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<?php
namespace Halfpastfour\PHPChartJS;
use Halfpastfour\PHPChartJS\Renderer\Html;
/**
* Class Chart
*
* @package Halfpastfour\PHPChartJS
*/
abstract class Chart implements ChartInterface
{
/**
* The internal type of chart.
*/
const TYPE = null;
/**
* The list of models that should be used for this chart type.
*/
const MODEL = [
'dataset' => DataSet::class,
'options' => Options::class,
];
/**
* @var string
*/
protected $id;
/**
* @var int
*/
protected $height;
/**
* @var int
*/
protected $width;
/**
* @var string
*/
protected $title;
/**
* @var LabelsCollection
*/
protected $labels;
/**
* @var Options
*/
protected $options;
/**
* @var DataSetCollection
*/
protected $dataSets;
/**
* @return string
*/
public function getId()
{
if (is_null($this->id)) {
$this->id = uniqid('chart');
}
return $this->id;
}
/**
* @param string $id
*
* @return Chart
*/
public function setId($id)
{
$this->id = strval($id);
return $this;
}
/**
* @return int
*/
public function getHeight()
{
return $this->height;
}
/**
* @param int $height
*
* @return Chart
*/
public function setHeight($height)
{
$this->height = intval($height);
return $this;
}
/**
* @return int
*/
public function getWidth()
{
return $this->width;
}
/**
* @param int $width
*
* @return Chart
*/
public function setWidth($width)
{
$this->width = intval($width);
return $this;
}
/**
* @return string
*/
public function getTitle()
{
return $this->title;
}
/**
* @param string $title
*
* @return Chart
*/
public function setTitle($title)
{
$this->title = strval($title);
return $this;
}
/**
* @return LabelsCollection
*/
public function labels()
{
if (is_null($this->labels)) {
$this->labels = new LabelsCollection();
}
return $this->labels;
}
/**
* @param string $label
*
* @return $this
*/
public function addLabel($label)
{
$this->labels()->append($label);
return $this;
}
/**
* @param $offset
*
* @return string|bool
*/
public function getLabel($offset)
{
return $this->labels()->offsetGet($offset);
}
/**
* @return DataSetCollection
*/
public function dataSets()
{
if (is_null($this->dataSets)) {
$this->dataSets = new DataSetCollection();
}
return $this->dataSets;
}
/**
* @param DataSet $dataSet
*
* @return $this
*/
public function addDataSet(DataSet $dataSet)
{
$this->dataSets()->append($dataSet->setOwner($this));
return $this;
}
/**
* @param $offset
*
* @return DataSet|bool
*/
public function getDataSet($offset)
{
return $this->dataSets()->offsetGet($offset);
}
/**
* @param bool $pretty
*
* @return string
*/
public function render($pretty = false)
{
$renderer = new Html($this);
return $renderer->render($pretty ? $renderer::RENDER_PRETTY : null);
}
/**
* @return DataSet
*/
public function createDataSet()
{
$datasetClass = static::MODEL['dataset'];
/** @var \Halfpastfour\PHPChartJS\DataSet $dataSet */
$dataSet = new $datasetClass();
$dataSet->setOwner($this);
return $dataSet;
}
/**
* @return Options
*/
public function options()
{
if (is_null($this->options)) {
$optionsClass = static::MODEL['options'];
$this->options = new $optionsClass($this);
$this->options->setOwner($this);
}
return $this->options;
}
}