upcomingplaylist.cpp 6.78 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
/***************************************************************************
    begin                : Thu Aug 19 2004 
    copyright            : (C) 2002 - 2004 by Michael Pyne
    email                : michael.pyne@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.                                   *
 *                                                                         *
 ***************************************************************************/

16 17 18 19 20 21 22 23 24 25 26 27 28
#include <kdebug.h>
#include <kapplication.h>
#include <kaction.h>

#include "upcomingplaylist.h"
#include "playlistitem.h"
#include "playlistcollection.h"
#include "tracksequencemanager.h"
#include "collectionlist.h"
#include "actioncollection.h"

using namespace ActionCollection;

29
UpcomingPlaylist::UpcomingPlaylist(PlaylistCollection *collection, int defaultSize) :
30
    Playlist(collection, true),
31
    m_active(false),
32 33 34
    m_oldIterator(0),
    m_defaultSize(defaultSize)
{
35
    setName(i18n("Play Queue"));
36 37 38 39 40 41 42 43 44 45 46
    setAllowDuplicates(true);
    setSorting(-1);
}

UpcomingPlaylist::~UpcomingPlaylist()
{
    removeIteratorOverride();
}

void UpcomingPlaylist::initialize()
{
47 48 49 50 51
    if(m_active)
        return;

    m_active = true;

52 53 54 55 56 57 58 59 60 61 62
    m_oldIterator = manager()->takeIterator();
    manager()->installIterator(new UpcomingSequenceIterator(this));

    if(!m_oldIterator->current())
        m_oldIterator->prepareToPlay(CollectionList::instance());
    else
        manager()->iterator()->setCurrent(m_oldIterator->current());
}

void UpcomingPlaylist::appendItems(const PlaylistItemList &itemList)
{
63 64
    initialize();

65 66 67
    if(itemList.isEmpty())
        return;

68 69 70 71 72 73 74 75 76 77 78 79 80
    PlaylistItem *after = static_cast<PlaylistItem *>(lastItem());

    for(PlaylistItemList::ConstIterator it = itemList.begin(); it != itemList.end(); ++it) {
        after = createItem(*it, after);
        m_playlistIndex.insert(after, (*it)->playlist());
    }

    dataChanged();
    slotWeightDirty();
}

void UpcomingPlaylist::playNext()
{
81
    initialize();
82

83
    PlaylistItem *next = TrackSequenceManager::instance()->nextItem();
84

85 86 87 88 89 90 91 92 93 94 95
    if(next) {
        setPlaying(next);
        Playlist *source = m_playlistIndex[next];
        if(source) {
            PlaylistList l;
            l.append(this);
            source->synchronizePlayingItems(l, false);
        }
    }
    else
        removeIteratorOverride();
96 97 98 99 100 101
}

void UpcomingPlaylist::clearItem(PlaylistItem *item, bool emitChanged)
{
    m_playlistIndex.remove(item);
    Playlist::clearItem(item, emitChanged);
102 103
}

104
void UpcomingPlaylist::addFiles(const QStringList &files, PlaylistItem *after)
105
{
106
    CollectionList::instance()->addFiles(files, after);
107

108 109 110 111 112 113 114
    PlaylistItemList l;
    for(QStringList::ConstIterator it = files.begin(); it != files.end(); ++it) {
        FileHandle f(*it);
        PlaylistItem *i = CollectionList::instance()->lookup(f.absFilePath());
        if(i)
            l.append(i);
    }
115

116
    appendItems(l);
117 118
}

119
QMap< PlaylistItem::Pointer, QGuardedPtr<Playlist> > &UpcomingPlaylist::playlistIndex()
120
{
121
    return m_playlistIndex;
122 123
}

124
void UpcomingPlaylist::removeIteratorOverride()
125
{
126 127
    if(!m_active)
        return;
128

129
    m_active = false;
130

131 132
    if(!m_oldIterator || !playingItem())
        return;
133

134 135 136 137 138 139
    m_oldIterator->reset();
    m_oldIterator->setCurrent(playingItem()->collectionItem());
    manager()->installIterator(m_oldIterator);
    manager()->nextItem();
    setPlaying(manager()->nextItem(), true);
    Watched::currentChanged();
140 141
}

142
TrackSequenceManager *UpcomingPlaylist::manager() const
143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
{
    return TrackSequenceManager::instance();
}

UpcomingPlaylist::UpcomingSequenceIterator::UpcomingSequenceIterator(UpcomingPlaylist *playlist) :
    TrackSequenceIterator(), m_playlist(playlist)
{
}

UpcomingPlaylist::UpcomingSequenceIterator::UpcomingSequenceIterator(const UpcomingSequenceIterator &other) :
    TrackSequenceIterator(other), m_playlist(other.m_playlist)
{
}

UpcomingPlaylist::UpcomingSequenceIterator::~UpcomingSequenceIterator()
{
}

void UpcomingPlaylist::UpcomingSequenceIterator::advance()
{
    PlaylistItem *item = m_playlist->firstChild();
164

165
    if(item) {
166
        PlaylistItem *next = static_cast<PlaylistItem *>(item->nextSibling());
167
        m_playlist->clearItem(item);
168
        setCurrent(next);
169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
    }
}

void UpcomingPlaylist::UpcomingSequenceIterator::backup()
{
}

UpcomingPlaylist::UpcomingSequenceIterator *UpcomingPlaylist::UpcomingSequenceIterator::clone() const
{
    return new UpcomingSequenceIterator(*this);
}

void UpcomingPlaylist::UpcomingSequenceIterator::setCurrent(PlaylistItem *currentItem)
{
    if(!currentItem) {
        TrackSequenceIterator::setCurrent(currentItem);
        return;
    }

    // If the upcoming playlist is playing something, clear it out since
    // apparently the user didn't want to hear it.

    PlaylistItem *playingItem = m_playlist->playingItem();
192
    if(playingItem && playingItem->playlist() == m_playlist && currentItem != playingItem)
193 194 195 196 197 198 199
        m_playlist->clearItem(playingItem);

    // If a different playlist owns this item, add it to the upcoming playlist

    Playlist *p = currentItem->playlist();

    if(p != m_playlist) {
200 201 202 203
        PlaylistItem *i = m_playlist->createItem(currentItem, (PlaylistItem *) 0);
        m_playlist->playlistIndex().insert(i, p);
        m_playlist->dataChanged();
        m_playlist->slotWeightDirty();
204 205
    }
    else {
206
        // if(p == m_playlist) {
207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222

        // Bump this item up to the top
        m_playlist->takeItem(currentItem);
        m_playlist->insertItem(currentItem);
    }

    TrackSequenceIterator::setCurrent(m_playlist->firstChild());
}

void UpcomingPlaylist::UpcomingSequenceIterator::reset()
{
    setCurrent(0);
}

void UpcomingPlaylist::UpcomingSequenceIterator::prepareToPlay(Playlist *)
{
223 224
    if(!m_playlist->items().isEmpty())
        setCurrent(m_playlist->firstChild());
225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255
}

QDataStream &operator<<(QDataStream &s, const UpcomingPlaylist &p)
{
    PlaylistItemList l = const_cast<UpcomingPlaylist *>(&p)->items();

    s << Q_INT32(l.count());

    for(PlaylistItemList::ConstIterator it = l.begin(); it != l.end(); ++it)
        s << (*it)->file().absFilePath();

    return s;
}

QDataStream &operator>>(QDataStream &s, UpcomingPlaylist &p)
{
    QString fileName;
    PlaylistItem *newItem = 0;
    Q_INT32 count;

    s >> count;

    for(Q_INT32 i = 0; i < count; ++i) {
        s >> fileName;
        newItem = p.createItem(FileHandle(fileName), newItem, false);
    }

    return s;
}

// vim: set et ts=4 sw=4: