kworship/css/KwCssStyles.cpp

   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 /**
  21  * @file KwCssStyles.cpp
  22  * @brief Set of cascading style properties.
  23  * @author James Hogan <james@albanarts.com>
  24  */
  25
  26 #include "KwCssStyles.h"
  27 #include "KwCssStyleStates.h"
  28 #include "KwCssAbstractStyle.h"
  29 #include "KwCssAbstractStyleState.h"
  30
  31 /*
  32  * Constructors + destructors
  33  */
  34
  35 /// Default constructor.
  36 KwCssStyles::KwCssStyles()
  37 : m_styles()
  38 {
  39 }
  40
  41 /// Copy constructor.
  42 KwCssStyles::KwCssStyles(const KwCssStyles& other)
  43 : m_styles()
  44 {
  45   StyleDictionary::const_iterator it;
  46   for (it = other.m_styles.begin(); it != other.m_styles.end(); ++it)
  47   {
  48     m_styles[it.key()] = (*it)->duplicate();
  49   }
  50 }
  51
  52 /// Destructor.
  53 KwCssStyles::~KwCssStyles()
  54 {
  55   StyleDictionary::iterator it;
  56   for (it = m_styles.begin(); it != m_styles.end(); ++it)
  57   {
  58     delete *it;
  59   }
  60 }
  61
  62 /*
  63  * Main interface
  64  */
  65
  66 /// Set a style.
  67 void KwCssStyles::setRawStyle(QString name, KwCssAbstractStyle* style)
  68 {
  69   // Delete previous value
  70   StyleDictionary::iterator it = m_styles.find(name);
  71   if (it != m_styles.end())
  72   {
  73     delete *it;
  74   }
  75   // Set new value
  76   m_styles[name] = style;
  77 }
  78
  79 /// Return whether the styles container is empty.
  80 bool KwCssStyles::isEmpty() const
  81 {
  82   return m_styles.isEmpty();
  83 }
  84
  85 /// Convert to CSS-like format.
  86 QString KwCssStyles::toString() const
  87 {
  88   return "/* KwCssStyle::toString() unimplemented */";
  89 }
  90
  91 /*
  92  * Operators
  93  */
  94
  95 /// Apply styles.
  96 KwCssStyleStates& operator << (KwCssStyleStates& states, const KwCssStyles& styles)
  97 {
  98   // go through styles, adjusting the states
  99   KwCssStyles::StyleDictionary::const_iterator it;
 100   for (it = styles.m_styles.begin(); it != styles.m_styles.end(); ++it)
 101   {
 102     KwCssAbstractStyleState*& state = states[it.key()];
 103     if (0 == state)
 104     {
 105       state = (*it)->getNewState();
 106     }
 107     (*state) << (*it);
 108   }
 109   return states;
 110 }
 111