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tdemultimedia/juk/playlistitem.cpp

465 lines
12 KiB

/***************************************************************************
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 TQString &file)
{
TQString oldPath = d->fileHandle.absFilePath();
d->fileHandle.setFile(file);
m_collectionItem->updateCollectionDict(oldPath, d->fileHandle.absFilePath());
refresh();
}
FileHandle PlaylistItem::file() const
{
return d->fileHandle;
}
const TQPixmap *PlaylistItem::pixmap(int column) const
{
static TQPixmap image(SmallIcon("image"));
static TQPixmap 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);
}
TQString PlaylistItem::text(int column) const
{
if(!d->fileHandle.tag())
return TQString();
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 TQString();
case TrackNumberColumn:
return d->fileHandle.tag()->track() > 0
? TQString::number(d->fileHandle.tag()->track())
: TQString();
case GenreColumn:
return d->fileHandle.tag()->genre();
case YearColumn:
return d->fileHandle.tag()->year() > 0
? TQString::number(d->fileHandle.tag()->year())
: TQString();
case LengthColumn:
return d->fileHandle.tag()->lengthString();
case BitrateColumn:
return TQString::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 TQString &text)
{
int offset = playlist()->columnOffset();
if(column - offset >= 0 && column + offset <= lastColumn()) {
KListViewItem::setText(column, TQString());
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());
}
TQValueVector<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, TQListViewItem *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(TQPainter *p, const TQColorGroup &cg, int column, int width, int align)
{
if(!m_playingItems.contains(this))
return KListViewItem::paintCell(p, cg, column, width, align);
TQColorGroup tqcolorGroup = cg;
TQColor base = tqcolorGroup.base();
TQColor selection = tqcolorGroup.highlight();
int r = (base.red() + selection.red()) / 2;
int b = (base.blue() + selection.blue()) / 2;
int g = (base.green() + selection.green()) / 2;
TQColor c(r, g, b);
tqcolorGroup.setColor(TQColorGroup::Base, c);
TQListViewItem::paintCell(p, tqcolorGroup, column, width, align);
}
int PlaylistItem::compare(TQListViewItem *item, int column, bool ascending) const
{
// reimplemented from TQListViewItem
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) {
TQString first = firstItem->text(column).lower();
TQString 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
////////////////////////////////////////////////////////////////////////////////
TQMap<PlaylistItem *, TQValueList<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;
TQValueList<Pointer *> l = m_map[item];
for(TQValueList<Pointer *>::Iterator it = l.begin(); it != l.end(); ++it)
(*it)->m_item = 0;
m_map.remove(item);
item->m_watched = false;
}