Drawing.php

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<?php
class PHPExcel_Worksheet_Drawing extends PHPExcel_Worksheet_BaseDrawing implements PHPExcel_IComparable
{
        private $_path;

    public function __construct()
    {
        // Initialise values
        $this->_path                            = '';

        // Initialize parent
        parent::__construct();
    }

    public function getFilename() {
        return basename($this->_path);
    }

    public function getIndexedFilename() {
        $fileName = $this->getFilename();
        $fileName = str_replace(' ', '_', $fileName);
        return str_replace('.' . $this->getExtension(), '', $fileName) . $this->getImageIndex() . '.' . $this->getExtension();
    }

    public function getExtension() {
        $exploded = explode(".", basename($this->_path));
        return $exploded[count($exploded) - 1];
    }

    public function getPath() {
        return $this->_path;
    }

    public function setPath($pValue = '', $pVerifyFile = true) {
        if ($pVerifyFile) {
                if (file_exists($pValue)) {
                        $this->_path = $pValue;

                        if ($this->_width == 0 && $this->_height == 0) {
                                // Get width/height
                                list($this->_width, $this->_height) = getimagesize($pValue);
                        }
                } else {
                        throw new Exception("File $pValue not found!");
                }
        } else {
                $this->_path = $pValue;
        }
        return $this;
    }

        public function getHashCode() {
        return md5(
                  $this->_path
                . parent::getHashCode()
                . __CLASS__
        );
    }

        public function __clone() {
                $vars = get_object_vars($this);
                foreach ($vars as $key => $value) {
                        if (is_object($value)) {
                                $this->$key = clone $value;
                        } else {
                                $this->$key = $value;
                        }
                }
        }
}