/*
 * 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.measure;

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.measure.UndoableAddMeasure;
import org.herac.tuxguitar.song.models.TGMeasure;

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

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

  protected int execute(TypedEvent e) {
    Caret caret = getEditor().getTablature().getCaret();
    // si es el ultimo compas, agrego uno nuevo
    if (getSongManager().getTrackManager().isLastMeasure(caret.getMeasure())) {
      int number = (getSongManager().getSong().countMeasureHeaders() + 1);

      // comienza el undoable
      UndoableAddMeasure undoable = UndoableAddMeasure.startUndo(number);

      this.getSongManager().addNewMeasure(number);
      this.fireUpdate(number);
      this.moveToNext();

      // termia el undoable
      this.addUndoableEdit(undoable.endUndo());
    } else {
      this.moveToNext();
    }

    return 0;
  }

  private void moveToNext() {
    if (TuxGuitar.instance().getPlayer().isRunning()) {
      TuxGuitar.instance().getTransport().gotoNext();
    } else {
      Caret caret = getEditor().getTablature().getCaret();
      TGTrackImpl track = caret.getTrack();
      TGMeasure measure = getSongManager().getTrackManager().getNextMeasure(
          caret.getMeasure());
      if (track != null && measure != null) {
        caret.update(track.getNumber(), measure.getStart(), caret
            .getSelectedString().getNumber());
      }
    }
  }
}