PhpOffice\PhpPresentation\Reader\PowerPoint97::readRecordOfficeArtSpgrContainer PHP Метод

    private function readRecordOfficeArtSpgrContainer($stream, $pos, $bInGroup = false)
    {
        $arrayReturn = array('length' => 0);
        $data = $this->loadRecordHeader($stream, $pos);
        if ($data['recVer'] == 0xf && $data['recInstance'] == 0x0 && $data['recType'] == 0xf003) {
            $arrayReturn['length'] += 8;
            do {
                $rhFileBlock = $this->loadRecordHeader($stream, $pos + $arrayReturn['length']);
                if (!($rhFileBlock['recVer'] == 0xf && $rhFileBlock['recInstance'] == 0x0 && ($rhFileBlock['recType'] == 0xf003 || $rhFileBlock['recType'] == 0xf004))) {
                    throw new \Exception('PowerPoint97 Reader : readRecordOfficeArtSpgrContainer.');
                }
                switch ($rhFileBlock['recType']) {
                    case 0xf003:
                        // Core
                        $this->oCurrentGroup = $this->oPhpPresentation->getActiveSlide()->createGroup();
                        $this->bFirstShapeGroup = false;
                        // OfficeArtSpgrContainer
                        $fileBlock = $this->readRecordOfficeArtSpgrContainer($stream, $pos + $arrayReturn['length'], true);
                        $arrayReturn['length'] += $fileBlock['length'];
                        $data['recLen'] -= $fileBlock['length'];
                        break;
                    case 0xf004:
                        // Core
                        if (!$bInGroup) {
                            $this->oCurrentGroup = null;
                        }
                        // OfficeArtSpContainer
                        $fileBlock = $this->readRecordOfficeArtSpContainer($stream, $pos + $arrayReturn['length']);
                        $arrayReturn['length'] += $fileBlock['length'];
                        $data['recLen'] -= $fileBlock['length'];
                        // Core
                        //@todo
                        if (!is_null($fileBlock['shape'])) {
                            if ($bInGroup) {
                                $this->oCurrentGroup->addShape($fileBlock['shape']);
                            } else {
                                $this->oPhpPresentation->getActiveSlide()->addShape($fileBlock['shape']);
                            }
                        }
                        break;
                }
            } while ($data['recLen'] > 0);
        }
        return $arrayReturn;
    }