messages.h

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

#ifndef MESSAGES_H
#define MESSAGES_H

#include <algae/config.h>
#include <string>
#include <iostream>

#include <algae/algae.h>

//
// Messages provides the interface for messages sent
// from the server (algorithm) between the AlgAE client
// (the graphic display).
// 
class Messages 
{
private:
  Messages(): in(CIN), out(COUT) {}
  Messages (const Messages& ): in(CIN), out(COUT) {}
  void operator= (const Messages&) {}

public:
  Messages (std::istream& inputs, std::ostream& outputs);

  // Inputs from the client
  //   [These may block until the client actually sends a signal. They may
  //    also terminate the program if the client shuts down unexpectedly.]
  bool canContinue();
  bool clientIsPausing() const;
  std::string getMenuSelection();
  std::string promptForInput (const std::string& prompt);
  std::string stdInput();
  

  // Outputs to the client
  void beginEdgeList();
  void endEdgeList();

  void beginComponentList();
  void endComponentList();

  void touch (int sourceID, int destID,
	      AlgAE::Directions dir, AlgAE::Color color,
	      const std::string& edgeLabel);

  void node (int objectID, AlgAE::Color color,
	     const std::string& label, bool vertical);
  void node (int objectID, const std::string& label);

  void hide (int objectID);
  
  void beginAlgorithm();
  void endAlgorithm();

  void beginFrame();
  void endFrame(const std::string& frameIdentifier);

  void menuItem (const std::string& itemName);

  void status (const std::string& statusMsg);
  void algorithmName (const std::string& algName, const std::string& aboutString);
  void quit();

  void message (const std::string& msg);
  void stdOutput (const std::string& msg);

private:
  std::istream& in;
  std::ostream& out;

  bool touchingEdges;
  bool continuingPermitted;
  bool pausing;
  
  bool getLine(std::string& line);
  std::string encode (const std::string&);
  std::string decode (const std::string&);
  
};


#endif