oxutilspic.php

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<?php

require_once getShopBasePath() . "core/utils/oxpicgenerator.php";

class oxUtilsPic extends oxSuperCfg
{

    protected $_aImageTypes = array("GIF" => IMAGETYPE_GIF, "JPG" => IMAGETYPE_JPEG, "PNG" => IMAGETYPE_PNG, "JPEG" => IMAGETYPE_JPEG);

    public function resizeImage($sSrc, $sTarget, $iDesiredWidth, $iDesiredHeight)
    {
        $blResize = false;

        // use this GD Version
        if (($iUseGDVersion = getGdVersion()) && function_exists('imagecreate') &&
            file_exists($sSrc) && ($aImageInfo = @getimagesize($sSrc))
        ) {

            $myConfig = $this->getConfig();
            list($iWidth, $iHeight) = calcImageSize($iDesiredWidth, $iDesiredHeight, $aImageInfo[0], $aImageInfo[1]);
            $blResize = $this->_resize($aImageInfo, $sSrc, null, $sTarget, $iWidth, $iHeight, $iUseGDVersion, $myConfig->getConfigParam('blDisableTouch'), $myConfig->getConfigParam('sDefaultImageQuality'));
        }

        return $blResize;
    }


    public function safePictureDelete($sPicName, $sAbsDynImageDir, $sTable, $sField)
    {
        $blDelete = false;
        if ($this->_isPicDeletable($sPicName, $sTable, $sField)) {
            $blDelete = $this->_deletePicture($sPicName, $sAbsDynImageDir);
        }

        return $blDelete;
    }

    protected function _deletePicture($sPicName, $sAbsDynImageDir)
    {
        $blDeleted = false;
        $myConfig = $this->getConfig();

        if (!$myConfig->isDemoShop() && (strpos($sPicName, 'nopic.jpg') === false ||
                                         strpos($sPicName, 'nopic_ico.jpg') === false)
        ) {

            $sFile = "$sAbsDynImageDir/$sPicName";

            if (file_exists($sFile) && is_file($sFile)) {
                $blDeleted = unlink($sFile);
            }

            if (!$myConfig->getConfigParam('sAltImageUrl')) {
                // deleting various size generated images
                $sGenPath = str_replace('/master/', '/generated/', $sAbsDynImageDir);
                $aFiles = glob("{$sGenPath}*/{$sPicName}");
                if (is_array($aFiles)) {
                    foreach ($aFiles as $sFile) {
                        $blDeleted = unlink($sFile);
                    }
                }
            }
        }

        return $blDeleted;
    }


    protected function _isPicDeletable($sPicName, $sTable, $sField)
    {
        if (!$sPicName || strpos($sPicName, 'nopic.jpg') !== false || strpos($sPicName, 'nopic_ico.jpg') !== false) {
            return false;
        }

        $oDb = oxDb::getDb();
        $iCountUsed = $oDb->getOne("select count(*) from $sTable where $sField = " . $oDb->quote($sPicName) . " group by $sField ", false, false);

        return $iCountUsed > 1 ? false : true;
    }

    public function overwritePic($oObject, $sPicTable, $sPicField, $sPicType, $sPicDir, $aParams, $sAbsDynImageDir)
    {
        $blDelete = false;
        $sPic = $sPicTable . '__' . $sPicField;
        if (isset($oObject->{$sPic}) &&
            ($_FILES['myfile']['size'][$sPicType . '@' . $sPic] > 0 || $aParams[$sPic] != $oObject->{$sPic}->value)
        ) {

            $sImgDir = $sAbsDynImageDir . oxRegistry::get("oxUtilsFile")->getImageDirByType($sPicType);
            $blDelete = $this->safePictureDelete($oObject->{$sPic}->value, $sImgDir, $sPicTable, $sPicField);
        }

        return $blDelete;
    }

    protected function _resizeGif($sSrc, $sTarget, $iNewWidth, $iNewHeight, $iOriginalWidth, $iOriginalHeigth, $iGDVer, $blDisableTouch)
    {
        return resizeGif($sSrc, $sTarget, $iNewWidth, $iNewHeight, $iOriginalWidth, $iOriginalHeigth, $iGDVer, $blDisableTouch);
    }

    protected function _resize($aImageInfo, $sSrc, $hDestinationImage, $sTarget, $iNewWidth, $iNewHeight, $iGdVer, $blDisableTouch, $iDefQuality)
    {
        startProfile("PICTURE_RESIZE");

        $blSuccess = false;
        switch ($aImageInfo[2]) { //Image type
            case ($this->_aImageTypes["GIF"]):
                //php does not process gifs until 7th July 2004 (see lzh licensing)
                if (function_exists("imagegif")) {
                    $blSuccess = resizeGif($sSrc, $sTarget, $iNewWidth, $iNewHeight, $aImageInfo[0], $aImageInfo[1], $iGdVer);
                }
                break;
            case ($this->_aImageTypes["JPEG"]):
            case ($this->_aImageTypes["JPG"]):
                $blSuccess = resizeJpeg($sSrc, $sTarget, $iNewWidth, $iNewHeight, $aImageInfo, $iGdVer, $hDestinationImage, $iDefQuality);
                break;
            case ($this->_aImageTypes["PNG"]):
                $blSuccess = resizePng($sSrc, $sTarget, $iNewWidth, $iNewHeight, $aImageInfo, $iGdVer, $hDestinationImage);
                break;
        }

        if ($blSuccess && !$blDisableTouch) {
            @touch($sTarget);
        }

        stopProfile("PICTURE_RESIZE");

        return $blSuccess;
    }

    protected function _copyAlteredImage($sDestinationImage, $sSourceImage, $iNewWidth, $iNewHeight, $aImageInfo, $sTarget, $iGdVer, $blDisableTouch)
    {
        $blSuccess = copyAlteredImage($sDestinationImage, $sSourceImage, $iNewWidth, $iNewHeight, $aImageInfo, $sTarget, $iGdVer);
        if (!$blDisableTouch && $blSuccess) {
            @touch($sTarget);
        }

        return $blSuccess;
    }
}