From 4835704a04cf5aa5ec71a8aef902d54b9c6cae82 Mon Sep 17 00:00:00 2001
From: wei <>
Date: Fri, 6 Jan 2006 04:42:44 +0000
Subject: Adding I18N support.

---
 framework/I18N/Translation.php | 144 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 framework/I18N/Translation.php

(limited to 'framework/I18N/Translation.php')

diff --git a/framework/I18N/Translation.php b/framework/I18N/Translation.php
new file mode 100644
index 00000000..8b420bbf
--- /dev/null
+++ b/framework/I18N/Translation.php
@@ -0,0 +1,144 @@
+<?php
+
+/**
+ * Translation, static.
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the BSD License.
+ *
+ * Copyright(c) 2004 by Xiang Wei Zhuo. 
+ *
+ * To contact the author write to {@link mailto:qiang.xue@gmail.com Qiang Xue}
+ * The latest version of PRADO can be obtained from:
+ * {@link http://prado.sourceforge.net/}
+ *
+ * @author Xiang Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Revision: 1.9 $  $Date: 2005/12/17 06:11:28 $
+ * @package System.I18N
+ */
+
+ /**
+ * Get the MessageFormat class.
+ */
+Prado::using('System.I18N.core.MessageFormat');
+ 
+
+/**
+ * Translation class.
+ * 
+ * Provides translation using a static MessageFormatter.
+ *
+ * @author Xiang Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version v1.0, last update on Tue Dec 28 11:54:48 EST 2004
+ * @package System.I18N
+ */
+class Translation extends TComponent
+{
+	
+
+	/**
+	 * The string formatter. This is a class static variable.
+	 * @var MessageFormat 
+	 */	
+	protected static $formatter;
+	
+	/**
+	 * Initialize the TTranslate translation components
+	 */
+	public static function init()
+	{	
+		//initialized the default class wide formatter
+		if(is_null(self::$formatter))
+		{
+			$app = Prado::getApplication()->getGlobalization();
+			$config = $app->getTranslationConfiguration();
+			$source = MessageSource::factory($config['type'],
+											$config['source'],
+											$config['filename']);
+											
+			$source->setCulture($app->Culture);
+			
+			if($config['cache'])
+				$source->setCache(new MessageCache($config['cache']));
+			
+			self::$formatter = new MessageFormat($source, $app->Charset);
+
+			//save the message on end request
+			Prado::getApplication()->attachEventHandler(
+				'EndRequest', array('Translation', 'saveMessages'));
+		}			
+	}
+	
+	/**
+	 * Get the static formatter from this component.
+	 * @return MessageFormat formattter.	 
+	 * @see localize()
+	 */
+	public static function formatter()
+	{
+		return self::$formatter;
+	}
+	
+	/**
+	 * Save untranslated messages to the catalogue.
+	 */
+	public static function saveMessages()
+	{
+		static $onceonly = true;
+		
+		if($onceonly && !is_null($formatter = self::$formatter))
+		{
+			$app = Prado::getApplication()->getGlobalization();
+			$config = $app->getTranslationConfiguration();
+			if(isset($config['autosave']))
+			{								
+				$formatter->getSource()->setCulture($app->Culture);
+				$formatter->getSource()->save($config['catalogue']);
+			}
+			$onceonly = false;
+		}		
+	}	
+}
+
+/**
+ * Localize a text to the locale/culture specified in the globalization handler.
+ * @param string text to be localized.
+ * @param array a set of parameters to substitute.
+ * @param string a different catalogue to find the localize text.
+ * @param string the input AND output charset.
+ * @return string localized text. 
+ * @see TTranslate::formatter()
+ * @see TTranslate::init()
+ */
+function localize($text, $parameters=array(), $catalogue=null, $charset=null)
+{
+	
+	$app = Prado::getApplication()->getGlobalization();
+	
+	$params = array();
+	foreach($parameters as $key => $value)
+		$params['{'.$key.'}'] = $value;
+
+	//no translation handler provided
+	if(is_null($config = $app->getTranslationConfiguration()))
+		return strtr($text, $params);
+
+	Translation::init();
+
+	if(empty($catalogue) && isset($config['catalogue']))
+		$catalogue = $config['catalogue'];
+		
+	//globalization charset
+	$appCharset = is_null($app) ? '' : $app->Charset; 
+		
+	//default charset
+	$defaultCharset = (is_null($app)) ? 'UTF-8' : $app->getDefaultCharset();
+				
+	//fall back
+	if(empty($charset)) $charset = $appCharset; 	
+	if(empty($charset)) $charset = $defaultCharset;
+				
+	return Translation::formatter()->format($text,$params,$catalogue,$charset);
+}
+
+?>
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