# OgreIteratorWrappers.h

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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright (c) 2000-2005 The OGRE Team
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software; you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation; either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023 -----------------------------------------------------------------------------
    00024 */
    00025 #ifndef __IteratorWrappers_H__
    00026 #define __IteratorWrappers_H__
    00027
    00028 #include "OgrePrerequisites.h"
    00029
    00030 namespace Ogre {
    00031
    00046     template <class T>
    00047     class VectorIterator
    00048     {
    00049     private:
    00050         typename T::iterator mCurrent;
    00051         typename T::iterator mEnd;
    00053         VectorIterator() {};
    00054     public:
    00055         typedef typename T::value_type ValueType;
    00056
    00061         VectorIterator(typename T::iterator start, typename T::iterator end)
    00062             : mCurrent(start), mEnd(end)
    00063         {
    00064         }
    00065
    00067         bool hasMoreElements(void) const
    00068         {
    00069             return mCurrent != mEnd;
    00070         }
    00071
    00073         typename T::value_type getNext(void)
    00074         {
    00075             return *mCurrent++;
    00076         }
    00078         typename T::value_type peekNext(void)
    00079         {
    00080             return *mCurrent;
    00081         }
    00083         typename T::pointer peekNextPtr(void)
    00084         {
    00085             return &(*mCurrent);
    00086         }
    00088         void moveNext(void)
    00089         {
    00090             mCurrent++;
    00091         }
    00092
    00093
    00094
    00095     };
    00096
    00111     template <class T>
    00112     class MapIterator
    00113     {
    00114     private:
    00115         typename T::iterator mCurrent;
    00116         typename T::iterator mEnd;
    00118         MapIterator() {};
    00119     public:
    00120         typedef typename T::mapped_type MappedType;
    00121         typedef typename T::key_type KeyType;
    00122
    00127         MapIterator(typename T::iterator start, typename T::iterator end)
    00128             : mCurrent(start), mEnd(end)
    00129         {
    00130         }
    00131
    00133         bool hasMoreElements(void) const
    00134         {
    00135             return mCurrent != mEnd;
    00136         }
    00137
    00139         typename T::mapped_type getNext(void)
    00140         {
    00141             return (mCurrent++)->second;
    00142         }
    00144         typename T::mapped_type peekNextValue(void)
    00145         {
    00146             return mCurrent->second;
    00147         }
    00149         typename T::key_type peekNextKey(void)
    00150         {
    00151             return mCurrent->first;
    00152         }
    00154         MapIterator<T> & operator=( MapIterator<T> &rhs )
    00155         {
    00156             mCurrent = rhs.mCurrent;
    00157             mEnd = rhs.mEnd;
    00158             return *this;
    00159         }
    00162         typename T::pointer peekNextValuePtr(void)
    00163         {
    00164             return &(mCurrent->second);
    00165         }
    00167         void moveNext(void)
    00168         {
    00169             mCurrent++;
    00170         }
    00171
    00172
    00173
    00174     };
    00189     template <class T>
    00190     class ConstVectorIterator
    00191     {
    00192     private:
    00193         mutable typename T::const_iterator mCurrent;
    00194         typename T::const_iterator mEnd;
    00196         ConstVectorIterator() {};
    00197     public:
    00198         typedef typename T::value_type ValueType;
    00199
    00204         ConstVectorIterator(typename T::const_iterator start, typename T::const_iterator end)
    00205             : mCurrent(start), mEnd(end)
    00206         {
    00207         }
    00208
    00210         bool hasMoreElements(void) const
    00211         {
    00212             return mCurrent != mEnd;
    00213         }
    00214
    00216         typename T::value_type getNext(void)
    00217         {
    00218             return *mCurrent++;
    00219         }
    00221         typename T::value_type peekNext(void) const
    00222         {
    00223             return *mCurrent;
    00224         }
    00226         typename T::const_pointer peekNextPtr(void) const
    00227         {
    00228             return &(*mCurrent);
    00229         }
    00231         void moveNext(void) const
    00232         {
    00233             mCurrent++;
    00234         }
    00235
    00236
    00237
    00238     };
    00239
    00254     template <class T>
    00255     class ConstMapIterator
    00256     {
    00257     private:
    00258         mutable typename T::const_iterator mCurrent;
    00259         typename T::const_iterator mEnd;
    00261         ConstMapIterator() {};
    00262     public:
    00263         typedef typename T::mapped_type MappedType;
    00264         typedef typename T::key_type KeyType;
    00265
    00270         ConstMapIterator(typename T::const_iterator start, typename T::const_iterator end)
    00271             : mCurrent(start), mEnd(end)
    00272         {
    00273         }
    00274
    00276         bool hasMoreElements(void) const
    00277         {
    00278             return mCurrent != mEnd;
    00279         }
    00280
    00282         typename T::mapped_type getNext(void)
    00283         {
    00284             return (mCurrent++)->second;
    00285         }
    00287         typename T::mapped_type peekNextValue(void) const
    00288         {
    00289             return mCurrent->second;
    00290         }
    00292         typename T::key_type peekNextKey(void) const
    00293         {
    00294             return mCurrent->first;
    00295         }
    00297         MapIterator<T> & operator=( MapIterator<T> &rhs )
    00298         {
    00299             mCurrent = rhs.mCurrent;
    00300             mEnd = rhs.mEnd;
    00301             return *this;
    00302         }
    00305         typename T::const_pointer peekNextValuePtr(void) const
    00306         {
    00307             return &(mCurrent->second);
    00308         }
    00310         void moveNext(void) const
    00311         {
    00312             mCurrent++;
    00313         }
    00314
    00315
    00316
    00317     };
    00318 }
    00319 #endif

Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Feb 12 12:59:47 2006