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source: code/trunk/src/libraries/core/object/Listable.cc @ 10624

Last change on this file since 10624 was 10624, checked in by landauf, 8 years ago

merged branch core7 back to trunk

  • Property svn:eol-style set to native
File size: 3.1 KB
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1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Fabian 'x3n' Landau
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/**
30    @file
31    @brief Implementation of Listable.
32*/
33
34#include "Listable.h"
35#include "core/CoreIncludes.h"
36#include "ObjectListBase.h"
37#include "Context.h"
38
39namespace orxonox
40{
41    RegisterClass(Listable).virtualBase();
42
43    /**
44        @brief Constructor: Allocates space in the element list.
45    */
46    Listable::Listable()
47    {
48        this->context_ = Context::getRootContext();
49        this->elements_.reserve(6);
50
51        RegisterObject(Listable);
52    }
53
54    /**
55        @brief Constructor: Allocates space in the element list and assigns the context
56    */
57    Listable::Listable(Context* context)
58    {
59        this->context_ = context;
60        this->elements_.reserve(6);
61
62        RegisterObject(Listable);
63    }
64
65    /**
66        @brief Destructor: Removes the object from the object-lists
67    */
68    Listable::~Listable()
69    {
70        this->unregisterObject();
71    }
72
73    /**
74        @brief Removes this object from the object-lists.
75    */
76    void Listable::unregisterObject()
77    {
78        for (size_t i = 0; i < this->elements_.size(); ++i)
79            Listable::deleteObjectListElement(this->elements_[i]);
80        this->elements_.clear();
81    }
82
83    /**
84     * @brief Changes the context.
85     * The object is removed from the current context and added to the new one. This also applies to all object lists the object is registered in.
86     */
87    void Listable::setContext(Context* context)
88    {
89        assert(context);
90        std::vector<ObjectListBaseElement*> copy = this->elements_;
91        this->elements_.clear();
92
93        for (size_t i = 0; i < copy.size(); ++i)
94        {
95            copy[i]->changeContext(this->context_, context);
96            Listable::deleteObjectListElement(copy[i]);
97        }
98
99        this->context_ = context;
100    }
101
102    /* static */ SmallObjectAllocator& Listable::getObjectListElementAllocator()
103    {
104        static SmallObjectAllocator allocator(sizeof(ObjectListElement<Listable>), 1024);
105        return allocator;
106    }
107
108    /* static */ void Listable::deleteObjectListElement(ObjectListBaseElement* element)
109    {
110        element->~ObjectListBaseElement();
111        Listable::getObjectListElementAllocator().free(element);
112    }
113}
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