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<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2012 PHPExcel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category PHPExcel
* @package PHPExcel_Writer_Excel2007
* @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.7, 2012-05-19
*/
/**
* PHPExcel_Writer_Excel2007_ContentTypes
*
* @category PHPExcel
* @package PHPExcel_Writer_Excel2007
* @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
*/
class PHPExcel_Writer_Excel2007_ContentTypes extends PHPExcel_Writer_Excel2007_WriterPart
{
/**
* Write content types to XML format
*
* @param PHPExcel $pPHPExcel
* @param boolean $includeCharts Flag indicating if we should include drawing details for charts
* @return string XML Output
* @throws Exception
*/
public function writeContentTypes(PHPExcel $pPHPExcel = null, $includeCharts = FALSE)
{
// Create XML writer
$objWriter = null;
if ($this->getParentWriter()->getUseDiskCaching()) {
$objWriter = new PHPExcel_Shared_XMLWriter(PHPExcel_Shared_XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
} else {
$objWriter = new PHPExcel_Shared_XMLWriter(PHPExcel_Shared_XMLWriter::STORAGE_MEMORY);
}
// XML header
$objWriter->startDocument('1.0','UTF-8','yes');
// Types
$objWriter->startElement('Types');
$objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/content-types');
// Theme
$this->_writeOverrideContentType(
$objWriter, '/xl/theme/theme1.xml', 'application/vnd.openxmlformats-officedocument.theme+xml'
);
// Styles
$this->_writeOverrideContentType(
$objWriter, '/xl/styles.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml'
);
// Rels
$this->_writeDefaultContentType(
$objWriter, 'rels', 'application/vnd.openxmlformats-package.relationships+xml'
);
// XML
$this->_writeDefaultContentType(
$objWriter, 'xml', 'application/xml'
);
// VML
$this->_writeDefaultContentType(
$objWriter, 'vml', 'application/vnd.openxmlformats-officedocument.vmlDrawing'
);
// Workbook
$this->_writeOverrideContentType(
$objWriter, '/xl/workbook.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml'
);
// DocProps
$this->_writeOverrideContentType(
$objWriter, '/docProps/app.xml', 'application/vnd.openxmlformats-officedocument.extended-properties+xml'
);
$this->_writeOverrideContentType(
$objWriter, '/docProps/core.xml', 'application/vnd.openxmlformats-package.core-properties+xml'
);
$customPropertyList = $pPHPExcel->getProperties()->getCustomProperties();
if (!empty($customPropertyList)) {
$this->_writeOverrideContentType(
$objWriter, '/docProps/custom.xml', 'application/vnd.openxmlformats-officedocument.custom-properties+xml'
);
}
// Worksheets
$sheetCount = $pPHPExcel->getSheetCount();
for ($i = 0; $i < $sheetCount; ++$i) {
$this->_writeOverrideContentType(
$objWriter, '/xl/worksheets/sheet' . ($i + 1) . '.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml'
);
}
// Shared strings
$this->_writeOverrideContentType(
$objWriter, '/xl/sharedStrings.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml'
);
// Add worksheet relationship content types
$chart = 1;
for ($i = 0; $i < $sheetCount; ++$i) {
$drawings = $pPHPExcel->getSheet($i)->getDrawingCollection();
$drawingCount = count($drawings);
$chartCount = ($includeCharts) ? $pPHPExcel->getSheet($i)->getChartCount() : 0;
// We need a drawing relationship for the worksheet if we have either drawings or charts
if (($drawingCount > 0) || ($chartCount > 0)) {
$this->_writeOverrideContentType(
$objWriter, '/xl/drawings/drawing' . ($i + 1) . '.xml', 'application/vnd.openxmlformats-officedocument.drawing+xml'
);
}
// If we have charts, then we need a chart relationship for every individual chart
if ($chartCount > 0) {
for ($c = 0; $c < $chartCount; ++$c) {
$this->_writeOverrideContentType(
$objWriter, '/xl/charts/chart' . $chart++ . '.xml', 'application/vnd.openxmlformats-officedocument.drawingml.chart+xml'
);
}
}
}
// Comments
for ($i = 0; $i < $sheetCount; ++$i) {
if (count($pPHPExcel->getSheet($i)->getComments()) > 0) {
$this->_writeOverrideContentType(
$objWriter, '/xl/comments' . ($i + 1) . '.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml'
);
}
}
// Add media content-types
$aMediaContentTypes = array();
$mediaCount = $this->getParentWriter()->getDrawingHashTable()->count();
for ($i = 0; $i < $mediaCount; ++$i) {
$extension = '';
$mimeType = '';
if ($this->getParentWriter()->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_Drawing) {
$extension = strtolower($this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getExtension());
$mimeType = $this->_getImageMimeType( $this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getPath() );
} else if ($this->getParentWriter()->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_MemoryDrawing) {
$extension = strtolower($this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getMimeType());
$extension = explode('/', $extension);
$extension = $extension[1];
$mimeType = $this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getMimeType();
}
if (!isset( $aMediaContentTypes[$extension]) ) {
$aMediaContentTypes[$extension] = $mimeType;
$this->_writeDefaultContentType(
$objWriter, $extension, $mimeType
);
}
}
$sheetCount = $pPHPExcel->getSheetCount();
for ($i = 0; $i < $sheetCount; ++$i) {
if (count($pPHPExcel->getSheet()->getHeaderFooter()->getImages()) > 0) {
foreach ($pPHPExcel->getSheet()->getHeaderFooter()->getImages() as $image) {
if (!isset( $aMediaContentTypes[strtolower($image->getExtension())]) ) {
$aMediaContentTypes[strtolower($image->getExtension())] = $this->_getImageMimeType( $image->getPath() );
$this->_writeDefaultContentType(
$objWriter, strtolower($image->getExtension()), $aMediaContentTypes[strtolower($image->getExtension())]
);
}
}
}
}
$objWriter->endElement();
// Return
return $objWriter->getData();
}
/**
* Get image mime type
*
* @param string $pFile Filename
* @return string Mime Type
* @throws Exception
*/
private function _getImageMimeType($pFile = '')
{
if (PHPExcel_Shared_File::file_exists($pFile)) {
$image = getimagesize($pFile);
return image_type_to_mime_type($image[2]);
} else {
throw new Exception("File $pFile does not exist");
}
}
/**
* Write Default content type
*
* @param PHPExcel_Shared_XMLWriter $objWriter XML Writer
* @param string $pPartname Part name
* @param string $pContentType Content type
* @throws Exception
*/
private function _writeDefaultContentType(PHPExcel_Shared_XMLWriter $objWriter = null, $pPartname = '', $pContentType = '')
{
if ($pPartname != '' && $pContentType != '') {
// Write content type
$objWriter->startElement('Default');
$objWriter->writeAttribute('Extension', $pPartname);
$objWriter->writeAttribute('ContentType', $pContentType);
$objWriter->endElement();
} else {
throw new Exception("Invalid parameters passed.");
}
}
/**
* Write Override content type
*
* @param PHPExcel_Shared_XMLWriter $objWriter XML Writer
* @param string $pPartname Part name
* @param string $pContentType Content type
* @throws Exception
*/
private function _writeOverrideContentType(PHPExcel_Shared_XMLWriter $objWriter = null, $pPartname = '', $pContentType = '')
{
if ($pPartname != '' && $pContentType != '') {
// Write content type
$objWriter->startElement('Override');
$objWriter->writeAttribute('PartName', $pPartname);
$objWriter->writeAttribute('ContentType', $pContentType);
$objWriter->endElement();
} else {
throw new Exception("Invalid parameters passed.");
}
}
}