@Override
public void execute() throws PropertyAlreadySetException {
ScoreDocument doc = this.doc;
Score score = this.score;
if (doc == null || score == null) {
doc = App.getInstance().getScoreDocument(); // TODO: null
score = doc.getScore(0);
}
PlaybackTool tool = new PlaybackTool(doc, score);
doc.setSelectedTool(tool);
}
public void actionPerformed(ActionEvent arg0) {
LanguageChangeCommand cmd = new LanguageChangeCommand(langID);
ScoreDocument doc = App.getInstance().getScoreDocument();
doc.getCommandPerformer().execute(cmd);
}