzer* na=nullptr);
         //int highlightParagraph(const QString &text, int endStateOfLastPara);
         
         /** Returns the currently highlight mode. */
         Mode mode() { return m_mode; }
         
         /** Sets the highlight mode. */
         void setMode(const Mode& newMode){ m_mode=newMode; rehighlight(); }
         
         /** 
          *    Returns whether something wrong has been found. It is an uncomplete way
          *    to know if it is correct because doesn't do any recursive check, but could be useful.
          * @returns whether it is a lexically correct expression.
          */
         bool isCorrect() const { return m_correct; }
         
         /** Sets the cursor position. */
         void setPos(uint p) { m_pos=p; }
         
         /** Sets the corresponding Analitza class. */
         void setAnalitza(const Analitza::Analyzer* na) { a = na; }
         
         ///@returns the name of the function that's being edited, if any
         QString editingName() const;
         
         ///@returns the number of the parameter that's being edited
         int editingParameter() const;
         bool editingBounds() const;
     private:
         void highlightBlock(const QString &text) override;
         
         enum MMLtokEnum { //For mathml highlighting
             gt,    
             lt,
             tag,
             value
         };
         
         bool m_correct;
         Mode m_mode;
         uint m_pos;
         int m_editingParameter;
         QString m_editingName;
         bool m_editingBounds;
         QString m_aName;
         
         QTextCharFormat bold;
         const Analitza::Analyzer* a;
 };
 
 #endif