<?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_Style
 * @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_Style_Borders
 *
 * @category   PHPExcel
 * @package    PHPExcel_Style
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Style_Borders extends PHPExcel_Style_Supervisor implements PHPExcel_IComparable {
    /* Diagonal directions */

    const DIAGONAL_NONE = 0;
    const DIAGONAL_UP = 1;
    const DIAGONAL_DOWN = 2;
    const DIAGONAL_BOTH = 3;

    /**
     * Left
     *
     * @var PHPExcel_Style_Border
     */
    protected $_left;

    /**
     * Right
     *
     * @var PHPExcel_Style_Border
     */
    protected $_right;

    /**
     * Top
     *
     * @var PHPExcel_Style_Border
     */
    protected $_top;

    /**
     * Bottom
     *
     * @var PHPExcel_Style_Border
     */
    protected $_bottom;

    /**
     * Diagonal
     *
     * @var PHPExcel_Style_Border
     */
    protected $_diagonal;

    /**
     * DiagonalDirection
     *
     * @var int
     */
    protected $_diagonalDirection;

    /**
     * All borders psedo-border. Only applies to supervisor.
     *
     * @var PHPExcel_Style_Border
     */
    protected $_allBorders;

    /**
     * Outline psedo-border. Only applies to supervisor.
     *
     * @var PHPExcel_Style_Border
     */
    protected $_outline;

    /**
     * Inside psedo-border. Only applies to supervisor.
     *
     * @var PHPExcel_Style_Border
     */
    protected $_inside;

    /**
     * Vertical pseudo-border. Only applies to supervisor.
     *
     * @var PHPExcel_Style_Border
     */
    protected $_vertical;

    /**
     * Horizontal pseudo-border. Only applies to supervisor.
     *
     * @var PHPExcel_Style_Border
     */
    protected $_horizontal;

    /**
     * Create a new PHPExcel_Style_Borders
     *
     * @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
        $this->_left = new PHPExcel_Style_Border($isSupervisor, $isConditional);
        $this->_right = new PHPExcel_Style_Border($isSupervisor, $isConditional);
        $this->_top = new PHPExcel_Style_Border($isSupervisor, $isConditional);
        $this->_bottom = new PHPExcel_Style_Border($isSupervisor, $isConditional);
        $this->_diagonal = new PHPExcel_Style_Border($isSupervisor, $isConditional);
        $this->_diagonalDirection = PHPExcel_Style_Borders::DIAGONAL_NONE;

        // Specially for supervisor
        if ($isSupervisor) {
            // Initialize pseudo-borders
            $this->_allBorders = new PHPExcel_Style_Border(TRUE);
            $this->_outline = new PHPExcel_Style_Border(TRUE);
            $this->_inside = new PHPExcel_Style_Border(TRUE);
            $this->_vertical = new PHPExcel_Style_Border(TRUE);
            $this->_horizontal = new PHPExcel_Style_Border(TRUE);

            // bind parent if we are a supervisor
            $this->_left->bindParent($this, '_left');
            $this->_right->bindParent($this, '_right');
            $this->_top->bindParent($this, '_top');
            $this->_bottom->bindParent($this, '_bottom');
            $this->_diagonal->bindParent($this, '_diagonal');
            $this->_allBorders->bindParent($this, '_allBorders');
            $this->_outline->bindParent($this, '_outline');
            $this->_inside->bindParent($this, '_inside');
            $this->_vertical->bindParent($this, '_vertical');
            $this->_horizontal->bindParent($this, '_horizontal');
        }
    }

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

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

    /**
     * Apply styles from array
     *
     * <code>
     * $objPHPExcel->getActiveSheet()->getStyle('B2')->getBorders()->applyFromArray(
     * 		array(
     * 			'bottom'     => array(
     * 				'style' => PHPExcel_Style_Border::BORDER_DASHDOT,
     * 				'color' => array(
     * 					'rgb' => '808080'
     * 				)
     * 			),
     * 			'top'     => array(
     * 				'style' => PHPExcel_Style_Border::BORDER_DASHDOT,
     * 				'color' => array(
     * 					'rgb' => '808080'
     * 				)
     * 			)
     * 		)
     * );
     * </code>
     * <code>
     * $objPHPExcel->getActiveSheet()->getStyle('B2')->getBorders()->applyFromArray(
     * 		array(
     * 			'allborders' => array(
     * 				'style' => PHPExcel_Style_Border::BORDER_DASHDOT,
     * 				'color' => array(
     * 					'rgb' => '808080'
     * 				)
     * 			)
     * 		)
     * );
     * </code>
     *
     * @param	array	$pStyles	Array containing style information
     * @throws	PHPExcel_Exception
     * @return PHPExcel_Style_Borders
     */
    public function applyFromArray($pStyles = null) {
        if (is_array($pStyles)) {
            if ($this->_isSupervisor) {
                $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($this->getStyleArray($pStyles));
            } else {
                if (array_key_exists('left', $pStyles)) {
                    $this->getLeft()->applyFromArray($pStyles['left']);
                }
                if (array_key_exists('right', $pStyles)) {
                    $this->getRight()->applyFromArray($pStyles['right']);
                }
                if (array_key_exists('top', $pStyles)) {
                    $this->getTop()->applyFromArray($pStyles['top']);
                }
                if (array_key_exists('bottom', $pStyles)) {
                    $this->getBottom()->applyFromArray($pStyles['bottom']);
                }
                if (array_key_exists('diagonal', $pStyles)) {
                    $this->getDiagonal()->applyFromArray($pStyles['diagonal']);
                }
                if (array_key_exists('diagonaldirection', $pStyles)) {
                    $this->setDiagonalDirection($pStyles['diagonaldirection']);
                }
                if (array_key_exists('allborders', $pStyles)) {
                    $this->getLeft()->applyFromArray($pStyles['allborders']);
                    $this->getRight()->applyFromArray($pStyles['allborders']);
                    $this->getTop()->applyFromArray($pStyles['allborders']);
                    $this->getBottom()->applyFromArray($pStyles['allborders']);
                }
            }
        } else {
            throw new PHPExcel_Exception("Invalid style array passed.");
        }
        return $this;
    }

    /**
     * Get Left
     *
     * @return PHPExcel_Style_Border
     */
    public function getLeft() {
        return $this->_left;
    }

    /**
     * Get Right
     *
     * @return PHPExcel_Style_Border
     */
    public function getRight() {
        return $this->_right;
    }

    /**
     * Get Top
     *
     * @return PHPExcel_Style_Border
     */
    public function getTop() {
        return $this->_top;
    }

    /**
     * Get Bottom
     *
     * @return PHPExcel_Style_Border
     */
    public function getBottom() {
        return $this->_bottom;
    }

    /**
     * Get Diagonal
     *
     * @return PHPExcel_Style_Border
     */
    public function getDiagonal() {
        return $this->_diagonal;
    }

    /**
     * Get AllBorders (pseudo-border). Only applies to supervisor.
     *
     * @return PHPExcel_Style_Border
     * @throws PHPExcel_Exception
     */
    public function getAllBorders() {
        if (!$this->_isSupervisor) {
            throw new PHPExcel_Exception('Can only get pseudo-border for supervisor.');
        }
        return $this->_allBorders;
    }

    /**
     * Get Outline (pseudo-border). Only applies to supervisor.
     *
     * @return boolean
     * @throws PHPExcel_Exception
     */
    public function getOutline() {
        if (!$this->_isSupervisor) {
            throw new PHPExcel_Exception('Can only get pseudo-border for supervisor.');
        }
        return $this->_outline;
    }

    /**
     * Get Inside (pseudo-border). Only applies to supervisor.
     *
     * @return boolean
     * @throws PHPExcel_Exception
     */
    public function getInside() {
        if (!$this->_isSupervisor) {
            throw new PHPExcel_Exception('Can only get pseudo-border for supervisor.');
        }
        return $this->_inside;
    }

    /**
     * Get Vertical (pseudo-border). Only applies to supervisor.
     *
     * @return PHPExcel_Style_Border
     * @throws PHPExcel_Exception
     */
    public function getVertical() {
        if (!$this->_isSupervisor) {
            throw new PHPExcel_Exception('Can only get pseudo-border for supervisor.');
        }
        return $this->_vertical;
    }

    /**
     * Get Horizontal (pseudo-border). Only applies to supervisor.
     *
     * @return PHPExcel_Style_Border
     * @throws PHPExcel_Exception
     */
    public function getHorizontal() {
        if (!$this->_isSupervisor) {
            throw new PHPExcel_Exception('Can only get pseudo-border for supervisor.');
        }
        return $this->_horizontal;
    }

    /**
     * Get DiagonalDirection
     *
     * @return int
     */
    public function getDiagonalDirection() {
        if ($this->_isSupervisor) {
            return $this->getSharedComponent()->getDiagonalDirection();
        }
        return $this->_diagonalDirection;
    }

    /**
     * Set DiagonalDirection
     *
     * @param int $pValue
     * @return PHPExcel_Style_Borders
     */
    public function setDiagonalDirection($pValue = PHPExcel_Style_Borders::DIAGONAL_NONE) {
        if ($pValue == '') {
            $pValue = PHPExcel_Style_Borders::DIAGONAL_NONE;
        }
        if ($this->_isSupervisor) {
            $styleArray = $this->getStyleArray(array('diagonaldirection' => $pValue));
            $this->getActiveSheet()->getStyle($this->getSelectedCells())->applyFromArray($styleArray);
        } else {
            $this->_diagonalDirection = $pValue;
        }
        return $this;
    }

    /**
     * Get hash code
     *
     * @return string	Hash code
     */
    public function getHashCode() {
        if ($this->_isSupervisor) {
            return $this->getSharedComponent()->getHashcode();
        }
        return md5(
                $this->getLeft()->getHashCode()
                . $this->getRight()->getHashCode()
                . $this->getTop()->getHashCode()
                . $this->getBottom()->getHashCode()
                . $this->getDiagonal()->getHashCode()
                . $this->getDiagonalDirection()
                . __CLASS__
        );
    }

}
