void setTrackEffect(int trackIndex, int effectIndex, QDomElement effect);
const EffectsList getTrackEffects(int ix);
QDomElement getTrackEffect(int trackIndex, int effectIndex) const;
+ /** @brief Check if a track already contains a specific effect. */
+ int hasTrackEffect(int trackIndex, const QString &tag, const QString &id) const;
/** @brief Get a list of folder id's that were opened on last save. */
QStringList getExpandedFolders();
/** @brief Read the display ratio from an xml project file. */