<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2011 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_Excel5
 * @copyright  Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    1.7.6, 2011-02-27
 */

// Original file header of PEAR::Spreadsheet_Excel_Writer_Format (used as the base for this class):
// -----------------------------------------------------------------------------------------
// /*
// *  Module written/ported by Xavier Noguer <xnoguer@rezebra.com>
// *
// *  The majority of this is _NOT_ my code.  I simply ported it from the
// *  PERL Spreadsheet::WriteExcel module.
// *
// *  The author of the Spreadsheet::WriteExcel module is John McNamara
// *  <jmcnamara@cpan.org>
// *
// *  I _DO_ maintain this code, and John McNamara has nothing to do with the
// *  porting of this code to PHP.  Any questions directly related to this
// *  class library should be directed to me.
// *
// *  License Information:
// *
// *    Spreadsheet_Excel_Writer:  A library for generating Excel Spreadsheets
// *    Copyright (c) 2002-2003 Xavier Noguer xnoguer@rezebra.com
// *
// *    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
// */


/**
 * PHPExcel_Writer_Excel5_Xf
 *
 * @category   PHPExcel
 * @package    PHPExcel_Writer_Excel5
 * @copyright  Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Writer_Excel5_Xf
{
	/**
	 * BIFF version
	 *
	 * @var int
	 */
	private $_BIFFVersion;

    /**
	 * Style XF or a cell XF ?
	 *
	 * @var boolean
	 */
	private $_isStyleXf;

	/**
	 * Index to the FONT record. Index 4 does not exist
	 * @var integer
	 */
	private $_fontIndex;

	/**
	 * An index (2 bytes) to a FORMAT record (number format).
	 * @var integer
	 */
	public $_numberFormatIndex;

	/**
	 * 1 bit, apparently not used.
	 * @var integer
	 */
	public $_text_justlast;

	/**
	 * The cell's foreground color.
	 * @var integer
	 */
	public $_fg_color;

	/**
	 * The cell's background color.
	 * @var integer
	 */
	public $_bg_color;

	/**
	 * Color of the bottom border of the cell.
	 * @var integer
	 */
	public $_bottom_color;

	/**
	 * Color of the top border of the cell.
	 * @var integer
	 */
	public $_top_color;

	/**
	* Color of the left border of the cell.
	* @var integer
	*/
	public $_left_color;

	/**
	 * Color of the right border of the cell.
	 * @var integer
	 */
	public $_right_color;

	/**
	 * Constructor
	 *
	 * @access private
	 * @param integer $index the XF index for the format.
	 * @param PHPExcel_Style
	 */
	public function __construct(PHPExcel_Style $style = null)
	{
		$this->_isStyleXf =     false;
		$this->_BIFFVersion   = 0x0600;
		$this->_fontIndex      = 0;

		$this->_numberFormatIndex     = 0;

		$this->_text_justlast  = 0;

		$this->_fg_color       = 0x40;
		$this->_bg_color       = 0x41;

		$this->_diag           = 0;

		$this->_bottom_color   = 0x40;
		$this->_top_color      = 0x40;
		$this->_left_color     = 0x40;
		$this->_right_color    = 0x40;
		$this->_diag_color     = 0x40;
		$this->_style = $style;

	}


	/**
	 * Generate an Excel BIFF XF record (style or cell).
	 *
	 * @param string $style The type of the XF record ('style' or 'cell').
	 * @return string The XF record
	 */
	function writeXf()
	{
		// Set the type of the XF record and some of the attributes.
		if ($this->_isStyleXf) {
			$style = 0xFFF5;
		} else {
			$style   = $this->_mapLocked($this->_style->getProtection()->getLocked());
			$style  |= $this->_mapHidden($this->_style->getProtection()->getHidden()) << 1;
		}

		// Flags to indicate if attributes have been set.
		$atr_num     = ($this->_numberFormatIndex != 0)?1:0;
		$atr_fnt     = ($this->_fontIndex != 0)?1:0;
		$atr_alc     = ((int) $this->_style->getAlignment()->getWrapText())?1:0;
		$atr_bdr     = ($this->_mapBorderStyle($this->_style->getBorders()->getBottom()->getBorderStyle())   ||
						$this->_mapBorderStyle($this->_style->getBorders()->getTop()->getBorderStyle())      ||
						$this->_mapBorderStyle($this->_style->getBorders()->getLeft()->getBorderStyle())     ||
						$this->_mapBorderStyle($this->_style->getBorders()->getRight()->getBorderStyle()))?1:0;
		$atr_pat     = (($this->_fg_color != 0x40) ||
						($this->_bg_color != 0x41) ||
						$this->_mapFillType($this->_style->getFill()->getFillType()))?1:0;
		$atr_prot    = $this->_mapLocked($this->_style->getProtection()->getLocked())
						| $this->_mapHidden($this->_style->getProtection()->getHidden());

		// Zero the default border colour if the border has not been set.
		if ($this->_mapBorderStyle($this->_style->getBorders()->getBottom()->getBorderStyle()) == 0) {
			$this->_bottom_color = 0;
		}
		if ($this->_mapBorderStyle($this->_style->getBorders()->getTop()->getBorderStyle())  == 0) {
			$this->_top_color = 0;
		}
		if ($this->_mapBorderStyle($this->_style->getBorders()->getRight()->getBorderStyle()) == 0) {
			$this->_right_color = 0;
		}
		if ($this->_mapBorderStyle($this->_style->getBorders()->getLeft()->getBorderStyle()) == 0) {
			$this->_left_color = 0;
		}
		if ($this->_mapBorderStyle($this->_style->getBorders()->getDiagonal()->getBorderStyle()) == 0) {
			$this->_diag_color = 0;
		}

		$record         = 0x00E0;              // Record identifier
		if ($this->_BIFFVersion == 0x0500) {
			$length         = 0x0010;              // Number of bytes to follow
		}
		if ($this->_BIFFVersion == 0x0600) {
			$length         = 0x0014;
		}

		$ifnt           = $this->_fontIndex;   // Index to FONT record
		$ifmt           = $this->_numberFormatIndex;  // Index to FORMAT record
		if ($this->_BIFFVersion == 0x0500) {
			$align          = $this->_mapHAlign($this->_style->getAlignment()->getHorizontal());       // Alignment
			$align         |= (int) $this->_style->getAlignment()->getWrapText()     << 3;
			$align         |= $this->_mapVAlign($this->_style->getAlignment()->getVertical())  << 4;
			$align         |= $this->_text_justlast << 7;
			$align         |= 0                       << 8; // rotation
			$align         |= $atr_num                << 10;
			$align         |= $atr_fnt                << 11;
			$align         |= $atr_alc                << 12;
			$align         |= $atr_bdr                << 13;
			$align         |= $atr_pat                << 14;
			$align         |= $atr_prot               << 15;

			$icv            = $this->_fg_color;       // fg and bg pattern colors
			$icv           |= $this->_bg_color      << 7;

			$fill           = $this->_mapFillType($this->_style->getFill()->getFillType());        // Fill and border line style
			$fill          |= $this->_mapBorderStyle($this->_style->getBorders()->getBottom()->getBorderStyle())        << 6;
			$fill          |= $this->_bottom_color  << 9;

			$border1        = $this->_mapBorderStyle($this->_style->getBorders()->getTop()->getBorderStyle());            // Border line style and color
			$border1       |= $this->_mapBorderStyle($this->_style->getBorders()->getLeft()->getBorderStyle())          << 3;
			$border1       |= $this->_mapBorderStyle($this->_style->getBorders()->getRight()->getBorderStyle())         << 6;
			$border1       |= $this->_top_color     << 9;

			$border2        = $this->_left_color;     // Border color
			$border2       |= $this->_right_color   << 7;

			$header      = pack("vv",       $record, $length);
			$data        = pack("vvvvvvvv", $ifnt, $ifmt, $style, $align,
											$icv, $fill,
											$border1, $border2);
		} elseif ($this->_BIFFVersion == 0x0600) {
			$align          = $this->_mapHAlign($this->_style->getAlignment()->getHorizontal());       // Alignment
			$align         |= (int) $this->_style->getAlignment()->getWrapText()     << 3;
			$align         |= $this->_mapVAlign($this->_style->getAlignment()->getVertical())  << 4;
			$align         |= $this->_text_justlast << 7;

			$used_attrib    = $atr_num              << 2;
			$used_attrib   |= $atr_fnt              << 3;
			$used_attrib   |= $atr_alc              << 4;
			$used_attrib   |= $atr_bdr              << 5;
			$used_attrib   |= $atr_pat              << 6;
			$used_attrib   |= $atr_prot             << 7;

			$icv            = $this->_fg_color;      // fg and bg pattern colors
			$icv           |= $this->_bg_color      << 7;

			$border1        = $this->_mapBorderStyle($this->_style->getBorders()->getLeft()->getBorderStyle());          // Border line style and color
			$border1       |= $this->_mapBorderStyle($this->_style->getBorders()->getRight()->getBorderStyle())         << 4;
			$border1       |= $this->_mapBorderStyle($this->_style->getBorders()->getTop()->getBorderStyle())           << 8;
			$border1       |= $this->_mapBorderStyle($this->_style->getBorders()->getBottom()->getBorderStyle())        << 12;
			$border1       |= $this->_left_color    << 16;
			$border1       |= $this->_right_color   << 23;

			$diagonalDirection = $this->_style->getBorders()->getDiagonalDirection();
			$diag_tl_to_rb = $diagonalDirection == PHPExcel_Style_Borders::DIAGONAL_BOTH
								|| $diagonalDirection == PHPExcel_Style_Borders::DIAGONAL_DOWN;
			$diag_tr_to_lb = $diagonalDirection == PHPExcel_Style_Borders::DIAGONAL_BOTH
								|| $diagonalDirection == PHPExcel_Style_Borders::DIAGONAL_UP;
			$border1       |= $diag_tl_to_rb        << 30;
			$border1       |= $diag_tr_to_lb        << 31;

			$border2        = $this->_top_color;    // Border color
			$border2       |= $this->_bottom_color   << 7;
			$border2       |= $this->_diag_color     << 14;
			$border2       |= $this->_mapBorderStyle($this->_style->getBorders()->getDiagonal()->getBorderStyle())           << 21;
			$border2       |= $this->_mapFillType($this->_style->getFill()->getFillType())        << 26;

			$header      = pack("vv",       $record, $length);

			//BIFF8 options: identation, shrinkToFit and  text direction
			$biff8_options  = $this->_style->getAlignment()->getIndent();
			$biff8_options |= (int) $this->_style->getAlignment()->getShrinkToFit() << 4;

			$data  = pack("vvvC", $ifnt, $ifmt, $style, $align);
			$data .= pack("CCC"
				, $this->_mapTextRotation($this->_style->getAlignment()->getTextRotation())
				, $biff8_options
				, $used_attrib
				);
			$data .= pack("VVv", $border1, $border2, $icv);
		}

		return($header . $data);
	}

	/**
	 * Set BIFF version
	 *
	 * @param int $BIFFVersion
	 */
	public function setBIFFVersion($BIFFVersion)
	{
		$this->_BIFFVersion = $BIFFVersion;
	}

	/**
	 * Is this a style XF ?
	 *
	 * @param boolean $value
	 */
	public function setIsStyleXf($value)
	{
		$this->_isStyleXf = $value;
	}

	/**
	 * Sets the cell's bottom border color
	 *
	 * @access public
	 * @param int $colorIndex Color index
	 */
	function setBottomColor($colorIndex)
	{
		$this->_bottom_color = $colorIndex;
	}

	/**
	 * Sets the cell's top border color
	 *
	 * @access public
	 * @param int $colorIndex Color index
	 */
	function setTopColor($colorIndex)
	{
		$this->_top_color = $colorIndex;
	}

	/**
	 * Sets the cell's left border color
	 *
	 * @access public
	 * @param int $colorIndex Color index
	 */
	function setLeftColor($colorIndex)
	{
		$this->_left_color = $colorIndex;
	}

	/**
	 * Sets the cell's right border color
	 *
	 * @access public
	 * @param int $colorIndex Color index
	 */
	function setRightColor($colorIndex)
	{
		$this->_right_color = $colorIndex;
	}

	/**
	 * Sets the cell's diagonal border color
	 *
	 * @access public
	 * @param int $colorIndex Color index
	 */
	function setDiagColor($colorIndex)
	{
		$this->_diag_color = $colorIndex;
	}


	/**
	 * Sets the cell's foreground color
	 *
	 * @access public
	 * @param int $colorIndex Color index
	 */
	function setFgColor($colorIndex)
	{
		$this->_fg_color = $colorIndex;
	}

	/**
	 * Sets the cell's background color
	 *
	 * @access public
	 * @param int $colorIndex Color index
	 */
	function setBgColor($colorIndex)
	{
		$this->_bg_color = $colorIndex;
	}

	/**
	 * Sets the index to the number format record
	 * It can be date, time, currency, etc...
	 *
	 * @access public
	 * @param integer $numberFormatIndex Index to format record
	 */
	function setNumberFormatIndex($numberFormatIndex)
	{
		$this->_numberFormatIndex = $numberFormatIndex;
	}

	/**
	 * Set the font index.
	 *
	 * @param int $value Font index, note that value 4 does not exist
	 */
	public function setFontIndex($value)
	{
		$this->_fontIndex = $value;
	}

	/**
	 * Map border style
	 */
	private function _mapBorderStyle($borderStyle) {
		switch ($borderStyle) {
			case PHPExcel_Style_Border::BORDER_NONE:				return 0x00;
			case PHPExcel_Style_Border::BORDER_THIN;				return 0x01;
			case PHPExcel_Style_Border::BORDER_MEDIUM;				return 0x02;
			case PHPExcel_Style_Border::BORDER_DASHED;				return 0x03;
			case PHPExcel_Style_Border::BORDER_DOTTED;				return 0x04;
			case PHPExcel_Style_Border::BORDER_THICK;				return 0x05;
			case PHPExcel_Style_Border::BORDER_DOUBLE;				return 0x06;
			case PHPExcel_Style_Border::BORDER_HAIR;				return 0x07;
			case PHPExcel_Style_Border::BORDER_MEDIUMDASHED;		return 0x08;
			case PHPExcel_Style_Border::BORDER_DASHDOT;				return 0x09;
			case PHPExcel_Style_Border::BORDER_MEDIUMDASHDOT;		return 0x0A;
			case PHPExcel_Style_Border::BORDER_DASHDOTDOT;			return 0x0B;
			case PHPExcel_Style_Border::BORDER_MEDIUMDASHDOTDOT;	return 0x0C;
			case PHPExcel_Style_Border::BORDER_SLANTDASHDOT;		return 0x0D;
			default:												return 0x00;
		}
	}

	/**
	 * Map fill type
	 */
	private function _mapFillType($fillType) {
		switch ($fillType) {
			case PHPExcel_Style_Fill::FILL_NONE:					return 0x00;
			case PHPExcel_Style_Fill::FILL_SOLID:					return 0x01;
			case PHPExcel_Style_Fill::FILL_PATTERN_MEDIUMGRAY:		return 0x02;
			case PHPExcel_Style_Fill::FILL_PATTERN_DARKGRAY:		return 0x03;
			case PHPExcel_Style_Fill::FILL_PATTERN_LIGHTGRAY:		return 0x04;
			case PHPExcel_Style_Fill::FILL_PATTERN_DARKHORIZONTAL:	return 0x05;
			case PHPExcel_Style_Fill::FILL_PATTERN_DARKVERTICAL:	return 0x06;
			case PHPExcel_Style_Fill::FILL_PATTERN_DARKDOWN:		return 0x07;
			case PHPExcel_Style_Fill::FILL_PATTERN_DARKUP:			return 0x08;
			case PHPExcel_Style_Fill::FILL_PATTERN_DARKGRID:		return 0x09;
			case PHPExcel_Style_Fill::FILL_PATTERN_DARKTRELLIS:		return 0x0A;
			case PHPExcel_Style_Fill::FILL_PATTERN_LIGHTHORIZONTAL:	return 0x0B;
			case PHPExcel_Style_Fill::FILL_PATTERN_LIGHTVERTICAL:	return 0x0C;
			case PHPExcel_Style_Fill::FILL_PATTERN_LIGHTDOWN:		return 0x0D;
			case PHPExcel_Style_Fill::FILL_PATTERN_LIGHTUP:			return 0x0E;
			case PHPExcel_Style_Fill::FILL_PATTERN_LIGHTGRID:		return 0x0F;
			case PHPExcel_Style_Fill::FILL_PATTERN_LIGHTTRELLIS:	return 0x10;
			case PHPExcel_Style_Fill::FILL_PATTERN_GRAY125:			return 0x11;
			case PHPExcel_Style_Fill::FILL_PATTERN_GRAY0625:		return 0x12;
			case PHPExcel_Style_Fill::FILL_GRADIENT_LINEAR:		// does not exist in BIFF8
			case PHPExcel_Style_Fill::FILL_GRADIENT_PATH:		// does not exist in BIFF8
			default:												return 0x00;
		}
	}

	/**
	 * Map to BIFF2-BIFF8 codes for horizontal alignment
	 *
	 * @param string $hAlign
	 * @return int
	 */
	private function _mapHAlign($hAlign)
	{
		switch ($hAlign) {
			case PHPExcel_Style_Alignment::HORIZONTAL_GENERAL:				return 0;
			case PHPExcel_Style_Alignment::HORIZONTAL_LEFT:					return 1;
			case PHPExcel_Style_Alignment::HORIZONTAL_CENTER:				return 2;
			case PHPExcel_Style_Alignment::HORIZONTAL_RIGHT:				return 3;
			case PHPExcel_Style_Alignment::HORIZONTAL_JUSTIFY:				return 5;
			case PHPExcel_Style_Alignment::HORIZONTAL_CENTER_CONTINUOUS:	return 6;
			default:														return 0;
		}
	}

	/**
	 * Map to BIFF2-BIFF8 codes for vertical alignment
	 *
	 * @param string $vAlign
	 * @return int
	 */
	private function _mapVAlign($vAlign) {
		switch ($vAlign) {
			case PHPExcel_Style_Alignment::VERTICAL_TOP:		return 0;
			case PHPExcel_Style_Alignment::VERTICAL_CENTER:		return 1;
			case PHPExcel_Style_Alignment::VERTICAL_BOTTOM:		return 2;
			case PHPExcel_Style_Alignment::VERTICAL_JUSTIFY:	return 3;
			default:											return 2;
		}
	}

	/**
	 * Map to BIFF8 codes for text rotation angle
	 *
	 * @param int $textRotation
	 * @return int
	 */
	private function _mapTextRotation($textRotation) {
		if ($textRotation >= 0) {
			return $textRotation;
		}
		if ($textRotation == -165) {
			return 255;
		}
		if ($textRotation < 0) {
			return 90 - $textRotation;
		}
	}

	/**
	 * Map locked
	 *
	 * @param string
	 * @return int
	 */
	private function _mapLocked($locked) {
		switch ($locked) {
			case PHPExcel_Style_Protection::PROTECTION_INHERIT:		return 1;
			case PHPExcel_Style_Protection::PROTECTION_PROTECTED:	return 1;
			case PHPExcel_Style_Protection::PROTECTION_UNPROTECTED:	return 0;
			default:												return 1;
		}
	}

	/**
	 * Map hidden
	 *
	 * @param string
	 * @return int
	 */
	private function _mapHidden($hidden) {
		switch ($hidden) {
			case PHPExcel_Style_Protection::PROTECTION_INHERIT:		return 0;
			case PHPExcel_Style_Protection::PROTECTION_PROTECTED:	return 1;
			case PHPExcel_Style_Protection::PROTECTION_UNPROTECTED:	return 0;
			default:												return 0;
		}
	}

}