/**
* Encode stream
*
* @throws Zend_Pdf_Exception
*/
private function _encodeStream()
{
/**
* All applied stream filters must be processed to encode stream.
* If we don't recognize any of applied filetrs an exception should be thrown here
*/
if (isset($this->_originalDictionary['F'])) {
/** @todo Check, how external files can be processed. */
throw new Zend_Pdf_Exception('External filters are not supported now.');
}
$filters = array_reverse($this->_originalDictionary['Filter'], true);
foreach ($filters as $id => $filterName) {
switch ($filterName) {
case 'ASCIIHexDecode':
$this->_value->value = Zend_Pdf_Filter_AsciiHex::encode($this->_value->value);
break;
case 'ASCII85Decode':
$this->_value->value = Zend_Pdf_Filter_Ascii85::encode($this->_value->value);
break;
case 'FlateDecode':
$this->_value->value = Zend_Pdf_Filter_Compression_Flate::encode($this->_value->value, $this->_originalDictionary['DecodeParms'][$id]);
break;
case 'LZWDecode':
$this->_value->value = Zend_Pdf_Filter_Compression_Lzw::encode($this->_value->value, $this->_originalDictionary['DecodeParms'][$id]);
break;
default:
throw new Zend_Pdf_Exception('Unknown stream filter: \'' . $filterName . '\'.');
}
}
$this->_streamDecoded = true;
}
/**
* Encode stream
*
* @throws Zend_Pdf_Exception
*/
private function _encodeStream()
{
/**
* All applied stream filters must be processed to encode stream.
* If we don't recognize any of applied filetrs an exception should be thrown here
*/
if (isset($this->_initialDictionaryData['F'])) {
/** @todo Check, how external files can be processed. */
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('External filters are not supported now.');
}
$filters = array_reverse($this->_initialDictionaryData['Filter'], true);
foreach ($filters as $id => $filterName) {
$valueRef =& $this->_value->value->getRef();
$this->_value->value->touch();
switch ($filterName) {
case 'ASCIIHexDecode':
require_once 'Zend/Pdf/Filter/AsciiHex.php';
$valueRef = Zend_Pdf_Filter_AsciiHex::encode($valueRef);
break;
case 'ASCII85Decode':
require_once 'Zend/Pdf/Filter/Ascii85.php';
$valueRef = Zend_Pdf_Filter_Ascii85::encode($valueRef);
break;
case 'FlateDecode':
require_once 'Zend/Pdf/Filter/Compression/Flate.php';
$valueRef = Zend_Pdf_Filter_Compression_Flate::encode($valueRef, $this->_initialDictionaryData['DecodeParms'][$id]);
break;
case 'LZWDecode':
require_once 'Zend/Pdf/Filter/Compression/Lzw.php';
$valueRef = Zend_Pdf_Filter_Compression_Lzw::encode($valueRef, $this->_initialDictionaryData['DecodeParms'][$id]);
break;
case 'RunLengthDecode':
require_once 'Zend/Pdf/Filter/RunLength.php';
$valueRef = Zend_Pdf_Filter_RunLength::encode($valueRef);
break;
default:
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Unknown stream filter: \'' . $filterName . '\'.');
}
}
$this->_streamDecoded = false;
}
private function _encodeStream()
{
if (isset($this->_initialDictionaryData['F'])) {
throw new Zend_Pdf_Exception('External filters are not supported now.');
}
$filters = array_reverse($this->_initialDictionaryData['Filter'], true);
foreach ($filters as $id => $filterName) {
$valueRef =& $this->_value->value->getRef();
$this->_value->value->touch();
switch ($filterName) {
case 'ASCIIHexDecode':
$valueRef = Zend_Pdf_Filter_AsciiHex::encode($valueRef);
break;
case 'ASCII85Decode':
$valueRef = Zend_Pdf_Filter_Ascii85::encode($valueRef);
break;
case 'FlateDecode':
$valueRef = Zend_Pdf_Filter_Compression_Flate::encode($valueRef, $this->_initialDictionaryData['DecodeParms'][$id]);
break;
case 'LZWDecode':
$valueRef = Zend_Pdf_Filter_Compression_Lzw::encode($valueRef, $this->_initialDictionaryData['DecodeParms'][$id]);
break;
case 'RunLengthDecode':
$valueRef = Zend_Pdf_Filter_RunLength::encode($valueRef);
break;
default:
throw new Zend_Pdf_Exception('Unknown stream filter: \'' . $filterName . '\'.');
}
}
$this->_streamDecoded = false;
}
