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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\debug\models\timeline;
use yii\data\ArrayDataProvider;
use yii\debug\panels\TimelinePanel;
/**
* DataProvider implements a data provider based on a data array.
*
* @property array $rulers This property is read-only.
*
* @author Dmitriy Bashkarev <dmitriy@bashkarev.com>
* @since 2.0.8
*/
class DataProvider extends ArrayDataProvider
{
/**
* @var TimelinePanel
*/
protected $panel;
/**
* DataProvider constructor.
* @param TimelinePanel $panel
* @param array $config
*/
public function __construct(TimelinePanel $panel, $config = [])
{
$this->panel = $panel;
parent::__construct($config);
}
/**
* @inheritdoc
*/
protected function prepareModels()
{
if (($models = $this->allModels) === null) {
return [];
}
$child = [];
foreach ($models as $key => &$model) {
$model['timestamp'] *= 1000;
$model['duration'] *= 1000;
$model['child'] = 0;
$model['css']['width'] = $this->getWidth($model);
$model['css']['left'] = $this->getLeft($model);
$model['css']['color'] = $this->getColor($model);
foreach ($child as $id => $timestamp) {
if ($timestamp > $model['timestamp']) {
++$models[$id]['child'];
} else {
unset($child[$id]);
}
}
$child[$key] = $model['timestamp'] + $model['duration'];
}
return $models;
}
/**
* Getting HEX color based on model duration
* @param array $model
* @return string
*/
public function getColor($model)
{
$width = isset($model['css']['width']) ? $model['css']['width'] : $this->getWidth($model);
foreach ($this->panel->colors as $percent => $color) {
if ($width >= $percent) {
return $color;
}
}
return '#d6e685';
}
/**
* Returns the offset left item, percentage of the total width
* @param array $model
* @return float
*/
public function getLeft($model)
{
return $this->getTime($model) / ($this->panel->duration / 100);
}
/**
* Returns item duration, milliseconds
* @param array $model
* @return float
*/
public function getTime($model)
{
return $model['timestamp'] - $this->panel->start;
}
/**
* Returns item width percent of the total width
* @param array $model
* @return float
*/
public function getWidth($model)
{
return $model['duration'] / ($this->panel->duration / 100);
}
/**
* Returns item, css class
* @param array $model
* @return string
*/
public function getCssClass($model)
{
$class = 'time';
$class .= (($model['css']['left'] > 15) && ($model['css']['left'] + $model['css']['width'] > 50)) ? ' right' : ' left';
return $class;
}
/**
* ruler items, key milliseconds, value offset left
* @param int $line number of columns
* @return array
*/
public function getRulers($line = 10)
{
if ($line == 0) {
return [];
}
$data = [0];
$percent = ($this->panel->duration / 100);
$row = $this->panel->duration / $line;
$precision = $row > 100 ? -2 : -1;
for ($i = 1; $i < $line; $i++) {
$ms = round($i * $row, $precision);
$data[$ms] = $ms / $percent;
}
return $data;
}
/**
* ```php
* [
* 0 => string, memory usage (MB)
* 1 => float, Y position (percent)
* ]
* @param array $model
* @return array|null
*/
public function getMemory($model)
{
if (empty($model['memory'])) {
return null;
}
return [
sprintf('%.2f MB', $model['memory'] / 1048576),
$model['memory'] / ($this->panel->memory / 100)
];
}
}