defaultinputmethodhandler_ja.java

有关j2me的很好的例子可以研究一下

/*
 * @(#)DefaultInputMethodHandler_ja.java	1.13  01/08/21
 *
 * Copyright (c) 2000-2001 Sun Microsystems, Inc., 901 San Antonio Road,
 * Palo Alto, CA 94303, U.S.A.  All Rights Reserved.
 *
 * Sun Microsystems, Inc. has intellectual property rights relating
 * to the technology embodied in this software.  In particular, and
 * without limitation, these intellectual property rights may include
 * one or more U.S. patents, foreign patents, or pending
 * applications.  Sun, Sun Microsystems, the Sun logo, Java, KJava,
 * and all Sun-based and Java-based marks are trademarks or
 * registered trademarks of Sun Microsystems, Inc.  in the United
 * States and other countries.
 *
 * This software is distributed under licenses restricting its use,
 * copying, distribution, and decompilation.  No part of this
 * software may be reproduced in any form by any means without prior
 * written authorization of Sun and its licensors, if any.
 *
 * FEDERAL ACQUISITIONS:  Commercial Software -- Government Users
 * Subject to Standard License Terms and Conditions
 */
package com.sun.midp.lcdui.i18n;

import com.sun.midp.lcdui.DefaultInputMethodHandler;
import com.sun.midp.lcdui.InputMethodClient;

/**
 * The Japanese implementation of the of the InputMethodHandler interface.
 * @author unattributed
 * @version 1.13 08/21/01
 */
public class DefaultInputMethodHandler_ja extends DefaultInputMethodHandler {

    /** Kanji Input Method. */
    protected static final int IM_KANJI         = IM_SYMBOL + 1;

    /** Kana Input Method. */
    protected static final int IM_KANA          = IM_SYMBOL + 2;

    /** The Kana character set symbol table. */
    protected char kanaKeyMap[][] = {
        /*   wa        wo        wn */ 
        {'\uff9c', '\uff66', '\uff9d',
         /* DAKU       PU      KUTEN */
         '\uff9e', '\uff9f', '\uff61',
         /* SEP       LBRA      RBRA     TOUTEN */
         '\uff65', '\uff62', '\uff63', '\uff64'},
        /*    A       I       U       E       O  */
        {'\uff71', '\uff72', '\uff73', '\uff74', '\uff75',
         /*    a       i       u       e       o  */
         '\uff67', '\uff68', '\uff69', '\uff6a', '\uff6b'},
        /*   KA      KI      KU      KE      KO */
        {'\uff76', '\uff77', '\uff78', '\uff79', '\uff7a'},
        /*   SA      SI      SU      SE      SO */
        {'\uff7b', '\uff7c', '\uff7d', '\uff7e', '\uff7f'},
        /*   TA      TI      TU      TE      TO      tu */
        {'\uff80', '\uff81', '\uff82', '\uff83', '\uff84', '\uff6f'},
        /*   NA      NI      NU      NE      NO */
        {'\uff85', '\uff86', '\uff87', '\uff88', '\uff89'},
        /*   HA      HI      HU      HE      HO */
        {'\uff8a', '\uff8b', '\uff8c', '\uff8d', '\uff8e'},
        /*   MA      MI      MU      ME      MO */
        {'\uff8f', '\uff90', '\uff91', '\uff92', '\uff93'},
        /*   YA      YU      YO      ya      yu      yo */
        {'\uff94', '\uff95', '\uff96', '\uff6c', '\uff6d', '\uff6e'},
        /*   RA      RI      RU      RE      RO */
        {'\uff97', '\uff98', '\uff99', '\uff9a', '\uff9b'},
        /* null */
        {'\0'},
        /* SPACE */
	{' '}
    };

    /** The Kanji character set symbol table. */
    protected char kanjiKeyMap[][] = {
	/*   WA      WO      WN  */
        {'\u308f', '\u3092', '\u3093',
        /*   SP  TOUTEN   KUTEN   QUEST  EXCLAM */
         '\u3000', '\u3001', '\u3002', '\uff1f', '\uff01',
        /*  SEP   COLON  SEMICOL QUOTEDBL   YEN */
         '\u30fb', '\uff1a', '\uff1b', '\u201d', '\uffe5',
        /* AMPERSAND ASTERISK */
         '\uff06', '\uff0a'},
        /*    A       I       U       E       O  */
        {'\u3042', '\u3044', '\u3046', '\u3048', '\u304a',
         /*   a       i       u       e       o */
         '\u3041', '\u3043', '\u3045', '\u3047', '\u3049'},
        /*   KA      KI      KU      KE      KO */
        {'\u304b', '\u304d', '\u304f', '\u3051', '\u3053',
         /*   GA      GI      GU      GE      GO */
         '\u304c', '\u304e', '\u3050', '\u3052', '\u3054'},
        /*   SA      SI      SU      SE      SO */
        {'\u3055', '\u3057', '\u3059', '\u305b', '\u305d',
         /*   ZA      ZI      ZU      ZE      ZO */
         '\u3056', '\u3058', '\u305a', '\u305c', '\u305e'},
        /*   TA      TI      TU      TE      TO      tu */
        {'\u305f', '\u3061', '\u3064', '\u3066', '\u3068', '\u3063',
         /*   DA      DI      DU      DE      DO */
         '\u3060', '\u3062', '\u3065', '\u3067', '\u3069'},
        /*   NA      NI      NU      NE      NO */
        {'\u306a', '\u306b', '\u306c', '\u306d', '\u306e'},
        /*   HA      HI      HU      HE      HO */
        {'\u306f', '\u3072', '\u3075', '\u3078', '\u307b',
         /*   BA      BI      BU      BE      BO */
         '\u3070', '\u3073', '\u3076', '\u3079', '\u307c',
         /*   PA      PI      PU      PE      PO */
         '\u3071', '\u3074', '\u3077', '\u307a', '\u307d'},
        /*   MA      MI      ME      ME      MO */
        {'\u307e', '\u307f', '\u3080', '\u3081', '\u3082'},
        /*   YA      YU      YO      ya      yu      yo */
        {'\u3084', '\u3086', '\u3088', '\u3083', '\u3085', '\u3087'},
        /*   RA      RI      RU      RE      RO */
        {'\u3089', '\u308a', '\u308b', '\u308c', '\u308d'},
        /* null */
        {'\0'},
        /* SPACE */
	{'\u3000'}
    };

    // Japanese specific symbol table characters
    // protected char jaSymbolTableChars[] = {
    //     '|',  '\uff62', '\uff63', '\uff64',  '{',  '}', 
    // 
    //     '_',	'$',	'(',	')',	'\\', '\uff65', 
    // 
    //     '~',	'"',	'\'',	'/',	'&',  '\uff61',
    // 
    //     '*',	'@',	'.',	'?',	'!',  '`', 
    // 
    //     '#',	'-',	',',	':',	';',  '^', 
    // 
    //     '%',	'=',	'+',	'<',	'>'};

    /** The set of available Japanese input modes. */
    protected String jaInputModes[] = {
        "KANJI",
        "HALFWIDTH_KATAKANA",
        "LATIN",
        "LATIN_DIGITS",
    };

    /** The Japanese input mode conversion table. */
    protected Object jaInputModeConvTable[][] = {
        {"KANJI",              new Integer(IM_KANJI)},
        {"HALFWIDTH_KATAKANA", new Integer(IM_KANA)},
        {"LATIN",              new Integer(IM_ROMAN_CAPS)},
        {"LATIN",              new Integer(IM_ROMAN_SMALL)},
        {"LATIN_DIGITS",       new Integer(IM_NUMERIC)},
        {"LATIN",              new Integer(IM_SYMBOL)},
    };

    /**
     * Constructs a new DefaultInputMethodHandler_ja object
     * to handle japanese input modes.
     */
    public DefaultInputMethodHandler_ja() {
        allowedModes = new int[7];
        super.supportedInputModes = jaInputModes;
        super.inputModeConvTable = jaInputModeConvTable;
        // Japanese specific symbol table
        // super.symbolTableChars = jaSymbolTableChars;
        // super.defaultSymbolCursorPos = 20;
    }

    /**
     * Set the input method client.
     * @param imc The Input method to use.
     */
    public void setInputMethodClient(InputMethodClient imc) {
        super.setInputMethodClient(imc);

        switch (inputMode) {
	case IM_KANA:
	    keyMap = kanaKeyMap;
            break;
	case IM_KANJI:
	    keyMap = kanjiKeyMap;
            break;
        }
    }

    /**
     * Set the input mode.
     * @param mode The mode to use
     * @return true if the mode could be set
     */
    protected boolean setInputMode(int mode) {
        if (super.setInputMode(mode)) {
            return true;
        }

	switch (mode) {
	case IM_KANA:
	    keyMap = kanaKeyMap;
            break;
	case IM_KANJI:
	    keyMap = kanjiKeyMap;
            break;
        default:
            return false;
	}

        imc.setInputMode(inputMode = mode);

        return true;
    }
}