src/xmlpatterns/utils/qnamespacebinding_p.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 //
       
    43 //  W A R N I N G
       
    44 //  -------------
       
    45 //
       
    46 // This file is not part of the Qt API.  It exists purely as an
       
    47 // implementation detail.  This header file may change from version to
       
    48 // version without notice, or even be removed.
       
    49 //
       
    50 // We mean it.
       
    51 
       
    52 #ifndef Patternist_NamespaceBinding_H
       
    53 #define Patternist_NamespaceBinding_H
       
    54 
       
    55 template<typename T> class QVector;
       
    56 
       
    57 #include "qxmlname.h"
       
    58 
       
    59 QT_BEGIN_HEADER
       
    60 
       
    61 QT_BEGIN_NAMESPACE
       
    62 
       
    63 namespace QPatternist
       
    64 {
       
    65     /**
       
    66      * @short Represents a namespace binding: a prefix, and a namespace URI.
       
    67      *
       
    68      * @author Frans Englich <frans.englich@nokia.com>
       
    69      */
       
    70     class NamespaceBinding
       
    71     {
       
    72     public:
       
    73         enum
       
    74         {
       
    75             InvalidCode = -1
       
    76         };
       
    77 
       
    78         typedef QVector<NamespaceBinding> Vector;
       
    79 
       
    80         inline NamespaceBinding() : m_prefix(InvalidCode),
       
    81                                     m_namespace(InvalidCode)
       
    82         {
       
    83         }
       
    84 
       
    85         inline NamespaceBinding(const QXmlName::PrefixCode p,
       
    86                                 const QXmlName::NamespaceCode n) : m_prefix(p),
       
    87                                                                 m_namespace(n)
       
    88         {
       
    89         }
       
    90 
       
    91         inline bool operator==(const NamespaceBinding &other) const
       
    92         {
       
    93             return m_prefix == other.m_prefix &&
       
    94                    m_namespace == other.m_namespace;
       
    95         }
       
    96 
       
    97         inline QXmlName::PrefixCode prefix() const
       
    98         {
       
    99             return m_prefix;
       
   100         }
       
   101 
       
   102         inline QXmlName::NamespaceCode namespaceURI() const
       
   103         {
       
   104             return m_namespace;
       
   105         }
       
   106 
       
   107         inline bool isNull() const
       
   108         {
       
   109             return m_prefix == InvalidCode;
       
   110         }
       
   111 
       
   112         /**
       
   113          * @short Constructs a NamespaceBinding whose prefix and namespace is
       
   114          * taken from @p qName.
       
   115          *
       
   116          * The local name in @p qName is ignored. @p qName may not be null.
       
   117          */
       
   118         static inline NamespaceBinding fromQXmlName(const QXmlName qName)
       
   119         {
       
   120             Q_ASSERT(!qName.isNull());
       
   121             return NamespaceBinding(qName.prefix(), qName.namespaceURI());
       
   122         }
       
   123 
       
   124     private:
       
   125         QXmlName::PrefixCode      m_prefix;
       
   126         QXmlName::NamespaceCode   m_namespace;
       
   127     };
       
   128 
       
   129     /**
       
   130      * @relates NamespaceBinding
       
   131      */
       
   132     static inline uint qHash(const NamespaceBinding nb)
       
   133     {
       
   134         return (nb.prefix() << 16) + nb.namespaceURI();
       
   135     }
       
   136 
       
   137 }
       
   138 
       
   139 QT_END_NAMESPACE
       
   140 
       
   141 QT_END_HEADER
       
   142 
       
   143 #endif