private void substracTrackButtonMouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_substracTrackButtonMouseClicked
        // TODO add your handling code here: Resta una pista del calendario.
        //Habilita o deshabilita el boton substract(<<)si el calendario esta vacio.
        if (substracTrackButton.isEnabled()) {
            changeTracks(calendarjList, calendarTracks, allTracks, calendarTracksListModel, allTracksListModel);
            checkButtonState(calendarTracksListModel, substracTrackButton, addTrackButton);
            
            if (calendarTracksListModel.isEmpty()) {
                limpiarButton.setEnabled(false);
                aplyButton.setEnabled(false);
            }
        }
    }//GEN-LAST:event_substracTrackButtonMouseClicked