kworship/css/KwCssSchema.h

   1 /***************************************************************************
   2  *   This file is part of KWorship.                                        *
   3  *   Copyright 2008 James Hogan <james@albanarts.com>                      *
   4  *                                                                         *
   5  *   KWorship 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  *   KWorship is distributed in the hope that it will be useful,           *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with KWorship.  If not, write to the Free Software Foundation,  *
  17  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   *
  18  ***************************************************************************/
  19
  20 #ifndef _KwCssSchema_h_
  21 #define _KwCssSchema_h_
  22
  23 /**
  24  * @file KwCssSchema.h
  25  * @brief Schema of styles.
  26  * @author James Hogan <james@albanarts.com>
  27  */
  28
  29 #include "KwCssScope.h"
  30
  31 #include <QString>
  32 #include <QHash>
  33
  34 #include <iostream>
  35 /// Schema of styles.
  36 class KwCssSchema
  37 {
  38   public:
  39
  40     /*
  41      * Constructors + destructor
  42      */
  43
  44     /// Default constructor
  45     KwCssSchema()
  46     {
  47     }
  48
  49     /*
  50      * Main interface
  51      */
  52
  53     /// Register a new property.
  54     template <typename T>
  55     void registerProperty(const QString& name)
  56     {
  57       m_constructors[name] = &KwCssConstruct<T>;
  58     }
  59
  60     /// Construct from an unprocessed string and a style name.
  61     KwCssAbstractStyle* construct(const QString& name, const KwCssUnprocessed& value) const
  62     {
  63       KwCssAbstractStyle* result = 0;
  64       if (m_constructors.contains(name))
  65       {
  66         result = m_constructors[name](value);
  67       }
  68       if (0 == result)
  69       {
  70         result = new KwCssStyle<KwCssUnprocessed>(value);
  71       }
  72       return result;
  73     }
  74
  75   private:
  76
  77     /*
  78      * Variables
  79      */
  80
  81     /// Constructor function.
  82     typedef KwCssAbstractStyle* Constructor(const KwCssUnprocessed& value);
  83     /// Hash of style names to constructors.
  84     QHash<QString, Constructor*> m_constructors;
  85 };
  86
  87 #endif // _KwCssSchema_h_
  88