/usr/include/camp/qt/qtmapper.hpp is in libcamp0.7-dev 0.7.1.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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**
** Copyright (C) 2009-2010 TECHNOGERMA Systems France and/or its subsidiary(-ies).
** Contact: Technogerma Systems France Information (contact@technogerma.fr)
**
** This file is part of the CAMP library.
**
** CAMP is free software: you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** CAMP is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with CAMP. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
#ifndef CAMP_QT_QTMAPPER_HPP
#define CAMP_QT_QTMAPPER_HPP
#include <camp/qt/qtsimpleproperty.hpp>
#include <camp/qt/qtfunction.hpp>
#include <camp/function.hpp>
#include <QMetaObject>
#include <QMetaMethod>
namespace camp_ext
{
/**
* \brief Mapper for Qt properties
*
* This class tells CAMP how to build metaproperties and metafunctions from Qt's metatypes.
*
* This mapper is not complete due to some limitations of either CAMP or Qt:
* \li enum properties are not mapped using camp::EnumProperty, but camp::SimpleProperty
* \li arrays and user defined classes are not supported for meta-properties
* \li arrays, user defined enums and classes are not supported for meta-functions
*/
template <typename T>
class QtMapper
{
public:
/**
* \brief Return the number of properties to map
*
* \return Number of properties
*/
static std::size_t propertyCount()
{
int count = 0;
for (int i = 0; i < T::staticMetaObject.propertyCount(); ++i)
{
// Discard incompatible types
if (filter(T::staticMetaObject.property(i)))
count++;
}
return count;
}
/**
* \brief Map a property
*
* \param index Index of the property to map
*
* \return index-th property mapped to a camp::Property
*/
static camp::Property* property(std::size_t index)
{
int prop = 0;
int count = 0;
for (prop = 0; count <= static_cast<int>(index); ++prop)
{
// Discard incompatible types
if (filter(T::staticMetaObject.property(prop)))
count++;
}
return new QtSimpleProperty<T>(T::staticMetaObject.property(prop - 1));
}
/**
* \brief Return the number of functions to map
*
* \return Number of functions
*/
static std::size_t functionCount()
{
int count = 0;
for (int i = 0; i < T::staticMetaObject.methodCount(); ++i)
{
// Discard incompatible types
if (filter(T::staticMetaObject.method(i)))
count++;
}
return count;
}
/**
* \brief Map a function
*
* \param index Index of the function to map
*
* \return index-th function mapped to a camp::function
*/
static camp::Function* function(std::size_t index)
{
int func = 0;
int count = 0;
for (func = 0; count <= static_cast<int>(index); ++func)
{
// Discard incompatible types
if (filter(T::staticMetaObject.method(func)))
count++;
}
return new QtFunction<T>(T::staticMetaObject.method(func - 1));
}
private:
/**
* \brief Check if a property is mappable to CAMP
*
* \param property Property to check
*
* \return True if the property can be bound to CAMP
*/
static bool filter(const QMetaProperty& property)
{
return QtHelper::type(property.type()) != camp::noType
|| property.isEnumType();
}
/**
* \brief Check if a function is mappable to CAMP
*
* \param function Function to check
*
* \return True if the function can be bound to CAMP
*/
static bool filter(const QMetaMethod& function)
{
// Check return type
if ((QtHelper::type(function.typeName()) == camp::noType)
&& QMetaType::type(function.typeName()) != QMetaType::Void) // void maps to camp::noType but is a valid return type
{
return false;
}
// Check parameters types
QList<QByteArray> args = function.parameterTypes();
Q_FOREACH(QByteArray arg, args)
{
if (QtHelper::type(arg) == camp::noType)
return false;
}
return true;
}
};
} // namespace camp_ext
#endif // CAMP_QT_QTMAPPER_HPP
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