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<?php
/**
* TTranslate, I18N translation component.
*
* 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: 1.11 $ $Date: 2005/10/09 10:24:12 $
* @package System.I18N
*/
/**
* TTranslate class.
*
* This component performs message/string translation. The translation
* source is set in the TGlobalization handler. The following example
* demonstrated a simple message translation.
* <code>
* <com:TTranslate Text="Goodbye" />
* </code>
*
* Depending on the culture set on the page, the phrase "Goodbye" will
* be translated.
*
* The values of any attribute in TTranslate are consider as values for
* substitution. Strings enclosed with "{" and "}" are consider as the
* parameters. The following example will substitution the string
* "{time}" with the value of the attribute "time="#time()". Note that
* the value of the attribute time is evaluated.
* <code>
* <com:TTranslate time="#time()">
* The unix-time is "{time}".
* </com:TTranslate>
* </code>
*
* More complex string substitution can be applied using the
* TParam component.
*
* Namespace: System.I18N
*
* Properties
* - <b>Text</b>, string,
* <br>Gets or sets the string to translate.
* - <b>Catalogue</b>, string,
* <br>Gets or sets the catalogue for message translation. The
* default catalogue can be set by the @Page directive.
* - <b>Key</b>, string,
* <br>Gets or sets the key used to message look up.
* - <b>Trim</b>, boolean,
* <br>Gets or sets an option to trim the contents.
* Default is to trim the contents.
*
* @author Xiang Wei Zhuo <weizhuo[at]gmail[dot]com>
* @version v1.0, last update on Fri Dec 24 21:38:49 EST 2004
* @package System.I18N
*/
class TTranslate extends TI18NControl
{
/**
* @return string the text to be localized/translated.
*/
function getText()
{
return $this->getViewState('Text','');
}
/**
* Sets the text for localization.
* @param string the text for translation.
*/
function setText($value)
{
$this->setViewState('Text',$value,'');
}
/**
* Set the key for message lookup.
* @param string key
*/
function setKey($value)
{
$this->setViewState('Key',$value,'');
}
/**
* Get the key for message lookup.
* @return string key
*/
function getKey()
{
return $this->getViewState('Key','');
}
/**
* Get the message catalogue.
* @return string catalogue.
*/
function getCatalogue()
{
return $this->getViewState('Catalogue','');
}
/**
* Set the message catalogue.
* @param string catalogue.
*/
function setCatalogue($value)
{
$this->setViewState('Catalogue',$value,'');
}
/**
* Set the option to trim the contents.
* @param boolean trim or not.
*/
function setTrim($value)
{
$this->setViewState('Trim',TPropertyValue::ensureBoolean($value),true);
}
/**
* Trim the content or not.
* @return boolean trim or not.
*/
function getTrim()
{
return $this->getViewState('Trim',true);
}
/**
* renders the translated string.
*/
protected function render($writer)
{
$textWriter=new TTextWriter;
$htmlWriter=new THtmlWriter($textWriter);
$subs = array();
foreach($this->getControls() as $control)
{
if($control instanceof TTranslateParameter)
$subs['{'.$control->getKey().'}'] = $control->getParameter();
elseif($control instanceof TControl)
$control->render($htmlWriter);
elseif(is_string($control))
$textWriter->write($control);
}
$text = $this->getText();
if(strlen($text)==0)
$text = $textWriter->flush();
if($this->getTrim())
$text = trim($text);
$writer->write($this->translateText($text, $subs));
}
/**
* Translates the text with subsititution.
* @param string text for translation
* @param array list of substitutions
* @return string translated text
*/
protected function translateText($text, $subs)
{
$app = $this->Application->getGlobalization();
//no translation handler provided
if(is_null($config = $app->getTranslationConfiguration()))
return strtr($text, $subs);
Translation::init();
$catalogue = $this->getCatalogue();
if(empty($catalogue) && isset($config['catalogue']))
$catalogue = $config['catalogue'];
$key = $this->getKey();
if(!empty($key)) $text = $key;
//translate it
return Translation::formatter()->format($text,
$subs, $catalogue, $this->getCharset());
}
}
?>
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