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/*!
* \file mgmedia.h
* \brief Top level access to media in vdr plugin muggle
*
* \version $Revision: 1.11 $
* \date $Date: 2004/05/28 15:29:18 $
* \author Ralf Klueber, Lars von Wedel, Andreas Kellner
* \author Responsible author: $Author: lvw $
*/
// makes sure we dont use parse the same declarations twice
#ifndef _MG_MEDIA_H
#define _MG_MEDIA_H
#include <string>
#include <vector>
#include <mysql/mysql.h>
class mgPlaylist;
class mgTracklist;
class mgSelectionTreeNode;
class mgFilter;
class mgFilterSets;
/*!
* \class mgFilterSets
*
* Represents one or several sets of filters to set and memorize search constraint
*/
class mgFilterSets
{
protected:
int m_activeSetId;
std::vector<mgFilter*> *m_activeSet; // pointer to the active filter set
// stores name-value pairs, even if a different set is active
std::vector< std::vector<mgFilter*>*> m_sets;
// stores the titles for all filters
std::vector<std::string> m_titles;
public:
// constructor, constracts a number >=1 of filter sets
// the first set (index 0 ) is active by default
mgFilterSets();
// destructor
virtual ~mgFilterSets();
// returns the number of available sets
int numSets();
// proceeds to the next one in a circular fashion
void nextSet();
// activates a specific set by index
void select(int n);
// restores the default values for all filter values in the active set
// normally, the default values represent 'no restrictions'
virtual void clear();
// stores the current filter values
void accept();
// returns the active set to the application
// the application may temporarily modify the filter values
// accept() needs to be called to memorize the changed values
std::vector<mgFilter*> *getFilters();
// computes the (e.g. sql-) restrictions specified by the active filter set
// and returns the index of the appropriate defualt view in viewPrt
virtual std::string computeRestriction(int *viewPrt)=0;
// returns title of active filter set
std::string getTitle();
};
/*!
* \class mgMedia
*
* \brief main class to access content in the vdr plugin muggle
*
* The constructor of this class should be the only point in the plugin,
* where the data type is explicitelymentioned.
* The class provides a set of objects that abstract from the data
* type and source
*/
class mgMedia
{
public:
typedef enum contentType
{
GD_MP3
} contentType;
private:
MYSQL m_db;
contentType m_mediatype;
std::string m_sql_filter;
int m_defaultView;
mgFilterSets *m_filters;
public:
mgMedia(contentType mediatype);
~mgMedia();
std::string getMediaTypeName();
mgSelectionTreeNode* getSelectionRoot();
// playlist management
mgPlaylist* createTemporaryPlaylist();
mgPlaylist* loadPlaylist( std::string name );
std::vector<std::string> *getStoredPlaylists();
std::vector<int> getDefaultCols();
mgTracklist* getTracks();
// filter management
void initFilterSet(int num=0);
// creates FiliterSetObject for the selected media type
// and activates set n (if available)
std::vector<mgFilter*> *getActiveFilters();
// returns pointer to the activen filter set to be modified by the osd
// Note: Modifications become only active by calling applyActiveFilter()
std::string getActiveFilterTitle();
void nextFilterSet();
// proceeds to the next filter set in a cirlucar fashion
void clearActiveFilter();
// clears the current filter values and restores defaults
mgSelectionTreeNode *applyActiveFilter();
// Applies the active filter set and returns a root node for the
// selection in the default view for this filter set
};
/* -------------------- begin CVS log ---------------------------------
* $Log: mg_media.h,v $
* Revision 1.11 2004/05/28 15:29:18 lvw
* Merged player branch back on HEAD branch.
*
* Revision 1.10 2004/02/12 09:15:07 LarsAC
* Moved filter classes into separate files
*
* Revision 1.9.2.2 2004/05/25 00:10:45 lvw
* Code cleanup and added use of real database source files
*
* Revision 1.9.2.1 2004/03/02 07:05:50 lvw
* Initial adaptations from MP3 plugin added (untested)
*
* Revision 1.10 2004/02/12 09:15:07 LarsAC
* Moved filter classes into separate files
*
* Revision 1.9 2004/02/09 22:07:44 RaK
* secound filter set (album search incl. special view #101
*
* Revision 1.8 2004/02/09 19:27:52 MountainMan
* filter set implemented
*
* Revision 1.7 2004/02/02 23:33:41 MountainMan
* impementation of gdTrackFilters
*
* Revision 1.6 2004/02/02 22:48:04 MountainMan
* added CVS $Log
*
*
* --------------------- end CVS log ----------------------------------
*/
#endif /* END _MG_MEDIA_H */
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