Moved timeline iterator to record namespace.

src/Record/Timeline_Iterator.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace Rarst\Laps\Record;
+
+class Timeline_Iterator implements \Iterator {
+
+	/** @var float $origin Start point for the timeline. */
+	protected $origin;
+
+	/** @var float $end Timeline duration. */
+	protected $total;
+
+	/** @var Recursive_Record_Iterator */
+	protected $iterator;
+
+	/** @var Recursive_Record_Iterator */
+	protected $current;
+
+	public function __construct( Recursive_Record_Iterator $iterator ) {
+
+		global $timestart;
+
+		$this->origin   = $timestart * 1000;
+		$this->iterator = $iterator;
+	}
+
+	/**
+	 * @return array
+	 */
+	public function current() {
+
+		$data = [];
+
+		foreach ( $this->current as $record ) {
+			$data[] = $this->prepare( $record );
+		}
+
+		return $data;
+	}
+
+	public function next() {
+		$this->current = $this->current->getChildren();
+	}
+
+	public function key() {
+
+	}
+
+	public function valid() {
+		return (bool) count( $this->current );
+	}
+
+	public function rewind() {
+		$this->total   = microtime( true ) * 1000 - $this->origin;
+		$this->current = $this->iterator;
+	}
+
+	protected function prepare( Record_Interface $record ) {
+
+		$data = [
+			'description' => $record->get_description(),
+			'category'    => $record->get_category(),
+			'offset'      => round( ( $record->get_origin() - $this->origin ) / $this->total * 100, 2 ),
+			'width'       => round( $record->get_duration() / $this->total * 100, 2 ),
+		];
+
+		return $data;
+	}
+}