qtmobility/src/contacts/qtcontactsglobal.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 16 Apr 2010 15:51:22 +0300
changeset 1 2b40d63a9c3d
child 4 90517678cc4f
permissions -rw-r--r--
Revision: 201011 Kit: 201015

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** contained in the Technology Preview License Agreement accompanying
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#ifndef QTCONTACTSGLOBAL_H
#define QTCONTACTSGLOBAL_H

#include <qmobilityglobal.h>
#include <QString>

#define QTCONTACTS_VERSION_NAME "com.nokia.qt.mobility.contacts.api.version" 
#define QTCONTACTS_IMPLEMENTATION_VERSION_NAME "com.nokia.qt.mobility.contacts.implementation.version" 
#define QTCONTACTS_VERSION 1 

QTM_BEGIN_NAMESPACE

typedef quint32 QContactLocalId; // XXX Put this else where

/*
 * Latin1Literal
 *
 * The idea of the Latin1Literal is to provide a POD-esque container
 * for constant strings which are defined in various places
 * (e.g., detail leaf class definition names, field keys, constant field values, etc).
 * We would ideally like these to be stored in the .rodata section to allow
 * sharing / minimise footprint.
 *
 * Given that the declare/define macros are const anyway, we changed the
 * member to a char array from a const char array, in order to squash
 * the compiler warning regarding uninitialised const value without
 * initialiser list in default ctor (POD requires default ctor).
 * Does it work as hoped?
 */

template <int N> struct Latin1Literal
{
    //const char str[N]; // causes compiler warning due to uninitialized const value
    char str[N];

    operator QLatin1String() const {return QLatin1String(str);}
    operator QString() const {return QString::fromLatin1(str, N-1);}
};

template<int N> bool operator==(const Latin1Literal<N>& a, const QLatin1String& b)
{
    return QLatin1String(a.str) == b;
}

template<int N> bool operator==(const Latin1Literal<N>& a, const QString& b)
{
    return b == QLatin1String(a.str);
}

template<int N> bool operator==(const QLatin1String& b, const Latin1Literal<N>& a)
{
    return QLatin1String(a.str) == b;
}

template<int N> bool operator==(const QString& b, const Latin1Literal<N>& a)
{
    return b == QLatin1String(a.str);
}

template<int N> bool operator!=(const Latin1Literal<N>& a, const QLatin1String& b)
{
    return QLatin1String(a.str) != b;
}

template<int N> bool operator!=(const Latin1Literal<N>& a, const QString& b)
{
    return b != QLatin1String(a.str);
}

template<int N> bool operator!=(const QLatin1String& b, const Latin1Literal<N>& a)
{
    return QLatin1String(a.str) != b;
}

template<int N> bool operator!=(const QString& b, const Latin1Literal<N>& a)
{
    return b != QLatin1String(a.str);
}

#define Q_DECLARE_LATIN1_LITERAL(varname, str) static const Latin1Literal<sizeof(str)> varname
#define Q_DEFINE_LATIN1_LITERAL(varname, str) const Latin1Literal<sizeof(str)> varname = {str}

QTM_END_NAMESPACE

// Not needed since this is a typedef, and qglobal already does this for the base type
// Q_DECLARE_TYPEINFO(QTM_PREPEND_NAMESPACE(QContactLocalId), Q_PRIMITIVE_TYPE);

#endif