/**
 * $OpenXM: OpenXM/src/OpenMath/PolyCalc.java,v 1.8 2000/01/28 06:22:01 tam Exp $
 */

import JP.ac.kobe_u.math.tam.OpenXM.*;
import java.applet.*;
import java.awt.event.*;
import java.awt.*;

class PolyCalc extends Applet implements ActionListener,Runnable{
  private String host = "localhost";
  private int ControlPort = 1200,DataPort = 1300;
  private OpenXM oxm;
  //private Button random1_button,random2_button;
  //private Button mul_button,remainder_button,swap_button,set_button;
  private TextField poly1,poly2;
  private TextArea textarea;
  private Thread thread = null;
  private boolean debug = false;
  //private Text

  PolyCalc(String host,int ControlPort,int DataPort){
    this.host = host;
    this.ControlPort = ControlPort;
    this.DataPort = DataPort;
  }

  public void init(){
    GridBagLayout gridbag = new GridBagLayout();
    GridBagConstraints c = new GridBagConstraints();
    Button button;

    //setFont();
    setLayout(gridbag);

    c.fill = GridBagConstraints.BOTH;

    textarea = new TextArea();
    textarea.setEditable(false);
    c.gridwidth = GridBagConstraints.REMAINDER;
    gridbag.setConstraints(textarea,c);
    c.gridwidth = 1;
    add(textarea);

    {
      Label label = new Label("poly A:");
      gridbag.setConstraints(label,c);
      add(label);
    }

    button = new Button("generate random polynomial A");
    button.addActionListener(this);
    gridbag.setConstraints(button,c);
    add(button);

    button = new Button("A * B"); 
    button.addActionListener(this);
    c.gridwidth = GridBagConstraints.REMAINDER;
    gridbag.setConstraints(button,c);
    c.gridwidth = 1;
    add(button);

    poly1 = new TextField(20);
    poly1.addActionListener(this);
    c.gridwidth = 2;
    gridbag.setConstraints(poly1,c);
    c.gridwidth = 1;
    add(poly1);

    button = new Button("A % B");
    button.addActionListener(this);
    //c.gridx = 2;
    //c.weightx = 0.0;
    gridbag.setConstraints(button,c);
    add(button);

    button = new Button("swap A & B");
    button.addActionListener(this);
    c.gridwidth = GridBagConstraints.REMAINDER;
    gridbag.setConstraints(button,c);
    c.gridwidth = 1;
    add(button);

    {
      Label label = new Label("poly B:");
      gridbag.setConstraints(label,c);
      add(label);
    }

    button = new Button("generate random polynomial B");
    button.addActionListener(this);
    gridbag.setConstraints(button,c);
    add(button);

    button = new Button("poly1 <= poly2");
    button.addActionListener(this);
    c.gridwidth = GridBagConstraints.REMAINDER;
    gridbag.setConstraints(button,c);
    c.gridwidth = 1;
    add(button);

    poly2 = new TextField();
    c.gridwidth = 2;
    gridbag.setConstraints(poly2,c);
    c.gridwidth = 1;
    add(poly2);

    button = new Button("grobner base");
    button.addActionListener(this);
    gridbag.setConstraints(button,c);
    add(button);

    button = new Button("quit");
    button.addActionListener(this);
    gridbag.setConstraints(button,c);
    add(button);
  }

  public void run(){ // for debug
    try{
      while(true){
        CMO tmp;

        Thread.yield();

        switch(oxm.receiveOXtag()){
        case OpenXM.OX_COMMAND:
          oxm.receiveSM();
          break;

        case OpenXM.OX_DATA:
          tmp = oxm.receiveCMO();
          textarea.append("=> "+ tmp +"\n");
          break;
        }
      }
    }catch(java.io.IOException e){}
  }

  public void actionPerformed(ActionEvent evt) {
    String arg = evt.getActionCommand();

    debug("press \""+ arg +"\" button.");

    if(arg.equals("quit")){
    }else if(arg.equals("grobner base")){
      try{
	debug("poly A: "+ poly1.getText());
	oxm.sendCMO(new CMO_STRING("[[("+ poly1.getText() +") ("+ poly2.getText() +")] (x,y)] gb"));
	oxm.sendSM(new SM(SM.SM_executeStringByLocalParser));
	oxm.sendSM(new SM(SM.SM_popString));
      }catch(java.io.IOException e){
      }catch(MathcapViolation e){
      }
    }
    /*
      if ("first".equals(arg)) {
      ((CardLayout)cards.getLayout()).first(cards);
      } else if ("next".equals(arg)) {
      ((CardLayout)cards.getLayout()).next(cards);
      } else if ("previous".equals(arg)) {
      ((CardLayout)cards.getLayout()).previous(cards);
      } else if ("last".equals(arg)) {
      ((CardLayout)cards.getLayout()).last(cards);
      } else {
      ((CardLayout)cards.getLayout()).show(cards,(String)arg);
      }
      */
  }

  public void start(){
    textarea.append("Connecting to "+ host
		 +"("+ ControlPort +","+ DataPort +")\n");

    try{
      /*
	Runtime r = Runtime.getRuntime();

	r.exec("ox -ox ox_sm1");
	*/
      oxm = new OpenXM(host,ControlPort,DataPort);
      textarea.append("Connected.\n");
      oxm.sendCMO(new CMO_STRING("(cohom.sm1) run ;\n"));
      oxm.sendSM(new SM(SM.SM_executeStringByLocalParser));

      thread = new Thread(this);
      thread.start();
    }catch(java.io.IOException e){
      textarea.append("failed.\n");
      stop();
    }catch(MathcapViolation e){
    }
  }

  private void debug(String str){
    if(debug){
      System.out.println(str);
    }
  }

  private static String usage(){
    String ret = "";

    ret += "usage\t: java PolyCalc [options]\n";
    ret += "options\t:\n";
    ret += "\t -h \t show this message\n";
    ret += "\t -host hostname \t (default localhost)\n";
    ret += "\t -data port \t (default 1300)\n";
    ret += "\t -control port \t (default 1200)\n";
    ret += "\t -debug \t display debug message\n";

    return ret;
  }

  public static void main(String argv[]){
    Frame frame = new Frame("Polynomial Calculator");
    //Applet applet;
    PolyCalc applet;
    String host = "localhost";
    int DataPort = 1300, ControlPort = 1200;

    for(int i=0;i<argv.length;i++){
      if(argv[i].equals("-h")){
        System.out.print(usage());
        System.exit(0);
      }else if(argv[i].equals("-debug")){
	//debug = true;
      }else if(argv[i].equals("-host")){
        host = argv[++i];
      }else if(argv[i].equals("-data")){
        DataPort = Integer.valueOf(argv[++i]).intValue();
      }else if(argv[i].equals("-control")){
        ControlPort = Integer.valueOf(argv[++i]).intValue();
      }else{
        System.err.println("unknown option : "+ argv[i]);
        System.err.println("");
        System.err.print(usage());
        System.exit(1);
      }
    }
    applet = new PolyCalc(host,ControlPort,DataPort);
    applet.debug = true;

    applet.init();
    frame.add("Center",applet);
    frame.pack();
    frame.setSize(frame.getPreferredSize());
    frame.show();
    applet.start();
  }
}