Members of the KDE Community are recommended to subscribe to the kde-community mailing list at https://mail.kde.org/mailman/listinfo/kde-community to allow them to participate in important discussions and receive other important announcements

playlist.h 22.9 KB
Newer Older
1 2
/***************************************************************************
    begin                : Sat Feb 16 2002
3
    copyright            : (C) 2002 - 2004 by Scott Wheeler
4
    email                : wheeler@kde.org
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef PLAYLIST_H
#define PLAYLIST_H

#include <klistview.h>
20
#include <kurldrag.h>
Dirk Mueller's avatar
compile  
Dirk Mueller committed
21
#include <kdebug.h>
22
#include <kglobalsettings.h>
23

24
#include <qvaluevector.h>
Dirk Mueller's avatar
compile  
Dirk Mueller committed
25
#include <qfileinfo.h>
26

27
#include "stringhash.h"
Scott Wheeler's avatar
Scott Wheeler committed
28
#include "playlistsearch.h"
29
#include "tagguesser.h"
30
#include "playlistinterface.h"
31 32

class KPopupMenu;
33
class KActionMenu;
34 35

class QEvent;
Scott Wheeler's avatar
Scott Wheeler committed
36

37
class PlaylistCollection;
Scott Wheeler's avatar
Scott Wheeler committed
38 39

class PlaylistItem;
40
class PlaylistToolTip;
41 42
class UpcomingPlaylist;

Scott Wheeler's avatar
Scott Wheeler committed
43
typedef QValueList<PlaylistItem *> PlaylistItemList;
44

45 46
typedef QValueList<Playlist *> PlaylistList;

47
class Playlist : public KListView, public PlaylistInterface
48 49
{
    Q_OBJECT
50

51
public:
52

53 54 55 56 57 58
    Playlist(PlaylistCollection *collection, const QString &name = QString::null,
	     const QString &iconName = "midi");
    Playlist(PlaylistCollection *collection, const PlaylistItemList &items,
	     const QString &name = QString::null, const QString &iconName = "midi");
    Playlist(PlaylistCollection *collection, const QFileInfo &playlistFile,
	     const QString &iconName = "midi");
59

60
    /**
61 62 63
     * This constructor should generally only be used either by the cache
     * restoration methods or by subclasses that want to handle calls to
     * PlaylistCollection::setupPlaylist() differently.
64
     */
65
    Playlist(PlaylistCollection *collection, bool delaySetup);
66

67 68
    virtual ~Playlist();

69 70 71 72 73 74 75 76 77 78 79

    // The following group of functions implement the PlaylistInterface API.

    virtual QString name() const;
    virtual FileHandle currentFile() const;
    virtual int count() const { return childCount(); }
    virtual int time() const;
    virtual void playNext();
    virtual void playPrevious();
    virtual void stop();

80 81 82
    /**
     * Plays the top item of the playlist.
     */
83 84
    void playFirst();

85 86 87 88 89 90
    /**
     * Plays the next album in the playlist.  Only useful when in album random
     * play mode.
     */
    void playNextAlbum();

91 92 93
    /**
     * Saves the file to the currently set file name.  If there is no filename
     * currently set, the default behavior is to prompt the user for a file
94
     * name.
95
     */
96
    virtual void save();
Scott Wheeler's avatar
Scott Wheeler committed
97 98 99 100 101

    /**
     * Standard "save as".  Prompts the user for a location where to save the
     * playlist to.
     */
102
    virtual void saveAs();
Scott Wheeler's avatar
Scott Wheeler committed
103 104 105 106 107 108 109 110 111 112 113

    /**
     * Removes \a item from the Playlist, but not from the disk.  If
     * \a emitChanged is true this will also notify relevant classes
     * that the content of the list has changed.
     *
     * In some situations, for instance when removing items in a loop, it is
     * preferable to delay this notification until after other operations have
     * completed.  In those cases set \a emitChanged to false and call the
     * signal directly.
     */
114
    virtual void clearItem(PlaylistItem *item, bool emitChanged = true);
Scott Wheeler's avatar
Scott Wheeler committed
115 116 117 118 119

    /**
     * Remove \a items from the playlist and emit a signal indicating
     * that the number of items in the list has changed.
     */
120
    virtual void clearItems(const PlaylistItemList &items);
121

122 123 124 125 126 127
    /**
     * Accessor function to return a pointer to the currently playing file.
     *
     * @return 0 if no file is playing, otherwise a pointer to the PlaylistItem
     *     of the track that is currently playing.
     */
128
    static PlaylistItem *playingItem();
129

130 131
    /**
     * All of the (media) files in the list.
132
     */
133
    QStringList files() const;
134

135
    /**
Scott Wheeler's avatar
Scott Wheeler committed
136
     * Returns a list of all of the items in the playlist.
137
     */
138
    virtual PlaylistItemList items();
139

140
    /**
Scott Wheeler's avatar
Scott Wheeler committed
141
     * Returns a list of all of the \e visible items in the playlist.
142
     */
143
    PlaylistItemList visibleItems();
144

145 146 147
    /**
     * Returns a list of the currently selected items.
     */
148
    PlaylistItemList selectedItems();
149

150 151 152 153 154
    /**
     * Returns properly casted first child item in list.
     */
    PlaylistItem *firstChild() const;

155 156
    /**
     * Allow duplicate files in the playlist.
157
     */
158
    void setAllowDuplicates(bool allow) { m_allowDuplicates = allow; }
159

160
    /**
161
     * This is being used as a mini-factory of sorts to make the construction
162 163
     * of PlaylistItems virtual.  In this case it allows for the creation of
     * both PlaylistItems and CollectionListItems.
164
     */
165
    virtual PlaylistItem *createItem(const FileHandle &file,
166 167
				     QListViewItem *after = 0,
				     bool emitChanged = true);
168

Scott Wheeler's avatar
Scott Wheeler committed
169 170 171 172 173 174 175
    /**
     * This is implemented as a template method to allow subclasses to
     * instantiate their PlaylistItem subclasses using the same method.  Some
     * of the types here are artificially templatized (i.e. CollectionListType and
     * CollectionItemType) to avoid recursive includes, but in fact will always
     * be the same.     
     */
176
    template <class ItemType, class CollectionItemType, class CollectionListType>
177
    ItemType *createItem(const FileHandle &file,
178 179 180
			 QListViewItem *after = 0,
			 bool emitChanged = true);

181
    virtual void createItems(const PlaylistItemList &siblings, PlaylistItem *after = 0);
182

183 184 185 186
    /**
     * This handles adding files of various types -- music, playlist or directory
     * files.  Music files that are found will be added to this playlist.  New
     * playlist files that are found will result in new playlists being created.
187 188 189 190
     *
     * Note that this should not be used in the case of adding *only* playlist
     * items since it has the overhead of checking to see if the file is a playlist
     * or directory first.
191 192 193 194
     */
    void addFiles(const QStringList &files, bool importPlaylists,
		  PlaylistItem *after = 0);

195 196 197 198
    /**
     * Returns the file name associated with this playlist (an m3u file) or
     * QString::null if no such file exists.
     */
199
    QString fileName() const { return m_fileName; }
200 201 202 203 204

    /**
     * Sets the file name to be associated with this playlist; this file should
     * have the "m3u" extension.
     */
205
    void setFileName(const QString &n) { m_fileName = n; }
206

207
    /**
208
     * Hides column \a c.  If \a updateSearch is true then a signal that the
209 210 211
     * visible columns have changed will be emitted and things like the search
     * will be udated.
     */
212
    void hideColumn(int c, bool updateSearch = true);
213 214

    /**
215
     * Shows column \a c.  If \a updateSearch is true then a signal that the
216 217 218
     * visible columns have changed will be emitted and things like the search
     * will be udated.
     */
219
    void showColumn(int c, bool updateSearch = true);
220 221
    bool isColumnVisible(int c) const;

222 223 224 225
    /**
     * This sets a name for the playlist that is \e different from the file name.
     */
    void setName(const QString &n);
226

227 228 229 230
    /**
     * Returns the KActionMenu that allows this to be embedded in menus outside
     * of the playlist.
     */
231
    KActionMenu *columnVisibleAction() const { return m_columnVisibleAction; }
232

233
    /**
234 235
     * Set item to be the playing item.  If \a item is null then this will clear
     * the playing indicator.
236
     */
237
    static void setPlaying(PlaylistItem *item, bool addToHistory = true);
238 239 240 241

    /**
     * Returns true if this playlist is currently playing.
     */
Scott Wheeler's avatar
Scott Wheeler committed
242
    bool playing() const;
243

Scott Wheeler's avatar
Scott Wheeler committed
244 245 246
    /**
     * This forces an update of the left most visible column, but does not save
     * the settings for this.
247
     */
Scott Wheeler's avatar
Scott Wheeler committed
248
    void updateLeftColumn();
249

250 251 252 253 254
    /**
     * Returns the leftmost visible column of the listview.
     */
    int leftColumn() const { return m_leftColumn; }

255 256 257 258
    /**
     * Sets the items in the list to be either visible based on the value of
     * visible.  This is useful for search operations and such.
     */
259 260
    static void setItemsVisible(const PlaylistItemList &items, bool visible = true);

261 262 263 264
    /**
     * Returns the search associated with this list, or an empty search if one
     * has not yet been set.
     */
Scott Wheeler's avatar
Scott Wheeler committed
265
    PlaylistSearch search() const { return m_search; }
266 267 268 269

    /**
     * Set the search associtated with this playlist.
     */
270 271 272 273 274 275 276
    void setSearch(const PlaylistSearch &s);

    /**
     * If the search is disabled then all items will be shown, not just those that
     * match the current search.
     */
    void setSearchEnabled(bool searchEnabled);
Scott Wheeler's avatar
Scott Wheeler committed
277

Scott Wheeler's avatar
Scott Wheeler committed
278 279 280
    /**
     * Marks \a item as either selected or deselected based.
     */
281 282
    void markItemSelected(PlaylistItem *item, bool selected);

Scott Wheeler's avatar
Scott Wheeler committed
283 284 285 286 287 288
    /**
     * Subclasses of Playlist which add new columns will set this value to
     * specify how many of those colums exist.  This allows the Playlist
     * class to do some internal calculations on the number and positions
     * of columns.
     */
289
    virtual int columnOffset() const { return 0; }
Scott Wheeler's avatar
Scott Wheeler committed
290 291 292 293 294 295

    /**
     * Some subclasses of Playlist will be "read only" lists (i.e. the history
     * playlist).  This is a way for those subclasses to indicate that to the
     * Playlist internals.
     */
296
    virtual bool readOnly() const { return false; }
297

298 299 300 301 302
    /**
     * Returns true if it's possible to reload this playlist.
     */
    virtual bool canReload() const { return !m_fileName.isNull(); }

303 304 305 306 307 308
    /**
     * Returns true if the playlist is a search playlist and the search should be
     * editable.
     */
    virtual bool searchIsEditable() const { return false; }

309 310 311 312 313 314 315
    /**
     * Synchronizes the the playing item in this playlist with the playing item
     * in \a sources.  If \a setMaster is true, this list will become the source
     * for determining the next item.
     */
    void synchronizePlayingItems(const PlaylistList &sources, bool setMaster);

316 317 318 319 320 321 322
    /**
     * Playlists have a common set of shared settings such as visible columns
     * that should be applied just before the playlist is shown.  Calling this
     * method applies those.
     */
    void applySharedSettings();

323 324
    void read(QDataStream &s);

325
public slots:
326
    /**
327
     * Remove the currently selected items from the playlist and disk.
328
     */
329
    void slotRemoveSelectedItems() { removeFromDisk(selectedItems()); };
Scott Wheeler's avatar
Scott Wheeler committed
330

331 332 333 334
    /*
     * The edit slots are required to use the canonical names so that they are
     * detected by the application wide framework.
     */
335
    virtual void cut() { copy(); clear(); }
Scott Wheeler's avatar
Scott Wheeler committed
336 337 338 339 340

    /**
     * Puts a list of URLs pointing to the files in the current selection on the
     * clipboard.
     */
341
    virtual void copy();
Scott Wheeler's avatar
Scott Wheeler committed
342 343 344 345

    /**
     * Checks the clipboard for local URLs to be inserted into this playlist.
     */
346
    virtual void paste();
Scott Wheeler's avatar
Scott Wheeler committed
347 348 349 350 351 352 353

    /**
     * Removes the selected items from the list, but not the disk.
     *
     * @see clearItem()
     * @see clearItems()
     */
354
    virtual void clear();
355
    virtual void selectAll() { KListView::selectAll(true); }
356

357 358 359 360 361 362
    /**
     * Refreshes the tags of the selection from disk, or all of the files in the
     * list if there is no selection.
     */
    virtual void slotRefresh();

363
    void slotGuessTagInfo(TagGuesser::Type type);
Scott Wheeler's avatar
Scott Wheeler committed
364 365 366 367 368 369

    /**
     * Renames the selected items' files based on their tags contents.
     *
     * @see PlaylistItem::renameFile()
     */
370 371
    void slotRenameFile();

372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387
    /**
     * Sets the cover of the selected items, pass in true if you want to load from the local system,
     * false if you want to load from the internet.
     */
    void slotAddCover(bool fromLocal);

    /**
     * Shows a large image of the cover
     */
    void slotViewCover();

    /**
     * Removes covers from the selected items
     */
    void slotRemoveCover();

388 389 390
    /**
     * Reload the playlist contents from the m3u file.
     */
391
    virtual void slotReload();
392

393 394 395 396 397
    /**
     * Tells the listview that the next time that it paints that the weighted
     * column widths must be recalculated.  If this is called without a column
     * all visible columns are marked as dirty.
     */
398
    void slotWeightDirty(int column = -1);
399

400 401
    void slotShowPlaying();

402 403
    void slotColumnResizeModeChanged();

404 405
    virtual void dataChanged();

406
protected:
407 408 409 410
    /**
     * Remove \a items from the playlist and disk.  This will ignore items that
     * are not actually in the list.
     */
411
    void removeFromDisk(const PlaylistItemList &items);
412

413 414 415
    // the following are all reimplemented from base classes

    virtual bool eventFilter(QObject *watched, QEvent *e);
416
    virtual QDragObject *dragObject(QWidget *parent);
417
    virtual QDragObject *dragObject() { return dragObject(this); }
418
    virtual bool canDecode(QMimeSource *s);
419
    virtual void decode(QMimeSource *s, PlaylistItem *item = 0);
420
    virtual void contentsDropEvent(QDropEvent *e);
421
    virtual void contentsMouseDoubleClickEvent(QMouseEvent *e);
Scott Wheeler's avatar
Scott Wheeler committed
422
    virtual void showEvent(QShowEvent *e);
423
    virtual bool acceptDrag(QDropEvent *e) const { return KURLDrag::canDecode(e); }
424 425 426
    virtual void viewportPaintEvent(QPaintEvent *pe);
    virtual void viewportResizeEvent(QResizeEvent *re);

427 428 429
    virtual void insertItem(QListViewItem *item);
    virtual void takeItem(QListViewItem *item);

430 431
    virtual bool hasItem(const QString &file) const { return m_members.contains(file); }

432
    void addColumn(const QString &label);
Scott Wheeler's avatar
Scott Wheeler committed
433 434 435 436 437 438 439 440

    /**
     * Here I'm using delayed setup of some things that aren't quite intuitive.
     * Creating columns and setting up connections are both time consuming if
     * there are a lot of playlists to initialize.  This moves that cost from the
     * startup time to the time when the widget is "polished" -- i.e. just before
     * it's painted the first time.
     */
441
    virtual void polish();
442

443 444 445 446
    UpcomingPlaylist *upcomingPlaylist() const { return m_upcomingPlaylist; }

    void setUpcomingPlaylist(UpcomingPlaylist *playlist) { m_upcomingPlaylist = playlist; }

447 448 449 450 451 452 453 454
    /**
     * Do some finial initialization of created items.  Notably ensure that they
     * are shown or hidden based on the contents of the current PlaylistSearch.
     *
     * This is called by the PlaylistItem constructor.
     */
    void setupItem(PlaylistItem *item);

455 456 457 458 459 460
    /**
     * Forwards the call to the parent to enable or disable automatic deletion
     * of tree view playlists.  Used by CollectionListItem.
     */
    void setCanDeletePlaylist(bool canDelete);

461 462 463
    template <class ItemType, class SiblingType>
    ItemType *createItem(SiblingType *sibling, ItemType *after = 0);

464 465 466 467 468 469
    /**
     * As a template this allows us to use the same code to initialize the items
     * in subclasses.  CollectionItemType should always be CollectionListItem and
     * ItemType should be a PlaylistItem subclass.
     */
    template <class CollectionItemType, class ItemType, class SiblingType>
470
    void createItems(const QValueList<SiblingType *> &siblings, ItemType *after = 0);
471

472 473 474 475
protected slots:
    void slotPopulateBackMenu() const;
    void slotPlayFromBackMenu(int number) const;

476
signals:
477

478
    /**
479
     * This is connected to the PlaylistBox::Item to let it know when the
480 481
     * playlist's name has changed.
     */
482
    void signalNameChanged(const QString &name);
483

484
    /**
485
     * This signal is emitted just before a playlist item is removed from the
486 487 488
     * list allowing for any cleanup that needs to happen.  Typically this
     * is used to remove the item from the history and safeguard against
     * dangling pointers.
489
     */
490
    void signalAboutToRemove(PlaylistItem *item);
491

492 493
    void signalEnableDirWatch(bool enable);

494 495
    void coverChanged();

496 497
    void signalPlaylistItemsDropped(Playlist *p);

498 499
private:
    void setup();
500 501 502 503 504 505 506

    /**
     * Load the playlist from a file.  \a fileName should be the absolute path.
     * \a fileInfo should point to the same file as \a fileName.  This is a
     * little awkward API-wise, but keeps us from throwing away useful
     * information.
     */
507
    void loadFile(const QString &fileName, const QFileInfo &fileInfo);
508

509
    /**
Scott Wheeler's avatar
Scott Wheeler committed
510
     * Writes \a text to \a item in \a column.  This is used by the inline tag
511
     * editor.  Returns false if the tag update failed.
512
     */
513
    bool editTag(PlaylistItem *item, const QString &text, int column);
514 515 516 517 518 519

    /**
     * Returns the index of the left most visible column in the playlist.
     *
     * \see isColumnVisible()
     */
520
    int leftMostVisibleColumn() const;
521

522 523 524 525 526 527 528 529 530 531
    /**
     * This method is used internally to provide the backend to the other item
     * lists.
     *
     * \see items()
     * \see visibleItems()
     * \see selectedItems()
     */
    PlaylistItemList items(QListViewItemIterator::IteratorFlag flags);

532 533 534 535 536
    /**
     * Build the column "weights" for the weighted width mode.
     */
    void calculateColumnWeights();

537 538 539 540
    void addFile(const QString &file, FileHandleList &files, bool importPlaylists,
		 PlaylistItem **after);
    void addFileHelper(FileHandleList &files, bool importPlaylists,
		       PlaylistItem **after, bool ignoreTimer = false);
541 542 543

    void redisplaySearch() { setSearch(m_search); }

544
    void refreshAlbums(const PlaylistItemList &items, const QImage &image = QImage());
545 546
    void refreshAlbum(const QString &artist, const QString &album);

547 548
    void updatePlaying() const;

549 550 551 552 553 554
    /**
     * This class is used internally to store settings that are shared by all
     * of the playlists, such as column order.  It is implemented as a singleton.
     */
    class SharedSettings;

555
private slots:
556

557 558
    void slotUpdateColumnWidths();

559 560
    void slotAddToUpcoming();

561 562 563 564
    /**
     * Show the RMB menu.  Matches the signature for the signal 
     * QListView::contextMenuRequested().
     */
565
    void slotShowRMBMenu(QListViewItem *item, const QPoint &point, int column);
566 567

    /**
Scott Wheeler's avatar
Scott Wheeler committed
568 569
     * This slot is called when the inline tag editor has completed its editing
     * and starts the process of renaming the values.
570
     *
Scott Wheeler's avatar
Scott Wheeler committed
571
     * \see editTag()
572
     */
Scott Wheeler's avatar
Scott Wheeler committed
573
    void slotInlineEditDone(QListViewItem *, const QString &, int column);
574 575 576 577 578

    /**
     * This starts the renaming process by displaying a line edit if the mouse is in 
     * an appropriate position.
     */
579
    void slotRenameTag();
580 581 582 583 584

    /**
     * Moves the column \a from to the position \a to.  This matches the signature
     * for the signal QHeader::indexChange().
     */
585
    void slotColumnOrderChanged(int, int from, int to);
586 587 588 589 590 591 592

    /**
     * Toggles a columns visible status.  Useful for KActions.
     *
     * \see hideColumn()
     * \see showColumn()
     */
593
    void slotToggleColumnVisible(int column);
594

595 596 597
    /**
     * Prompts the user to create a new playlist with from the selected items.
     */
598
    void slotCreateGroup();
599

600 601 602 603 604 605
    /**
     * This slot is called when the user drags the slider in the listview header
     * to manually set the size of the column.
     */
    void slotColumnSizeChanged(int column, int oldSize, int newSize);

606 607 608 609 610 611 612 613
    /**
     * The slot is called when the completion mode for the line edit in the
     * inline tag editor is changed.  It saves the settings and through the
     * magic of the SharedSettings class will apply it to the other playlists as
     * well.
     */
    void slotInlineCompletionModeChanged(KGlobalSettings::Completion mode);

614 615
    void slotPlayCurrent();

616
private:
617 618
    PlaylistCollection *m_collection;

619
    StringHash m_members;
620

621
    int m_currentColumn;
622
    int m_processed;
623
    int m_rmbEditID;
624
    int m_rmbUpcomingID;
625 626
    int m_selectedCount;

627
    bool m_allowDuplicates;
628
    bool m_polished;
629
    bool m_applySharedSettings;
630
    bool m_mousePressed;
631

632
    QValueList<int> m_weightDirty;
633
    bool m_disableColumnWidthUpdates;
634

635 636 637 638
    mutable int m_time;
    mutable PlaylistItemList m_addTime;
    mutable PlaylistItemList m_subtractTime;

639
    /**
640
     * The average minimum widths of columns to be used in balancing calculations.
641
     */
642
    QValueVector<int> m_columnWeights;
643 644
    QValueVector<int> m_columnFixedWidths;
    bool m_widthsDirty;
645 646

    PlaylistItemList m_randomList;
647
    static PlaylistItemList m_history;
648
    PlaylistSearch m_search;
649

650 651
    bool m_searchEnabled;

652
    PlaylistItem *m_lastSelected;
653

654
    /**
655
     * Used to store the text for inline editing before it is changed so that
656 657 658 659
     * we can know if something actually changed and as such if we need to save
     * the tag.
     */
    QString m_editText;
660 661 662 663 664

    /**
     * This is only defined if the playlist name is something other than the
     * file name.
     */
665
    QString m_playlistName;
666
    QString m_fileName;
667

668 669 670
    KPopupMenu *m_rmbMenu;
    KPopupMenu *m_headerMenu;
    KActionMenu *m_columnVisibleAction;
671
    PlaylistToolTip *m_toolTip;
672

673 674 675 676 677
    /**
     * This is used to indicate if the list of visible items has changed (via a 
     * call to setVisibleItems()) while random play is playing.
     */
    static bool m_visibleChanged;
678
    static int m_leftColumn;
679
    static UpcomingPlaylist *m_upcomingPlaylist;
680
    static QMap<int, PlaylistItem *> m_backMenuItems;
681 682

    bool m_blockDataChanged;
683 684
};

685
bool processEvents();
686

687
QDataStream &operator<<(QDataStream &s, const Playlist &p);
688 689
QDataStream &operator>>(QDataStream &s, Playlist &p);

690 691
// template method implementations

692
template <class ItemType, class CollectionItemType, class CollectionListType>
693 694
ItemType *Playlist::createItem(const FileHandle &file, QListViewItem *after,
			       bool emitChanged)
695
{
696
    CollectionItemType *item = CollectionListType::instance()->lookup(file.absFilePath());
697 698

    if(!item) {
699
	item = new CollectionItemType(file);
700
	setupItem(item);
701 702

	// If a valid tag was not created, destroy the CollectionListItem.
703

704 705
	if(!item->isValid()) {
	    kdError(65432) << "Playlist::createItem() -- A valid tag was not created for \""
706
			   << file.absFilePath() << "\"" << endl;
707 708 709 710 711
	    delete item;
	    return 0;
	}
    }

712
    if(item && !m_members.insert(file.absFilePath()) || m_allowDuplicates) {
713

714
	ItemType *i = after ? new ItemType(item, this, after) : new ItemType(item, this);
715 716
	setupItem(i);

717 718
        if(!m_randomList.isEmpty() && !m_visibleChanged)
            m_randomList.append(i);
719

720
	if(emitChanged)
721
	    dataChanged();
722 723 724 725

	return i;
    }
    else
726
	return 0;
727 728
}

729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745
template <class ItemType, class SiblingType>
ItemType *Playlist::createItem(SiblingType *sibling, ItemType *after)
{
    m_disableColumnWidthUpdates = true;
    
    if(!m_members.insert(sibling->file().absFilePath()) || m_allowDuplicates) {
	after = new ItemType(sibling->collectionItem(), this, after);
	setupItem(after);
	if(!m_randomList.isEmpty() && !m_visibleChanged)
	    m_randomList.append(after);
    }

    m_disableColumnWidthUpdates = false;

    return after;
}

746
template <class CollectionItemType, class ItemType, class SiblingType>
747
void Playlist::createItems(const QValueList<SiblingType *> &siblings, ItemType *after)
748
{
749 750 751
    if(siblings.isEmpty())
	return;

752
    QValueListConstIterator<SiblingType *> it = siblings.begin();
753 754
    for(; it != siblings.end(); ++it)
	after = createItem(*it, after);
755

756
    dataChanged();
757
    slotWeightDirty();
758 759
}

760
#endif