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<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2013 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_Style
 * @copyright  Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license     http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt   LGPL
 * @version     ##VERSION##, ##DATE##
 */


/**
 * PHPExcel_Style_Font
 *
 * @category   PHPExcel
 * @package     PHPExcel_Style
 * @copyright  Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Style_Font extends PHPExcel_Style_Supervisor implements PHPExcel_IComparable
{
        /* Underline types */
        const UNDERLINE_NONE                                    = 'none';
        const UNDERLINE_DOUBLE                                  = 'double';
        const UNDERLINE_DOUBLEACCOUNTING                = 'doubleAccounting';
        const UNDERLINE_SINGLE                                  = 'single';
        const UNDERLINE_SINGLEACCOUNTING                = 'singleAccounting';

        /**
         * Font Name
         *
         * @var string
         */
        protected $_name                        = 'Calibri';

        /**
         * Font Size
         *
         * @var float
         */
        protected $_size                        = 11;

        /**
         * Bold
         *
         * @var boolean
         */
        protected $_bold                        = FALSE;

        /**
         * Italic
         *
         * @var boolean
         */
        protected $_italic              = FALSE;

        /**
         * Superscript
         *
         * @var boolean
         */
        protected $_superScript = FALSE;

        /**
         * Subscript
         *
         * @var boolean
         */
        protected $_subScript           = FALSE;

        /**
         * Underline
         *
         * @var string
         */
        protected $_underline           = self::UNDERLINE_NONE;

        /**
         * Strikethrough
         *
         * @var boolean
         */
        protected $_strikethrough       = FALSE;

        /**
         * Foreground color
         *
         * @var PHPExcel_Style_Color
         */
        protected $_color;

        /**
         * Create a new PHPExcel_Style_Font
         *
         * @param       boolean $isSupervisor   Flag indicating if this is a supervisor or not
         *                                                                      Leave this value at default unless you understand exactly what
         *                                                                              its ramifications are
         * @param       boolean $isConditional  Flag indicating if this is a conditional style or not
         *                                                                      Leave this value at default unless you understand exactly what
         *                                                                              its ramifications are
         */
        public function __construct($isSupervisor = FALSE, $isConditional = FALSE)
        {
                // Supervisor?
                parent::__construct($isSupervisor);

                // Initialise values
                if ($isConditional) {
                        $this->_name                    = NULL;
                        $this->_size                    = NULL;
                        $this->_bold                    = NULL;
                        $this->_italic                  = NULL;
                        $this->_superScript             = NULL;
                        $this->_subScript               = NULL;
                        $this->_underline               = NULL;
                        $this->_strikethrough   = NULL;
                        $this->_color                   = new PHPExcel_Style_Color(PHPExcel_Style_Color::COLOR_BLACK, $isSupervisor, $isConditional);
                } else {
                        $this->_color   = new PHPExcel_Style_Color(PHPExcel_Style_Color::COLOR_BLACK, $isSupervisor);
                }
                // bind parent if we are a supervisor
                if ($isSupervisor) {
                        $this->_color->bindParent($this, '_color');
                }
        }

        /**
         * Get the shared style component for the currently active cell in currently active sheet.
         * Only used for style supervisor
         *
         * @return PHPExcel_Style_Font
         */
        public function getSharedComponent()
        {
                return $this->_parent->getSharedComponent()->getFont();
        }

        /**
         * Build style array from subcomponents
         *
         * @param array $array
         * @return array
         */
        public function getStyleArray($array)
        {
                return array('font' => $array);
        }

        /**
         * Apply styles from array
         *
         * <code>
         * $objPHPExcel->getActiveSheet()->getStyle('B2')->getFont()->applyFromArray(
         *              array(
         *                      'name'          => 'Arial',
         *                      'bold'          => TRUE,
         *                      'italic'        => FALSE,
         *                      'underline' => PHPExcel_Style_Font::UNDERLINE_DOUBLE,
         *                      'strike'        => FALSE,
         *                      'color'         => array(
         *                              'rgb' => '808080'
         *                      )
         *              )
         * );
         * </code>
         *
         * @param       array   $pStyles        Array containing style information
         * @throws      PHPExcel_Exception
         * @return PHPExcel_Style_Font
         */
        public function applyFromArray($pStyles = null) {
                if (is_array($pStyles)) {
                        if ($this->_isSupervisor) {
                                $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($this->getStyleArray($pStyles));
                        } else {
                                if (array_key_exists('name', $pStyles)) {
                                        $this->setName($pStyles['name']);
                                }
                                if (array_key_exists('bold', $pStyles)) {
                                        $this->setBold($pStyles['bold']);
                                }
                                if (array_key_exists('italic', $pStyles)) {
                                        $this->setItalic($pStyles['italic']);
                                }
                                if (array_key_exists('superScript', $pStyles)) {
                                        $this->setSuperScript($pStyles['superScript']);
                                }
                                if (array_key_exists('subScript', $pStyles)) {
                                        $this->setSubScript($pStyles['subScript']);
                                }
                                if (array_key_exists('underline', $pStyles)) {
                                        $this->setUnderline($pStyles['underline']);
                                }
                                if (array_key_exists('strike', $pStyles)) {
                                        $this->setStrikethrough($pStyles['strike']);
                                }
                                if (array_key_exists('color', $pStyles)) {
                                        $this->getColor()->applyFromArray($pStyles['color']);
                                }
                                if (array_key_exists('size', $pStyles)) {
                                        $this->setSize($pStyles['size']);
                                }
                        }
                } else {
                        throw new PHPExcel_Exception("Invalid style array passed.");
                }
                return $this;
        }

        /**
         * Get Name
         *
         * @return string
         */
        public function getName() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getName();
                }
                return $this->_name;
        }

        /**
         * Set Name
         *
         * @param string $pValue
         * @return PHPExcel_Style_Font
         */
        public function setName($pValue = 'Calibri') {
                if ($pValue == '') {
                        $pValue = 'Calibri';
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('name' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_name = $pValue;
                }
                return $this;
        }

        /**
         * Get Size
         *
         * @return double
         */
        public function getSize() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getSize();
                }
                return $this->_size;
        }

        /**
         * Set Size
         *
         * @param double $pValue
         * @return PHPExcel_Style_Font
         */
        public function setSize($pValue = 10) {
                if ($pValue == '') {
                        $pValue = 10;
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('size' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_size = $pValue;
                }
                return $this;
        }

        /**
         * Get Bold
         *
         * @return boolean
         */
        public function getBold() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getBold();
                }
                return $this->_bold;
        }

        /**
         * Set Bold
         *
         * @param boolean $pValue
         * @return PHPExcel_Style_Font
         */
        public function setBold($pValue = false) {
                if ($pValue == '') {
                        $pValue = false;
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('bold' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_bold = $pValue;
                }
                return $this;
        }

        /**
         * Get Italic
         *
         * @return boolean
         */
        public function getItalic() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getItalic();
                }
                return $this->_italic;
        }

        /**
         * Set Italic
         *
         * @param boolean $pValue
         * @return PHPExcel_Style_Font
         */
        public function setItalic($pValue = false) {
                if ($pValue == '') {
                        $pValue = false;
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('italic' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_italic = $pValue;
                }
                return $this;
        }

        /**
         * Get SuperScript
         *
         * @return boolean
         */
        public function getSuperScript() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getSuperScript();
                }
                return $this->_superScript;
        }

        /**
         * Set SuperScript
         *
         * @param boolean $pValue
         * @return PHPExcel_Style_Font
         */
        public function setSuperScript($pValue = false) {
                if ($pValue == '') {
                        $pValue = false;
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('superScript' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_superScript = $pValue;
                        $this->_subScript = !$pValue;
                }
                return $this;
        }

                /**
         * Get SubScript
         *
         * @return boolean
         */
        public function getSubScript() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getSubScript();
                }
                return $this->_subScript;
        }

        /**
         * Set SubScript
         *
         * @param boolean $pValue
         * @return PHPExcel_Style_Font
         */
        public function setSubScript($pValue = false) {
                if ($pValue == '') {
                        $pValue = false;
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('subScript' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_subScript = $pValue;
                        $this->_superScript = !$pValue;
                }
                return $this;
        }

        /**
         * Get Underline
         *
         * @return string
         */
        public function getUnderline() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getUnderline();
                }
                return $this->_underline;
        }

        /**
         * Set Underline
         *
         * @param string|boolean $pValue        PHPExcel_Style_Font underline type
         *                                                                      If a boolean is passed, then TRUE equates to UNDERLINE_SINGLE,
         *                                                                              false equates to UNDERLINE_NONE
         * @return PHPExcel_Style_Font
         */
        public function setUnderline($pValue = self::UNDERLINE_NONE) {
                if (is_bool($pValue)) {
                        $pValue = ($pValue) ? self::UNDERLINE_SINGLE : self::UNDERLINE_NONE;
                } elseif ($pValue == '') {
                        $pValue = self::UNDERLINE_NONE;
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('underline' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_underline = $pValue;
                }
                return $this;
        }

        /**
         * Get Strikethrough
         *
         * @return boolean
         */
        public function getStrikethrough() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getStrikethrough();
                }
                return $this->_strikethrough;
        }

        /**
         * Set Strikethrough
         *
         * @param boolean $pValue
         * @return PHPExcel_Style_Font
         */
        public function setStrikethrough($pValue = false) {
                if ($pValue == '') {
                        $pValue = false;
                }
                if ($this->_isSupervisor) {
                        $styleArray = $this->getStyleArray(array('strike' => $pValue));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_strikethrough = $pValue;
                }
                return $this;
        }

        /**
         * Get Color
         *
         * @return PHPExcel_Style_Color
         */
        public function getColor() {
                return $this->_color;
        }

        /**
         * Set Color
         *
         * @param       PHPExcel_Style_Color $pValue
         * @throws      PHPExcel_Exception
         * @return PHPExcel_Style_Font
         */
        public function setColor(PHPExcel_Style_Color $pValue = null) {
                // make sure parameter is a real color and not a supervisor
                $color = $pValue->getIsSupervisor() ? $pValue->getSharedComponent() : $pValue;

                if ($this->_isSupervisor) {
                        $styleArray = $this->getColor()->getStyleArray(array('argb' => $color->getARGB()));
                        $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
                } else {
                        $this->_color = $color;
                }
                return $this;
        }

        /**
         * Get hash code
         *
         * @return string       Hash code
         */
        public function getHashCode() {
                if ($this->_isSupervisor) {
                        return $this->getSharedComponent()->getHashCode();
                }
                return md5(
                          $this->_name
                        . $this->_size
                        . ($this->_bold ? 't' : 'f')
                        . ($this->_italic ? 't' : 'f')
                        . ($this->_superScript ? 't' : 'f')
                        . ($this->_subScript ? 't' : 'f')
                        . $this->_underline
                        . ($this->_strikethrough ? 't' : 'f')
                        . $this->_color->getHashCode()
                        . __CLASS__
                );
        }

}