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// Copyright (c) 2003 Charles Samuels <charles@kde.org>
// See the file COPYING for redistribution terms.
#ifndef SELECTOR_H
#define SELECTOR_H
#include <noatun/playlist.h>
#include "file.h"
class Item : public PlaylistItemData
{
File mFile;
public:
Item(const File &file);
File itemFile() const { return mFile; }
virtual QString property(const QString &key, const QString &def=0) const;
virtual void setProperty(const QString &key, const QString &property);
virtual void clearProperty (const QString &key);
virtual QStringList properties() const;
virtual bool isProperty(const QString &key) const;
virtual bool operator==(const PlaylistItemData &d) const;
virtual void remove();
};
/**
* a selector is an object that can get items from the
* playlist in a certain order
**/
class Selector
{
public:
Selector();
virtual ~Selector();
virtual Item *next()=0;
virtual Item *previous()=0;
virtual Item *current()=0;
virtual void setCurrent(const Item &item)=0;
};
class Tree;
class TreeItem;
class SequentialSelector : public Selector
{
Tree *mTree;
public:
SequentialSelector(Tree *tree);
virtual ~SequentialSelector();
virtual Item *next();
virtual Item *previous();
virtual Item *current();
virtual void setCurrent(const Item &item);
virtual void setCurrent(TreeItem *current);
};
class RandomSelector : public Selector
{
Tree *mTree;
TreeItem *mPrevious;
public:
RandomSelector(Tree *tree);
virtual Item *next();
virtual Item *previous();
virtual Item *current();
virtual void setCurrent(const Item &item);
virtual void setCurrent(TreeItem *item, TreeItem *previous);
};
#endif
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