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<?php
namespace PhpOffice\PhpSpreadsheet\Chart;
class Legend
{
/** Legend positions */
const XL_LEGEND_POSITION_BOTTOM = -4107; // Below the chart.
const XL_LEGEND_POSITION_CORNER = 2; // In the upper right-hand corner of the chart border.
const XL_LEGEND_POSITION_CUSTOM = -4161; // A custom position.
const XL_LEGEND_POSITION_LEFT = -4131; // Left of the chart.
const XL_LEGEND_POSITION_RIGHT = -4152; // Right of the chart.
const XL_LEGEND_POSITION_TOP = -4160; // Above the chart.
const POSITION_RIGHT = 'r';
const POSITION_LEFT = 'l';
const POSITION_BOTTOM = 'b';
const POSITION_TOP = 't';
const POSITION_TOPRIGHT = 'tr';
private static $positionXLref = [
self::XL_LEGEND_POSITION_BOTTOM => self::POSITION_BOTTOM,
self::XL_LEGEND_POSITION_CORNER => self::POSITION_TOPRIGHT,
self::XL_LEGEND_POSITION_CUSTOM => '??',
self::XL_LEGEND_POSITION_LEFT => self::POSITION_LEFT,
self::XL_LEGEND_POSITION_RIGHT => self::POSITION_RIGHT,
self::XL_LEGEND_POSITION_TOP => self::POSITION_TOP,
];
/**
* Legend position.
*
* @var string
*/
private $position = self::POSITION_RIGHT;
/**
* Allow overlay of other elements?
*
* @var bool
*/
private $overlay = true;
/**
* Legend Layout.
*
* @var Layout
*/
private $layout;
/**
* Create a new Legend.
*
* @param string $position
* @param bool $overlay
*/
public function __construct($position = self::POSITION_RIGHT, ?Layout $layout = null, $overlay = false)
{
$this->setPosition($position);
$this->layout = $layout;
$this->setOverlay($overlay);
}
/**
* Get legend position as an excel string value.
*
* @return string
*/
public function getPosition()
{
return $this->position;
}
/**
* Get legend position using an excel string value.
*
* @param string $position see self::POSITION_*
*
* @return bool
*/
public function setPosition($position)
{
if (!in_array($position, self::$positionXLref)) {
return false;
}
$this->position = $position;
return true;
}
/**
* Get legend position as an Excel internal numeric value.
*
* @return int
*/
public function getPositionXL()
{
return array_search($this->position, self::$positionXLref);
}
/**
* Set legend position using an Excel internal numeric value.
*
* @param int $positionXL see self::XL_LEGEND_POSITION_*
*
* @return bool
*/
public function setPositionXL($positionXL)
{
if (!isset(self::$positionXLref[$positionXL])) {
return false;
}
$this->position = self::$positionXLref[$positionXL];
return true;
}
/**
* Get allow overlay of other elements?
*
* @return bool
*/
public function getOverlay()
{
return $this->overlay;
}
/**
* Set allow overlay of other elements?
*
* @param bool $overlay
*
* @return bool
*/
public function setOverlay($overlay)
{
if (!is_bool($overlay)) {
return false;
}
$this->overlay = $overlay;
return true;
}
/**
* Get Layout.
*
* @return Layout
*/
public function getLayout()
{
return $this->layout;
}
}
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