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Merge small icecast genres into "other".

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This commit is contained in:
John Maguire 2010-11-22 21:14:06 +00:00
parent b6d424bc04
commit 0d96793e59
1 changed files with 32 additions and 2 deletions
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34
src/radio/icecastservice.cpp
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@ -74,11 +74,18 @@ struct GenreSorter {
template <typename T>
struct StationSorter {
bool operator() (T a, T b) const {
bool operator() (const T& a, const T& b) const {
return a.name.compare(b.name, Qt::CaseInsensitive) < 0;
}
};
template <typename T>
struct StationSorter<T*> {
bool operator() (const T* a, const T* b) const {
return a->name.compare(b->name, Qt::CaseInsensitive) < 0;
}
};
template <typename T>
struct StationEquality {
bool operator() (T a, T b) const {
@ -132,9 +139,32 @@ void IcecastService::ParseDirectoryFinished() {
}
}
// Sort genres by station count.
QSet<QString> genre_set = genres.keys().toSet();
// Merge genres with only 1 or 2 stations into "Other".
foreach (const QString& genre, genre_set) {
if (genres.count(genre) < 3) {
const QList<const Station*>& small_genre = genres.values(genre);
foreach (const Station* s, small_genre) {
genres.insert("other", s);
}
genres.remove(genre);
}
}
// Re-sort "Other" genre.
QList<const Station*> other_genre = genres.values("other");
sort(other_genre.begin(), other_genre.end(), StationSorter<const Station*>());
genres.remove("other");
QListIterator<const Station*> other_genre_it(other_genre);
other_genre_it.toBack();
while (other_genre_it.hasPrevious()) {
const Station* s = other_genre_it.previous();
genres.insert("other", s);
}
// HACK: De-dupe keys.
QList<QString> genre_names = genres.keys().toSet().toList();
// Sort genres by station count.
sort(genre_names.begin(), genre_names.end(), GenreSorter<const Station*>(genres));
foreach (const QString& genre, genre_names) {