jars/icu4j-4_4_2-src/demos/src/com/ibm/icu/dev/demo/rbnf/RbnfDemo.java

   1 /*\r
   2  *******************************************************************************\r
   3  * Copyright (C) 1996-2010, International Business Machines Corporation and    *\r
   4  * others. All Rights Reserved.                                                *\r
   5  *******************************************************************************\r
   6  */\r
   7 package com.ibm.icu.dev.demo.rbnf;\r
   8 \r
   9 import java.awt.BorderLayout;\r
  10 import java.awt.Button;\r
  11 import java.awt.CardLayout;\r
  12 import java.awt.Checkbox;\r
  13 import java.awt.Choice;\r
  14 import java.awt.Component;\r
  15 import java.awt.Dimension;\r
  16 import java.awt.Font;\r
  17 import java.awt.FontMetrics;\r
  18 import java.awt.Frame;\r
  19 import java.awt.Graphics;\r
  20 import java.awt.GridLayout;\r
  21 import java.awt.Panel;\r
  22 import java.awt.ScrollPane;\r
  23 import java.awt.TextArea;\r
  24 import java.awt.TextComponent;\r
  25 import java.awt.TextField;\r
  26 import java.awt.event.ActionEvent;\r
  27 import java.awt.event.ActionListener;\r
  28 import java.awt.event.FocusAdapter;\r
  29 import java.awt.event.FocusEvent;\r
  30 import java.awt.event.FocusListener;\r
  31 import java.awt.event.ItemEvent;\r
  32 import java.awt.event.ItemListener;\r
  33 import java.awt.event.KeyAdapter;\r
  34 import java.awt.event.KeyEvent;\r
  35 import java.awt.event.KeyListener;\r
  36 import java.awt.event.TextEvent;\r
  37 import java.awt.event.TextListener;\r
  38 import java.awt.event.WindowAdapter;\r
  39 import java.awt.event.WindowEvent;\r
  40 import java.text.BreakIterator;\r
  41 import java.text.DecimalFormat;\r
  42 import java.text.ParsePosition;\r
  43 import java.util.Locale;\r
  44 \r
  45 import com.ibm.icu.dev.demo.impl.DemoApplet;\r
  46 import com.ibm.icu.text.RuleBasedNumberFormat;\r
  47 \r
  48 public class RbnfDemo extends DemoApplet {\r
  49     /**\r
  50      * For serialization\r
  51      */\r
  52     private static final long serialVersionUID = -9119861296873763536L;\r
  53 \r
  54     /**\r
  55      * Puts a copyright in the .class file\r
  56      */\r
  57 //    private static final String copyrightNotice\r
  58 //        = "Copyright \u00a91997-1998 IBM Corp.  All rights reserved.";\r
  59 \r
  60     /*\r
  61      * code to run the demo as an application\r
  62      */\r
  63     public static void main(String[] argv) {\r
  64         new RbnfDemo().showDemo();\r
  65     }\r
  66 \r
  67     protected Dimension getDefaultFrameSize(DemoApplet applet, Frame f) {\r
  68         return new Dimension(430,270);\r
  69     }\r
  70 \r
  71     protected Frame createDemoFrame(DemoApplet applet) {\r
  72         final Frame window = new Frame("Number Spellout Demo");\r
  73         window.setSize(800, 600);\r
  74         window.setLayout(new BorderLayout());\r
  75 \r
  76         Panel mainPanel = new Panel();\r
  77         mainPanel.setLayout(new GridLayout(1,2));\r
  78 \r
  79         commentaryField = new TextArea("", 0, 0, TextArea.SCROLLBARS_VERTICAL_ONLY);\r
  80         commentaryField.setSize(800, 50);\r
  81         commentaryField.setText(RbnfSampleRuleSets.sampleRuleSetCommentary[0]);\r
  82         commentaryField.setEditable(false);\r
  83         commentaryField.setFont(new Font("Helvetica", Font.PLAIN, 14));\r
  84 \r
  85         spelloutFormatter = new RuleBasedNumberFormat(RbnfSampleRuleSets.usEnglish, Locale.US);\r
  86         spelloutFormatter.setLenientParseMode(lenientParse);\r
  87         populateRuleSetMenu();\r
  88         numberFormatter = new DecimalFormat("#,##0.##########");\r
  89         parsePosition = new ParsePosition(0);\r
  90         theNumber = 0;\r
  91 \r
  92         numberField = new TextField();\r
  93         numberField.setFont(new Font("Serif", Font.PLAIN, 24));\r
  94         textField = new DemoTextFieldHolder();\r
  95         textField.setFont(new Font("Serif", Font.PLAIN, 24));\r
  96         rulesField = new DemoTextFieldHolder();\r
  97         rulesField.setFont(new Font("Serif", Font.PLAIN, 14));\r
  98         lenientParseButton = new Checkbox("Lenient parse", lenientParse);\r
  99 \r
 100         numberField.addTextListener(new TextListener() {\r
 101             public void textValueChanged(TextEvent e) {\r
 102                 if (!numberFieldHasFocus)\r
 103                     return;\r
 104 \r
 105                 String fieldText = ((TextComponent)(e.getSource())).getText();\r
 106                 parsePosition.setIndex(0);\r
 107                 Number temp = numberFormatter.parse(fieldText, parsePosition);\r
 108                 if (temp == null || parsePosition.getIndex() == 0) {\r
 109                     theNumber = 0;\r
 110                     textField.setText("PARSE ERROR");\r
 111                 }\r
 112                 else {\r
 113                     theNumber = temp.doubleValue();\r
 114                     textField.setText(spelloutFormatter.format(theNumber, ruleSetName));\r
 115                 }\r
 116             }\r
 117         } );\r
 118 \r
 119         numberField.addFocusListener(new FocusAdapter() {\r
 120             public void focusLost(FocusEvent e) {\r
 121                 numberFieldHasFocus = false;\r
 122                 numberField.setText(numberFormatter.format(theNumber));\r
 123             }\r
 124 \r
 125             public void focusGained(FocusEvent e) {\r
 126                 numberFieldHasFocus = true;\r
 127                 numberField.selectAll();\r
 128             }\r
 129         } );\r
 130 \r
 131         textField.addKeyListener(new KeyAdapter() {\r
 132             public void keyTyped(KeyEvent e) {\r
 133                 if (e.getKeyChar() == '\t') {\r
 134                     String fieldText = ((TextComponent)(e.getSource())).getText();\r
 135                     parsePosition.setIndex(0);\r
 136                     theNumber = spelloutFormatter.parse(fieldText, parsePosition)\r
 137                                         .doubleValue();\r
 138                     if (parsePosition.getIndex() == 0) {\r
 139                         theNumber = 0;\r
 140                         numberField.setText("PARSE ERROR");\r
 141                         textField.selectAll();\r
 142                     }\r
 143                     else if (parsePosition.getIndex() < fieldText.length()) {\r
 144                         textField.select(parsePosition.getIndex(), fieldText.length());\r
 145                         numberField.setText(numberFormatter.format(theNumber));\r
 146                     }\r
 147                     else {\r
 148                         textField.selectAll();\r
 149                         numberField.setText(numberFormatter.format(theNumber));\r
 150                     }\r
 151                     e.consume();\r
 152                 }\r
 153             }\r
 154         } );\r
 155 \r
 156         textField.addFocusListener(new FocusAdapter() {\r
 157             public void focusLost(FocusEvent e) {\r
 158                 String fieldText = ((TextComponent)(e.getSource())).getText();\r
 159                 parsePosition.setIndex(0);\r
 160                 theNumber = spelloutFormatter.parse(fieldText, parsePosition)\r
 161                                 .doubleValue();\r
 162                 if (parsePosition.getIndex() == 0)\r
 163                     numberField.setText("PARSE ERROR");\r
 164                 else\r
 165                     numberField.setText(numberFormatter.format(theNumber));\r
 166                 textField.setText(textField.getText()); // textField.repaint() didn't work right\r
 167             }\r
 168 \r
 169             public void focusGained(FocusEvent e) {\r
 170                 textField.selectAll();\r
 171             }\r
 172         } );\r
 173 \r
 174         rulesField.addKeyListener(new KeyAdapter() {\r
 175             public void keyTyped(KeyEvent e) {\r
 176                 if (e.getKeyChar() == '\t') {\r
 177                     String fieldText = ((TextComponent)(e.getSource())).getText();\r
 178                     if (formatterMenu.getSelectedItem().equals("Custom") || !fieldText.equals(\r
 179                                     RbnfSampleRuleSets.sampleRuleSets[formatterMenu.getSelectedIndex()])) {\r
 180                         try {\r
 181                             RuleBasedNumberFormat temp = new RuleBasedNumberFormat(fieldText);\r
 182                             temp.setLenientParseMode(lenientParse);\r
 183                             populateRuleSetMenu();\r
 184                             spelloutFormatter = temp;\r
 185                             customRuleSet = fieldText;\r
 186                             formatterMenu.select("Custom");\r
 187                             commentaryField.setText(RbnfSampleRuleSets.\r
 188                                 sampleRuleSetCommentary[RbnfSampleRuleSets.\r
 189                                 sampleRuleSetCommentary.length - 1]);\r
 190                             redisplay();\r
 191                         }\r
 192                         catch (Exception x) {\r
 193                             textField.setText(x.toString());\r
 194                         }\r
 195                     }\r
 196                     e.consume();\r
 197                 }\r
 198             }\r
 199         } );\r
 200 \r
 201         rulesField.addFocusListener(new FocusAdapter() {\r
 202             public void focusLost(FocusEvent e) {\r
 203                 String fieldText = ((TextComponent)(e.getSource())).getText();\r
 204                 if (formatterMenu.getSelectedItem().equals("Custom") || !fieldText.equals(\r
 205                                 RbnfSampleRuleSets.sampleRuleSets[formatterMenu.getSelectedIndex()])) {\r
 206                     try {\r
 207                         RuleBasedNumberFormat temp = new RuleBasedNumberFormat(fieldText);\r
 208                         temp.setLenientParseMode(lenientParse);\r
 209                         populateRuleSetMenu();\r
 210                         spelloutFormatter = temp;\r
 211                         customRuleSet = fieldText;\r
 212                         formatterMenu.select("Custom");\r
 213                         redisplay();\r
 214                     }\r
 215                     catch (Exception x) {\r
 216                         textField.setText(x.toString());\r
 217                     }\r
 218                 }\r
 219                 rulesField.setText(rulesField.getText()); // rulesField.repaint() didn't work right\r
 220             }\r
 221         } );\r
 222 \r
 223         lenientParseButton.addItemListener(new ItemListener() {\r
 224             public void itemStateChanged(ItemEvent e) {\r
 225                 lenientParse = lenientParseButton.getState();\r
 226                 spelloutFormatter.setLenientParseMode(lenientParse);\r
 227             }\r
 228         } );\r
 229 \r
 230         numberField.setText(numberFormatter.format(theNumber));\r
 231         numberField.selectAll();\r
 232         textField.setText(spelloutFormatter.format(theNumber, ruleSetName));\r
 233 \r
 234         Panel leftPanel = new Panel();\r
 235         leftPanel.setLayout(new BorderLayout());\r
 236         Panel panel = new Panel();\r
 237         panel.setLayout(new BorderLayout());\r
 238         Panel panel1 = new Panel();\r
 239         panel1.setLayout(new GridLayout(3, 1));\r
 240         panel1.add(new Panel());\r
 241         panel1.add(numberField, "Center");\r
 242         panel1.add(lenientParseButton);\r
 243         panel.add(panel1, "Center");\r
 244         Panel panel2 = new Panel();\r
 245         panel2.setLayout(new GridLayout(3, 3));\r
 246         Button button = new Button("+100");\r
 247         button.addActionListener( new ActionListener() {\r
 248             public void actionPerformed(ActionEvent e) {\r
 249                 roll(100);\r
 250             }\r
 251         } );\r
 252         panel2.add(button);\r
 253         button = new Button("+10");\r
 254         button.addActionListener( new ActionListener() {\r
 255             public void actionPerformed(ActionEvent e) {\r
 256                 roll(10);\r
 257             }\r
 258         } );\r
 259         panel2.add(button);\r
 260         button = new Button("+1");\r
 261         button.addActionListener( new ActionListener() {\r
 262             public void actionPerformed(ActionEvent e) {\r
 263                 roll(1);\r
 264             }\r
 265         } );\r
 266         panel2.add(button);\r
 267         button = new Button("<");\r
 268         button.addActionListener( new ActionListener() {\r
 269             public void actionPerformed(ActionEvent e) {\r
 270                 theNumber *= 10;\r
 271                 redisplay();\r
 272             }\r
 273         } );\r
 274         panel2.add(button);\r
 275         panel2.add(new Panel());\r
 276         button = new Button(">");\r
 277         button.addActionListener( new ActionListener() {\r
 278             public void actionPerformed(ActionEvent e) {\r
 279                 theNumber /= 10;\r
 280                 redisplay();\r
 281             }\r
 282         } );\r
 283         panel2.add(button);\r
 284         button = new Button("-100");\r
 285         button.addActionListener( new ActionListener() {\r
 286             public void actionPerformed(ActionEvent e) {\r
 287                 roll(-100);\r
 288             }\r
 289         } );\r
 290         panel2.add(button);\r
 291         button = new Button("-10");\r
 292         button.addActionListener( new ActionListener() {\r
 293             public void actionPerformed(ActionEvent e) {\r
 294                 roll(-10);\r
 295             }\r
 296         } );\r
 297         panel2.add(button);\r
 298         button = new Button("-1");\r
 299         button.addActionListener( new ActionListener() {\r
 300             public void actionPerformed(ActionEvent e) {\r
 301                 roll(-1);\r
 302             }\r
 303         } );\r
 304         panel2.add(button);\r
 305         panel.add(panel2, "East");\r
 306         leftPanel.add(panel, "North");\r
 307         leftPanel.add(textField, "Center");\r
 308 \r
 309         Panel rightPanel = new Panel();\r
 310         rightPanel.setLayout(new BorderLayout());\r
 311         formatterMenu = new Choice();\r
 312         for (int i = 0; i < RbnfSampleRuleSets.sampleRuleSetNames.length; i++)\r
 313             formatterMenu.addItem(RbnfSampleRuleSets.sampleRuleSetNames[i]);\r
 314         formatterMenu.addItem("Custom");\r
 315         formatterMenu.addItemListener(new ItemListener() {\r
 316             public void itemStateChanged(ItemEvent e) {\r
 317                 Choice source = (Choice)(e.getSource());\r
 318                 int item = source.getSelectedIndex();\r
 319                 Locale locale = RbnfSampleRuleSets.sampleRuleSetLocales[item];\r
 320 \r
 321                 commentaryField.setText(RbnfSampleRuleSets.\r
 322                                 sampleRuleSetCommentary[item]);\r
 323 \r
 324                 if (locale != null && (locale.getLanguage().equals("iw")\r
 325                         || locale.getLanguage().equals("ru") || locale.getLanguage().equals("ja")\r
 326                         || locale.getLanguage().equals("el")\r
 327                         || locale.getLanguage().equals("zh"))) {\r
 328                     textField.togglePanes(false);\r
 329                     rulesField.togglePanes(false);\r
 330                 }\r
 331                 else {\r
 332                     textField.togglePanes(true);\r
 333                     rulesField.togglePanes(true);\r
 334                 }\r
 335 \r
 336                 makeNewSpelloutFormatter();\r
 337                 redisplay();\r
 338             }\r
 339         } );\r
 340 \r
 341         ruleSetMenu = new Choice();\r
 342         populateRuleSetMenu();\r
 343 \r
 344         ruleSetMenu.addItemListener(new ItemListener() {\r
 345             public void itemStateChanged(ItemEvent e) {\r
 346                 ruleSetName = ruleSetMenu.getSelectedItem();\r
 347                 redisplay();\r
 348             }\r
 349         } );\r
 350 \r
 351         Panel menuPanel = new Panel();\r
 352         menuPanel.setLayout(new GridLayout(1, 2));\r
 353         menuPanel.add(formatterMenu);\r
 354         menuPanel.add(ruleSetMenu);\r
 355         rightPanel.add(menuPanel, "North");\r
 356 \r
 357         rulesField.setText(RbnfSampleRuleSets.sampleRuleSets[formatterMenu.getSelectedIndex()]);\r
 358         rightPanel.add(rulesField, "Center");\r
 359 \r
 360         mainPanel.add(leftPanel);\r
 361         mainPanel.add(rightPanel);\r
 362 \r
 363         window.add(mainPanel, "Center");\r
 364         window.add(commentaryField, "South");\r
 365 \r
 366         window.doLayout();\r
 367         window.show();\r
 368         final DemoApplet theApplet = applet;\r
 369         window.addWindowListener(\r
 370                 new WindowAdapter() {\r
 371                     public void windowClosing(WindowEvent e) {\r
 372                         setVisible(false);\r
 373                         window.dispose();\r
 374 \r
 375                         if (theApplet != null) {\r
 376                             theApplet.demoClosed();\r
 377                         } else System.exit(0);\r
 378                     }\r
 379                 } );\r
 380         return window;\r
 381     }\r
 382 \r
 383     void roll(int delta) {\r
 384         theNumber += delta;\r
 385         redisplay();\r
 386     }\r
 387 \r
 388     void redisplay() {\r
 389         numberField.setText(numberFormatter.format(theNumber));\r
 390         textField.setText(spelloutFormatter.format(theNumber, ruleSetName));\r
 391     }\r
 392 \r
 393     void makeNewSpelloutFormatter() {\r
 394         int item = formatterMenu.getSelectedIndex();\r
 395         String formatterMenuItem = formatterMenu.getSelectedItem();\r
 396 \r
 397         if (formatterMenuItem.equals("Custom")) {\r
 398             rulesField.setText(customRuleSet);\r
 399             spelloutFormatter = new RuleBasedNumberFormat(customRuleSet);\r
 400         }\r
 401         else {\r
 402             rulesField.setText(RbnfSampleRuleSets.sampleRuleSets[item]);\r
 403 \r
 404             Locale locale = RbnfSampleRuleSets.sampleRuleSetLocales[item];\r
 405             if (locale == null)\r
 406                 locale = Locale.getDefault();\r
 407 \r
 408             spelloutFormatter = new RuleBasedNumberFormat(RbnfSampleRuleSets.\r
 409                             sampleRuleSets[item], locale);\r
 410         }\r
 411         spelloutFormatter.setLenientParseMode(lenientParse);\r
 412         populateRuleSetMenu();\r
 413     }\r
 414 \r
 415     void populateRuleSetMenu() {\r
 416         String[] ruleSetNames = spelloutFormatter.getRuleSetNames();\r
 417 \r
 418         if (ruleSetMenu != null) {\r
 419             ruleSetMenu.removeAll();\r
 420             for (int i = 0; i < ruleSetNames.length; i++)\r
 421                 ruleSetMenu.addItem(ruleSetNames[i]);\r
 422 \r
 423             ruleSetName = ruleSetMenu.getSelectedItem();\r
 424         }\r
 425         else\r
 426             ruleSetName = ruleSetNames[0];\r
 427     }\r
 428 \r
 429 //    private Frame demoWindow = null;\r
 430 \r
 431     private TextComponent numberField;\r
 432     private DemoTextFieldHolder textField;\r
 433     private DemoTextFieldHolder rulesField;\r
 434     private TextComponent commentaryField;\r
 435     private Checkbox lenientParseButton;\r
 436 \r
 437     private boolean numberFieldHasFocus = true;\r
 438 \r
 439     private RuleBasedNumberFormat spelloutFormatter;\r
 440     private DecimalFormat numberFormatter;\r
 441     private ParsePosition parsePosition;\r
 442 \r
 443     private boolean lenientParse = true;\r
 444 \r
 445     private double theNumber = 0;\r
 446 //    private boolean canEdit = true;\r
 447 \r
 448     private Choice formatterMenu;\r
 449     private Choice ruleSetMenu;\r
 450     private String ruleSetName;\r
 451 \r
 452     private String customRuleSet = "NO RULES!";\r
 453 }\r
 454 \r
 455 class DemoTextField extends Component {\r
 456     /**\r
 457      * For serialization\r
 458      */\r
 459     private static final long serialVersionUID = -7947090021239472658L;\r
 460     public DemoTextField() {\r
 461     }\r
 462 \r
 463     public void setText(String text) {\r
 464         this.text = text;\r
 465         this.repaint();\r
 466     }\r
 467 \r
 468     public String getText() {\r
 469         return text;\r
 470     }\r
 471 \r
 472     public void paint(Graphics g) {\r
 473         Font font = getFont();\r
 474         FontMetrics fm = g.getFontMetrics();\r
 475         g.setFont(font);\r
 476         String txt = getText();\r
 477         BreakIterator bi = BreakIterator.getLineInstance();\r
 478         bi.setText(txt);\r
 479         int lineHeight = fm.getHeight();\r
 480         int width = getSize().width;\r
 481         int penY = fm.getAscent();\r
 482         int lineStart = 0;\r
 483         int tempLineEnd = bi.first();\r
 484         int lineEnd = 0;\r
 485         int maxLineEnd = 0;\r
 486         totalHeight = 0;\r
 487 \r
 488         while (lineStart < txt.length()) {\r
 489             maxLineEnd = txt.indexOf('\n', lineStart);\r
 490             if (maxLineEnd == -1)\r
 491                 maxLineEnd = Integer.MAX_VALUE;\r
 492             while (tempLineEnd != BreakIterator.DONE && fm.stringWidth(txt.substring(\r
 493                             lineStart, tempLineEnd)) < width) {\r
 494                 lineEnd = tempLineEnd;\r
 495                 tempLineEnd = bi.next();\r
 496             }\r
 497             if (lineStart >= lineEnd) {\r
 498                 if (tempLineEnd == BreakIterator.DONE)\r
 499                     lineEnd = txt.length();\r
 500                 else\r
 501                     lineEnd = tempLineEnd;\r
 502             }\r
 503             if (lineEnd > maxLineEnd)\r
 504                 lineEnd = maxLineEnd;\r
 505             g.drawString(txt.substring(lineStart, lineEnd), 0, penY);\r
 506             penY += lineHeight;\r
 507             totalHeight += lineHeight;\r
 508             lineStart = lineEnd;\r
 509             if (lineStart < txt.length() && txt.charAt(lineStart) == '\n')\r
 510                 ++lineStart;\r
 511         }\r
 512     }\r
 513 \r
 514 /*\r
 515     public Dimension getPreferredSize() {\r
 516         Dimension size = getParent().getSize();\r
 517         return new Dimension(size.width, totalHeight);\r
 518     }\r
 519 */\r
 520 \r
 521     private String text;\r
 522     private int totalHeight;\r
 523 }\r
 524 \r
 525 class DemoTextFieldHolder extends Panel {\r
 526     /**\r
 527      * For serialization\r
 528      */\r
 529     private static final long serialVersionUID = 7514498764062569858L;\r
 530     public DemoTextFieldHolder() {\r
 531         tf1 = new TextArea("", 0, 0, TextArea.SCROLLBARS_VERTICAL_ONLY);\r
 532         tf2 = new DemoTextField();\r
 533         sp = new ScrollPane();\r
 534 \r
 535         setLayout(new CardLayout());\r
 536 \r
 537         sp.add(tf2, "TextField1");\r
 538         sp.setVisible(false);\r
 539         add(tf1, "TestField2");\r
 540         add(sp, "ScrollPane");\r
 541     }\r
 542 \r
 543     public void addFocusListener(FocusListener l) {\r
 544         tf1.addFocusListener(l);\r
 545     }\r
 546 \r
 547     public void addKeyListener(KeyListener l) {\r
 548         tf1.addKeyListener(l);\r
 549     }\r
 550 \r
 551     public void setText(String text) {\r
 552         tf1.setText(text);\r
 553         tf2.setText(text);\r
 554     }\r
 555 \r
 556     public String getText() {\r
 557         return tf1.getText();\r
 558     }\r
 559 \r
 560     public void select(int start, int end) {\r
 561         tf1.select(start, end);\r
 562     }\r
 563 \r
 564     public void selectAll() {\r
 565         tf1.selectAll();\r
 566     }\r
 567 \r
 568     public void togglePanes(boolean canShowRealTextField) {\r
 569         if (canShowRealTextField != showingRealTextField) {\r
 570             CardLayout layout = (CardLayout)(getLayout());\r
 571             layout.next(this);\r
 572             showingRealTextField = canShowRealTextField;\r
 573         }\r
 574     }\r
 575 \r
 576     private TextArea tf1 = null;\r
 577     private DemoTextField tf2 = null;\r
 578     private ScrollPane sp = null;\r
 579     private boolean showingRealTextField = true;\r
 580 }\r