Grido\Components\Paginator

Complexity

Total Complexity

14

Size/Duplication

Total Lines	120
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

100%

Importance

Changes	2
Bugs	0	Features	0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	setGrid()	0	5	1
A	setStepRange()	0	5	1
A	setStepCount()	0	5	1
A	getPage()	0	8	2
A	getSteps()	0	20	3
A	getCountBegin()	0	8	3
A	getCountEnd()	0	10	3

<?php

/**
 * This file is part of the Grido (http://grido.bugyik.cz)
 *
 * Copyright (c) 2011 Petr Bugyík (http://petr.bugyik.cz)
 *
 * For the full copyright and license information, please view
 * the file LICENSE.md that was distributed with this source code.
 */

namespace Grido\Components;

/**
 * Paginating grid.
 *
 * @package     Grido
 * @subpackage  Components
 * @author      Petr Bugyík
 *
 * @property-read int $page
 * @property-read array $steps
 * @property-read int $countEnd
 * @property-read int $countBegin
 * @property-write \Grido\Grid $grid
 */
class Paginator extends \Nette\Utils\Paginator
{
    const DEFAULT_STEP_COUNT = 4;
    const DEFAULT_STEP_RANGE = 3;

    /** @var int */
    protected $page;

    /** @var array */
    protected $steps = [];

    /** @var int */
    protected $countBegin;

    /** @var int */
    protected $countEnd;

    /** @var \Grido\Grid */
    protected $grid;

    /** @var int */
    private $stepCount = self::DEFAULT_STEP_COUNT;

    /** @var int */
    private $stepRange = self::DEFAULT_STEP_RANGE;

    /**
     * @param \Grido\Grid $grid
     * @return Paginator
     */
    public function setGrid(\Grido\Grid $grid)
    {
        $this->grid = $grid;
        return $this;
    }

    /**
     * @param int $stepRange
     * @return Paginator
     */
    public function setStepRange($stepRange)
    {
        $this->stepRange = $stepRange;
        return $this;
    }

    /**
     * @param int $stepCount
     * @return Paginator
     */
    public function setStepCount($stepCount)
    {
        $this->stepCount = (int) $stepCount;
        return $this;
    }

    /**********************************************************************************************/

    /**
     * @return int
     */
    public function getPage()
    {
        if ($this->page === NULL) {
            $this->page = parent::getPage();
        }

        return $this->page;
    }

    /**
     * @return array
     */
    public function getSteps()
    {
        if (empty($this->steps)) {
            $arr = range(
                max($this->getFirstPage(), $this->getPage() - $this->stepRange),
                min($this->getLastPage(), $this->getPage() + $this->stepRange)
            );

            $quotient = ($this->getPageCount() - 1) / $this->stepCount;

            for ($i = 0; $i <= $this->stepCount; $i++) {
                $arr[] = (int) (round($quotient * $i) + $this->getFirstPage());
            }

            sort($arr);
            $this->steps = array_values(array_unique($arr));
        }

        return $this->steps;
    }

    /**
     * @return int
     */
    public function getCountBegin()
    {
        if ($this->countBegin === NULL) {
            $this->countBegin = $this->grid->getCount() > 0 ? $this->getOffset() + 1 : 0;
        }

        return $this->countBegin;
    }

    /**
     * @return int
     */
    public function getCountEnd()
    {
        if ($this->countEnd === NULL) {
            $this->countEnd = $this->grid->getCount() > 0
                ? min($this->grid->getCount(), $this->getPage() * $this->grid->getPerPage())
                : 0;
        }

        return $this->countEnd;
    }
}