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package tim.prune.undo;
import tim.prune.I18nManager;
import tim.prune.UpdateMessageBroker;
import tim.prune.data.AudioClip;
import tim.prune.data.DataPoint;
import tim.prune.data.TrackInfo;
/**
* Operation to undo a delete of a single audio item, either with or without point
*/
public class UndoDeleteAudio extends UndoDeleteOperation
{
private int _audioIndex = -1;
private AudioClip _audio = null;
private int _pointIndex = -1;
private DataPoint _point = null;
/**
* Constructor
* @param inAudio audio item
* @param inAudioIndex index number of audio within list
* @param inPoint data point
* @param inPointIndex index number of point within track
*/
public UndoDeleteAudio(AudioClip inAudio, int inAudioIndex, DataPoint inPoint, int inPointIndex)
{
_audio = inAudio;
_audioIndex = inAudioIndex;
_point = inPoint;
_pointIndex = inPointIndex;
}
/**
* @return description of operation including filename
*/
public String getDescription() {
return I18nManager.getText("undo.removeaudio") + " " + _audio.getName();
}
/**
* Perform the undo operation on the given Track
* @param inTrackInfo TrackInfo object on which to perform the operation
*/
public void performUndo(TrackInfo inTrackInfo) throws UndoException
{
// restore audio
inTrackInfo.getAudioList().addAudio(_audio, _audioIndex);
// if there's a point to restore, restore it
if (_point != null)
{
if (!inTrackInfo.getTrack().insertPoint(_point, _pointIndex)) {
throw new UndoException(getDescription());
}
// Change the current point/range selection if required
modifySelection(inTrackInfo, _pointIndex, _pointIndex);
}
else
{
// update needed if not already triggered by track update
UpdateMessageBroker.informSubscribers();
}
// Ensure that audio is associated with point and vice versa
_audio.setDataPoint(_point);
if (_point != null) {
_point.setAudio(_audio);
}
}
}
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