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vendor/yiisoft/yii2-debug/models/timeline/DataProvider.php

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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)
+        ];
+    }
+
+}