root/OpenSceneGraph/trunk/include/osgDB/Callbacks @ 13041

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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version.  The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSGDB_CALLBACKS
15#define OSGDB_CALLBACKS 1
16
17#include <osgDB/AuthenticationMap>
18#include <osgDB/ReaderWriter>
19#include <osgDB/FileCache>
20
21#include <deque>
22#include <list>
23#include <iosfwd>
24
25namespace osgDB {
26
27/** list of directories to search through which searching for files. */
28typedef std::deque<std::string> FilePathList;
29
30enum CaseSensitivity
31{
32    CASE_SENSITIVE,
33    CASE_INSENSITIVE
34};
35
36// forward decare
37class Options;
38
39class OSGDB_EXPORT FindFileCallback : public virtual osg::Referenced
40{
41    public:
42
43        virtual std::string findDataFile(const std::string& filename, const Options* options, CaseSensitivity caseSensitivity);
44
45        virtual std::string findLibraryFile(const std::string& filename, const Options* options, CaseSensitivity caseSensitivity);
46
47    protected:
48        virtual ~FindFileCallback() {}
49};
50
51
52class OSGDB_EXPORT ReadFileCallback : public virtual osg::Referenced
53{
54    public:
55
56        virtual ReaderWriter::ReadResult openArchive(const std::string& filename,ReaderWriter::ArchiveStatus status, unsigned int indexBlockSizeHint, const Options* useObjectCache);
57
58        virtual ReaderWriter::ReadResult readObject(const std::string& filename, const Options* options);
59
60        virtual ReaderWriter::ReadResult readImage(const std::string& filename, const Options* options);
61
62        virtual ReaderWriter::ReadResult readHeightField(const std::string& filename, const Options* options);
63
64        virtual ReaderWriter::ReadResult readNode(const std::string& filename, const Options* options);
65
66        virtual ReaderWriter::ReadResult readShader(const std::string& filename, const Options* options);
67
68    protected:
69        virtual ~ReadFileCallback() {}
70};
71
72class OSGDB_EXPORT WriteFileCallback : public virtual osg::Referenced
73{
74    public:
75
76        virtual ReaderWriter::WriteResult writeObject(const osg::Object& obj, const std::string& fileName,const Options* options);
77
78        virtual ReaderWriter::WriteResult writeImage(const osg::Image& obj, const std::string& fileName,const Options* options);
79
80        virtual ReaderWriter::WriteResult writeHeightField(const osg::HeightField& obj, const std::string& fileName,const Options* options);
81
82        virtual ReaderWriter::WriteResult writeNode(const osg::Node& obj, const std::string& fileName,const Options* options);
83
84        virtual ReaderWriter::WriteResult writeShader(const osg::Shader& obj, const std::string& fileName,const Options* options);
85
86    protected:
87        virtual ~WriteFileCallback() {}
88};
89
90class OSGDB_EXPORT FileLocationCallback : public virtual osg::Referenced
91{
92    public:
93
94        enum Location
95        {
96            LOCAL_FILE,
97            REMOTE_FILE
98        };
99
100        virtual Location fileLocation(const std::string& filename, const Options* options) = 0;
101
102        virtual bool useFileCache() const = 0;
103
104    protected:
105        virtual ~FileLocationCallback() {}
106};
107
108}
109
110#endif // OSGDB_OPTIONS
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