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Moved Registry::ReadFileCallback + WriteFileCallback, and osgDB::ReaderWriter::Options into their own separate Options file and into the osgDB namespace.

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Introduced a new callback osgDB::FindFileCallback that overrides the default behavior of findDataFile/findLibraryFile.

Introduced support for assigning ReaderWriter::Options directory to PagedLOD.

Introduced new osgDB::FileLocationCallback for assistancing the DatabasePager to know when a file is hosted on a local or remote file system.
This commit is contained in:
Robert Osfield
2009-05-11 11:39:12 +00:00
parent 67e0abf149
commit f939ea731e
16 changed files with 226 additions and 59 deletions
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41
include/osgDB/Options
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@@ -16,6 +16,7 @@
#include <osgDB/AuthenticationMap>
#include <osgDB/ReaderWriter>
#include <osgDB/FileCache>
#include <deque>
#include <list>
@@ -86,8 +87,27 @@ class OSGDB_EXPORT WriteFileCallback : public virtual osg::Referenced
virtual ~WriteFileCallback() {}
};
class OSGDB_EXPORT FileLocationCallback : public virtual osg::Referenced
{
public:
enum Location
{
LOCAL_FILE,
REMOTE_FILE
};
virtual Location fileLocation(const std::string& filename, const Options* options) = 0;
virtual bool useFileCache() const = 0;
protected:
virtual ~FileLocationCallback() {}
};
/** Options base class used for passing options into plugins to control their operation.*/
class Options : public osg::Object
class OSGDB_EXPORT Options : public osg::Object
{
public:
@@ -233,13 +253,27 @@ class Options : public osg::Object
ReadFileCallback* getReadFileCallback() const { return _readFileCallback.get(); }
/** Set the Registry callback to use in place of the default writeFile calls.*/
/** Set the callback to use in place of the default writeFile calls.*/
void setWriteFileCallback( WriteFileCallback* cb) { _writeFileCallback = cb; }
/** Get the const writeFile callback.*/
WriteFileCallback* getWriteFileCallback() const { return _writeFileCallback.get(); }
/** Set the callback to use inform the DatabasePager whether a file is located on local or remote file system..*/
void setFileLocationCallback( FileLocationCallback* cb) { _fileLocationCallback = cb; }
/** Get the callback to use inform the DatabasePager whether a file is located on local or remote file system..*/
FileLocationCallback* getFileLocationCallback() const { return _fileLocationCallback.get(); }
/** Set the FileCache that is used to manage local storage of files downloaded from the internet.*/
void setFileCache(FileCache* fileCache) { _fileCache = fileCache; }
/** Get the FileCache that is used to manage local storage of files downloaded from the internet.*/
FileCache* getFileCache() const { return _fileCache.get(); }
protected:
virtual ~Options() {}
@@ -258,6 +292,9 @@ class Options : public osg::Object
osg::ref_ptr<FindFileCallback> _findFileCallback;
osg::ref_ptr<ReadFileCallback> _readFileCallback;
osg::ref_ptr<WriteFileCallback> _writeFileCallback;
osg::ref_ptr<FileLocationCallback> _fileLocationCallback;
osg::ref_ptr<FileCache> _fileCache;
};
}