Obey the filter when updating songs in the database/library.

src/library.cpp

@@ -80,6 +80,9 @@ void Library::Initialise() {
 
 void Library::SongsDiscovered(const SongList& songs) {
   foreach (const Song& song, songs) {
+    if (!query_options_.Matches(song))
+      continue;
+
     LibraryItem* artist = NULL;
     LibraryItem* album = NULL;
 

src/libraryquery.cpp

@@ -1,4 +1,5 @@
 #include "libraryquery.h"
+#include "song.h"
 
 #include <QtDebug>
 #include <QDateTime>
@@ -54,3 +55,19 @@ QSqlQuery LibraryQuery::Query(QSqlDatabase db) const {
 
   return q;
 }
+
+bool QueryOptions::Matches(const Song& song) const {
+  if (max_age != -1) {
+    const uint cutoff = QDateTime::currentDateTime().toTime_t() - max_age;
+    if (song.ctime() <= cutoff)
+      return false;
+  }
+
+  if (!filter.isNull()) {
+    return song.artist().contains(filter, Qt::CaseInsensitive) ||
+           song.album().contains(filter, Qt::CaseInsensitive) ||
+           song.title().contains(filter, Qt::CaseInsensitive);
+  }
+
+  return true;
+}

src/libraryquery.h

@@ -7,9 +7,13 @@
 #include <QStringList>
 #include <QVariantList>
 
+class Song;
+
 struct QueryOptions {
   QueryOptions() : max_age(-1) {}
 
+  bool Matches(const Song& song) const;
+
   QString filter;
   int max_age;
 };