<?php

/**
 * Create image graphics (charts)
 *
 * @category   Phpdocx
 * @package    elements
 * @copyright  Copyright (c) 2009-2013 Narcea Producciones Multimedia S.L.
 *             (http://www.2mdc.com)
 * @license    http://www.phpdocx.com/wp-content/themes/lightword/pro_license.php
 * @version    2.2
 * @link       http://www.phpdocx.com
 * @since      Class available since Release 2.2
 */
class CreateGraphicImg
{
    /**
     *
     * @access private
     * @var CreateDocx
     */
    private $_docx;
    
    /**
     * @access private
     * @var CreateGraphic
     * @static
     */
    private static $_instance = null;
    
    /**
     * Construct
     *
     * @access public
     */
    public function __construct()
    {
        $this->_color = '';
        $this->_cornerX = '';
        $this->_data = '';
        $this->_font = '';
        $this->_sizeX = '';
        $this->_sizeY = '';
        $this->_title = '';
        $this->_type = '';
    }
    
    /**
     * Destruct
     *
     * @access public
     */
    public function __destruct()
    {

    }

    /**
     *
     * @access public
     * @return CreateGraphic
     * @static
     */
    public static function getInstance()
    {
        if (self::$_instance == NULL) {
            self::$_instance = new CreateGraphicImg();
        }
        return self::$_instance;
    }
    
    /**
     * Create graphic image
     *
     * @access public
     * @param array $args[0]
     * @param array $args[1]
     * @return boolean
     */
    public function createGraphicImg()
    {
    	$this->_docx = new CreateDocx();
    	$tempFile = tempnam($this->_docx->getTemporaryDirectory(), 'docXGraph');

    	$args = func_get_args();

        $data = $args[0]['data'];
        $font = dirname(__FILE__) . 
        		'/../lib/zetacomponents/Graph/docs/tutorial/tutorial_font.ttf';
        $sizeX = $args[0]['sizeX'] ? $args[0]['sizeX'] : 320;
        $sizeY = $args[0]['sizeY'] ? $args[0]['sizeY'] : 300;
        $type = $args[0]['type'];
        $title = $args[0]['title'];
        
        $color = $args[0]['color'];
        switch ($color) {
        	case 1:
        		$palette = 'ezcGraphPaletteBlack';
        	break;
        	case 2:
        		$palette = 'ezcGraphPaletteTango';
        	break;
        	case 3:
        		$palette = 'ezcGraphPaletteEzBlue';
        	break;
        	case 4:
        		$palette = 'ezcGraphPaletteEzRed';
        	break;
        	case 5:
        		$palette = 'ezcGraphPaletteEzGreen';
        	break;
        	default:
	        	$palette = 'ezcGraphPaletteTango';
        	break;
        }
 
        switch ($type) {
        	case 'barChart':
				$graph = new ezcGraphHorizontalBarChart();
				$graph->palette = new $palette();
				foreach ( $data as $language => $value )
				{
					$graph->data[$language] = new ezcGraphArrayDataSet($value);
				}
				
				$graph->renderer = new ezcGraphHorizontalRenderer();
        	break;
        	
        	case 'bar3DChart':
        		$graph = new ezcGraphHorizontalBarChart();
				$graph->palette = new $palette();
				foreach ( $data as $language => $value )
				{
				    $graph->data[$language] = new ezcGraphArrayDataSet($value);
				}
				
				$graph->renderer = new ezcGraphRenderer3d();
				$graph->renderer->options->legendSymbolGleam = .5;
				$graph->renderer->options->barChartGleam = .5;
				
        	break;
        	
        	case 'colChart':
				$graph = new ezcGraphBarChart();
				$graph->palette = new $palette();
				foreach ( $data as $language => $value )
				{
					$graph->data[$language] = new ezcGraphArrayDataSet($value);
				}
				
        	break;
        	
        	case 'col3DChart':
        		$graph = new ezcGraphBarChart();
				$graph->palette = new $palette();
				foreach ( $data as $language => $value )
				{
				    $graph->data[$language] = new ezcGraphArrayDataSet($value);
				}
				
				$graph->renderer = new ezcGraphRenderer3d();
				$graph->renderer->options->legendSymbolGleam = .5;
				$graph->renderer->options->barChartGleam = .5;
							
        	break;
        	
        	case 'pieChart':
				$graph = new ezcGraphPieChart();
				$graph->legend = false;
				$graph->palette = new $palette();
				$graph->data['Access statistics'] = 
							new ezcGraphArrayDataSet($data);
        	break;
        	
        	case 'pie3DChart':
        		$graph = new ezcGraphPieChart();
				$graph->options->label = '%2$d (%3$.1f%%)';
				
        		$graph->palette = new $palette();
				$graph->data['Access statistics'] = 
							new ezcGraphArrayDataSet( $data );
				
				$graph->renderer = new ezcGraphRenderer3d();
				
				$graph->renderer->options->moveOut = .2;
				
				$graph->renderer->options->pieChartOffset = 63;
				
				$graph->renderer->options->pieChartSymbolColor = '#FF0000';
				
				$graph->renderer->options->pieChartHeight = 20;
				if (isset($args[0]['cornerX']) 
					&& is_numeric($args[0]['cornerX'])
				){
					$graph->renderer->options->pieChartRotation = 
						$args[0]['cornerX'] / 100;
				} else {
					$graph->renderer->options->pieChartRotation = .6;
				}
			break;
        	
        	default:
        		return false;
        	break;
        }

		$graph->title = $title;
        $graph->options->font = $font;
		$graph->driver = new ezcGraphGdDriver();
		$graph->driver->options->supersampling = 1;
		$graph->driver->options->jpegQuality = 100;
		$graph->driver->options->imageFormat = IMG_JPEG;
		$graph->render( $sizeX, $sizeY, $tempFile);
        return true;
    }
}