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<?php
namespace PhpOffice\PhpSpreadsheet\Writer\Xls;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer\SpContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE\Blip;
class Escher
{
/**
* The object we are writing.
*/
private $object;
/**
* The written binary data.
*/
private $data;
/**
* Shape offsets. Positions in binary stream where a new shape record begins.
*
* @var array
*/
private $spOffsets;
/**
* Shape types.
*
* @var array
*/
private $spTypes;
/**
* Constructor.
*
* @param mixed $object
*/
public function __construct($object)
{
$this->object = $object;
}
/**
* Process the object to be written.
*
* @return string
*/
public function close()
{
// initialize
$this->data = '';
switch (get_class($this->object)) {
case \PhpOffice\PhpSpreadsheet\Shared\Escher::class:
if ($dggContainer = $this->object->getDggContainer()) {
$writer = new self($dggContainer);
$this->data = $writer->close();
} elseif ($dgContainer = $this->object->getDgContainer()) {
$writer = new self($dgContainer);
$this->data = $writer->close();
$this->spOffsets = $writer->getSpOffsets();
$this->spTypes = $writer->getSpTypes();
}
break;
case DggContainer::class:
// this is a container record
// initialize
$innerData = '';
// write the dgg
$recVer = 0x0;
$recInstance = 0x0000;
$recType = 0xF006;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
// dgg data
$dggData =
pack(
'VVVV',
$this->object->getSpIdMax(), // maximum shape identifier increased by one
$this->object->getCDgSaved() + 1, // number of file identifier clusters increased by one
$this->object->getCSpSaved(),
$this->object->getCDgSaved() // count total number of drawings saved
);
// add file identifier clusters (one per drawing)
$IDCLs = $this->object->getIDCLs();
foreach ($IDCLs as $dgId => $maxReducedSpId) {
$dggData .= pack('VV', $dgId, $maxReducedSpId + 1);
}
$header = pack('vvV', $recVerInstance, $recType, strlen($dggData));
$innerData .= $header . $dggData;
// write the bstoreContainer
if ($bstoreContainer = $this->object->getBstoreContainer()) {
$writer = new self($bstoreContainer);
$innerData .= $writer->close();
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF000;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
break;
case BstoreContainer::class:
// this is a container record
// initialize
$innerData = '';
// treat the inner data
if ($BSECollection = $this->object->getBSECollection()) {
foreach ($BSECollection as $BSE) {
$writer = new self($BSE);
$innerData .= $writer->close();
}
}
// write the record
$recVer = 0xF;
$recInstance = count($this->object->getBSECollection());
$recType = 0xF001;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
break;
case BSE::class:
// this is a semi-container record
// initialize
$innerData = '';
// here we treat the inner data
if ($blip = $this->object->getBlip()) {
$writer = new self($blip);
$innerData .= $writer->close();
}
// initialize
$data = '';
$btWin32 = $this->object->getBlipType();
$btMacOS = $this->object->getBlipType();
$data .= pack('CC', $btWin32, $btMacOS);
$rgbUid = pack('VVVV', 0, 0, 0, 0); // todo
$data .= $rgbUid;
$tag = 0;
$size = strlen($innerData);
$cRef = 1;
$foDelay = 0; //todo
$unused1 = 0x0;
$cbName = 0x0;
$unused2 = 0x0;
$unused3 = 0x0;
$data .= pack('vVVVCCCC', $tag, $size, $cRef, $foDelay, $unused1, $cbName, $unused2, $unused3);
$data .= $innerData;
// write the record
$recVer = 0x2;
$recInstance = $this->object->getBlipType();
$recType = 0xF007;
$length = strlen($data);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header;
$this->data .= $data;
break;
case Blip::class:
// this is an atom record
// write the record
switch ($this->object->getParent()->getBlipType()) {
case BSE::BLIPTYPE_JPEG:
// initialize
$innerData = '';
$rgbUid1 = pack('VVVV', 0, 0, 0, 0); // todo
$innerData .= $rgbUid1;
$tag = 0xFF; // todo
$innerData .= pack('C', $tag);
$innerData .= $this->object->getData();
$recVer = 0x0;
$recInstance = 0x46A;
$recType = 0xF01D;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header;
$this->data .= $innerData;
break;
case BSE::BLIPTYPE_PNG:
// initialize
$innerData = '';
$rgbUid1 = pack('VVVV', 0, 0, 0, 0); // todo
$innerData .= $rgbUid1;
$tag = 0xFF; // todo
$innerData .= pack('C', $tag);
$innerData .= $this->object->getData();
$recVer = 0x0;
$recInstance = 0x6E0;
$recType = 0xF01E;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header;
$this->data .= $innerData;
break;
}
break;
case DgContainer::class:
// this is a container record
// initialize
$innerData = '';
// write the dg
$recVer = 0x0;
$recInstance = $this->object->getDgId();
$recType = 0xF008;
$length = 8;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
// number of shapes in this drawing (including group shape)
$countShapes = count($this->object->getSpgrContainer()->getChildren());
$innerData .= $header . pack('VV', $countShapes, $this->object->getLastSpId());
// write the spgrContainer
if ($spgrContainer = $this->object->getSpgrContainer()) {
$writer = new self($spgrContainer);
$innerData .= $writer->close();
// get the shape offsets relative to the spgrContainer record
$spOffsets = $writer->getSpOffsets();
$spTypes = $writer->getSpTypes();
// save the shape offsets relative to dgContainer
foreach ($spOffsets as &$spOffset) {
$spOffset += 24; // add length of dgContainer header data (8 bytes) plus dg data (16 bytes)
}
$this->spOffsets = $spOffsets;
$this->spTypes = $spTypes;
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF002;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
break;
case SpgrContainer::class:
// this is a container record
// initialize
$innerData = '';
// initialize spape offsets
$totalSize = 8;
$spOffsets = [];
$spTypes = [];
// treat the inner data
foreach ($this->object->getChildren() as $spContainer) {
$writer = new self($spContainer);
$spData = $writer->close();
$innerData .= $spData;
// save the shape offsets (where new shape records begin)
$totalSize += strlen($spData);
$spOffsets[] = $totalSize;
$spTypes = array_merge($spTypes, $writer->getSpTypes());
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF003;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
$this->spOffsets = $spOffsets;
$this->spTypes = $spTypes;
break;
case SpContainer::class:
// initialize
$data = '';
// build the data
// write group shape record, if necessary?
if ($this->object->getSpgr()) {
$recVer = 0x1;
$recInstance = 0x0000;
$recType = 0xF009;
$length = 0x00000010;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . pack('VVVV', 0, 0, 0, 0);
}
$this->spTypes[] = ($this->object->getSpType());
// write the shape record
$recVer = 0x2;
$recInstance = $this->object->getSpType(); // shape type
$recType = 0xF00A;
$length = 0x00000008;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . pack('VV', $this->object->getSpId(), $this->object->getSpgr() ? 0x0005 : 0x0A00);
// the options
if ($this->object->getOPTCollection()) {
$optData = '';
$recVer = 0x3;
$recInstance = count($this->object->getOPTCollection());
$recType = 0xF00B;
foreach ($this->object->getOPTCollection() as $property => $value) {
$optData .= pack('vV', $property, $value);
}
$length = strlen($optData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . $optData;
}
// the client anchor
if ($this->object->getStartCoordinates()) {
$clientAnchorData = '';
$recVer = 0x0;
$recInstance = 0x0;
$recType = 0xF010;
// start coordinates
[$column, $row] = Coordinate::indexesFromString($this->object->getStartCoordinates());
$c1 = $column - 1;
$r1 = $row - 1;
// start offsetX
$startOffsetX = $this->object->getStartOffsetX();
// start offsetY
$startOffsetY = $this->object->getStartOffsetY();
// end coordinates
[$column, $row] = Coordinate::indexesFromString($this->object->getEndCoordinates());
$c2 = $column - 1;
$r2 = $row - 1;
// end offsetX
$endOffsetX = $this->object->getEndOffsetX();
// end offsetY
$endOffsetY = $this->object->getEndOffsetY();
$clientAnchorData = pack('vvvvvvvvv', $this->object->getSpFlag(), $c1, $startOffsetX, $r1, $startOffsetY, $c2, $endOffsetX, $r2, $endOffsetY);
$length = strlen($clientAnchorData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . $clientAnchorData;
}
// the client data, just empty for now
if (!$this->object->getSpgr()) {
$clientDataData = '';
$recVer = 0x0;
$recInstance = 0x0;
$recType = 0xF011;
$length = strlen($clientDataData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . $clientDataData;
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF004;
$length = strlen($data);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $data;
break;
}
return $this->data;
}
/**
* Gets the shape offsets.
*
* @return array
*/
public function getSpOffsets()
{
return $this->spOffsets;
}
/**
* Gets the shape types.
*
* @return array
*/
public function getSpTypes()
{
return $this->spTypes;
}
}