RemoveTrackAction.java

/*
 * Created on 17-dic-2005
 * 
 * TODO To change the template for this generated file go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
package org.herac.tuxguitar.gui.actions.track;

import org.eclipse.swt.events.TypedEvent;
import org.herac.tuxguitar.gui.TuxGuitar;
import org.herac.tuxguitar.gui.actions.Action;
import org.herac.tuxguitar.gui.editors.tab.Caret;
import org.herac.tuxguitar.gui.editors.tab.TGTrackImpl;
import org.herac.tuxguitar.gui.undo.undoables.track.UndoableRemoveTrack;

/**
 * @author julian
 * 
 *         TODO To change the template for this generated type comment go to
 *         Window - Preferences - Java - Code Style - Code Templates
 */
public class RemoveTrackAction extends Action {
  public static final String NAME = "action.track.remove";

  public RemoveTrackAction() {
    super(NAME, AUTO_LOCK | AUTO_UNLOCK | AUTO_UPDATE | DISABLE_ON_PLAYING
        | KEY_BINDING_AVAILABLE);
  }

  protected int execute(TypedEvent e) {
    Caret caret = getEditor().getTablature().getCaret();

    if (getSongManager().getSong().countTracks() <= 1) {
      // TuxGuitar.instance().getAction(NewFileAction.NAME).process(e);
      TuxGuitar.instance().newSong();
      return 0;
    }
    // comienza el undoable
    UndoableRemoveTrack undoable = UndoableRemoveTrack.startUndo();
    TuxGuitar.instance().getFileHistory().setUnsavedFile();

    TGTrackImpl track = caret.getTrack();
    TGTrackImpl nextCaretTrack = (TGTrackImpl) getSongManager().getTrack(
        track.getNumber() + 1);
    if (nextCaretTrack == null) {
      nextCaretTrack = (TGTrackImpl) getSongManager().getTrack(
          track.getNumber() - 1);
    }
    getSongManager().removeTrack(track);
    updateTablature();

    // move the caret to the next or previous track
    if (nextCaretTrack != null) {
      caret.update(nextCaretTrack.getNumber(), getSongManager()
          .getTrackManager().getMeasureAt(nextCaretTrack,
              caret.getMeasure().getStart()).getStart(), 1);
    }
    TuxGuitar.instance().getMixer().update();

    // termia el undoable
    addUndoableEdit(undoable.endUndo());

    return 0;
  }
}