README.md

@@ -15,6 +15,8 @@ Since Tengwar is inherently a phonetic script, converting english to Tengwar wou
 
 ![Tengwar](https://puu.sh/vtyfi/598ad704e1.png "Tengwar Characters")
 
+To translate from Tengwar back to English is much simpler, but because Tengwar characters do use capitalization, the resulting string of text will be in only lower-case letters.
+
 ### To-Do List
 
 * Implement s-curls.

src/net/agspace/Main.java

@@ -4,10 +4,8 @@ import javax.swing.*;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.event.InputEvent;
 import java.awt.event.KeyEvent;
-import java.beans.PropertyChangeListener;
-import java.io.File;
-import java.io.IOException;
 
 /**
  * @author Andrew Lalis
@@ -15,8 +13,8 @@ import java.io.IOException;
  */
 public class Main {
 
-    public static final String TITLE = "Tengwar Typewriter";
-    public static final String ICON_PATH = "resources/icon.png";
+    private static final String TITLE = "Tengwar Typewriter";
+    private static final String ICON_PATH = "resources/icon.png";
 
     public static void main(String[] args){
         JFrame f = new JFrame(TITLE);
@@ -31,31 +29,16 @@ public class Main {
             JMenu fileMenu = new JMenu("File");
                 //Save Item.
                 JMenuItem saveItem = new JMenuItem("Save");
-                saveItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
-                saveItem.addActionListener(new ActionListener() {
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        window.onSaveClicked();
-                    }
-                });
+                saveItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_DOWN_MASK));
+                saveItem.addActionListener(e -> window.onSaveClicked());
                 fileMenu.add(saveItem);
                 //Import Item.
                 JMenuItem importItem = new JMenuItem("Import");
-                importItem.addActionListener(new ActionListener() {
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        window.onImportClicked();
-                    }
-                });
+                importItem.addActionListener(e -> window.onImportClicked());
                 fileMenu.add(importItem);
                 //Exit Item.
                 JMenuItem exitItem = new JMenuItem("Exit");
-                exitItem.addActionListener(new ActionListener() {
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        f.dispose();
-                    }
-                });
+                exitItem.addActionListener(e -> f.dispose());
                 fileMenu.add(exitItem);
             menuBar.add(fileMenu);
             //Edit menu.
@@ -63,49 +46,29 @@ public class Main {
                 //Live checkbox
                 JCheckBoxMenuItem liveCheckBox = new JCheckBoxMenuItem("Live");
                 liveCheckBox.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L, ActionEvent.CTRL_MASK));
-                liveCheckBox.addActionListener(new ActionListener() {
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        window.onLiveToggled(e);
-                    }
-                });
+                liveCheckBox.addActionListener(e -> window.onLiveToggled(e));
                 editMenu.add(liveCheckBox);
             menuBar.add(editMenu);
             //About Menu.
             JMenu aboutMenu = new JMenu("About");
                 //Tengwar Item.
                 JMenuItem tengwarItem = new JMenuItem("Tengwar");
-                tengwarItem.addActionListener(new ActionListener() {
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        window.onTengwarAboutClicked();
-                    }
-                });
+                tengwarItem.addActionListener(e -> window.onTengwarAboutClicked());
                 aboutMenu.add(tengwarItem);
                 //English Mode.
                 JMenuItem englishModeItem = new JMenuItem("English Mode");
-                englishModeItem.addActionListener(new ActionListener() {
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        window.onEnglishModeAboutClicked();
-                    }
-                });
+                englishModeItem.addActionListener(e -> window.onEnglishModeAboutClicked());
                 aboutMenu.add(englishModeItem);
                 //About the author.
                 JMenuItem aboutMeItem = new JMenuItem("About the Author");
-                aboutMeItem.addActionListener(new ActionListener() {
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        window.onAboutMeClicked();
-                    }
-                });
+                aboutMeItem.addActionListener(e -> window.onAboutMeClicked());
                 aboutMenu.add(aboutMeItem);
             menuBar.add(aboutMenu);
 
 
         f.setJMenuBar(menuBar);
         f.pack();
-        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        f.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
         try {
             UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
         } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException e) {

src/net/agspace/Window.java

@@ -11,13 +11,13 @@ import java.awt.event.*;
 import java.io.*;
 import java.net.URI;
 import java.net.URISyntaxException;
-import java.nio.file.Files;
 import java.util.List;
 import java.util.ArrayList;
 
 public class Window {
 
-    public static final List<String> OPEN_FILE_EXTENSIONS = new ArrayList<>();
+    //List of files that can be imported.
+    private static final List<String> OPEN_FILE_EXTENSIONS = new ArrayList<>();
 
     static {
          OPEN_FILE_EXTENSIONS.add("txt");
@@ -39,40 +39,28 @@ public class Window {
 
     private boolean isLive = false;
 
-    public Window() {
-
+    Window() {
+        //Load the font into the system.
         GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
-        Font tengwar_annatar = null;
         try {
-            tengwar_annatar = Font.createFont(Font.TRUETYPE_FONT, this.getClass().getClassLoader().getResourceAsStream("resources/tngan.ttf"));
+            ge.registerFont(Font.createFont(Font.TRUETYPE_FONT, this.getClass().getClassLoader().getResourceAsStream("resources/tngan.ttf")));
         } catch (FontFormatException e) {
-            e.printStackTrace();
+            System.err.println("Font format exception!");
         } catch (IOException e) {
-            e.printStackTrace();
+            System.err.println("IOException!");
         }
-        ge.registerFont(tengwar_annatar);
 
         //Explicit translation from english to tengwar.
-        toTengwarButton.addActionListener(new ActionListener() {
-            @Override
-            public void actionPerformed(ActionEvent e) {
-                tengwarTextArea.setText(Translator.translateToTengwar(inputTextArea.getText()));
-            }
-        });
+        toTengwarButton.addActionListener(e -> tengwarTextArea.setText(Translator.translateToTengwar(inputTextArea.getText())));
+
         //Clear both text areas.
-        clearButton.addActionListener(new ActionListener() {
-            @Override
-            public void actionPerformed(ActionEvent e) {
+        clearButton.addActionListener(e -> {
             tengwarTextArea.setText(null);
             inputTextArea.setText(null);
-            }
         });
+
         //Translate tengwar to english.
-        toEnglishButton.addActionListener(new ActionListener() {
-            @Override
-            public void actionPerformed(ActionEvent e) {
-            }
-        });
+        toEnglishButton.addActionListener(e -> inputTextArea.setText(Translator.translateToEnglish(tengwarTextArea.getText())));
     }
 
     private void createUIComponents() {
@@ -95,26 +83,53 @@ public class Window {
             }
         });
         this.tengwarTextArea = new JTextArea();
+        tengwarTextArea.getDocument().addDocumentListener(new DocumentListener() {
+            @Override
+            public void insertUpdate(DocumentEvent e) {
+                onTengwarTextChanged();
+            }
+
+            @Override
+            public void removeUpdate(DocumentEvent e) {
+                onTengwarTextChanged();
+            }
+
+            @Override
+            public void changedUpdate(DocumentEvent e) {
+                onTengwarTextChanged();
+            }
+        });
         this.toTengwarButton = new JButton();
         this.toEnglishButton = new JButton();
         this.clearButton = new JButton();
         this.inputTextArea.requestFocus();
     }
 
-    public JPanel getMainPanel(){
+    JPanel getMainPanel(){
         return this.mainPanel;
     }
 
+    /**
+     * If the english text is changed, and live is selected, then update the tengwar text.
+     */
     private void onEnglishTextChanged(){
-        if (isLive)
+        if (isLive && inputTextArea.hasFocus())
             tengwarTextArea.setText(Translator.translateToTengwar(inputTextArea.getText()));
     }
 
+    /**
+     * If tengwar text is changed, and live is selected, then update the english text.
+     */
+    private void onTengwarTextChanged(){
+        if (isLive && tengwarTextArea.hasFocus())
+            inputTextArea.setText(Translator.translateToEnglish(tengwarTextArea.getText()));
+    }
+
     /**
      * Toggle the live button and disable translate buttons if needed.
      * @param e event generated by the check box.
      */
-    public void onLiveToggled(ActionEvent e){
+    void onLiveToggled(ActionEvent e){
         if (((JCheckBoxMenuItem) e.getSource()).getState()){
             //Deactivate buttons, set live to true.
             toTengwarButton.setEnabled(false);
@@ -131,7 +146,7 @@ public class Window {
     /**
      * What to do if the user clicks the 'import' button.
      */
-    public void onImportClicked(){
+    void onImportClicked(){
         JFileChooser fileChooser = new JFileChooser(System.getProperty("user.documents"));
         fileChooser.setFileFilter(new FileFilter() {
             @Override
@@ -139,10 +154,7 @@ public class Window {
                 if (f.isDirectory())
                     return true;
                 String extension = Utils.getExtension(f);
-                if (extension != null)
-                    return OPEN_FILE_EXTENSIONS.contains(extension.toLowerCase());
-                else
-                    return false;
+                return extension != null && OPEN_FILE_EXTENSIONS.contains(extension.toLowerCase());
             }
 
             @Override
@@ -171,7 +183,7 @@ public class Window {
     /**
      * What to do when the user wants to save their document.
      */
-    public void onSaveClicked(){
+    void onSaveClicked(){
         JFileChooser fileChooser = new JFileChooser(System.getProperty("user.documents"));
         int result = fileChooser.showSaveDialog(this.mainPanel);
         if (result == JFileChooser.APPROVE_OPTION){
@@ -186,7 +198,7 @@ public class Window {
     /**
      * Attempt to open the pdf in the browser.
      */
-    public void onEnglishModeAboutClicked(){
+    void onEnglishModeAboutClicked(){
         if (Desktop.isDesktopSupported()){
             try{
                 Desktop.getDesktop().browse(new URI("https://github.com/andrewlalis/TengwarTranslator/blob/master/src/resources/EnglishOneToOneTengwarV2-1.pdf"));
@@ -199,7 +211,7 @@ public class Window {
     /**
      * Attempt to open Tengwar wikipedia page.
      */
-    public void onTengwarAboutClicked(){
+    void onTengwarAboutClicked(){
         if (Desktop.isDesktopSupported()){
             try{
                 Desktop.getDesktop().browse(new URI("https://en.wikipedia.org/wiki/Tengwar"));
@@ -212,7 +224,7 @@ public class Window {
     /**
      * Attempt to open my github page.
      */
-    public void onAboutMeClicked(){
+    void onAboutMeClicked(){
         if (Desktop.isDesktopSupported()){
             try{
                 Desktop.getDesktop().browse(new URI("https://github.com/andrewlalis"));

src/net/agspace/translate/Translator.java

@@ -1,28 +1,12 @@
 package net.agspace.translate;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 /**
 * Created by Andrew's Computer on 23-Apr-17.
 */
 public class Translator {
 
-    private enum CHAR_TYPE {
-        CONSONANT,
-        COMPOUND,
-        ALTERNATE,
-        VOWEL,
-        NUMBER,
-        CARRIER,
-        PUNCTUATION,
-        BAR,
-        S_CURL,
-        UNKNOWN,
-    }
-
     //Consonant variables.
     private static final char B = 'w';
     private static final char C = 'c';
@@ -184,7 +168,6 @@ public class Translator {
         alternateChars.put('s', S_ALT);
         alternateChars.put('z', Z_ALT);
         alternateChars.put('w', W_ALT);
-        //alternateChars.put('r', R_ALT); R alt is used if followed by a vowel.
         alternateChars.put('y', Y_ALT);
     }
 
@@ -372,6 +355,92 @@ public class Translator {
         return (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u');
     }
 
+    /**
+     * Determines if a tengwar character is a vowel.
+     * @param c tengwar char to check.
+     * @return true if vowel, false if not.
+     */
+    private static boolean isVowelTengwar(char c){
+        for (Character[] ch : vowelChars.values()){
+            for (char cha : ch){
+                if (cha == c)
+                    return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Returns the english vowel representation of a tengwar vowel.
+     * @param tengwarVowel The tengwar vowel to decipher.
+     * @return english vowel char.
+     */
+    private static char getEnglishVowel(char tengwarVowel){
+        if (!isVowelTengwar(tengwarVowel)){
+            return 0;
+        }
+        for (Character[] ch : vowelChars.values()){
+            for (char cha : ch){
+                if (cha == tengwarVowel) {
+                    return getKeyByValue(vowelChars, ch);
+                }
+            }
+        }
+        return 0;
+    }
+
+    /**
+     * Determines if a tengwar char is a silent E.
+     * @param tengwarChar the tengwar char to evaluate.
+     * @return True if it is a silent E, false otherwise.
+     */
+    private static boolean isSilentE(char tengwarChar){
+        return tengwarChar == E_UNDER_1
+                || tengwarChar == E_UNDER_2
+                || tengwarChar == E_UNDER_3
+                || tengwarChar == E_UNDER_4
+                || tengwarChar == E_LAMBE;
+    }
+
+    /**
+     * Returns a character or string that is a literal translation from tengwar.
+     * @param tengwarChar the tengwar char to translate.
+     * @return english representation of the tengwar.
+     */
+    private static String getEnglishLiteral(char tengwarChar){
+        if (consonantChars.containsValue(tengwarChar)){
+            return getKeyByValue(consonantChars, tengwarChar).toString();
+        } else if (compoundChars.containsValue(tengwarChar)){
+            return getKeyByValue(compoundChars, tengwarChar);
+        } else if (alternateChars.containsValue(tengwarChar)) {
+            return getKeyByValue(alternateChars, tengwarChar).toString();
+        } else if (tengwarChar == R_ALT){
+            return "r";
+        } else if (numberChars.containsValue(tengwarChar)){
+            return getKeyByValue(numberChars, tengwarChar).toString();
+        } else if (punctuationChars.containsValue(tengwarChar)){
+            return getKeyByValue(punctuationChars, tengwarChar).toString();
+        }
+        return null;
+    }
+
+    /**
+     * Returns the key for a specified value in a 1 to 1 map.
+     * @param map The 1 to 1 map to use.
+     * @param value Value to return the key of.
+     * @param <T> Key type of the map.
+     * @param <E> Value type of the map.
+     * @return Key associated with value.
+     */
+    private static <T, E> T getKeyByValue(Map<T, E> map, E value) {
+        for (Map.Entry<T, E> entry : map.entrySet()) {
+            if (Objects.equals(value, entry.getValue())) {
+                return entry.getKey();
+            }
+        }
+        return null;
+    }
+
     /**
      * Translate an english string to tengwar.
      * @param englishString english string.
@@ -380,19 +449,14 @@ public class Translator {
     public static String translateToTengwar(String englishString){
         StringBuilder result = new StringBuilder(englishString.length());
         String input = englishString.toLowerCase().trim();
-
         for (int i = 0; i < input.length(); i++){
             //Attempt to get previous, current, and next char.
             char currentChar = input.charAt(i);
-            char previousChar = 0;
             char nextChar = 0;
-            try{
-                previousChar = input.charAt(i-1);
-            } catch (IndexOutOfBoundsException e){
-            }
             try{
                 nextChar = input.charAt(i+1);
             } catch (IndexOutOfBoundsException e){
+                //Do nothing, since this may happen.
             }
             //Test if the current char is a vowel.
             if (isVowel(currentChar)){
@@ -429,6 +493,7 @@ public class Translator {
                     }
                     result.append(tengwarCharToBeAdded);
                     result.append(getAppropriateVowel(tengwarCharToBeAdded, currentChar));
+                    //Bar gets added after the vowel.
                     if (needsBar)
                         result.append(bars.get(barSizes.get(tengwarCharToBeAdded)));
                     i++;
@@ -483,4 +548,60 @@ public class Translator {
         }
         return result.toString();
     }
+
+    /**
+     * Translates a tengwar string to english.
+     * @param tengwarString tengwar string.
+     * @return english string.
+     */
+    public static String translateToEnglish(String tengwarString){
+        StringBuilder result = new StringBuilder(tengwarString.length()+tengwarString.length()/2);
+        for (int i = 0; i < tengwarString.length(); i++){
+            char currentChar = tengwarString.charAt(i);
+            char nextChar = 0;
+            char secondNextChar = 0;
+            try{
+                nextChar = tengwarString.charAt(i+1);
+            } catch (IndexOutOfBoundsException e){
+                //Do nothing, this is fine.
+            }
+            try{
+                secondNextChar = tengwarString.charAt(i+2);
+            } catch (IndexOutOfBoundsException e){
+                //Do nothing, this is fine.
+            }
+            String currentLiteral = getEnglishLiteral(currentChar);
+            //Check if the current character is a literal translation.
+            if (currentLiteral != null){
+                //Check if the next character is a vowel that should be placed before a character.
+                if (isVowelTengwar(nextChar) && !isSilentE(nextChar)){
+                    result.append(getEnglishVowel(nextChar));
+                    result.append(currentLiteral);
+                    i++;
+                    //Check for a double-bar, and then add whatever the current char is.
+                    if (bars.contains(secondNextChar)){
+                        result.append(currentLiteral);
+                        i++;
+                    }
+                } else if (bars.contains(nextChar)){
+                        result.append(currentLiteral);
+                        i++;
+                } else {
+                    //Just append the current literal, no skipping.
+                    result.append(currentLiteral);
+                }
+            } else {
+                //Current character is not a literal translation, so it is an E_UNDER, or carrier.
+                if (carriers.contains(currentChar)){
+                    //If carrier, append the following vowel.
+                    result.append(getEnglishVowel(nextChar));
+                    i++;
+                } else if (isSilentE(currentChar)) {
+                    result.append('e');
+                }
+            }
+
+        }
+        return result.toString();
+    }
 }