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package tim.prune.cmd;
import tim.prune.DataSubscriber;
import tim.prune.data.Photo;
import tim.prune.data.TrackInfo;
/**
* Command class to remove (not delete) a single photo
*/
public class RemovePhotoCmd extends Command
{
private final int _photoIndex;
public RemovePhotoCmd(int inPhotoIndex) {
this(null, inPhotoIndex);
}
protected RemovePhotoCmd(Command inParent, int inPhotoIndex)
{
super(inParent);
_photoIndex = inPhotoIndex;
}
@Override
public int getUpdateFlags() {
return DataSubscriber.MEDIA_MODIFIED;
}
@Override
protected boolean executeCommand(TrackInfo inInfo)
{
try {
inInfo.getPhotoList().delete(_photoIndex);
return true;
}
catch (IndexOutOfBoundsException obe) {
return false;
}
}
@Override
protected Command makeInverse(TrackInfo inInfo)
{
Photo photo = inInfo.getPhotoList().get(_photoIndex);
return new InsertPhotoCmd(this, photo, _photoIndex);
}
}
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