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| <?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* GtkEntry with mask validation
*
* @category Gtk2
* @package Gtk2_EntryMask
* @author Pablo Dall'Oglio <pablo@php.net>
* @author Leonardo Castilhos Thibes <leonardothibes@yahoo.com.br>
* @license LGPL
* @version $Id: EntryMask.class.php,v 1.0 2007/01/30 11:37:43 leonardo Exp $
*/
class EntryMask {
/**
* Characters used to format mask
* @var array
*/
private $chars;
/**
* The Mask applied to the GtkEntry
* @var string
*/
private $mask;
/**
* The GtkEntry object
* @var $object
*/
private $object;
/**
* The Signal handler that is fired when the user types something
* @var integer
*/
private $handler;
/**
* constructor.
*/
public function __construct() {}
/**
* Setando máscara.
*
* @param string $mask the allowed mask
* @param object $object GtkEntry Object
*/
public function setMask($object, $mask) {
/** Obtebdo objeto GtkEntry **/
$this->obj = $object;
/** Obtendo máscara **/
$this->mask = $mask;
/** Setando tamanho máximo do campo **/
$this->obj->set_max_length(strlen(trim($mask)));
/** Array de separadores **/
$this->chars = array('-', '_', '.', ',', '/', '\\', ':', '|', '(', ')', '[', ']', '{', '}');
/** Conectando o sinal "changed" ao metodo onChange **/
$this->handler = $this->obj->connect('changed', array($this, 'onChange'));
}
/**
* whenever the user types something the content is validated according to
* the mask.
*/
public function onChange() {
/** Setando o texto **/
$text = $this->obj->get_text();
/** Removendo separadores **/
$text = $this->unMask($text);
/** Obtendo o tamanho do texto **/
$len = strlen(trim($text));
/** Aplicando a máscara **/
$new = $this->Mask($this->mask, $text);
/** Agendando novo conteúdo **/
Gtk::timeout_add(1, array($this, 'Set'), $new);
Gtk::timeout_add(1, array($this, 'Validate'));
}
/**
* changes the Entry contents without fire "changed" signal
* @param string $text the new text
*/
public function Set($text) {
/** Desconectando o sinal "changed" do metodo "onChange" **/
$this->obj->disconnect($this->handler);
/** Setando o texto do entry **/
$this->obj->set_text($text);
/** Posicionando o cursor no final do texto **/
$this->obj->select_region(-1,-1);
/** Conectando novamente o sinal "changed" no metodo "onChange" **/
$this->handler = $this->obj->connect_after('changed', array($this, 'onChange'));
}
/**
* Validate the content of GtkEntry
*/
public function Validate() {
/** Obtendo texto do objeto **/
$text = $this->obj->get_text();
/** Obtendo máscara **/
$mask = $this->mask;
/** Obtendo tamanho do texto **/
$len = strlen($text);
$text_char = substr($text, $len-1, 1);
$mask_char = substr($mask, $len-1, 1);
/** Comparando os caracteres digitados com a máscara **/
if ($mask_char == '9')
$valid = ereg('([0-9])', $text_char);
elseif ($mask_char == 'a')
$valid = ereg('([a-z])', $text_char);
elseif ($mask_char == 'A')
$valid = ereg('([A-Z])', $text_char);
elseif ($mask_char == 'X')
$valid = (ereg('([a-z])', $text_char) or
ereg('([A-Z])', $text_char) or
ereg('([0-9])', $text_char));
/** Comparando os caracteres digitados com a máscara **/
/** Caracteres que não se aplicam no escopo da máscara são removidos **/
if (!$valid) {
$this->Set(substr($text, 0, -1));
}
}
/**
* put the typed content in the mask format
* @param string $mask the mask
* @param string $text the content
*/
public function Mask($mask, $text) {
/** Run through the mask chars **/
$z = 0;
for ($n=0; $n < strlen($mask); $n++) {
$mask_char = substr($mask, $n, 1);
$text_char = substr($text, $z, 1);
/** Check when has to concatenate with the separator **/
if(in_array($mask_char, $this->chars)) {
if($z < strlen($text)) {
$result .= $mask_char;
}
} else {
$result .= $text_char;
$z++;
}
}
return $result;
}
/**
* removes the mask from text
* @param string $text the content
*/
public function unMask($text) {
/** Run through the content **/
for ($n=0; $n <= strlen($text); $n++) {
$char = substr($text, $n, 1);
/** Check if it's a separator **/
if (!in_array($char, $this->chars)) {
$result .= $char;
}
}
return $result;
}
}
?> |
gestion des entrées !
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