org.opentcs.kernelcontrolcenter.vehicles.AdapterFactoryCellRenderer Maven / Gradle / Ivy

/**
 * Copyright (c) The openTCS Authors.
 *
 * This program is free software and subject to the MIT license. (For details,
 * see the licensing information (LICENSE.txt) you should have received with
 * this copy of the software.)
 */
package org.opentcs.kernelcontrolcenter.vehicles;

import java.awt.Component;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.ListCellRenderer;
import org.opentcs.drivers.vehicle.VehicleCommAdapterDescription;

/**
 * ListCellRenderer for the adapter combo box.
 */
final class AdapterFactoryCellRenderer
    implements
      ListCellRenderer {

  /**
   * A default renderer for creating the label.
   */
  private final DefaultListCellRenderer defaultRenderer = new DefaultListCellRenderer();

  /**
   * Creates a new instance.
   */
  AdapterFactoryCellRenderer() {
  }

  @Override
  public Component getListCellRendererComponent(
      JList list,
      VehicleCommAdapterDescription value,
      int index,
      boolean isSelected,
      boolean cellHasFocus
  ) {
    JLabel label = (JLabel) defaultRenderer.getListCellRendererComponent(
        list,
        value,
        index,
        isSelected,
        cellHasFocus
    );
    if (value != null) {
      label.setText(value.getDescription());
    }
    else {
      label.setText(" ");
    }
    return label;
  }
}