jars/icu4j-4_2_1-src/src/com/ibm/icu/dev/demo/rbnf/RbnfDemo.java

   1 /*\r
   2  *******************************************************************************\r
   3  * Copyright (C) 1996-2007, 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.*;\r
  10 import java.awt.event.*;\r
  11 import java.text.DecimalFormat;\r
  12 import java.text.BreakIterator;\r
  13 import java.text.ParsePosition;\r
  14 import java.util.Locale;\r
  15 import com.ibm.icu.dev.demo.impl.*;\r
  16 import com.ibm.icu.text.RuleBasedNumberFormat;\r
  17 \r
  18 public class RbnfDemo extends DemoApplet {\r
  19     /**\r
  20      * For serialization\r
  21      */\r
  22     private static final long serialVersionUID = -9119861296873763536L;\r
  23 \r
  24     /**\r
  25      * Puts a copyright in the .class file\r
  26      */\r
  27 //    private static final String copyrightNotice\r
  28 //        = "Copyright \u00a91997-1998 IBM Corp.  All rights reserved.";\r
  29 \r
  30     /*\r
  31      * code to run the demo as an application\r
  32      */\r
  33     public static void main(String[] argv) {\r
  34         new RbnfDemo().showDemo();\r
  35     }\r
  36 \r
  37     protected Dimension getDefaultFrameSize(DemoApplet applet, Frame f) {\r
  38         return new Dimension(430,270);\r
  39     }\r
  40 \r
  41     protected Frame createDemoFrame(DemoApplet applet) {\r
  42         final Frame window = new Frame("Number Spellout Demo");\r
  43         window.setSize(800, 600);\r
  44         window.setLayout(new BorderLayout());\r
  45 \r
  46         Panel mainPanel = new Panel();\r
  47         mainPanel.setLayout(new GridLayout(1,2));\r
  48 \r
  49         commentaryField = new TextArea("", 0, 0, TextArea.SCROLLBARS_VERTICAL_ONLY);\r
  50         commentaryField.setSize(800, 50);\r
  51         commentaryField.setText(RbnfSampleRuleSets.sampleRuleSetCommentary[0]);\r
  52         commentaryField.setEditable(false);\r
  53         commentaryField.setFont(new Font("Helvetica", Font.PLAIN, 14));\r
  54 \r
  55         spelloutFormatter = new RuleBasedNumberFormat(RbnfSampleRuleSets.usEnglish, Locale.US);\r
  56         spelloutFormatter.setLenientParseMode(lenientParse);\r
  57         populateRuleSetMenu();\r
  58         numberFormatter = new DecimalFormat("#,##0.##########");\r
  59         parsePosition = new ParsePosition(0);\r
  60         theNumber = 0;\r
  61 \r
  62         numberField = new TextField();\r
  63         numberField.setFont(new Font("Serif", Font.PLAIN, 24));\r
  64         textField = new DemoTextFieldHolder();\r
  65         textField.setFont(new Font("Serif", Font.PLAIN, 24));\r
  66         rulesField = new DemoTextFieldHolder();\r
  67         rulesField.setFont(new Font("Serif", Font.PLAIN, 14));\r
  68         lenientParseButton = new Checkbox("Lenient parse", lenientParse);\r
  69 \r
  70         numberField.addTextListener(new TextListener() {\r
  71             public void textValueChanged(TextEvent e) {\r
  72                 if (!numberFieldHasFocus)\r
  73                     return;\r
  74 \r
  75                 String fieldText = ((TextComponent)(e.getSource())).getText();\r
  76                 parsePosition.setIndex(0);\r
  77                 Number temp = numberFormatter.parse(fieldText, parsePosition);\r
  78                 if (temp == null || parsePosition.getIndex() == 0) {\r
  79                     theNumber = 0;\r
  80                     textField.setText("PARSE ERROR");\r
  81                 }\r
  82                 else {\r
  83                     theNumber = temp.doubleValue();\r
  84                     textField.setText(spelloutFormatter.format(theNumber, ruleSetName));\r
  85                 }\r
  86             }\r
  87         } );\r
  88 \r
  89         numberField.addFocusListener(new FocusAdapter() {\r
  90             public void focusLost(FocusEvent e) {\r
  91                 numberFieldHasFocus = false;\r
  92                 numberField.setText(numberFormatter.format(theNumber));\r
  93             }\r
  94 \r
  95             public void focusGained(FocusEvent e) {\r
  96                 numberFieldHasFocus = true;\r
  97                 numberField.selectAll();\r
  98             }\r
  99         } );\r
 100 \r
 101         textField.addKeyListener(new KeyAdapter() {\r
 102             public void keyTyped(KeyEvent e) {\r
 103                 if (e.getKeyChar() == '\t') {\r
 104                     String fieldText = ((TextComponent)(e.getSource())).getText();\r
 105                     parsePosition.setIndex(0);\r
 106                     theNumber = spelloutFormatter.parse(fieldText, parsePosition)\r
 107                                         .doubleValue();\r
 108                     if (parsePosition.getIndex() == 0) {\r
 109                         theNumber = 0;\r
 110                         numberField.setText("PARSE ERROR");\r
 111                         textField.selectAll();\r
 112                     }\r
 113                     else if (parsePosition.getIndex() < fieldText.length()) {\r
 114                         textField.select(parsePosition.getIndex(), fieldText.length());\r
 115                         numberField.setText(numberFormatter.format(theNumber));\r
 116                     }\r
 117                     else {\r
 118                         textField.selectAll();\r
 119                         numberField.setText(numberFormatter.format(theNumber));\r
 120                     }\r
 121                     e.consume();\r
 122                 }\r
 123             }\r
 124         } );\r
 125 \r
 126         textField.addFocusListener(new FocusAdapter() {\r
 127             public void focusLost(FocusEvent e) {\r
 128                 String fieldText = ((TextComponent)(e.getSource())).getText();\r
 129                 parsePosition.setIndex(0);\r
 130                 theNumber = spelloutFormatter.parse(fieldText, parsePosition)\r
 131                                 .doubleValue();\r
 132                 if (parsePosition.getIndex() == 0)\r
 133                     numberField.setText("PARSE ERROR");\r
 134                 else\r
 135                     numberField.setText(numberFormatter.format(theNumber));\r
 136                 textField.setText(textField.getText()); // textField.repaint() didn't work right\r
 137             }\r
 138 \r
 139             public void focusGained(FocusEvent e) {\r
 140                 textField.selectAll();\r
 141             }\r
 142         } );\r
 143 \r
 144         rulesField.addKeyListener(new KeyAdapter() {\r
 145             public void keyTyped(KeyEvent e) {\r
 146                 if (e.getKeyChar() == '\t') {\r
 147                     String fieldText = ((TextComponent)(e.getSource())).getText();\r
 148                     if (formatterMenu.getSelectedItem().equals("Custom") || !fieldText.equals(\r
 149                                     RbnfSampleRuleSets.sampleRuleSets[formatterMenu.getSelectedIndex()])) {\r
 150                         try {\r
 151                             RuleBasedNumberFormat temp = new RuleBasedNumberFormat(fieldText);\r
 152                             temp.setLenientParseMode(lenientParse);\r
 153                             populateRuleSetMenu();\r
 154                             spelloutFormatter = temp;\r
 155                             customRuleSet = fieldText;\r
 156                             formatterMenu.select("Custom");\r
 157                             commentaryField.setText(RbnfSampleRuleSets.\r
 158                                 sampleRuleSetCommentary[RbnfSampleRuleSets.\r
 159                                 sampleRuleSetCommentary.length - 1]);\r
 160                             redisplay();\r
 161                         }\r
 162                         catch (Exception x) {\r
 163                             textField.setText(x.toString());\r
 164                         }\r
 165                     }\r
 166                     e.consume();\r
 167                 }\r
 168             }\r
 169         } );\r
 170 \r
 171         rulesField.addFocusListener(new FocusAdapter() {\r
 172             public void focusLost(FocusEvent e) {\r
 173                 String fieldText = ((TextComponent)(e.getSource())).getText();\r
 174                 if (formatterMenu.getSelectedItem().equals("Custom") || !fieldText.equals(\r
 175                                 RbnfSampleRuleSets.sampleRuleSets[formatterMenu.getSelectedIndex()])) {\r
 176                     try {\r
 177                         RuleBasedNumberFormat temp = new RuleBasedNumberFormat(fieldText);\r
 178                         temp.setLenientParseMode(lenientParse);\r
 179                         populateRuleSetMenu();\r
 180                         spelloutFormatter = temp;\r
 181                         customRuleSet = fieldText;\r
 182                         formatterMenu.select("Custom");\r
 183                         redisplay();\r
 184                     }\r
 185                     catch (Exception x) {\r
 186                         textField.setText(x.toString());\r
 187                     }\r
 188                 }\r
 189                 rulesField.setText(rulesField.getText()); // rulesField.repaint() didn't work right\r
 190             }\r
 191         } );\r
 192 \r
 193         lenientParseButton.addItemListener(new ItemListener() {\r
 194             public void itemStateChanged(ItemEvent e) {\r
 195                 lenientParse = lenientParseButton.getState();\r
 196                 spelloutFormatter.setLenientParseMode(lenientParse);\r
 197             }\r
 198         } );\r
 199 \r
 200         numberField.setText(numberFormatter.format(theNumber));\r
 201         numberField.selectAll();\r
 202         textField.setText(spelloutFormatter.format(theNumber, ruleSetName));\r
 203 \r
 204         Panel leftPanel = new Panel();\r
 205         leftPanel.setLayout(new BorderLayout());\r
 206         Panel panel = new Panel();\r
 207         panel.setLayout(new BorderLayout());\r
 208         Panel panel1 = new Panel();\r
 209         panel1.setLayout(new GridLayout(3, 1));\r
 210         panel1.add(new Panel());\r
 211         panel1.add(numberField, "Center");\r
 212         panel1.add(lenientParseButton);\r
 213         panel.add(panel1, "Center");\r
 214         Panel panel2 = new Panel();\r
 215         panel2.setLayout(new GridLayout(3, 3));\r
 216         Button button = new Button("+100");\r
 217         button.addActionListener( new ActionListener() {\r
 218             public void actionPerformed(ActionEvent e) {\r
 219                 roll(100);\r
 220             }\r
 221         } );\r
 222         panel2.add(button);\r
 223         button = new Button("+10");\r
 224         button.addActionListener( new ActionListener() {\r
 225             public void actionPerformed(ActionEvent e) {\r
 226                 roll(10);\r
 227             }\r
 228         } );\r
 229         panel2.add(button);\r
 230         button = new Button("+1");\r
 231         button.addActionListener( new ActionListener() {\r
 232             public void actionPerformed(ActionEvent e) {\r
 233                 roll(1);\r
 234             }\r
 235         } );\r
 236         panel2.add(button);\r
 237         button = new Button("<");\r
 238         button.addActionListener( new ActionListener() {\r
 239             public void actionPerformed(ActionEvent e) {\r
 240                 theNumber *= 10;\r
 241                 redisplay();\r
 242             }\r
 243         } );\r
 244         panel2.add(button);\r
 245         panel2.add(new Panel());\r
 246         button = new Button(">");\r
 247         button.addActionListener( new ActionListener() {\r
 248             public void actionPerformed(ActionEvent e) {\r
 249                 theNumber /= 10;\r
 250                 redisplay();\r
 251             }\r
 252         } );\r
 253         panel2.add(button);\r
 254         button = new Button("-100");\r
 255         button.addActionListener( new ActionListener() {\r
 256             public void actionPerformed(ActionEvent e) {\r
 257                 roll(-100);\r
 258             }\r
 259         } );\r
 260         panel2.add(button);\r
 261         button = new Button("-10");\r
 262         button.addActionListener( new ActionListener() {\r
 263             public void actionPerformed(ActionEvent e) {\r
 264                 roll(-10);\r
 265             }\r
 266         } );\r
 267         panel2.add(button);\r
 268         button = new Button("-1");\r
 269         button.addActionListener( new ActionListener() {\r
 270             public void actionPerformed(ActionEvent e) {\r
 271                 roll(-1);\r
 272             }\r
 273         } );\r
 274         panel2.add(button);\r
 275         panel.add(panel2, "East");\r
 276         leftPanel.add(panel, "North");\r
 277         leftPanel.add(textField, "Center");\r
 278 \r
 279         Panel rightPanel = new Panel();\r
 280         rightPanel.setLayout(new BorderLayout());\r
 281         formatterMenu = new Choice();\r
 282         for (int i = 0; i < RbnfSampleRuleSets.sampleRuleSetNames.length; i++)\r
 283             formatterMenu.addItem(RbnfSampleRuleSets.sampleRuleSetNames[i]);\r
 284         formatterMenu.addItem("Custom");\r
 285         formatterMenu.addItemListener(new ItemListener() {\r
 286             public void itemStateChanged(ItemEvent e) {\r
 287                 Choice source = (Choice)(e.getSource());\r
 288                 int item = source.getSelectedIndex();\r
 289                 Locale locale = RbnfSampleRuleSets.sampleRuleSetLocales[item];\r
 290 \r
 291                 commentaryField.setText(RbnfSampleRuleSets.\r
 292                                 sampleRuleSetCommentary[item]);\r
 293 \r
 294                 if (locale != null && (locale.getLanguage().equals("iw")\r
 295                         || locale.getLanguage().equals("ru") || locale.getLanguage().equals("ja")\r
 296                         || locale.getLanguage().equals("el")\r
 297                         || locale.getLanguage().equals("zh"))) {\r
 298                     textField.togglePanes(false);\r
 299                     rulesField.togglePanes(false);\r
 300                 }\r
 301                 else {\r
 302                     textField.togglePanes(true);\r
 303                     rulesField.togglePanes(true);\r
 304                 }\r
 305 \r
 306                 makeNewSpelloutFormatter();\r
 307                 redisplay();\r
 308             }\r
 309         } );\r
 310 \r
 311         ruleSetMenu = new Choice();\r
 312         populateRuleSetMenu();\r
 313 \r
 314         ruleSetMenu.addItemListener(new ItemListener() {\r
 315             public void itemStateChanged(ItemEvent e) {\r
 316                 ruleSetName = ruleSetMenu.getSelectedItem();\r
 317                 redisplay();\r
 318             }\r
 319         } );\r
 320 \r
 321         Panel menuPanel = new Panel();\r
 322         menuPanel.setLayout(new GridLayout(1, 2));\r
 323         menuPanel.add(formatterMenu);\r
 324         menuPanel.add(ruleSetMenu);\r
 325         rightPanel.add(menuPanel, "North");\r
 326 \r
 327         rulesField.setText(RbnfSampleRuleSets.sampleRuleSets[formatterMenu.getSelectedIndex()]);\r
 328         rightPanel.add(rulesField, "Center");\r
 329 \r
 330         mainPanel.add(leftPanel);\r
 331         mainPanel.add(rightPanel);\r
 332 \r
 333         window.add(mainPanel, "Center");\r
 334         window.add(commentaryField, "South");\r
 335 \r
 336         window.doLayout();\r
 337         window.show();\r
 338         final DemoApplet theApplet = applet;\r
 339         window.addWindowListener(\r
 340                 new WindowAdapter() {\r
 341                     public void windowClosing(WindowEvent e) {\r
 342                         setVisible(false);\r
 343                         window.dispose();\r
 344 \r
 345                         if (theApplet != null) {\r
 346                             theApplet.demoClosed();\r
 347                         } else System.exit(0);\r
 348                     }\r
 349                 } );\r
 350         return window;\r
 351     }\r
 352 \r
 353     void roll(int delta) {\r
 354         theNumber += delta;\r
 355         redisplay();\r
 356     }\r
 357 \r
 358     void redisplay() {\r
 359         numberField.setText(numberFormatter.format(theNumber));\r
 360         textField.setText(spelloutFormatter.format(theNumber, ruleSetName));\r
 361     }\r
 362 \r
 363     void makeNewSpelloutFormatter() {\r
 364         int item = formatterMenu.getSelectedIndex();\r
 365         String formatterMenuItem = formatterMenu.getSelectedItem();\r
 366 \r
 367         if (formatterMenuItem.equals("Custom")) {\r
 368             rulesField.setText(customRuleSet);\r
 369             spelloutFormatter = new RuleBasedNumberFormat(customRuleSet);\r
 370         }\r
 371         else {\r
 372             rulesField.setText(RbnfSampleRuleSets.sampleRuleSets[item]);\r
 373 \r
 374             Locale locale = RbnfSampleRuleSets.sampleRuleSetLocales[item];\r
 375             if (locale == null)\r
 376                 locale = Locale.getDefault();\r
 377 \r
 378             spelloutFormatter = new RuleBasedNumberFormat(RbnfSampleRuleSets.\r
 379                             sampleRuleSets[item], locale);\r
 380         }\r
 381         spelloutFormatter.setLenientParseMode(lenientParse);\r
 382         populateRuleSetMenu();\r
 383     }\r
 384 \r
 385     void populateRuleSetMenu() {\r
 386         String[] ruleSetNames = spelloutFormatter.getRuleSetNames();\r
 387 \r
 388         if (ruleSetMenu != null) {\r
 389             ruleSetMenu.removeAll();\r
 390             for (int i = 0; i < ruleSetNames.length; i++)\r
 391                 ruleSetMenu.addItem(ruleSetNames[i]);\r
 392 \r
 393             ruleSetName = ruleSetMenu.getSelectedItem();\r
 394         }\r
 395         else\r
 396             ruleSetName = ruleSetNames[0];\r
 397     }\r
 398 \r
 399 //    private Frame demoWindow = null;\r
 400 \r
 401     private TextComponent numberField;\r
 402     private DemoTextFieldHolder textField;\r
 403     private DemoTextFieldHolder rulesField;\r
 404     private TextComponent commentaryField;\r
 405     private Checkbox lenientParseButton;\r
 406 \r
 407     private boolean numberFieldHasFocus = true;\r
 408 \r
 409     private RuleBasedNumberFormat spelloutFormatter;\r
 410     private DecimalFormat numberFormatter;\r
 411     private ParsePosition parsePosition;\r
 412 \r
 413     private boolean lenientParse = true;\r
 414 \r
 415     private double theNumber = 0;\r
 416 //    private boolean canEdit = true;\r
 417 \r
 418     private Choice formatterMenu;\r
 419     private Choice ruleSetMenu;\r
 420     private String ruleSetName;\r
 421 \r
 422     private String customRuleSet = "NO RULES!";\r
 423 }\r
 424 \r
 425 class DemoTextField extends Component {\r
 426     /**\r
 427      * For serialization\r
 428      */\r
 429     private static final long serialVersionUID = -7947090021239472658L;\r
 430     public DemoTextField() {\r
 431     }\r
 432 \r
 433     public void setText(String text) {\r
 434         this.text = text;\r
 435         this.repaint();\r
 436     }\r
 437 \r
 438     public String getText() {\r
 439         return text;\r
 440     }\r
 441 \r
 442     public void paint(Graphics g) {\r
 443         Font font = getFont();\r
 444         FontMetrics fm = g.getFontMetrics();\r
 445         g.setFont(font);\r
 446         String txt = getText();\r
 447         BreakIterator bi = BreakIterator.getLineInstance();\r
 448         bi.setText(txt);\r
 449         int lineHeight = fm.getHeight();\r
 450         int width = getSize().width;\r
 451         int penY = fm.getAscent();\r
 452         int lineStart = 0;\r
 453         int tempLineEnd = bi.first();\r
 454         int lineEnd = 0;\r
 455         int maxLineEnd = 0;\r
 456         totalHeight = 0;\r
 457 \r
 458         while (lineStart < txt.length()) {\r
 459             maxLineEnd = txt.indexOf('\n', lineStart);\r
 460             if (maxLineEnd == -1)\r
 461                 maxLineEnd = Integer.MAX_VALUE;\r
 462             while (tempLineEnd != BreakIterator.DONE && fm.stringWidth(txt.substring(\r
 463                             lineStart, tempLineEnd)) < width) {\r
 464                 lineEnd = tempLineEnd;\r
 465                 tempLineEnd = bi.next();\r
 466             }\r
 467             if (lineStart >= lineEnd) {\r
 468                 if (tempLineEnd == BreakIterator.DONE)\r
 469                     lineEnd = txt.length();\r
 470                 else\r
 471                     lineEnd = tempLineEnd;\r
 472             }\r
 473             if (lineEnd > maxLineEnd)\r
 474                 lineEnd = maxLineEnd;\r
 475             g.drawString(txt.substring(lineStart, lineEnd), 0, penY);\r
 476             penY += lineHeight;\r
 477             totalHeight += lineHeight;\r
 478             lineStart = lineEnd;\r
 479             if (lineStart < txt.length() && txt.charAt(lineStart) == '\n')\r
 480                 ++lineStart;\r
 481         }\r
 482     }\r
 483 \r
 484 /*\r
 485     public Dimension getPreferredSize() {\r
 486         Dimension size = getParent().getSize();\r
 487         return new Dimension(size.width, totalHeight);\r
 488     }\r
 489 */\r
 490 \r
 491     private String text;\r
 492     private int totalHeight;\r
 493 }\r
 494 \r
 495 class DemoTextFieldHolder extends Panel {\r
 496     /**\r
 497      * For serialization\r
 498      */\r
 499     private static final long serialVersionUID = 7514498764062569858L;\r
 500     public DemoTextFieldHolder() {\r
 501         tf1 = new TextArea("", 0, 0, TextArea.SCROLLBARS_VERTICAL_ONLY);\r
 502         tf2 = new DemoTextField();\r
 503         sp = new ScrollPane();\r
 504 \r
 505         setLayout(new CardLayout());\r
 506 \r
 507         sp.add(tf2, "TextField1");\r
 508         sp.setVisible(false);\r
 509         add(tf1, "TestField2");\r
 510         add(sp, "ScrollPane");\r
 511     }\r
 512 \r
 513     public void addFocusListener(FocusListener l) {\r
 514         tf1.addFocusListener(l);\r
 515     }\r
 516 \r
 517     public void addKeyListener(KeyListener l) {\r
 518         tf1.addKeyListener(l);\r
 519     }\r
 520 \r
 521     public void setText(String text) {\r
 522         tf1.setText(text);\r
 523         tf2.setText(text);\r
 524     }\r
 525 \r
 526     public String getText() {\r
 527         return tf1.getText();\r
 528     }\r
 529 \r
 530     public void select(int start, int end) {\r
 531         tf1.select(start, end);\r
 532     }\r
 533 \r
 534     public void selectAll() {\r
 535         tf1.selectAll();\r
 536     }\r
 537 \r
 538     public void togglePanes(boolean canShowRealTextField) {\r
 539         if (canShowRealTextField != showingRealTextField) {\r
 540             CardLayout layout = (CardLayout)(getLayout());\r
 541             layout.next(this);\r
 542             showingRealTextField = canShowRealTextField;\r
 543         }\r
 544     }\r
 545 \r
 546     private TextArea tf1 = null;\r
 547     private DemoTextField tf2 = null;\r
 548     private ScrollPane sp = null;\r
 549     private boolean showingRealTextField = true;\r
 550 }\r