// brad geilfuss - mas962 - ps1, p2 & p3


import java.awt.*;
import java.util.*;
import java.applet.*;
import java.io.*;
import java.net.*;

public class translateTextPlus extends java.applet.Applet {



	Hashtable alphabet = new Hashtable(100);
	TextField textField;
	Button button;
	TextArea textArea;
	Font FieldFont = new Font("Helvetica", Font.PLAIN, 14);	
	Font AreaFont = new Font("Courier", Font.PLAIN, 24);

	
	public void init(){
			
		System.out.println("------------------------------");
		System.out.println("b. geilfuss");
		System.out.println("translateTextPlus update 9/12 2:30");
		System.out.println("------------------------------");
		


		readIn("http://acg.media.mit.edu/mas962/ps1/code.txt");  // read in hashtable
		readIn("http://acg.media.mit.edu/mas962/users/geilfuss/ps1/p3/code.txt");

		// here is the setup.  nothing special.

		GridBagLayout gridbag = new GridBagLayout();
		GridBagConstraints c = new GridBagConstraints();
		
		this.setLayout(gridbag);
		this.setBackground(Color.white);
		this.setForeground(Color.black);

		c.weightx=1.0;
		c.weighty=1.0;
		c.fill = GridBagConstraints.BOTH;
		c.gridwidth=GridBagConstraints.REMAINDER;

		textArea = new TextArea();
		textArea.setEditable(false);
		gridbag.setConstraints (textArea, c);
	
		c.weighty=0.0;
		c.fill = GridBagConstraints.HORIZONTAL;
		c.gridwidth = GridBagConstraints.REMAINDER;

		button = new Button ("parse.");
		gridbag.setConstraints(button, c);

		textField = new TextField(20);
		gridbag.setConstraints (textField, c);
	
		add(textArea);
		add(textField);
		add(button);		
		
		textArea.setFont(AreaFont);
		textField.setFont(FieldFont);

	}





	
	public boolean action (Event e, Object arg) {

		Object target = e.target;

		if (target==button) {
			
			textArea.setText("");  // erase text area

			String text = new String(textField.getText());
			String translatedWord, Modifier="";
			char[] letter = new char[1];
			int lineLength = 0;
			int TAlength = this.size().width-40;
			int w;

			for(int i=0; i<text.length(); i++) {
				
				letter[0]=text.charAt(i);
				translatedWord=(String)alphabet.get(new String(letter));



				if (translatedWord != null) {
										
					blackBox Three = new blackBox(Modifier,
								translatedWord);
					translatedWord = Three.returnString();
					Modifier="";
					w = getFontMetrics(AreaFont).stringWidth(
						translatedWord);

					lineLength += w;

					if (lineLength>TAlength && w<(TAlength+1)) {
						textArea.appendText("\n");
						lineLength = w;
					}

					if (w>TAlength) {
						translatedWord=
							breakWord(translatedWord,
							TAlength, lineLength-w);
					}


					textArea.appendText(translatedWord);


				}

				else {
					Modifier=Modifier+new String(letter);
				}

			}

		}

		return true;
	}



	public String breakWord (String WordIn, int w, int length) {
	
		char[] Letter = new char[1];
		String Word="";

		for (int j=0; j<WordIn.length(); j++) {
		
			Letter[0]=WordIn.charAt(j);
			length+= getFontMetrics(AreaFont)
				.stringWidth(new String(Letter));
			if (length>w){
				Word+= "\n";
				length=0;
				Word+=new String(Letter);
			}
			
			else {
				Word+=new String(Letter);
			}
		}
		
		return (Word);

	}	

	
	
	public void readIn(String urlName) {

		try {

			URL is = new URL(urlName);
			StreamTokenizer st = new StreamTokenizer(is.openStream());
			
			// this parser assumes no broken files!
			// therefore barring EOF, i'm going
			// to make TWO nextTokens calls and only test for the first.
		
			System.out.println("reading from:"+urlName);

			String letter;
			String word;
		
			while (st.nextToken() != st.TT_EOF) {
				st.toString();
				letter = st.sval;

				st.nextToken();
				st.toString();	
				word = st.sval;				

				System.out.println("read:"+letter+","+word);
				alphabet.put(letter, word);
			}
		}
		catch (IOException e) {
			System.out.println("!");

		}
		
	}
}