/usr/include/synfig-1.0/synfig/weightedvalue.h is in libsynfig-dev 1.2.1-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 | /* === S Y N F I G ========================================================= */
/*! \file weightedvalue.h
** \brief A weighted value template
**
** $Id$
**
** \legal
** ......... ... 2014 Ivan Mahonin
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package 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
** General Public License for more details.
** \endlegal
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_WEIGHTEDVALUE_H
#define __SYNFIG_WEIGHTEDVALUE_H
/* === H E A D E R S ======================================================= */
#include "real.h"
#include "type.h"
#include "value.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig {
template<typename T>
class WeightedValue
{
public:
typedef T ValueType;
Real weight;
ValueType value;
WeightedValue(): weight(), value() { }
explicit WeightedValue(Real weight): weight(weight), value() { }
explicit WeightedValue(Real weight, const ValueType &value): weight(weight), value(value) { }
};
namespace types_namespace {
class TypeWeightedValueBase: public Type
{
public:
virtual Type& get_contained_type() = 0;
virtual ValueBase create_weighted_value(Real weight, const ValueBase &value) = 0;
virtual Real extract_weight(const ValueBase &value) = 0;
virtual ValueBase extract_value(const ValueBase &value) = 0;
};
template<typename T>
class TypeWeightedValue: public TypeWeightedValueBase
{
static String to_string(const WeightedValue<T> &x) {
return etl::strprintf("Weight (%f) %s", x.weight, value_to_string(x.value).c_str());
}
void initialize_vfunc(Description &description)
{
Type &type = get_type_alias(T()).type;
type.initialize();
Type::initialize_vfunc(description);
description.name = "weighted_" + type.description.name;
description.local_name = local_n("weighted") + String(" ") + type.description.local_name;
register_all_but_compare<WeightedValue<T>, TypeWeightedValue<T>::to_string>();
}
Type& get_contained_type() { return get_type_alias(T()).type; }
ValueBase create_weighted_value(Real weight, const ValueBase &value)
{ return WeightedValue<T>(weight, value.get(T())); };
Real extract_weight(const ValueBase &value)
{ return value.get(WeightedValue<T>()).weight; };
ValueBase extract_value(const ValueBase &value)
{ return value.get(WeightedValue<T>()).value; };
public:
static TypeWeightedValue instance;
};
template<typename T>
TypeWeightedValue<T> TypeWeightedValue<T>::instance;
template<typename T>
TypeAlias< WeightedValue<T> > get_type_alias(WeightedValue<T> const&) { return TypeAlias< WeightedValue<T> >(TypeWeightedValue<T>::instance); }
}
}; // END of namespace synfig
#endif
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