<?php

/**

 * PHPExcel

 *

 * Copyright (c) 2006 - 2014 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 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)

 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL

 * @version    1.8.0, 2014-03-02

 */





/**

 * PHPExcel_Writer_Excel2007_Drawing

 *

 * @category   PHPExcel

 * @package    PHPExcel_Writer_Excel2007

 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)

 */

class PHPExcel_Writer_Excel2007_Drawing extends PHPExcel_Writer_Excel2007_WriterPart

{

	/**

	 * Write drawings to XML format

	 *

	 * @param 	PHPExcel_Worksheet	$pWorksheet

	 * @param	int					&$chartRef		Chart ID

	 * @param	boolean				$includeCharts	Flag indicating if we should include drawing details for charts

	 * @return 	string 				XML Output

	 * @throws 	PHPExcel_Writer_Exception

	 */

	public function writeDrawings(PHPExcel_Worksheet $pWorksheet = null, &$chartRef, $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');



		// xdr:wsDr

		$objWriter->startElement('xdr:wsDr');

		$objWriter->writeAttribute('xmlns:xdr', 'http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing');

		$objWriter->writeAttribute('xmlns:a', 'http://schemas.openxmlformats.org/drawingml/2006/main');



			// Loop through images and write drawings

			$i = 1;

			$iterator = $pWorksheet->getDrawingCollection()->getIterator();

			while ($iterator->valid()) {

				$this->_writeDrawing($objWriter, $iterator->current(), $i);



				$iterator->next();

				++$i;

			}



			if ($includeCharts) {

				$chartCount = $pWorksheet->getChartCount();

				// Loop through charts and write the chart position

				if ($chartCount > 0) {

					for ($c = 0; $c < $chartCount; ++$c) {

						$this->_writeChart($objWriter, $pWorksheet->getChartByIndex($c), $c+$i);

					}

				}

			}





		$objWriter->endElement();



		// Return

		return $objWriter->getData();

	}



	/**

	 * Write drawings to XML format

	 *

	 * @param 	PHPExcel_Shared_XMLWriter	$objWriter 		XML Writer

	 * @param 	PHPExcel_Chart				$pChart

	 * @param 	int							$pRelationId

	 * @throws 	PHPExcel_Writer_Exception

	 */

	public function _writeChart(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Chart $pChart = null, $pRelationId = -1)

	{

		$tl = $pChart->getTopLeftPosition();

		$tl['colRow'] = PHPExcel_Cell::coordinateFromString($tl['cell']);

		$br = $pChart->getBottomRightPosition();

		$br['colRow'] = PHPExcel_Cell::coordinateFromString($br['cell']);



		$objWriter->startElement('xdr:twoCellAnchor');



			$objWriter->startElement('xdr:from');

				$objWriter->writeElement('xdr:col', PHPExcel_Cell::columnIndexFromString($tl['colRow'][0]) - 1);

				$objWriter->writeElement('xdr:colOff', PHPExcel_Shared_Drawing::pixelsToEMU($tl['xOffset']));

				$objWriter->writeElement('xdr:row', $tl['colRow'][1] - 1);

				$objWriter->writeElement('xdr:rowOff', PHPExcel_Shared_Drawing::pixelsToEMU($tl['yOffset']));

			$objWriter->endElement();

			$objWriter->startElement('xdr:to');

				$objWriter->writeElement('xdr:col', PHPExcel_Cell::columnIndexFromString($br['colRow'][0]) - 1);

				$objWriter->writeElement('xdr:colOff', PHPExcel_Shared_Drawing::pixelsToEMU($br['xOffset']));

				$objWriter->writeElement('xdr:row', $br['colRow'][1] - 1);

				$objWriter->writeElement('xdr:rowOff', PHPExcel_Shared_Drawing::pixelsToEMU($br['yOffset']));

			$objWriter->endElement();



			$objWriter->startElement('xdr:graphicFrame');

				$objWriter->writeAttribute('macro', '');

				$objWriter->startElement('xdr:nvGraphicFramePr');

					$objWriter->startElement('xdr:cNvPr');

						$objWriter->writeAttribute('name', 'Chart '.$pRelationId);

						$objWriter->writeAttribute('id', 1025 * $pRelationId);

					$objWriter->endElement();

					$objWriter->startElement('xdr:cNvGraphicFramePr');

						$objWriter->startElement('a:graphicFrameLocks');

						$objWriter->endElement();

					$objWriter->endElement();

				$objWriter->endElement();



				$objWriter->startElement('xdr:xfrm');

					$objWriter->startElement('a:off');

						$objWriter->writeAttribute('x', '0');

						$objWriter->writeAttribute('y', '0');

					$objWriter->endElement();

					$objWriter->startElement('a:ext');

						$objWriter->writeAttribute('cx', '0');

						$objWriter->writeAttribute('cy', '0');

					$objWriter->endElement();

				$objWriter->endElement();



				$objWriter->startElement('a:graphic');

					$objWriter->startElement('a:graphicData');

						$objWriter->writeAttribute('uri', 'http://schemas.openxmlformats.org/drawingml/2006/chart');

						$objWriter->startElement('c:chart');

							$objWriter->writeAttribute('xmlns:c', 'http://schemas.openxmlformats.org/drawingml/2006/chart');

							$objWriter->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');

							$objWriter->writeAttribute('r:id', 'rId'.$pRelationId);

						$objWriter->endElement();

					$objWriter->endElement();

				$objWriter->endElement();

			$objWriter->endElement();



			$objWriter->startElement('xdr:clientData');

			$objWriter->endElement();



		$objWriter->endElement();

	}



	/**

	 * Write drawings to XML format

	 *

	 * @param 	PHPExcel_Shared_XMLWriter			$objWriter 		XML Writer

	 * @param 	PHPExcel_Worksheet_BaseDrawing		$pDrawing

	 * @param 	int									$pRelationId

	 * @throws 	PHPExcel_Writer_Exception

	 */

	public function _writeDrawing(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Worksheet_BaseDrawing $pDrawing = null, $pRelationId = -1)

	{

		if ($pRelationId >= 0) {

			// xdr:oneCellAnchor

			$objWriter->startElement('xdr:oneCellAnchor');

				// Image location

				$aCoordinates 		= PHPExcel_Cell::coordinateFromString($pDrawing->getCoordinates());

				$aCoordinates[0] 	= PHPExcel_Cell::columnIndexFromString($aCoordinates[0]);



				// xdr:from

				$objWriter->startElement('xdr:from');

					$objWriter->writeElement('xdr:col', $aCoordinates[0] - 1);

					$objWriter->writeElement('xdr:colOff', PHPExcel_Shared_Drawing::pixelsToEMU($pDrawing->getOffsetX()));

					$objWriter->writeElement('xdr:row', $aCoordinates[1] - 1);

					$objWriter->writeElement('xdr:rowOff', PHPExcel_Shared_Drawing::pixelsToEMU($pDrawing->getOffsetY()));

				$objWriter->endElement();



				// xdr:ext

				$objWriter->startElement('xdr:ext');

					$objWriter->writeAttribute('cx', PHPExcel_Shared_Drawing::pixelsToEMU($pDrawing->getWidth()));

					$objWriter->writeAttribute('cy', PHPExcel_Shared_Drawing::pixelsToEMU($pDrawing->getHeight()));

				$objWriter->endElement();



				// xdr:pic

				$objWriter->startElement('xdr:pic');



					// xdr:nvPicPr

					$objWriter->startElement('xdr:nvPicPr');



						// xdr:cNvPr

						$objWriter->startElement('xdr:cNvPr');

						$objWriter->writeAttribute('id', $pRelationId);

						$objWriter->writeAttribute('name', $pDrawing->getName());

						$objWriter->writeAttribute('descr', $pDrawing->getDescription());

						$objWriter->endElement();



						// xdr:cNvPicPr

						$objWriter->startElement('xdr:cNvPicPr');



							// a:picLocks

							$objWriter->startElement('a:picLocks');

							$objWriter->writeAttribute('noChangeAspect', '1');

							$objWriter->endElement();



						$objWriter->endElement();



					$objWriter->endElement();



					// xdr:blipFill

					$objWriter->startElement('xdr:blipFill');



						// a:blip

						$objWriter->startElement('a:blip');

						$objWriter->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');

						$objWriter->writeAttribute('r:embed', 'rId' . $pRelationId);

						$objWriter->endElement();



						// a:stretch

						$objWriter->startElement('a:stretch');

							$objWriter->writeElement('a:fillRect', null);

						$objWriter->endElement();



					$objWriter->endElement();



					// xdr:spPr

					$objWriter->startElement('xdr:spPr');



						// a:xfrm

						$objWriter->startElement('a:xfrm');

						$objWriter->writeAttribute('rot', PHPExcel_Shared_Drawing::degreesToAngle($pDrawing->getRotation()));

						$objWriter->endElement();



						// a:prstGeom

						$objWriter->startElement('a:prstGeom');

						$objWriter->writeAttribute('prst', 'rect');



							// a:avLst

							$objWriter->writeElement('a:avLst', null);



						$objWriter->endElement();



//						// a:solidFill

//						$objWriter->startElement('a:solidFill');



//							// a:srgbClr

//							$objWriter->startElement('a:srgbClr');

//							$objWriter->writeAttribute('val', 'FFFFFF');



///* SHADE

//								// a:shade

//								$objWriter->startElement('a:shade');

//								$objWriter->writeAttribute('val', '85000');

//								$objWriter->endElement();

//*/



//							$objWriter->endElement();



//						$objWriter->endElement();

/*

						// a:ln

						$objWriter->startElement('a:ln');

						$objWriter->writeAttribute('w', '88900');

						$objWriter->writeAttribute('cap', 'sq');



							// a:solidFill

							$objWriter->startElement('a:solidFill');



								// a:srgbClr

								$objWriter->startElement('a:srgbClr');

								$objWriter->writeAttribute('val', 'FFFFFF');

								$objWriter->endElement();



							$objWriter->endElement();



							// a:miter

							$objWriter->startElement('a:miter');

							$objWriter->writeAttribute('lim', '800000');

							$objWriter->endElement();



						$objWriter->endElement();

*/



						if ($pDrawing->getShadow()->getVisible()) {

							// a:effectLst

							$objWriter->startElement('a:effectLst');



								// a:outerShdw

								$objWriter->startElement('a:outerShdw');

								$objWriter->writeAttribute('blurRad', 		PHPExcel_Shared_Drawing::pixelsToEMU($pDrawing->getShadow()->getBlurRadius()));

								$objWriter->writeAttribute('dist',			PHPExcel_Shared_Drawing::pixelsToEMU($pDrawing->getShadow()->getDistance()));

								$objWriter->writeAttribute('dir',			PHPExcel_Shared_Drawing::degreesToAngle($pDrawing->getShadow()->getDirection()));

								$objWriter->writeAttribute('algn',			$pDrawing->getShadow()->getAlignment());

								$objWriter->writeAttribute('rotWithShape', 	'0');



									// a:srgbClr

									$objWriter->startElement('a:srgbClr');

									$objWriter->writeAttribute('val',		$pDrawing->getShadow()->getColor()->getRGB());



										// a:alpha

										$objWriter->startElement('a:alpha');

										$objWriter->writeAttribute('val', 	$pDrawing->getShadow()->getAlpha() * 1000);

										$objWriter->endElement();



									$objWriter->endElement();



								$objWriter->endElement();



							$objWriter->endElement();

						}

/*



						// a:scene3d

						$objWriter->startElement('a:scene3d');



							// a:camera

							$objWriter->startElement('a:camera');

							$objWriter->writeAttribute('prst', 'orthographicFront');

							$objWriter->endElement();



							// a:lightRig

							$objWriter->startElement('a:lightRig');

							$objWriter->writeAttribute('rig', 'twoPt');

							$objWriter->writeAttribute('dir', 't');



								// a:rot

								$objWriter->startElement('a:rot');

								$objWriter->writeAttribute('lat', '0');

								$objWriter->writeAttribute('lon', '0');

								$objWriter->writeAttribute('rev', '0');

								$objWriter->endElement();



							$objWriter->endElement();



						$objWriter->endElement();

*/

/*

						// a:sp3d

						$objWriter->startElement('a:sp3d');



							// a:bevelT

							$objWriter->startElement('a:bevelT');

							$objWriter->writeAttribute('w', '25400');

							$objWriter->writeAttribute('h', '19050');

							$objWriter->endElement();



							// a:contourClr

							$objWriter->startElement('a:contourClr');



								// a:srgbClr

								$objWriter->startElement('a:srgbClr');

								$objWriter->writeAttribute('val', 'FFFFFF');

								$objWriter->endElement();



							$objWriter->endElement();



						$objWriter->endElement();

*/

					$objWriter->endElement();



				$objWriter->endElement();



				// xdr:clientData

				$objWriter->writeElement('xdr:clientData', null);



			$objWriter->endElement();

		} else {

			throw new PHPExcel_Writer_Exception("Invalid parameters passed.");

		}

	}



	/**

	 * Write VML header/footer images to XML format

	 *

	 * @param 	PHPExcel_Worksheet				$pWorksheet

	 * @return 	string 								XML Output

	 * @throws 	PHPExcel_Writer_Exception

	 */

	public function writeVMLHeaderFooterImages(PHPExcel_Worksheet $pWorksheet = null)

	{

		// 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');



  		// Header/footer images

  		$images = $pWorksheet->getHeaderFooter()->getImages();



		// xml

		$objWriter->startElement('xml');

		$objWriter->writeAttribute('xmlns:v', 'urn:schemas-microsoft-com:vml');

		$objWriter->writeAttribute('xmlns:o', 'urn:schemas-microsoft-com:office:office');

		$objWriter->writeAttribute('xmlns:x', 'urn:schemas-microsoft-com:office:excel');



			// o:shapelayout

			$objWriter->startElement('o:shapelayout');

			$objWriter->writeAttribute('v:ext', 		'edit');



				// o:idmap

				$objWriter->startElement('o:idmap');

				$objWriter->writeAttribute('v:ext', 	'edit');

				$objWriter->writeAttribute('data', 		'1');

				$objWriter->endElement();



			$objWriter->endElement();



			// v:shapetype

			$objWriter->startElement('v:shapetype');

			$objWriter->writeAttribute('id', 					'_x0000_t75');

			$objWriter->writeAttribute('coordsize', 			'21600,21600');

			$objWriter->writeAttribute('o:spt', 				'75');

			$objWriter->writeAttribute('o:preferrelative', 		't');

			$objWriter->writeAttribute('path', 					'm@4@5l@4@11@9@11@9@5xe');

			$objWriter->writeAttribute('filled',		 		'f');

			$objWriter->writeAttribute('stroked',		 		'f');



				// v:stroke

				$objWriter->startElement('v:stroke');

				$objWriter->writeAttribute('joinstyle', 		'miter');

				$objWriter->endElement();



				// v:formulas

				$objWriter->startElement('v:formulas');



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'if lineDrawn pixelLineWidth 0');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'sum @0 1 0');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'sum 0 0 @1');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'prod @2 1 2');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'prod @3 21600 pixelWidth');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'prod @3 21600 pixelHeight');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'sum @0 0 1');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'prod @6 1 2');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'prod @7 21600 pixelWidth');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'sum @8 21600 0');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'prod @7 21600 pixelHeight');

					$objWriter->endElement();



					// v:f

					$objWriter->startElement('v:f');

					$objWriter->writeAttribute('eqn', 		'sum @10 21600 0');

					$objWriter->endElement();



				$objWriter->endElement();



				// v:path

				$objWriter->startElement('v:path');

				$objWriter->writeAttribute('o:extrusionok', 	'f');

				$objWriter->writeAttribute('gradientshapeok', 	't');

				$objWriter->writeAttribute('o:connecttype', 	'rect');

				$objWriter->endElement();



				// o:lock

				$objWriter->startElement('o:lock');

				$objWriter->writeAttribute('v:ext', 			'edit');

				$objWriter->writeAttribute('aspectratio', 		't');

				$objWriter->endElement();



			$objWriter->endElement();



			// Loop through images

			foreach ($images as $key => $value) {

				$this->_writeVMLHeaderFooterImage($objWriter, $key, $value);

			}



		$objWriter->endElement();



		// Return

		return $objWriter->getData();

	}



	/**

	 * Write VML comment to XML format

	 *

	 * @param 	PHPExcel_Shared_XMLWriter		$objWriter 			XML Writer

	 * @param	string							$pReference			Reference

	 * @param 	PHPExcel_Worksheet_HeaderFooterDrawing	$pImage		Image

	 * @throws 	PHPExcel_Writer_Exception

	 */

	public function _writeVMLHeaderFooterImage(PHPExcel_Shared_XMLWriter $objWriter = null, $pReference = '', PHPExcel_Worksheet_HeaderFooterDrawing $pImage = null)

	{

		// Calculate object id

		preg_match('{(\d+)}', md5($pReference), $m);

		$id = 1500 + (substr($m[1], 0, 2) * 1);



		// Calculate offset

		$width = $pImage->getWidth();

		$height = $pImage->getHeight();

		$marginLeft = $pImage->getOffsetX();

		$marginTop = $pImage->getOffsetY();



		// v:shape

		$objWriter->startElement('v:shape');

		$objWriter->writeAttribute('id', 			$pReference);

		$objWriter->writeAttribute('o:spid', 		'_x0000_s' . $id);

		$objWriter->writeAttribute('type', 			'#_x0000_t75');

		$objWriter->writeAttribute('style', 		"position:absolute;margin-left:{$marginLeft}px;margin-top:{$marginTop}px;width:{$width}px;height:{$height}px;z-index:1");



			// v:imagedata

			$objWriter->startElement('v:imagedata');

			$objWriter->writeAttribute('o:relid', 		'rId' . $pReference);

			$objWriter->writeAttribute('o:title', 		$pImage->getName());

			$objWriter->endElement();



			// o:lock

			$objWriter->startElement('o:lock');

			$objWriter->writeAttribute('v:ext', 		'edit');

			$objWriter->writeAttribute('rotation', 		't');

			$objWriter->endElement();



		$objWriter->endElement();

	}





	/**

	 * Get an array of all drawings

	 *

	 * @param 	PHPExcel							$pPHPExcel

	 * @return 	PHPExcel_Worksheet_Drawing[]		All drawings in PHPExcel

	 * @throws 	PHPExcel_Writer_Exception

	 */

	public function allDrawings(PHPExcel $pPHPExcel = null)

	{

		// Get an array of all drawings

		$aDrawings	= array();



		// Loop through PHPExcel

		$sheetCount = $pPHPExcel->getSheetCount();

		for ($i = 0; $i < $sheetCount; ++$i) {

			// Loop through images and add to array

			$iterator = $pPHPExcel->getSheet($i)->getDrawingCollection()->getIterator();

			while ($iterator->valid()) {

				$aDrawings[] = $iterator->current();



  				$iterator->next();

			}

		}



		return $aDrawings;

	}

}

