# OgreIteratorWrappers.h

Go to the documentation of this file.

    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
    00070         explicit VectorIterator(T& c)
    00071             : mCurrent(c.begin()), mEnd(c.end())
    00072         {
    00073         }
    00074
    00076         bool hasMoreElements(void) const
    00077         {
    00078             return mCurrent != mEnd;
    00079         }
    00080
    00082         typename T::value_type getNext(void)
    00083         {
    00084             return *mCurrent++;
    00085         }
    00087         typename T::value_type peekNext(void)
    00088         {
    00089             return *mCurrent;
    00090         }
    00092         typename T::pointer peekNextPtr(void)
    00093         {
    00094             return &(*mCurrent);
    00095         }
    00097         void moveNext(void)
    00098         {
    00099             ++mCurrent;
    00100         }
    00101
    00102
    00103
    00104     };
    00105
    00120     template <class T>
    00121     class MapIterator
    00122     {
    00123     private:
    00124         typename T::iterator mCurrent;
    00125         typename T::iterator mEnd;
    00127         MapIterator() {};
    00128     public:
    00129         typedef typename T::mapped_type MappedType;
    00130         typedef typename T::key_type KeyType;
    00131
    00136         MapIterator(typename T::iterator start, typename T::iterator end)
    00137             : mCurrent(start), mEnd(end)
    00138         {
    00139         }
    00140
    00145         explicit MapIterator(T& c)
    00146             : mCurrent(c.begin()), mEnd(c.end())
    00147         {
    00148         }
    00149
    00151         bool hasMoreElements(void) const
    00152         {
    00153             return mCurrent != mEnd;
    00154         }
    00155
    00157         typename T::mapped_type getNext(void)
    00158         {
    00159             return (mCurrent++)->second;
    00160         }
    00162         typename T::mapped_type peekNextValue(void)
    00163         {
    00164             return mCurrent->second;
    00165         }
    00167         typename T::key_type peekNextKey(void)
    00168         {
    00169             return mCurrent->first;
    00170         }
    00172         MapIterator<T> & operator=( MapIterator<T> &rhs )
    00173         {
    00174             mCurrent = rhs.mCurrent;
    00175             mEnd = rhs.mEnd;
    00176             return *this;
    00177         }
    00180         typename T::mapped_type* peekNextValuePtr(void)
    00181         {
    00182             return &(mCurrent->second);
    00183         }
    00185         void moveNext(void)
    00186         {
    00187             ++mCurrent;
    00188         }
    00189
    00190
    00191
    00192     };
    00207     template <class T>
    00208     class ConstVectorIterator
    00209     {
    00210     private:
    00211         mutable typename T::const_iterator mCurrent;
    00212         typename T::const_iterator mEnd;
    00214         ConstVectorIterator() {};
    00215     public:
    00216         typedef typename T::value_type ValueType;
    00217
    00222         ConstVectorIterator(typename T::const_iterator start, typename T::const_iterator end)
    00223             : mCurrent(start), mEnd(end)
    00224         {
    00225         }
    00226
    00231         explicit ConstVectorIterator(const T& c)
    00232             : mCurrent(c.begin()), mEnd(c.end())
    00233         {
    00234         }
    00235
    00237         bool hasMoreElements(void) const
    00238         {
    00239             return mCurrent != mEnd;
    00240         }
    00241
    00243         typename T::value_type getNext(void)
    00244         {
    00245             return *mCurrent++;
    00246         }
    00248         typename T::value_type peekNext(void) const
    00249         {
    00250             return *mCurrent;
    00251         }
    00253         typename T::const_pointer peekNextPtr(void) const
    00254         {
    00255             return &(*mCurrent);
    00256         }
    00258         void moveNext(void) const
    00259         {
    00260             ++mCurrent;
    00261         }
    00262
    00263
    00264
    00265     };
    00266
    00281     template <class T>
    00282     class ConstMapIterator
    00283     {
    00284     private:
    00285         mutable typename T::const_iterator mCurrent;
    00286         typename T::const_iterator mEnd;
    00288         ConstMapIterator() {};
    00289     public:
    00290         typedef typename T::mapped_type MappedType;
    00291         typedef typename T::key_type KeyType;
    00292
    00297         ConstMapIterator(typename T::const_iterator start, typename T::const_iterator end)
    00298             : mCurrent(start), mEnd(end)
    00299         {
    00300         }
    00301
    00306         explicit ConstMapIterator(const T& c)
    00307             : mCurrent(c.begin()), mEnd(c.end())
    00308         {
    00309         }
    00310
    00312         bool hasMoreElements(void) const
    00313         {
    00314             return mCurrent != mEnd;
    00315         }
    00316
    00318         typename T::mapped_type getNext(void)
    00319         {
    00320             return (mCurrent++)->second;
    00321         }
    00323         typename T::mapped_type peekNextValue(void) const
    00324         {
    00325             return mCurrent->second;
    00326         }
    00328         typename T::key_type peekNextKey(void) const
    00329         {
    00330             return mCurrent->first;
    00331         }
    00333         MapIterator<T> & operator=( MapIterator<T> &rhs )
    00334         {
    00335             mCurrent = rhs.mCurrent;
    00336             mEnd = rhs.mEnd;
    00337             return *this;
    00338         }
    00341         const typename T::mapped_type* peekNextValuePtr(void) const
    00342         {
    00343             return &(mCurrent->second);
    00344         }
    00346         void moveNext(void) const
    00347         {
    00348             ++mCurrent;
    00349         }
    00350
    00351
    00352
    00353     };
    00354 }
    00355 #endif

Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Sep 17 15:39:09 2006