<?php /* vim: set binary expandtab tabstop=4 shiftwidth=4 textwidth=80:
-------------------------------------------------------------------------------
			     Ministerio de Economía
				    meconlib
-------------------------------------------------------------------------------
This file is part of meconlib.

meconlib is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.

meconlib is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License; if not,
write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA  02111-1307  USA
-------------------------------------------------------------------------------
Creado: jue jul 17 15:36:26 ART 2003
Autor:  Leandro Lucarella <llucar@mecon.gov.ar>
-------------------------------------------------------------------------------
$Id$
-----------------------------------------------------------------------------*/

require_once 'HTML/QuickForm/Renderer.php';
require_once 'MECON/HTML/Tabla.php';

/**
 * QuickForm renderer que usa Tabla como backend.
 * Basado en el QuickForm Renderer basico.
 * 
 * @access public
 */
class MECON_HTML_QuickForm_Renderer_Tabla extends HTML_QuickForm_Renderer {

   /**
    * Tabla usada para dibujar el formulario.
    * @var      object Tabla
    * @access   private
    */
    var $_tabla;

   /**
    * HTML con los scripts para poner antes del formulario (tipicamente
    * un javascript).
    * @var      string
    * @access   private
    */
    var $_script = '';

   /**
    * HTML para agregar antes de la tabla (tipicamente un javascript).
    * @var      string
    * @access   private
    */
    var $_prepend = '';

   /**
    * HTML para agregar despues de la tabla.
    * @var      string
    * @access   private
    */
    var $_append = '';

   /**
    * True if we are inside a group 
    * @var      bool
    * @access   private
    */
    var $_inGroup = false;

   /**
    * Group error related message.
    * @var      string
    * @access   private
    */
    var $_groupError = '';

   /**
    * Array with HTML generated for group elements
    * @var      array
    * @access   private
    */
    var $_groupElements = array();

   /**
    * Constructor.
    *
    * @param  mixed $style Estilo de la tabla.
    *
    * @access public
    */
    function MECON_HTML_QuickForm_Renderer_Tabla($style = array())
    {
        $this->HTML_QuickForm_Renderer();
        $this->_tabla =& new Tabla($style);
    } // end constructor

   /**
    * returns the HTML generated for the form
    *
    * @access public
    * @return string
    */
    function toHtml()
    {
        return  $this->_script . $this->_prepend .
                $this->_tabla->toHtml() .
                $this->_append;
    } // end func toHtml
    
   /**
    * Called when visiting a form, before processing any form elements
    *
    * @param    object      An HTML_QuickForm object being visited
    * @access   public
    * @return   void
    */
    function startForm(&$form)
    {
        # FIXME - deberia sacarlo del QuickForm
        #$this->_prepend = $form->getFormStart();
        $attrs = $form->getAttributesString();
        $this->_prepend = "\n<FORM$attrs>\n";
    } // end func startForm

   /**
    * Called when visiting a form, after processing all form elements
    * Adds required note, form attributes, validation javascript and form content.
    * 
    * @param    object      An HTML_QuickForm object being visited
    * @access   public
    * @return   void
    */
    function finishForm(&$form)
    {
        // add a required note, if one is needed
        if (!empty($form->_required) && !$form->_freezeAll) {
            $id = $this->_tabla->addRow(
                array($form->getRequiredNote()),
                array('colspan' => 2, 'align' => 'center', 'cabecera' => true)
            );
            //$this->_tabla->updateCellAttributes($id, array('colspan' => 2));
        }
        // add form attributes and content
        //$this->_html = str_replace('{content}', $this->_html, $html);
        // add a validation script
        $this->_script = strval($form->getValidationScript());
        # FIXME - deberia sacarlo del QuickForm
        #$this->_append = $form->getFormEnd();
        $this->_append = "\n</FORM>\n";
    } // end func finishForm
      
   /**
    * Called when visiting a header element
    *
    * @param    object     An HTML_QuickForm_header element being visited
    * @access   public
    * @return   void
    */
    function renderHeader(&$header)
    {
        $name = $header->getName();
        $this->_tabla->addRow(
            array($header->toHtml()),
            array('colspan' => 2, $name => true, 'align' => 'center')
        );
    } // end func renderHeader

   /**
    * Renders an element Html
    * Called when visiting an element
    *
    * @param object     An HTML_QuickForm_element object being visited
    * @param bool       Whether an element is required
    * @param string     An error message associated with an element
    * @access public
    * @return void
    */
    function renderElement(&$element, $required, $error)
    {
        if (!$this->_inGroup) {
            $id = $this->_tabla->addRow(
                array(
                    $element->getLabel() . ($required ? '<FONT color="red">*</FONT>' : ''),
                    $element->toHtml() . ($error ? "<BR><FONT color=\"red\">$error</FONT>" : ''),
                )
            );
            $this->_tabla->updateCellAttributes($id, 0, array('titulo' => true, 'align' => 'left'));
            $this->_tabla->updateCellAttributes($id, 1, array('align' => 'left'));
        } else {
            $this->_groupElements[] = ($element->getLabel() ? ($element->getLabel().'&nbsp;') : '') . $element->toHtml();
        }
    } // end func renderElement
   
   /**
    * Renders an hidden element
    * Called when visiting a hidden element
    * 
    * @param object     An HTML_QuickForm_hidden object being visited
    * @access public
    * @return void
    */
    function renderHidden(&$element)
    {
        $this->_prepend .= "\n\t". $element->toHtml();
    } // end func renderHidden

   /**
    * Called when visiting a raw HTML/text pseudo-element
    * 
    * @param  object     An HTML_QuickForm_html element being visited
    * @access public
    * @return void
    */
    function renderHtml(&$data)
    {
        $this->_tabla->addRow(
            array($header->toHtml()),
            array('colspan' => 2)
        );
    } // end func renderHtml

   /**
    * Called when visiting a group, before processing any group elements
    *
    * @param object     An HTML_QuickForm_group object being visited
    * @param bool       Whether a group is required
    * @param string     An error message associated with a group
    * @access public
    * @return void
    */
    function startGroup(&$group, $required, $error)
    {
        $this->_groupElements = array();
        $this->_groupError    = $error;
        $this->_inGroup       = true;
    } // end func startGroup

   /**
    * Called when visiting a group, after processing all group elements
    *
    * @param    object      An HTML_QuickForm_group object being visited
    * @access   public
    * @return   void
    */
    function finishGroup(&$group)
    {
        $name = $group->getName();
        $sep = $group->_separator;
        if (strtolower($name) == 'botones') {
            $id = $this->_tabla->addRow(
                array(join('', $this->_groupElements))
            );
            $this->_tabla->updateCellAttributes($id, 0, array('valign' => 'middle', 'align' => 'center', 'colspan' => 2));
        } else {
            $id = $this->_tabla->addRow(
                array($group->getLabel(), join($sep, $this->_groupElements)),
                array('valign' => 'middle', 'align' => 'left')
            );
            $this->_tabla->updateCellAttributes($id, 0, array('titulo' => true, 'align' => 'left'));
        }
        $this->_inGroup = false;
    } // end func finishGroup

} // end class HTML_QuickForm_Renderer_Default

?>