kworship/css/KwCssStandardise.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 _KwCssStandardise_h_
  21 #define _KwCssStandardise_h_
  22
  23 /**
  24  * @file KwCssStandardise.h
  25  * @brief Macros for css standardisation.
  26  * @author James Hogan <james@albanarts.com>
  27  */
  28
  29 #include "KwCssScope.h"
  30 #include "KwCssSchema.h"
  31
  32 #include <KwExport.h>
  33
  34 /// Simple class for accessing a style.
  35 template <typename T>
  36 class KWMAIN_EXPORT KwCssStyleAccessor
  37 {
  38   public:
  39     virtual ~KwCssStyleAccessor()
  40     {
  41     }
  42     /*
  43      * Main interface
  44      */
  45     T operator () (const KwCssScope* scope) const
  46     {
  47       return scope->getStyles().template getStyle<T>(m_name);
  48     }
  49
  50     void registerToSchema(KwCssSchema* schema) const
  51     {
  52       schema->registerProperty<T>(m_name);
  53     }
  54   protected:
  55     QString m_name;
  56 };
  57
  58 #define KWCSS_SCHEMA \
  59   inline KwCssSchema* schema() \
  60   { \
  61     static KwCssSchema* s = 0; \
  62     if (0 == s) \
  63     { \
  64       s = new KwCssSchema; \
  65     } \
  66     return s; \
  67   }
  68
  69 /// Start the root css namespace.
  70 #define KWCSS_ROOT_NAMESPACE(NAME) \
  71   namespace NAME \
  72   { \
  73     inline QString _scopeName() \
  74     { \
  75       return #NAME; \
  76     }
  77
  78 /// Start a non-root css namespace.
  79 #define KWCSS_START_NAMESPACE(PREV,NAME) \
  80   namespace NAME \
  81   { \
  82     inline QString _scopeName() \
  83     { \
  84       return #PREV "." #NAME; \
  85     }
  86
  87 /// End a css namespace.
  88 #define KWCSS_END_NAMESPACE() \
  89   };
  90
  91 /// Define a property in a css namespace.
  92 #define KWCSS_DEFINE_PROPERTY(TYPE, LNAME) \
  93   class KWMAIN_EXPORT Acc_##LNAME : public KwCssStyleAccessor< TYPE > \
  94   { \
  95     public: \
  96       Acc_##LNAME() \
  97       { \
  98         m_name = _scopeName(); \
  99         m_name.append("." #LNAME); \
 100         registerToSchema(schema()); \
 101       } \
 102   }; \
 103   KWMAIN_EXPORT KWCSS_EXTERN Acc_##LNAME LNAME;
 104
 105 #define KWCSS_EXTERN extern
 106
 107 #endif // _KwCssStandardise_h_
 108