algae.java

ALGAE是一个快速创建算法演示的框架。目前支持的算法实现语言包括java和c

package edu.odu.cs.zeil.AlgAE.Server;

import edu.odu.cs.zeil.AlgAE.Termination;
import edu.odu.cs.zeil.AlgAE.Server.MenuFunction;
import edu.odu.cs.zeil.AlgAE.Server.Server;
import edu.odu.cs.zeil.AlgAE.Server.ServerThread;

import java.io.InputStream;
import java.io.PrintStream;


/**
 *  AlgAE basic animation controls
 *
 *  These controls are all implemented as static functions (at some cost
 *  in implementation complexity) so that they can be called from within
 *  animated code without the need to explicitly pass AlgAE.Server objects to
 *  every function in the animated code.
 *
 *  @author Steven J Zeil
 **/
public class algae
{



  
  
  
  /**
   *  Declare a menu item to appear in the client's Algorithm menu
   *  and a corresponding function to be executed here on the server
   *  in response to a selection of that item.
   *
   * @param menuItemTitle The string to appear in the client's menu
   * @param theOperation  code to invoke when the menu item is selected
   **/
  static public void menuItem (String menuItemTitle,
			       MenuFunction theOperation)
  {
    server().menuItem (menuItemTitle, theOperation);
  }

  /**
   *  Signal that a frame should be drawn, and the algorithm paused
   *  until the client gives a "continue" signal.
   *
   *  @param frameidentifier  Unique string identifying this code location.
   *  @param message          String to display in client's status line
   **/
  public static void FRAME (String frameIdentifier, String message)
  {
    server().FRAME(frameIdentifier, message);
  }
  


  /**
   *  Signal that a frame should be drawn, and the algorithm paused
   *  until the client gives a "continue" signal.
   *
   *  @param message          String to display in client's status line.
   *                          Also used as the frame identifier.
   **/
  public static void FRAME (String message)
  {
    server().FRAME(message, message);
  }
  

  /**
   *  Pop up a dialog box requesting some input from the person operating
   *  the client.
   *
   * @param prompt    String to display in the dialog box
   * @return          the user's response.
   **/
  static public String promptForInput (String prompt)
  {
   return server().promptForInput (prompt);
  }
    

  /**
   *  Restore any highlighted nodes and edges to their "normal" colors.
   *
   **/
  static public void unHighlightAll()
  {
   server().unHighlightAll();
  }

  /**
   *  Pop up a dialog box presenting some message to the person operating
   *  the client.
   *
   * @param prompt    String to display in the dialog box
   **/
  public void message (String msg)
  {
    server().message (msg);
  }
  


  /**
   *  Replacement for System.in - reads information from the Client's
   *  std I/O window.
   **/
  static public InputStream in()
  {
    return server().in;
  }
  


  /**
   *  Replacement for System.out - sends information to the Client's
   *  std I/O window.
   **/
  static public PrintStream out()
  {
    return server().out;
  }
  
  

  /**
   *  Shutdown and Exit.
   **/
  public static void exit (int statusCode)
  {
    ServerThread st = (ServerThread)Thread.currentThread();
    st.getApplication().exit(statusCode);
  }
  
  private static Server server()
  {
    ServerThread st = (ServerThread)Thread.currentThread();
    return st.getServer();
  }
  
}