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-rw-r--r--juk/playlistitem.cpp464
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diff --git a/juk/playlistitem.cpp b/juk/playlistitem.cpp
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+/***************************************************************************
+ begin : Sun Feb 17 2002
+ copyright : (C) 2002 - 2004 by Scott Wheeler
+ email : wheeler@kde.org
+***************************************************************************/
+
+/***************************************************************************
+ * *
+ * 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. *
+ * *
+ ***************************************************************************/
+
+#include <config.h>
+
+#include <kdebug.h>
+#include <kaction.h>
+#include <kiconloader.h>
+
+#include "playlistitem.h"
+#include "collectionlist.h"
+#include "musicbrainzquery.h"
+#include "tag.h"
+#include "actioncollection.h"
+#include "ktrm.h"
+#include "coverinfo.h"
+#include "tagtransactionmanager.h"
+
+PlaylistItemList PlaylistItem::m_playingItems; // static
+
+static void startMusicBrainzQuery(const FileHandle &file)
+{
+#if HAVE_MUSICBRAINZ
+ // This deletes itself when finished.
+ new MusicBrainzLookup(file);
+#else
+ Q_UNUSED(file)
+#endif
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlaylistItem public methods
+////////////////////////////////////////////////////////////////////////////////
+
+PlaylistItem::~PlaylistItem()
+{
+ // Although this isn't the most efficient way to accomplish the task of
+ // stopping playback when deleting the item being played, it has the
+ // stark advantage of working reliably. I'll tell anyone who tries to
+ // optimize this, the timing issues can be *hard*. -- mpyne
+
+ m_collectionItem->removeChildItem(this);
+
+ if(m_playingItems.find(this) != m_playingItems.end()) {
+ m_playingItems.remove(this);
+ if(m_playingItems.isEmpty())
+ playlist()->setPlaying(0);
+ }
+
+ if(m_watched)
+ Pointer::clear(this);
+}
+
+void PlaylistItem::setFile(const FileHandle &file)
+{
+ m_collectionItem->updateCollectionDict(d->fileHandle.absFilePath(), file.absFilePath());
+ d->fileHandle = file;
+ refresh();
+}
+
+void PlaylistItem::setFile(const QString &file)
+{
+ QString oldPath = d->fileHandle.absFilePath();
+ d->fileHandle.setFile(file);
+ m_collectionItem->updateCollectionDict(oldPath, d->fileHandle.absFilePath());
+ refresh();
+}
+
+FileHandle PlaylistItem::file() const
+{
+ return d->fileHandle;
+}
+
+const QPixmap *PlaylistItem::pixmap(int column) const
+{
+ static QPixmap image(SmallIcon("image"));
+ static QPixmap playing(UserIcon("playing"));
+
+ int offset = playlist()->columnOffset();
+
+ if((column - offset) == CoverColumn && d->fileHandle.coverInfo()->hasCover())
+ return &image;
+
+ if(column == playlist()->leftColumn() &&
+ m_playingItems.contains(const_cast<PlaylistItem *>(this)))
+ return &playing;
+
+ return KListViewItem::pixmap(column);
+}
+
+QString PlaylistItem::text(int column) const
+{
+ if(!d->fileHandle.tag())
+ return QString::null;
+
+ int offset = playlist()->columnOffset();
+
+ switch(column - offset) {
+ case TrackColumn:
+ return d->fileHandle.tag()->title();
+ case ArtistColumn:
+ return d->fileHandle.tag()->artist();
+ case AlbumColumn:
+ return d->fileHandle.tag()->album();
+ case CoverColumn:
+ return QString::null;
+ case TrackNumberColumn:
+ return d->fileHandle.tag()->track() > 0
+ ? QString::number(d->fileHandle.tag()->track())
+ : QString::null;
+ case GenreColumn:
+ return d->fileHandle.tag()->genre();
+ case YearColumn:
+ return d->fileHandle.tag()->year() > 0
+ ? QString::number(d->fileHandle.tag()->year())
+ : QString::null;
+ case LengthColumn:
+ return d->fileHandle.tag()->lengthString();
+ case BitrateColumn:
+ return QString::number(d->fileHandle.tag()->bitrate());
+ case CommentColumn:
+ return d->fileHandle.tag()->comment();
+ case FileNameColumn:
+ return d->fileHandle.fileInfo().fileName();
+ case FullPathColumn:
+ return d->fileHandle.fileInfo().absFilePath();
+ default:
+ return KListViewItem::text(column);
+ }
+}
+
+void PlaylistItem::setText(int column, const QString &text)
+{
+ int offset = playlist()->columnOffset();
+ if(column - offset >= 0 && column + offset <= lastColumn()) {
+ KListViewItem::setText(column, QString::null);
+ return;
+ }
+
+ KListViewItem::setText(column, text);
+ playlist()->slotWeightDirty(column);
+}
+
+void PlaylistItem::setPlaying(bool playing, bool master)
+{
+ m_playingItems.remove(this);
+
+ if(playing) {
+ if(master)
+ m_playingItems.prepend(this);
+ else
+ m_playingItems.append(this);
+ }
+ else {
+
+ // This is a tricky little recursion, but it
+ // in fact does clear the list.
+
+ if(!m_playingItems.isEmpty())
+ m_playingItems.front()->setPlaying(false);
+ }
+
+ listView()->triggerUpdate();
+}
+
+void PlaylistItem::setSelected(bool selected)
+{
+ playlist()->markItemSelected(this, selected);
+ KListViewItem::setSelected(selected);
+}
+
+void PlaylistItem::guessTagInfo(TagGuesser::Type type)
+{
+ switch(type) {
+ case TagGuesser::FileName:
+ {
+ TagGuesser guesser(d->fileHandle.absFilePath());
+ Tag *tag = TagTransactionManager::duplicateTag(d->fileHandle.tag());
+
+ if(!guesser.title().isNull())
+ tag->setTitle(guesser.title());
+ if(!guesser.artist().isNull())
+ tag->setArtist(guesser.artist());
+ if(!guesser.album().isNull())
+ tag->setAlbum(guesser.album());
+ if(!guesser.track().isNull())
+ tag->setTrack(guesser.track().toInt());
+ if(!guesser.comment().isNull())
+ tag->setComment(guesser.comment());
+
+ TagTransactionManager::instance()->changeTagOnItem(this, tag);
+ break;
+ }
+ case TagGuesser::MusicBrainz:
+ startMusicBrainzQuery(d->fileHandle);
+ break;
+ }
+}
+
+Playlist *PlaylistItem::playlist() const
+{
+ return static_cast<Playlist *>(listView());
+}
+
+QValueVector<int> PlaylistItem::cachedWidths() const
+{
+ return d->cachedWidths;
+}
+
+void PlaylistItem::refresh()
+{
+ m_collectionItem->refresh();
+}
+
+void PlaylistItem::refreshFromDisk()
+{
+ d->fileHandle.refresh();
+ refresh();
+}
+
+void PlaylistItem::clear()
+{
+ playlist()->clearItem(this);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlaylistItem protected methods
+////////////////////////////////////////////////////////////////////////////////
+
+PlaylistItem::PlaylistItem(CollectionListItem *item, Playlist *parent) :
+ KListViewItem(parent),
+ d(0),
+ m_watched(0)
+{
+ setup(item);
+}
+
+PlaylistItem::PlaylistItem(CollectionListItem *item, Playlist *parent, QListViewItem *after) :
+ KListViewItem(parent, after),
+ d(0),
+ m_watched(0)
+{
+ setup(item);
+}
+
+
+// This constructor should only be used by the CollectionList subclass.
+
+PlaylistItem::PlaylistItem(CollectionList *parent) :
+ KListViewItem(parent),
+ m_watched(0)
+{
+ d = new Data;
+ m_collectionItem = static_cast<CollectionListItem *>(this);
+ setDragEnabled(true);
+}
+
+void PlaylistItem::paintCell(QPainter *p, const QColorGroup &cg, int column, int width, int align)
+{
+ if(!m_playingItems.contains(this))
+ return KListViewItem::paintCell(p, cg, column, width, align);
+
+ QColorGroup colorGroup = cg;
+
+ QColor base = colorGroup.base();
+ QColor selection = colorGroup.highlight();
+
+ int r = (base.red() + selection.red()) / 2;
+ int b = (base.blue() + selection.blue()) / 2;
+ int g = (base.green() + selection.green()) / 2;
+
+ QColor c(r, g, b);
+
+ colorGroup.setColor(QColorGroup::Base, c);
+ QListViewItem::paintCell(p, colorGroup, column, width, align);
+}
+
+int PlaylistItem::compare(QListViewItem *item, int column, bool ascending) const
+{
+ // reimplemented from QListViewItem
+
+ int offset = playlist()->columnOffset();
+
+ if(!item)
+ return 0;
+
+ PlaylistItem *playlistItem = static_cast<PlaylistItem *>(item);
+
+ // The following statments first check to see if you can sort based on the
+ // specified column. If the values for the two PlaylistItems are the same
+ // in that column it then trys to sort based on columns 1, 2, 3 and 0,
+ // (artist, album, track number, track name) in that order.
+
+ int c = compare(this, playlistItem, column, ascending);
+
+ if(c != 0)
+ return c;
+ else {
+ // Loop through the columns doing comparisons until something is differnt.
+ // If all else is the same, compare the track name.
+
+ int last = playlist()->isColumnVisible(AlbumColumn + offset) ? TrackNumberColumn : ArtistColumn;
+
+ for(int i = ArtistColumn; i <= last; i++) {
+ if(playlist()->isColumnVisible(i + offset)) {
+ c = compare(this, playlistItem, i, ascending);
+ if(c != 0)
+ return c;
+ }
+ }
+ return compare(this, playlistItem, TrackColumn + offset, ascending);
+ }
+}
+
+int PlaylistItem::compare(const PlaylistItem *firstItem, const PlaylistItem *secondItem, int column, bool) const
+{
+ int offset = playlist()->columnOffset();
+
+ if(column < 0 || column > lastColumn() + offset)
+ return 0;
+
+ if(column < offset) {
+ QString first = firstItem->text(column).lower();
+ QString second = secondItem->text(column).lower();
+ return first.localeAwareCompare(second);
+ }
+
+ switch(column - offset) {
+ case TrackNumberColumn:
+ if(firstItem->d->fileHandle.tag()->track() > secondItem->d->fileHandle.tag()->track())
+ return 1;
+ else if(firstItem->d->fileHandle.tag()->track() < secondItem->d->fileHandle.tag()->track())
+ return -1;
+ else
+ return 0;
+ break;
+ case LengthColumn:
+ if(firstItem->d->fileHandle.tag()->seconds() > secondItem->d->fileHandle.tag()->seconds())
+ return 1;
+ else if(firstItem->d->fileHandle.tag()->seconds() < secondItem->d->fileHandle.tag()->seconds())
+ return -1;
+ else
+ return 0;
+ break;
+ case BitrateColumn:
+ if(firstItem->d->fileHandle.tag()->bitrate() > secondItem->d->fileHandle.tag()->bitrate())
+ return 1;
+ else if(firstItem->d->fileHandle.tag()->bitrate() < secondItem->d->fileHandle.tag()->bitrate())
+ return -1;
+ else
+ return 0;
+ break;
+ case CoverColumn:
+ if(firstItem->d->fileHandle.coverInfo()->hasCover() == secondItem->d->fileHandle.coverInfo()->hasCover())
+ return 0;
+ else if (firstItem->d->fileHandle.coverInfo()->hasCover())
+ return -1;
+ else
+ return 1;
+ break;
+ default:
+ return strcoll(firstItem->d->local8Bit[column - offset],
+ secondItem->d->local8Bit[column - offset]);
+ }
+}
+
+bool PlaylistItem::isValid() const
+{
+ return bool(d->fileHandle.tag());
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlaylistItem private methods
+////////////////////////////////////////////////////////////////////////////////
+
+void PlaylistItem::setup(CollectionListItem *item)
+{
+ m_collectionItem = item;
+
+ d = item->d;
+ item->addChildItem(this);
+ setDragEnabled(true);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PlaylistItem::Pointer implementation
+////////////////////////////////////////////////////////////////////////////////
+
+QMap<PlaylistItem *, QValueList<PlaylistItem::Pointer *> > PlaylistItem::Pointer::m_map; // static
+
+PlaylistItem::Pointer::Pointer(PlaylistItem *item) :
+ m_item(item)
+{
+ if(!m_item)
+ return;
+
+ m_item->m_watched = true;
+ m_map[m_item].append(this);
+}
+
+PlaylistItem::Pointer::Pointer(const Pointer &p) :
+ m_item(p.m_item)
+{
+ m_map[m_item].append(this);
+}
+
+PlaylistItem::Pointer::~Pointer()
+{
+ if(!m_item)
+ return;
+
+ m_map[m_item].remove(this);
+ if(m_map[m_item].isEmpty()) {
+ m_map.remove(m_item);
+ m_item->m_watched = false;
+ }
+}
+
+PlaylistItem::Pointer &PlaylistItem::Pointer::operator=(PlaylistItem *item)
+{
+ if(item == m_item)
+ return *this;
+
+ if(m_item) {
+ m_map[m_item].remove(this);
+ if(m_map[m_item].isEmpty()) {
+ m_map.remove(m_item);
+ m_item->m_watched = false;
+ }
+ }
+
+ if(item) {
+ m_map[item].append(this);
+ item->m_watched = true;
+ }
+
+ m_item = item;
+
+ return *this;
+}
+
+void PlaylistItem::Pointer::clear(PlaylistItem *item) // static
+{
+ if(!item)
+ return;
+
+ QValueList<Pointer *> l = m_map[item];
+ for(QValueList<Pointer *>::Iterator it = l.begin(); it != l.end(); ++it)
+ (*it)->m_item = 0;
+ m_map.remove(item);
+ item->m_watched = false;
+}
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