Salastil/ncmpcpp
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check if song is in playlist in O(nlogn) instead of O(n^2)

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This commit is contained in:
Andrzej Rybczak
2012-09-04 03:12:37 +02:00
parent 8ab8da2a30
commit 60ca9de919
7 changed files with 50 additions and 51 deletions
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25
src/status.cpp
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@@ -234,7 +234,13 @@ void NcmpcppStatusChanged(MPD::Connection *, MPD::StatusChanges changed, void *)
size_t playlist_length = Mpd.GetPlaylistLength();
if (playlist_length < myPlaylist->Items->size())
{
auto it = myPlaylist->Items->begin()+playlist_length;
auto end = myPlaylist->Items->end();
for (; it != end; ++it)
myPlaylist->unregisterHash(it->value().getHash());
myPlaylist->Items->resizeList(playlist_length);
}
auto songs = Mpd.GetPlaylistChanges(Mpd.GetOldPlaylistID());
for (auto s = songs.begin(); s != songs.end(); ++s)
@@ -243,13 +249,16 @@ void NcmpcppStatusChanged(MPD::Connection *, MPD::StatusChanges changed, void *)
if (pos < myPlaylist->Items->size())
{
// if song's already in playlist, replace it with a new one
myPlaylist->Items->at(pos).value() = *s;
MPD::Song &old_s = myPlaylist->Items->at(pos).value();
myPlaylist->unregisterHash(old_s.getHash());
old_s = *s;
}
else
{
// otherwise just add it to playlist
myPlaylist->Items->addItem(*s);
}
myPlaylist->registerHash(s->getHash());
}
if (is_filtered)
@@ -266,21 +275,13 @@ void NcmpcppStatusChanged(MPD::Connection *, MPD::StatusChanges changed, void *)
myPlaylist->Items->reset();
if (isVisible(myBrowser))
{
myBrowser->UpdateItemList();
}
else if (isVisible(mySearcher))
{
if (isVisible(mySearcher))
mySearcher->UpdateFoundList();
}
else if (isVisible(myLibrary))
{
if (isVisible(myLibrary))
UpdateSongList(myLibrary->Songs);
}
else if (isVisible(myPlaylistEditor))
{
if (isVisible(myPlaylistEditor))
UpdateSongList(myPlaylistEditor->Content);
}
}
if (changed.Database)
{