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-/***************************************************************************
- * Copyright (C) 2006-2008 by Ilya Kotov *
- * forkotov02@hotmail.ru *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-#ifndef PLAYLISTMODEL_H
-#define PLAYLISTMODEL_H
-
-#include <QObject>
-#include <QString>
-#include <QStringList>
-#include <QMap>
-#include <QPointer>
-#include <QVector>
-
-//#include "fileloader.h"
-class FileLoader;
-
-/**
- @author Ilya Kotov <forkotov02@hotmail.ru>
-*/
-
-class PlayListItem;
-class PlayState;
-class PlaylistFormat;
-class PlayListModel;
-
-struct SimpleSelection
-{
- SimpleSelection()
- {
- ;
- }
- inline bool isValid()const
- {
- return (m_bottom != -1) && (m_anchor != -1) && (m_top != -1);
- }
- inline void dump()const
- {
- qWarning("top: %d\tbotom: %d\tanchor: %d",m_top,m_bottom,m_anchor);
- }
- inline int count()const
- {
- return m_bottom - m_top + 1;
- }
- int m_bottom;
- int m_top;
- int m_anchor;
- QList<int>m_selected_rows;
-};
-
-/*!
- * Helper class used for tags update after details dialog closing.
- * @author Vladimir Kuznetsov <vovanec@gmail.com>
- */
-class TagUpdater : public QObject
-{
- Q_OBJECT
- QObject* m_observable;
- PlayListItem* m_item;
-public:
- TagUpdater(QObject* o, PlayListItem* item);
-protected slots:
- void updateTag();
-};
-
-
-class PlayListModel : public QObject
-{
- Q_OBJECT
-public:
- PlayListModel(QObject *parent = 0);
-
- ~PlayListModel();
-
- int count();
- PlayListItem* currentItem();
- int row(PlayListItem* item)const
- {
- return m_items.indexOf(item);
- }
- PlayListItem* item(int row)const
- {
- return m_items.at(row);
- }
- int currentRow();
- bool setCurrent (int);
- bool isSelected(int);
- void setSelected(int, bool);
-
- bool next();
- bool previous();
-
- QList <QString> getTitles(int,int);
- QList <QString> getTimes(int,int);
-
- void moveItems(int from,int to);
-
- /*!
- * Returns \b true if \b f file is in play queue, else return \b false
- */
- bool isQueued(PlayListItem* item) const;
-
- bool isRepeatableList()const
- {
- return is_repeatable_list;
- }
-
- /*!
- * Sets current song to the file that is nex in queue, if queue is empty - does nothing
- */
- void setCurrentToQueued();
-
- /*!
- * Returns \b true if play queue is empty,otherwise - \b false.
- */
- bool isEmptyQueue()const;
-
- /*!
- * Returns index of \b f file in queue.e
- */
- int queuedIndex(PlayListItem* item)const
- {
- return m_queued_songs.indexOf(item);
- }
-
- /*!
- * Returns current selection(playlist can contain a lot of selections,
- * this method returns selection which \b row belongs to)
- */
- const SimpleSelection& getSelection(int row);
-
- /*!
- * Returns vector with selected rows indexes.
- */
- QList<int> getSelectedRows()const;
- /*!
- * Returns vector of \b PlayListItem pointers that are selected.
- */
- QList<PlayListItem*> getSelectedItems()const;
-
- QList<PlayListItem*> items()const
- {
- return m_items;
- }
-
- /*!
- * Returns number of first item that selected upper the \b row item.
- */
- int firstSelectedUpper(int row);
-
- /*!
- * Returns number of first item that selected lower the \b row item.
- */
- int firstSelectedLower(int row);
-
- /*!
- * Returns total lenght in seconds of all songs.
- */
- int totalLength()const
- {
- return m_total_length;
- }
-
- /*!
- * Loads playlist with \b f_name name.
- */
- void loadPlaylist(const QString& f_name);
-
- /*!
- * Saves current songs to the playlist with \b f_name name.
- */
- void savePlaylist(const QString& f_name);
-
- /*!
- * Enum of available sort modes
- */
- enum SortMode
- {
- TITLE,FILENAME,PATH_AND_FILENAME,DATE,TRACK
- };
-
-signals:
- void listChanged();
- void currentChanged();
- void firstAdded();
-
-public slots:
- void load(PlayListItem *);
- void clear();
- void clearSelection();
- void removeSelected();
- void removeUnselected();
- void invertSelection();
- void selectAll();
- void showDetails();
- void doCurrentVisibleRequest();
-
- void addFile(const QString&);
-
- /*!
- * Adds the list \b l of files to the model.
- */
- void addFiles(const QStringList& l);
-
- /*!
- * Adds \b dir to the model.
- */
- void addDirectory(const QString& dir);
-
- /*!
- * Loads list of files (regular files or directories),
- * returns \b TRUE if at least one file has been successfully loaded,
- * otherwise \b FALSE
- */
- bool setFileList(const QStringList&);
-
- void addFileList(const QStringList &l);
-
- void randomizeList();
- void reverseList();
-
- /*!
- * Prepares model for shuffle playing. \b yes parameter is true - model iterates in shuffle mode.
- */
- void prepareForShufflePlaying(bool yes);
-
- /*!
- * Prepares model for shuffle playing. \b yes parameter is true - model iterates in repeat mode.
- */
- void prepareForRepeatablePlaying(bool);
-
- /*!
- * Sorts selected items in \b mode sort mode.
- */
- void sortSelection(int mode);
-
- /*!
- * Sorts items in \b mode sort mode.
- */
- void sort(int mode);
-
- /*!
- * Adds selected items to play queue.
- */
- void addToQueue();
-
- /*!
- * Sets \b f media file to queue.
- */
- void setQueued(PlayListItem* f);
-
- void preparePlayState();
-
-private:
-
- /*!
- * This internal method performs sorting of \b list_to_sort list of items.
- */
- void doSort(int mode,QList<PlayListItem*>& list_to_sort);
- /*!
- * Returns topmost row in current selection
- */
- int topmostInSelection(int);
-
- /*!
- * Returns bottommost row in current selection
- */
- int bottommostInSelection(int);
-
- /*!
- * Creates and initializes file loader object.
- */
- FileLoader* createFileLoader();
-
-
- /*!
- * Is someone of file loaders is running?
- */
- bool isFileLoaderRunning()const;
-
- /*!
- * Removes items from model. If \b inverted is \b false -
- * selected items will be removed, else - unselected.
- */
- void removeSelection(bool inverted = false);
-
-private:
-
- QList <PlayListItem*> m_items;
- QList <PlayListItem*> m_editing_items;
- PlayListItem* m_currentItem;
-
- int m_current;
- void readSettings();
- void writeSettings();
-
- void setUpdatesEnabled(bool);
-
- bool updatesEnabled()const
- {
- return !m_block_update_signals;
- }
-
- /*!
- * This flyweight object represents current selection.
- */
- SimpleSelection m_selection;
-
- /*!
- * Songs in play queue.
- */
- QList<PlayListItem*>m_queued_songs;
-
- /*!
- * Is playlist repeatable?
- */
- bool is_repeatable_list;
-
- /// Current playing state (Normal or Shuffle)
- PlayState* m_play_state;
-
- bool m_block_update_signals;
-
- int m_total_length;
-
- typedef QPointer<FileLoader> GuardedFileLoader;
-
- /*! Vector of currently running file loaders.
- * All loaders are automatically sheduled for deletion
- * when finished.
- */
- QVector<GuardedFileLoader> m_running_loaders;
-
- friend class MainWindow;
-};
-
-
-#endif
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