Package jmt.gui.jmodel.mainGui

Source Code of jmt.gui.jmodel.mainGui.ComponentBar

/**   
  * Copyright (C) 2007, Laboratorio di Valutazione delle Prestazioni - Politecnico di Milano

  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.

  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.

  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */

package jmt.gui.jmodel.mainGui;

import java.lang.reflect.Field;

import jmt.framework.gui.components.JMTToolBar;
import jmt.gui.common.resources.JMTImageLoader;
import jmt.gui.jmodel.controller.Mediator;
import jmt.gui.jmodel.controller.actions.SetInsertState;

/**
* <p>Title: Component Toolbar</p>
* <p>Description: A toolbar used to insert new stations in the graph, or to go
* into "select mode" or "link mode". This class uses reflection on
* <code>JMODELConstants</code>, in such way a future placement of new station
* types will be easy.</p>
*
* @author Bertoli Marco
*         Date: 4-giu-2005
*         Time: 14.13.55
*
* Modified by Giuseppe De Cicco & Fabio Granara
*/
public class ComponentBar extends JMTToolBar {
  /**
   *
   */
  private static final long serialVersionUID = 1L;

  public ComponentBar(Mediator m) {
    super(JMTImageLoader.getImageLoader());
    // Adds Select button
    addGenericButton(m.getSetSelect());
    addSeparator();
    // Adds insert mode buttons.
    String[] stations = getStationList();
    for (String station : stations) {
      addGenericButton(new SetInsertState(m, station));
    }
    addSeparator();
    // Adds link button
    addGenericButton(m.getSetConnect());
    // Blocking region button
    addGenericButton(m.getAddBlockingRegion());

    addSeparator();
    // Rotate button
    addGenericButton(m.getRotate());
    // Set right button
    addGenericButton(m.getSetRight());

    // Disables all components button
    enableButtons(false);
   
  }
 
  /**
   * Finds all possible station types using reflection on <code>JMODELConstants</code>
   * In such way a future placement of new station types will be easy.
   * @return All station types element found
   */
  private String[] getStationList() {
    String path = "jmt.gui.jmodel.JGraphMod.";
    Field[] fields = jmt.gui.jmodel.JMODELConstants.class.getFields();
    String[] stationNames = new String[fields.length];
    int index = 0;
    try {
      for (Field field : fields) {
        if (field.getName().startsWith("STATION_TYPE_")) {
          // Checks for existance of graphic component
          String name = ((String) field.get(null)).replaceAll(" ", "") + "Cell";
          try {
            boolean enabled = Class.forName(path + name).getDeclaredField("canBePlaced").getBoolean(null);
            if (enabled) {
              stationNames[index++] = name;
            }
          } catch (ClassNotFoundException e) {
            // Never Thrown
            e.printStackTrace();
          } catch (NoSuchFieldException ex) {
            // Never Thrown
            ex.printStackTrace();
          }
        }
      }
    } catch (IllegalAccessException ex) {
      System.out.println("A security manager has blocked reflection");
      ex.printStackTrace();
    }
    // Build *Cell array to be given as output
    String[] tmp = new String[index];
    for (int i = 0; i < index; i++) {
      tmp[i] = stationNames[i];
    }
    return tmp;
  }
}
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