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annotate engine/core/vfs/vfssourceprovider.h @ 130:b49714fff478

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* Workaround for Segfault_in_cxa_allocate_exception: http://wiki.fifengine.de/Segfault_in_cxa_allocate_exception * Full credit goes to Yonibear from OpenAnno who tracked down the issue
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 18 Aug 2008 23:11:32 +0000
parents 90005975cdbb
children
rev   line source
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 #ifndef FIFE_VFS_VFSSOURCEPROVIDER_H
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23 #define FIFE_VFS_VFSSOURCEPROVIDER_H
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24
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25 // Standard C++ library includes
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26 #include <string>
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27
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28 // 3rd party library includes
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29
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30 // FIFE includes
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31 // These includes are split up in two parts, separated by one empty line
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32 // First block: files included from the FIFE root src directory
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33 // Second block: files included from the same folder
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34 #include "util/base/exception.h"
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35
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36 namespace FIFE {
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37
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38 class VFSSource;
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39
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40 /** VFSSourceProvider abstract baseclass
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41 *
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42 * If you add support for a new archive-type (like the fallout1&dat files) you should
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43 * also create a new VFSSourceProvider for your VFSSource - once this is done
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44 * its very easy to load new archives even without knowing their real type.
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45 * @see VFS
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46 * @see VFSSource
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47 * @see VFSSourceFactory
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48 */
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49 class VFSSourceProvider{
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50 public:
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51 VFSSourceProvider(const std::string& name);
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52 virtual ~VFSSourceProvider();
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53
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54 /** Returns the name of this VFSSourceProvider
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55 *
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56 * @return name
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57 */
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58 const std::string& getName() const;
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59
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60 /** Get the VFS this provider is using. Providers will not be able to locate
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61 * sources before a VFS is set. VFS::addProvider sets this automatically.
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62 */
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63 void setVFS(VFS* vfs);
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64
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65 VFS* getVFS() const {
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66 if(!m_vfs) throw NotSet("Attempt to load from VFSSourceProvider without setting a VFS!");
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67 return m_vfs;
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68 }
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69
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70 /** Check if a given file is readable for this VFSSource
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71 *
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72 *
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73 * @param file the filename to check
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74 * @return true if readable, false otherwise
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75 */
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76 virtual bool isReadable(const std::string& file) const = 0;
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77
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78 /** Create a new instance of a VFSSource initialized with the given file
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79 *
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80 * @param file the filename to open (the archive-file)
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81 * @return the new VFSSource
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82 */
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83 virtual VFSSource* createSource(const std::string& file) const = 0;
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84
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85 private:
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86
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87 VFS* m_vfs;
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88 std::string m_name;
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89 };
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90 }
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91
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92 #endif