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<?php

/**
 * PHPExcel_Writer_Excel2007_Style
 *
 * Copyright (c) 2006 - 2015 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 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version    ##VERSION##, ##DATE##
 */
class PHPExcel_Writer_Excel2007_Style extends PHPExcel_Writer_Excel2007_WriterPart
{
    /**
     * Write styles to XML format
     *
     * @param     PHPExcel    $pPHPExcel
     * @return     string         XML Output
     * @throws     PHPExcel_Writer_Exception
     */
    public function writeStyles(PHPExcel $pPHPExcel = 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');

        // styleSheet
        $objWriter->startElement('styleSheet');
        $objWriter->writeAttribute('xml:space', 'preserve');
        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');

        // numFmts
        $objWriter->startElement('numFmts');
        $objWriter->writeAttribute('count', $this->getParentWriter()->getNumFmtHashTable()->count());

        // numFmt
        for ($i = 0; $i < $this->getParentWriter()->getNumFmtHashTable()->count(); ++$i) {
            $this->writeNumFmt($objWriter, $this->getParentWriter()->getNumFmtHashTable()->getByIndex($i), $i);
        }

        $objWriter->endElement();

        // fonts
        $objWriter->startElement('fonts');
        $objWriter->writeAttribute('count', $this->getParentWriter()->getFontHashTable()->count());

        // font
        for ($i = 0; $i < $this->getParentWriter()->getFontHashTable()->count(); ++$i) {
            $this->writeFont($objWriter, $this->getParentWriter()->getFontHashTable()->getByIndex($i));
        }

        $objWriter->endElement();

        // fills
        $objWriter->startElement('fills');
        $objWriter->writeAttribute('count', $this->getParentWriter()->getFillHashTable()->count());

        // fill
        for ($i = 0; $i < $this->getParentWriter()->getFillHashTable()->count(); ++$i) {
            $this->writeFill($objWriter, $this->getParentWriter()->getFillHashTable()->getByIndex($i));
        }

        $objWriter->endElement();

        // borders
        $objWriter->startElement('borders');
        $objWriter->writeAttribute('count', $this->getParentWriter()->getBordersHashTable()->count());

        // border
        for ($i = 0; $i < $this->getParentWriter()->getBordersHashTable()->count(); ++$i) {
            $this->writeBorder($objWriter, $this->getParentWriter()->getBordersHashTable()->getByIndex($i));
        }

        $objWriter->endElement();

        // cellStyleXfs
        $objWriter->startElement('cellStyleXfs');
        $objWriter->writeAttribute('count', 1);

        // xf
        $objWriter->startElement('xf');
        $objWriter->writeAttribute('numFmtId', 0);
        $objWriter->writeAttribute('fontId', 0);
        $objWriter->writeAttribute('fillId', 0);
        $objWriter->writeAttribute('borderId', 0);
        $objWriter->endElement();

        $objWriter->endElement();

        // cellXfs
        $objWriter->startElement('cellXfs');
        $objWriter->writeAttribute('count', count($pPHPExcel->getCellXfCollection()));

        // xf
        foreach ($pPHPExcel->getCellXfCollection() as $cellXf) {
            $this->writeCellStyleXf($objWriter, $cellXf, $pPHPExcel);
        }

        $objWriter->endElement();

        // cellStyles
        $objWriter->startElement('cellStyles');
        $objWriter->writeAttribute('count', 1);

        // cellStyle
        $objWriter->startElement('cellStyle');
        $objWriter->writeAttribute('name', 'Normal');
        $objWriter->writeAttribute('xfId', 0);
        $objWriter->writeAttribute('builtinId', 0);
        $objWriter->endElement();

        $objWriter->endElement();

        // dxfs
        $objWriter->startElement('dxfs');
        $objWriter->writeAttribute('count', $this->getParentWriter()->getStylesConditionalHashTable()->count());

        // dxf
        for ($i = 0; $i < $this->getParentWriter()->getStylesConditionalHashTable()->count(); ++$i) {
            $this->writeCellStyleDxf($objWriter, $this->getParentWriter()->getStylesConditionalHashTable()->getByIndex($i)->getStyle());
        }

        $objWriter->endElement();

        // tableStyles
        $objWriter->startElement('tableStyles');
        $objWriter->writeAttribute('defaultTableStyle', 'TableStyleMedium9');
        $objWriter->writeAttribute('defaultPivotStyle', 'PivotTableStyle1');
        $objWriter->endElement();

        $objWriter->endElement();

        // Return
        return $objWriter->getData();
    }

    /**
     * Write Fill
     *
     * @param     PHPExcel_Shared_XMLWriter     $objWriter         XML Writer
     * @param     PHPExcel_Style_Fill            $pFill            Fill style
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeFill(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style_Fill $pFill = null)
    {
        // Check if this is a pattern type or gradient type
        if ($pFill->getFillType() === PHPExcel_Style_Fill::FILL_GRADIENT_LINEAR ||
            $pFill->getFillType() === PHPExcel_Style_Fill::FILL_GRADIENT_PATH) {
            // Gradient fill
            $this->writeGradientFill($objWriter, $pFill);
        } elseif ($pFill->getFillType() !== null) {
            // Pattern fill
            $this->writePatternFill($objWriter, $pFill);
        }
    }

    /**
     * Write Gradient Fill
     *
     * @param     PHPExcel_Shared_XMLWriter     $objWriter         XML Writer
     * @param     PHPExcel_Style_Fill            $pFill            Fill style
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeGradientFill(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style_Fill $pFill = null)
    {
        // fill
        $objWriter->startElement('fill');

        // gradientFill
        $objWriter->startElement('gradientFill');
        $objWriter->writeAttribute('type', $pFill->getFillType());
        $objWriter->writeAttribute('degree', $pFill->getRotation());

        // stop
        $objWriter->startElement('stop');
        $objWriter->writeAttribute('position', '0');

        // color
        $objWriter->startElement('color');
        $objWriter->writeAttribute('rgb', $pFill->getStartColor()->getARGB());
        $objWriter->endElement();

        $objWriter->endElement();

        // stop
        $objWriter->startElement('stop');
        $objWriter->writeAttribute('position', '1');

        // color
        $objWriter->startElement('color');
        $objWriter->writeAttribute('rgb', $pFill->getEndColor()->getARGB());
        $objWriter->endElement();

        $objWriter->endElement();

        $objWriter->endElement();

        $objWriter->endElement();
    }

    /**
     * Write Pattern Fill
     *
     * @param     PHPExcel_Shared_XMLWriter            $objWriter         XML Writer
     * @param     PHPExcel_Style_Fill                    $pFill            Fill style
     * @throws     PHPExcel_Writer_Exception
     */
    private function writePatternFill(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style_Fill $pFill = null)
    {
        // fill
        $objWriter->startElement('fill');

        // patternFill
        $objWriter->startElement('patternFill');
        $objWriter->writeAttribute('patternType', $pFill->getFillType());

        if ($pFill->getFillType() !== PHPExcel_Style_Fill::FILL_NONE) {
            // fgColor
            if ($pFill->getStartColor()->getARGB()) {
                $objWriter->startElement('fgColor');
                $objWriter->writeAttribute('rgb', $pFill->getStartColor()->getARGB());
                $objWriter->endElement();
            }
        }
        if ($pFill->getFillType() !== PHPExcel_Style_Fill::FILL_NONE) {
            // bgColor
            if ($pFill->getEndColor()->getARGB()) {
                $objWriter->startElement('bgColor');
                $objWriter->writeAttribute('rgb', $pFill->getEndColor()->getARGB());
                $objWriter->endElement();
            }
        }

        $objWriter->endElement();

        $objWriter->endElement();
    }

    /**
     * Write Font
     *
     * @param     PHPExcel_Shared_XMLWriter        $objWriter         XML Writer
     * @param     PHPExcel_Style_Font                $pFont            Font style
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeFont(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style_Font $pFont = null)
    {
        // font
        $objWriter->startElement('font');
        //    Weird! The order of these elements actually makes a difference when opening Excel2007
        //        files in Excel2003 with the compatibility pack. It's not documented behaviour,
        //        and makes for a real WTF!

        // Bold. We explicitly write this element also when false (like MS Office Excel 2007 does
        // for conditional formatting). Otherwise it will apparently not be picked up in conditional
        // formatting style dialog
        if ($pFont->getBold() !== null) {
            $objWriter->startElement('b');
            $objWriter->writeAttribute('val', $pFont->getBold() ? '1' : '0');
            $objWriter->endElement();
        }

        // Italic
        if ($pFont->getItalic() !== null) {
            $objWriter->startElement('i');
            $objWriter->writeAttribute('val', $pFont->getItalic() ? '1' : '0');
            $objWriter->endElement();
        }

        // Strikethrough
        if ($pFont->getStrikethrough() !== null) {
            $objWriter->startElement('strike');
            $objWriter->writeAttribute('val', $pFont->getStrikethrough() ? '1' : '0');
            $objWriter->endElement();
        }

        // Underline
        if ($pFont->getUnderline() !== null) {
            $objWriter->startElement('u');
            $objWriter->writeAttribute('val', $pFont->getUnderline());
            $objWriter->endElement();
        }

        // Superscript / subscript
        if ($pFont->getSuperScript() === true || $pFont->getSubScript() === true) {
            $objWriter->startElement('vertAlign');
            if ($pFont->getSuperScript() === true) {
                $objWriter->writeAttribute('val', 'superscript');
            } elseif ($pFont->getSubScript() === true) {
                $objWriter->writeAttribute('val', 'subscript');
            }
            $objWriter->endElement();
        }

        // Size
        if ($pFont->getSize() !== null) {
            $objWriter->startElement('sz');
            $objWriter->writeAttribute('val', $pFont->getSize());
            $objWriter->endElement();
        }

        // Foreground color
        if ($pFont->getColor()->getARGB() !== null) {
            $objWriter->startElement('color');
            $objWriter->writeAttribute('rgb', $pFont->getColor()->getARGB());
            $objWriter->endElement();
        }

        // Name
        if ($pFont->getName() !== null) {
            $objWriter->startElement('name');
            $objWriter->writeAttribute('val', $pFont->getName());
            $objWriter->endElement();
        }

        $objWriter->endElement();
    }

    /**
     * Write Border
     *
     * @param     PHPExcel_Shared_XMLWriter            $objWriter         XML Writer
     * @param     PHPExcel_Style_Borders                $pBorders        Borders style
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeBorder(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style_Borders $pBorders = null)
    {
        // Write border
        $objWriter->startElement('border');
        // Diagonal?
        switch ($pBorders->getDiagonalDirection()) {
            case PHPExcel_Style_Borders::DIAGONAL_UP:
                $objWriter->writeAttribute('diagonalUp', 'true');
                $objWriter->writeAttribute('diagonalDown', 'false');
                break;
            case PHPExcel_Style_Borders::DIAGONAL_DOWN:
                $objWriter->writeAttribute('diagonalUp', 'false');
                $objWriter->writeAttribute('diagonalDown', 'true');
                break;
            case PHPExcel_Style_Borders::DIAGONAL_BOTH:
                $objWriter->writeAttribute('diagonalUp', 'true');
                $objWriter->writeAttribute('diagonalDown', 'true');
                break;
        }

        // BorderPr
        $this->writeBorderPr($objWriter, 'left', $pBorders->getLeft());
        $this->writeBorderPr($objWriter, 'right', $pBorders->getRight());
        $this->writeBorderPr($objWriter, 'top', $pBorders->getTop());
        $this->writeBorderPr($objWriter, 'bottom', $pBorders->getBottom());
        $this->writeBorderPr($objWriter, 'diagonal', $pBorders->getDiagonal());
        $objWriter->endElement();
    }

    /**
     * Write Cell Style Xf
     *
     * @param     PHPExcel_Shared_XMLWriter            $objWriter         XML Writer
     * @param     PHPExcel_Style                        $pStyle            Style
     * @param     PHPExcel                            $pPHPExcel        Workbook
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeCellStyleXf(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style $pStyle = null, PHPExcel $pPHPExcel = null)
    {
        // xf
        $objWriter->startElement('xf');
        $objWriter->writeAttribute('xfId', 0);
        $objWriter->writeAttribute('fontId', (int)$this->getParentWriter()->getFontHashTable()->getIndexForHashCode($pStyle->getFont()->getHashCode()));
        if ($pStyle->getQuotePrefix()) {
            $objWriter->writeAttribute('quotePrefix', 1);
        }

        if ($pStyle->getNumberFormat()->getBuiltInFormatCode() === false) {
            $objWriter->writeAttribute('numFmtId', (int)($this->getParentWriter()->getNumFmtHashTable()->getIndexForHashCode($pStyle->getNumberFormat()->getHashCode()) + 164));
        } else {
            $objWriter->writeAttribute('numFmtId', (int)$pStyle->getNumberFormat()->getBuiltInFormatCode());
        }

        $objWriter->writeAttribute('fillId', (int)$this->getParentWriter()->getFillHashTable()->getIndexForHashCode($pStyle->getFill()->getHashCode()));
        $objWriter->writeAttribute('borderId', (int)$this->getParentWriter()->getBordersHashTable()->getIndexForHashCode($pStyle->getBorders()->getHashCode()));

        // Apply styles?
        $objWriter->writeAttribute('applyFont', ($pPHPExcel->getDefaultStyle()->getFont()->getHashCode() != $pStyle->getFont()->getHashCode()) ? '1' : '0');
        $objWriter->writeAttribute('applyNumberFormat', ($pPHPExcel->getDefaultStyle()->getNumberFormat()->getHashCode() != $pStyle->getNumberFormat()->getHashCode()) ? '1' : '0');
        $objWriter->writeAttribute('applyFill', ($pPHPExcel->getDefaultStyle()->getFill()->getHashCode() != $pStyle->getFill()->getHashCode()) ? '1' : '0');
        $objWriter->writeAttribute('applyBorder', ($pPHPExcel->getDefaultStyle()->getBorders()->getHashCode() != $pStyle->getBorders()->getHashCode()) ? '1' : '0');
        $objWriter->writeAttribute('applyAlignment', ($pPHPExcel->getDefaultStyle()->getAlignment()->getHashCode() != $pStyle->getAlignment()->getHashCode()) ? '1' : '0');
        if ($pStyle->getProtection()->getLocked() != PHPExcel_Style_Protection::PROTECTION_INHERIT || $pStyle->getProtection()->getHidden() != PHPExcel_Style_Protection::PROTECTION_INHERIT) {
            $objWriter->writeAttribute('applyProtection', 'true');
        }

        // alignment
        $objWriter->startElement('alignment');
        $objWriter->writeAttribute('horizontal', $pStyle->getAlignment()->getHorizontal());
        $objWriter->writeAttribute('vertical', $pStyle->getAlignment()->getVertical());

        $textRotation = 0;
        if ($pStyle->getAlignment()->getTextRotation() >= 0) {
            $textRotation = $pStyle->getAlignment()->getTextRotation();
        } elseif ($pStyle->getAlignment()->getTextRotation() < 0) {
            $textRotation = 90 - $pStyle->getAlignment()->getTextRotation();
        }
        $objWriter->writeAttribute('textRotation', $textRotation);

        $objWriter->writeAttribute('wrapText', ($pStyle->getAlignment()->getWrapText() ? 'true' : 'false'));
        $objWriter->writeAttribute('shrinkToFit', ($pStyle->getAlignment()->getShrinkToFit() ? 'true' : 'false'));

        if ($pStyle->getAlignment()->getIndent() > 0) {
            $objWriter->writeAttribute('indent', $pStyle->getAlignment()->getIndent());
        }
        if ($pStyle->getAlignment()->getReadorder() > 0) {
            $objWriter->writeAttribute('readingOrder', $pStyle->getAlignment()->getReadorder());
        }
        $objWriter->endElement();

        // protection
        if ($pStyle->getProtection()->getLocked() != PHPExcel_Style_Protection::PROTECTION_INHERIT || $pStyle->getProtection()->getHidden() != PHPExcel_Style_Protection::PROTECTION_INHERIT) {
            $objWriter->startElement('protection');
            if ($pStyle->getProtection()->getLocked() != PHPExcel_Style_Protection::PROTECTION_INHERIT) {
                $objWriter->writeAttribute('locked', ($pStyle->getProtection()->getLocked() == PHPExcel_Style_Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
            }
            if ($pStyle->getProtection()->getHidden() != PHPExcel_Style_Protection::PROTECTION_INHERIT) {
                $objWriter->writeAttribute('hidden', ($pStyle->getProtection()->getHidden() == PHPExcel_Style_Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
            }
            $objWriter->endElement();
        }

        $objWriter->endElement();
    }

    /**
     * Write Cell Style Dxf
     *
     * @param     PHPExcel_Shared_XMLWriter         $objWriter         XML Writer
     * @param     PHPExcel_Style                    $pStyle            Style
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeCellStyleDxf(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style $pStyle = null)
    {
        // dxf
        $objWriter->startElement('dxf');

        // font
        $this->writeFont($objWriter, $pStyle->getFont());

        // numFmt
        $this->writeNumFmt($objWriter, $pStyle->getNumberFormat());

        // fill
        $this->writeFill($objWriter, $pStyle->getFill());

        // alignment
        $objWriter->startElement('alignment');
        if ($pStyle->getAlignment()->getHorizontal() !== null) {
            $objWriter->writeAttribute('horizontal', $pStyle->getAlignment()->getHorizontal());
        }
        if ($pStyle->getAlignment()->getVertical() !== null) {
            $objWriter->writeAttribute('vertical', $pStyle->getAlignment()->getVertical());
        }

        if ($pStyle->getAlignment()->getTextRotation() !== null) {
            $textRotation = 0;
            if ($pStyle->getAlignment()->getTextRotation() >= 0) {
                $textRotation = $pStyle->getAlignment()->getTextRotation();
            } elseif ($pStyle->getAlignment()->getTextRotation() < 0) {
                $textRotation = 90 - $pStyle->getAlignment()->getTextRotation();
            }
            $objWriter->writeAttribute('textRotation', $textRotation);
        }
        $objWriter->endElement();

        // border
        $this->writeBorder($objWriter, $pStyle->getBorders());

        // protection
        if (($pStyle->getProtection()->getLocked() !== null) || ($pStyle->getProtection()->getHidden() !== null)) {
            if ($pStyle->getProtection()->getLocked() !== PHPExcel_Style_Protection::PROTECTION_INHERIT ||
                $pStyle->getProtection()->getHidden() !== PHPExcel_Style_Protection::PROTECTION_INHERIT) {
                $objWriter->startElement('protection');
                if (($pStyle->getProtection()->getLocked() !== null) &&
                    ($pStyle->getProtection()->getLocked() !== PHPExcel_Style_Protection::PROTECTION_INHERIT)) {
                    $objWriter->writeAttribute('locked', ($pStyle->getProtection()->getLocked() == PHPExcel_Style_Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
                }
                if (($pStyle->getProtection()->getHidden() !== null) &&
                    ($pStyle->getProtection()->getHidden() !== PHPExcel_Style_Protection::PROTECTION_INHERIT)) {
                    $objWriter->writeAttribute('hidden', ($pStyle->getProtection()->getHidden() == PHPExcel_Style_Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
                }
                $objWriter->endElement();
            }
        }

        $objWriter->endElement();
    }

    /**
     * Write BorderPr
     *
     * @param     PHPExcel_Shared_XMLWriter        $objWriter         XML Writer
     * @param     string                            $pName            Element name
     * @param     PHPExcel_Style_Border            $pBorder        Border style
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeBorderPr(PHPExcel_Shared_XMLWriter $objWriter = null, $pName = 'left', PHPExcel_Style_Border $pBorder = null)
    {
        // Write BorderPr
        if ($pBorder->getBorderStyle() != PHPExcel_Style_Border::BORDER_NONE) {
            $objWriter->startElement($pName);
            $objWriter->writeAttribute('style', $pBorder->getBorderStyle());

            // color
            $objWriter->startElement('color');
            $objWriter->writeAttribute('rgb', $pBorder->getColor()->getARGB());
            $objWriter->endElement();

            $objWriter->endElement();
        }
    }

    /**
     * Write NumberFormat
     *
     * @param     PHPExcel_Shared_XMLWriter            $objWriter         XML Writer
     * @param     PHPExcel_Style_NumberFormat            $pNumberFormat    Number Format
     * @param     int                                    $pId            Number Format identifier
     * @throws     PHPExcel_Writer_Exception
     */
    private function writeNumFmt(PHPExcel_Shared_XMLWriter $objWriter = null, PHPExcel_Style_NumberFormat $pNumberFormat = null, $pId = 0)
    {
        // Translate formatcode
        $formatCode = $pNumberFormat->getFormatCode();

        // numFmt
        if ($formatCode !== null) {
            $objWriter->startElement('numFmt');
            $objWriter->writeAttribute('numFmtId', ($pId + 164));
            $objWriter->writeAttribute('formatCode', $formatCode);
            $objWriter->endElement();
        }
    }

    /**
     * Get an array of all styles
     *
     * @param     PHPExcel                $pPHPExcel
     * @return     PHPExcel_Style[]        All styles in PHPExcel
     * @throws     PHPExcel_Writer_Exception
     */
    public function allStyles(PHPExcel $pPHPExcel = null)
    {
        return $pPHPExcel->getCellXfCollection();
    }

    /**
     * Get an array of all conditional styles
     *
     * @param     PHPExcel                            $pPHPExcel
     * @return     PHPExcel_Style_Conditional[]        All conditional styles in PHPExcel
     * @throws     PHPExcel_Writer_Exception
     */
    public function allConditionalStyles(PHPExcel $pPHPExcel = null)
    {
        // Get an array of all styles
        $aStyles = array();

        $sheetCount = $pPHPExcel->getSheetCount();
        for ($i = 0; $i < $sheetCount; ++$i) {
            foreach ($pPHPExcel->getSheet($i)->getConditionalStylesCollection() as $conditionalStyles) {
                foreach ($conditionalStyles as $conditionalStyle) {
                    $aStyles[] = $conditionalStyle;
                }
            }
        }

        return $aStyles;
    }

    /**
     * Get an array of all fills
     *
     * @param     PHPExcel                        $pPHPExcel
     * @return     PHPExcel_Style_Fill[]        All fills in PHPExcel
     * @throws     PHPExcel_Writer_Exception
     */
    public function allFills(PHPExcel $pPHPExcel = null)
    {
        // Get an array of unique fills
        $aFills = array();

        // Two first fills are predefined
        $fill0 = new PHPExcel_Style_Fill();
        $fill0->setFillType(PHPExcel_Style_Fill::FILL_NONE);
        $aFills[] = $fill0;

        $fill1 = new PHPExcel_Style_Fill();
        $fill1->setFillType(PHPExcel_Style_Fill::FILL_PATTERN_GRAY125);
        $aFills[] = $fill1;
        // The remaining fills
        $aStyles = $this->allStyles($pPHPExcel);
        foreach ($aStyles as $style) {
            if (!array_key_exists($style->getFill()->getHashCode(), $aFills)) {
                $aFills[ $style->getFill()->getHashCode() ] = $style->getFill();
            }
        }

        return $aFills;
    }

    /**
     * Get an array of all fonts
     *
     * @param     PHPExcel                        $pPHPExcel
     * @return     PHPExcel_Style_Font[]        All fonts in PHPExcel
     * @throws     PHPExcel_Writer_Exception
     */
    public function allFonts(PHPExcel $pPHPExcel = null)
    {
        // Get an array of unique fonts
        $aFonts = array();
        $aStyles = $this->allStyles($pPHPExcel);

        foreach ($aStyles as $style) {
            if (!array_key_exists($style->getFont()->getHashCode(), $aFonts)) {
                $aFonts[ $style->getFont()->getHashCode() ] = $style->getFont();
            }
        }

        return $aFonts;
    }

    /**
     * Get an array of all borders
     *
     * @param     PHPExcel                        $pPHPExcel
     * @return     PHPExcel_Style_Borders[]        All borders in PHPExcel
     * @throws     PHPExcel_Writer_Exception
     */
    public function allBorders(PHPExcel $pPHPExcel = null)
    {
        // Get an array of unique borders
        $aBorders = array();
        $aStyles = $this->allStyles($pPHPExcel);

        foreach ($aStyles as $style) {
            if (!array_key_exists($style->getBorders()->getHashCode(), $aBorders)) {
                $aBorders[ $style->getBorders()->getHashCode() ] = $style->getBorders();
            }
        }

        return $aBorders;
    }

    /**
     * Get an array of all number formats
     *
     * @param     PHPExcel                                $pPHPExcel
     * @return     PHPExcel_Style_NumberFormat[]        All number formats in PHPExcel
     * @throws     PHPExcel_Writer_Exception
     */
    public function allNumberFormats(PHPExcel $pPHPExcel = null)
    {
        // Get an array of unique number formats
        $aNumFmts = array();
        $aStyles = $this->allStyles($pPHPExcel);

        foreach ($aStyles as $style) {
            if ($style->getNumberFormat()->getBuiltInFormatCode() === false && !array_key_exists($style->getNumberFormat()->getHashCode(), $aNumFmts)) {
                $aNumFmts[ $style->getNumberFormat()->getHashCode() ] = $style->getNumberFormat();
            }
        }

        return $aNumFmts;
    }
}