89 lines
1.3 KiB
C++
89 lines
1.3 KiB
C++
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/*
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* Copyright 2013 (c) Anna Schumaker.
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*/
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#include <playlist.h>
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#include <stdlib.h>
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Playlist :: Playlist()
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: flags(0), cur(-1)
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{
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}
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Playlist :: Playlist(playlist_flags f)
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: flags(f), cur(-1)
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{
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}
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Playlist :: ~Playlist()
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{
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}
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void Playlist :: write(File &f)
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{
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f << flags << " " << tracks.size();
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for (unsigned int i = 0; i < tracks.size(); i++)
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f << " " << tracks[i];
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}
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void Playlist :: read(File &f)
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{
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unsigned int n;
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f >> flags >> n;
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tracks.resize(n);
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for (unsigned int i = 0; i < n; i++)
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f >> tracks[i];
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}
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void Playlist :: set_flag(playlist_flags f)
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{
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flags |= f;
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}
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void Playlist :: unset_flag(playlist_flags f)
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{
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flags &= ~f;
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}
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const unsigned int Playlist :: get_flags()
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{
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return flags;
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}
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unsigned int Playlist :: add(unsigned int track_id)
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{
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tracks.push_back(track_id);
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return tracks.size() - 1;
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}
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void Playlist :: del(unsigned int plist_id)
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{
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tracks.erase(tracks.begin() + plist_id);
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}
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unsigned int Playlist :: size()
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{
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return tracks.size();
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}
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unsigned int Playlist :: next()
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{
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unsigned int res;
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if (tracks.size() == 1)
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cur = 0;
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else if (flags & PL_RANDOM)
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cur += rand() % (tracks.size() / 2) + 1;
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else
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cur++;
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if (cur >= tracks.size())
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cur -= tracks.size();
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res = tracks[cur];
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if (!(flags & PL_LOCKED)) {
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tracks.erase(tracks.begin() + cur);
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cur--;
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}
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return res;
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}
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