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<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.doctrine-project.org>.
*/
/**
* Doctrine_Pager_Range
*
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @package Doctrine
* @subpackage Pager
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @version $Revision$
* @link www.doctrine-project.org
* @since 0.9
*/
abstract class Doctrine_Pager_Range
{
/**
* @var array $_options Custom Doctrine_Pager_Range implementation options
*/
protected $_options;
/**
* @var Doctrine_Pager $pager Doctrine_Pager object related to the pager range
*/
private $pager;
/**
* __construct
*
* @param array $options Custom subclass implementation options.
* Default is a blank array
* @param Doctrine_Pager $pager Optional Doctrine_Pager object to be associated
* @return void
*/
final public function __construct($options = array(), $pager = null)
{
$this->_setOptions($options);
if ($pager !== null) {
$this->setPager($pager);
}
}
/**
* getPager
*
* Returns the Doctrine_Pager object related to the pager range
*
* @return Doctrine_Pager Doctrine_Pager object related to the pager range
*/
public function getPager()
{
return $this->pager;
}
/**
* setPager
*
* Defines the Doctrine_Pager object related to the pager range and
* automatically (re-)initialize Doctrine_Pager_Range
*
* @param $pager Doctrine_Pager object related to the pager range
* @return void
*/
public function setPager($pager)
{
$this->pager = $pager;
// Lazy-load initialization. It only should be called when all
// needed information data is ready (this can only happens when we have
// options stored and a Doctrine_Pager assocated)
$this->_initialize();
}
/**
* getOptions
*
* Returns the custom Doctrine_Pager_Range implementation options
*
* @return array Custom Doctrine_Pager_Range implementation options
*/
public function getOptions()
{
return $this->_options;
}
/**
* getOption
*
* Returns the custom Doctrine_Pager_Range implementation offset option
*
* @return array Custom Doctrine_Pager_Range implementation options
*/
public function getOption($option)
{
if (isset($this->_options[$option])) {
return $this->_options[$option];
}
throw new Doctrine_Pager_Exception(
'Cannot access unexistent option \'' . $option . '\' in Doctrine_Pager_Range class'
);
}
/**
* _setOptions
*
* Defines the subclass implementation options
*
* @param $options Custom Doctrine_Pager_Range implementation options
* @return void
*/
protected function _setOptions($options)
{
$this->_options = $options;
}
/**
* isInRange
*
* Check if a given page is in the range
*
* @param $page Page to be checked
* @return boolean
*/
public function isInRange($page)
{
return (array_search($page, $this->rangeAroundPage()) !== false);
}
/**
* _initialize
*
* Initialize Doctrine_Page_Range subclass which does custom class definitions
*
* @return void
*/
abstract protected function _initialize();
/**
* rangeAroundPage
*
* Calculate and returns an array representing the range around the current page
*
* @return array
*/
abstract public function rangeAroundPage();
}
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