# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

[Home] [Tutorials] [All Classes] [Grouped Classes]

- Main Page
- Related Pages
- Namespaces
- Classes
- Files

- File List
- File Members

# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlCore/ResourceDatabase.hpp

Go to the documentation of this file.

    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #ifndef ResourceDatabase_INCLUDE_ONCE
    00033 #define ResourceDatabase_INCLUDE_ONCE
    00034
    00035 #include <vlCore/Object.hpp>
    00036 #include <vlCore/String.hpp>
    00037 #include <vector>
    00038 #include <algorithm>
    00039
    00040 namespace vl
    00041 {
    00042   class VirtualFile;
    00043
    00048   class VLCORE_EXPORT ResourceDatabase: public Object
    00049   {
    00050     VL_INSTRUMENT_CLASS(vl::ResourceDatabase, Object)
    00051
    00052   public:
    00053     ResourceDatabase()
    00054     {
    00055       VL_DEBUG_SET_OBJECT_NAME()
    00056     }
    00057
    00058     const std::vector< ref<Object> >& resources() const { return mResources; }
    00059
    00060     std::vector< ref<Object> >& resources() { return mResources; }
    00061
    00063     template<class T>
    00064     T* next(int& cur_pos) const
    00065     {
    00066       for(unsigned i=cur_pos; i<mResources.size(); ++i)
    00067       {
    00068         ref<T> r = cast<T>(mResources[i].get());
    00069         if (r)
    00070         {
    00071           cur_pos = i+1;
    00072           return r.get();
    00073         }
    00074       }
    00075       return NULL;
    00076     }
    00077
    00079     template<class T>
    00080     void get( std::vector< ref<T> >& resources, bool clear_vector=true )
    00081     {
    00082       if (clear_vector)
    00083         resources.clear();
    00084
    00085       for( unsigned i=0; i<mResources.size(); ++i )
    00086       {
    00087         ref<T> r = cast<T>(mResources[i].get());
    00088         if (r)
    00089           resources.push_back(r);
    00090       }
    00091     }
    00092
    00094     template<class T>
    00095     void extract( std::vector< ref<T> >& resources, bool clear_vector=true )
    00096     {
    00097       if (clear_vector)
    00098         resources.clear();
    00099
    00100       size_t start = resources.size();
    00101
    00102       for( unsigned i=mResources.size(); i--; )
    00103       {
    00104         ref<T> r = cast<T>(mResources[i].get());
    00105         if (r)
    00106         {
    00107           resources.push_back(r);
    00108           mResources.erase(mResources.begin()+i);
    00109         }
    00110       }
    00111
    00112       std::reverse(resources.begin()+start, resources.end());
    00113     }
    00114
    00116     template<class T>
    00117     size_t count() const
    00118     {
    00119       size_t count=0;
    00120       for(unsigned i=0; i<mResources.size(); ++i)
    00121       {
    00122         const T* r = cast_const<T>(mResources[i].get());
    00123         if (r)
    00124           ++count;
    00125       }
    00126       return count;
    00127     }
    00128
    00130     template<class T>
    00131     const T* get(int j) const
    00132     {
    00133       int count=0;
    00134       for(unsigned i=0; i<mResources.size(); ++i)
    00135       {
    00136         const T* r = cast_const<T>(mResources[i].get());
    00137         if (r)
    00138         {
    00139           if (count == j)
    00140             return r;
    00141           else
    00142             ++count;
    00143         }
    00144       }
    00145       return NULL;
    00146     }
    00147
    00149     template<class T>
    00150     T* get(int j)
    00151     {
    00152       int count=0;
    00153       for(unsigned i=0; i<mResources.size(); ++i)
    00154       {
    00155         T* r = cast<T>(mResources[i].get());
    00156         if (r)
    00157         {
    00158           if (count == j)
    00159             return r;
    00160           else
    00161             ++count;
    00162         }
    00163       }
    00164       return NULL;
    00165     }
    00166
    00167   protected:
    00168     std::vector< ref<Object> > mResources;
    00169   };
    00170
    00172   VLCORE_EXPORT bool canLoad(const String& path);
    00173
    00175   VLCORE_EXPORT bool canWrite(const String& path);
    00176
    00178   VLCORE_EXPORT bool canLoad(VirtualFile* file);
    00179
    00181   VLCORE_EXPORT bool canWrite(VirtualFile* file);
    00182
    00184   VLCORE_EXPORT ref<ResourceDatabase> loadResource(const String& path, bool quick=true);
    00185
    00187   VLCORE_EXPORT ref<ResourceDatabase> loadResource(VirtualFile* file, bool quick=true);
    00188
    00190   VLCORE_EXPORT bool writeResource(const String& path, ResourceDatabase* resource);
    00191
    00193   VLCORE_EXPORT bool writeResource(VirtualFile* file, ResourceDatabase* resource);
    00194 }
    00195
    00196 #endif

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:31.
Permission is granted to use this page to write and publish articles regarding Visualization Library.