/usr/include/cegui-0.8.7/CEGUI/TplProperty.h is in libcegui-mk2-dev 0.8.7-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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created: 23/11/2010
author: Martin Preisler
purpose: Finger saving template property
*************************************************************************/
/***************************************************************************
* Copyright (C) 2004 - 2010 Paul D Turner & The CEGUI Development Team
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
***************************************************************************/
#ifndef _CEGUITplProperty_h_
#define _CEGUITplProperty_h_
#include "CEGUI/TypedProperty.h"
// Start of CEGUI namespace section
namespace CEGUI
{
template<class C, typename T>
class TplProperty : public TypedProperty<T>
{
public:
typedef PropertyHelper<T> Helper;
typedef void (C::*Setter)(typename Helper::pass_type);
/*!
Template madness to sort out getters returning ref T, const ref T or just T.
*/
struct GetterFunctor
{
template<typename DT> struct EnsurePlain { typedef DT result; };
template<typename DT> struct EnsurePlain<DT&> { typedef DT result; };
template<typename DT> struct EnsurePlain<const DT&> { typedef DT result; };
template<typename DT> struct EnsureConstRef { typedef const DT& result; };
template<typename DT> struct EnsureConstRef<DT&> { typedef const DT& result; };
template<typename DT> struct EnsureConstRef<const DT&> { typedef const DT& result; };
template<typename DT> struct EnsureRef { typedef DT& result; };
template<typename DT> struct EnsureRef<DT&> { typedef DT& result; };
template<typename DT> struct EnsureRef<const DT&> { typedef DT& result; };
typedef typename EnsurePlain<typename Helper::safe_method_return_type>::result (C::*PlainGetter)() const;
typedef typename EnsureConstRef<typename Helper::safe_method_return_type>::result (C::*ConstRefGetter)() const;
typedef typename EnsureRef<typename Helper::safe_method_return_type>::result (C::*RefGetter)() const;
GetterFunctor(PlainGetter getter):
d_plainGetter(getter)
//d_constRefGetter(0), no need to initialise these, we will never use them
//d_refGetter(0)
{}
GetterFunctor(ConstRefGetter getter):
d_plainGetter(0),
d_constRefGetter(getter)
//d_refGetter(0) // no need to initialise this, we will never use it
{}
GetterFunctor(RefGetter getter):
d_plainGetter(0),
d_constRefGetter(0),
d_refGetter(getter)
{}
// to set 0 as func
GetterFunctor(int /*val*/):
d_plainGetter(0),
d_constRefGetter(0),
d_refGetter(0)
{}
operator bool(void) const
{
return d_plainGetter || d_constRefGetter || d_refGetter;
}
typename Helper::safe_method_return_type operator()(const C* instance) const
{
// FIXME: Ideally we want this to be done during compilation, not runtime
if (d_plainGetter)
return CEGUI_CALL_MEMBER_FN(*instance, d_plainGetter)();
if (d_constRefGetter)
return CEGUI_CALL_MEMBER_FN(*instance, d_constRefGetter)();
if (d_refGetter)
return CEGUI_CALL_MEMBER_FN(*instance, d_refGetter)();
assert(false);
// just to get rid of the warning
return CEGUI_CALL_MEMBER_FN(*instance, d_plainGetter)();
}
PlainGetter d_plainGetter;
ConstRefGetter d_constRefGetter;
RefGetter d_refGetter;
};
TplProperty(const String& name, const String& help, const String& origin, Setter setter, GetterFunctor getter, typename Helper::pass_type defaultValue = T(), bool writesXML = true):
TypedProperty<T>(name, help, origin, defaultValue, writesXML),
d_setter(setter),
d_getter(getter)
{}
virtual ~TplProperty()
{}
//! \copydoc Property::isReadable
virtual bool isReadable() const
{
return d_getter;
}
//! \copydoc Property::isWritable
virtual bool isWritable() const
{
return d_setter;
}
protected:
Setter d_setter;
GetterFunctor d_getter;
};
} // End of CEGUI namespace section
#endif // end of guard _CEGUITplProperty_h_
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