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Change: Don't restart playback when toggling playlist shuffle.

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Instead update the selected playlist entry for the current song.
This commit is contained in:
Peter Nelson 2023-11-27 12:52:31 +00:00 committed by Peter Nelson
parent 6c91c4b99d
commit ab1a4c6c80
1 changed files with 22 additions and 6 deletions
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28
src/music_gui.cpp
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@ -87,6 +87,7 @@ struct MusicSystem {
void PlaylistClear();
private:
void SetPositionBySetIndex(uint set_index);
void ChangePlaylistPosition(int ofs);
int playlist_position;
@ -184,30 +185,45 @@ void MusicSystem::ChangeMusicSet(const std::string &set_name)
InvalidateWindowData(WC_MUSIC_WINDOW, 0, 1, true);
}
/** Enable shuffle mode and restart playback */
/**
* Set playlist position by set index.
* @param set_index Set index to select.
*/
void MusicSystem::SetPositionBySetIndex(uint set_index)
{
auto it = std::find_if(std::begin(this->active_playlist), std::end(this->active_playlist), [&set_index](const PlaylistEntry &ple) { return ple.set_index == set_index; });
if (it != std::end(this->active_playlist)) this->playlist_position = std::distance(std::begin(this->active_playlist), it);
}
/**
* Enable shuffle mode.
*/
void MusicSystem::Shuffle()
{
_settings_client.music.shuffle = true;
uint set_index = this->active_playlist[this->playlist_position].set_index;
this->active_playlist = this->displayed_playlist;
for (size_t i = 0; i < this->active_playlist.size(); i++) {
size_t shuffle_index = InteractiveRandom() % (this->active_playlist.size() - i);
std::swap(this->active_playlist[i], this->active_playlist[i + shuffle_index]);
}
if (_settings_client.music.playing) this->Play();
this->SetPositionBySetIndex(set_index);
InvalidateWindowData(WC_MUSIC_TRACK_SELECTION, 0);
InvalidateWindowData(WC_MUSIC_WINDOW, 0);
}
/** Disable shuffle and restart playback */
/**
* Disable shuffle mode.
*/
void MusicSystem::Unshuffle()
{
_settings_client.music.shuffle = false;
this->active_playlist = this->displayed_playlist;
if (_settings_client.music.playing) this->Play();
uint set_index = this->active_playlist[this->playlist_position].set_index;
this->active_playlist = this->displayed_playlist;
this->SetPositionBySetIndex(set_index);
InvalidateWindowData(WC_MUSIC_TRACK_SELECTION, 0);
InvalidateWindowData(WC_MUSIC_WINDOW, 0);