<?php
/**
 * _Html_Table is a html helper class that takes data in order to generate a html table
 * @copyright	Copyright (c) 2012, PWF
 * @license		http://phpwebframework.com/License 
 * @version PWF_0.3.0
 */
class _Html_Table implements _Html_Interface
{
	private $columns; 
	private $tableClass;
	private $htmlAttributes; 
  private $cells = array(); 
  private $cellsClasses = array();
  private $cellsStyles = array();
  private $cellsAtrributes = array(); 
  private $collumnsClasses = array();   
  private $index = 0; 
  
  
  /**
   * Constructs a table object 
   * @param $columns The number of the columns of the table (if not given then 1) 
   * @param $tableClass The name of the css class of the table if given 
   */
  public function __construct($columns = 1,$tableClass = null)
  {
    $this->columns = $columns;
    if(!is_null($tableClass))
    {
      $this->tableClass = $tableClass;
    }
  }
  
  /**
   * Changes the number of the table columns 
   * @param number $columns
   */
  public function resetColumns($columns)
  {
  	$this->columns = $columns;
  }
  
  /**
   * Sets the css class for a cell
   * @param string $class
   */
  public function setCellClass($class)
  {
    $this->cellsClasses[$this->index] = $class; 	
  }
  
  /**
   * Sets any other html attributes for the cell
   * @param string $attributes
   */
  public function setCellAttributes($attributes)
  {
    $this->cellsAtrributes[$this->index] = $attributes; 	
  }
  
  /**
   * Sets the style attribute of a cell
   * @param string $style
   */
  public function setCellStyle($style)
  {
    $this->cellsStyles[$this->index] = $style; 	
  }
  
  /**
   * Sets a css class for all cells of a column in a table
   * @param number $column
   * @param string $class
   */
  public function setColumnClass($column,$class)
  {
  	$this->collumnsClasses[$column] = $class;
  }
  
  /**
   * Adds a cell to the table with the content given 
   * @param string $cell The content of the cell
   */
  public function addCell($cell = "")
  {
    $this->cells[$this->index] = $cell; 
    $this->index++;	
  }
  
  /**
   * Sets the Html attributes of the table 
   * @param string $htmlAttributes
   */
  public function setHtmlAttributes($htmlAttributes)
  {
  	$this->htmlAttributes = $htmlAttributes; 
  }
  
  /**
   * Sets the Html attributes of the table to be 
   * width='100%' cellpadding='0' cellspacing='0'
   */
  public function fuulTable()
  {
    $this->htmlAttributes = "width='100%' cellpadding='0' cellspacing='0'";
  }
  
  /**
   * Adds a blang row to the table
   * @param $height If given then it will be the height in px of the row 
   */
  public function addRow($height = null)
  {
  	for($i=0; $i<$this->columns; $i++)
  	{
  		if($height != null)
  		{  
  		  $this->setCellStyle("height:".$height."px");
  		}
  		$this->addCell(""); 
  	}
  }
  
  /* Generates and return the html code of the current instance. 
   * @see _Html_Interface::generate()
   */
  public function generate()
  {
  	$result = "";
  	if(count($this->cells)>0)
  	{
  		$currentColumn = 1; 
  		$result = "<table"; 
  		if(isset($this->htmlAttributes))
  		{
  			$result .= " ".$this->htmlAttributes;
  		}
  		if(isset($this->tableClass))
  		{
  			$result .= " ".$this->tableClass;
  		}
  		$result .= ">\n"; 
  		for($i=0; $i<count($this->cells); $i++)
  		{
  			if($currentColumn==1)
  			{
  				$result .= "<tr>\n";
  			}
  			
  			$result .= "<td";
  			
  			if(isset($this->collumnsClasses[$currentColumn]))
  			{
  			  $result .= " class='".$this->collumnsClasses[$currentColumn]."'";	
  			}
  			
  			if (isset($this->cellsClasses[$i]))
  			{
  				$result .= " class='".$this->cellsClasses[$i]."'";
  			}
  			
  		  if (isset($this->cellsStyles[$i]))
  			{
  				$result .= " style=\"".$this->cellsStyles[$i]."\"";
  			}

  		  if (isset($this->cellsAtrributes[$i]))
  			{
  				$result .= " ".$this->cellsAtrributes[$i];
  			}
  			
  			$result .= ">\n";
  			$result .= $this->cells[$i]; 
  			$result .= "</td>\n";
  			if($currentColumn==$this->columns)
  			{
  			  $result .= "</tr>\n";
  			  $currentColumn = 1;  	
  			}
  			else 
  			{
  				$currentColumn++; 
  			}
  		}
  		
  		if($currentColumn!=1)
  		{
  			$currentColumn--; 
  			$times = $this->columns - $currentColumn; 
  			for($i=0; $i<$times; $i++)
  			{
  				$result .= "<td></td>\n"; 
  			}
  			$result .= "</tr>\n"; 
  		}
  		
  		$result .="</table>\n";
  	}
  	return $result; 
  }
}
?>