Implemented stacking close queries

src/class-laps.php

@@ -164,6 +164,7 @@ class Laps {
 				jQuery(".laps-timeline .event").lapstooltip({
 					container: '#wpadminbar'
 					, placement: 'bottom'
+					, html: true
 //					, trigger: 'click'
 				});
 			});
@@ -205,6 +206,8 @@ class Laps {
 
 		$query_data     = array();
 		$last_query_end = 0;
+		$last_offset    = 0;
+		$last_duration  = 0;
 		$category       = 'query';
 
 		if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) {
@@ -215,7 +218,28 @@ class Laps {
 				$duration *= 1000;
 				$last_query_end = $query_start + $duration;
 				$offset         = round( ( $query_start - $start ) / $total * 100, 2 );
-				$width          = round( $duration / $total * 100, 2 );
+
+				// if query is indistinguishably close to previous then stack it
+				if ( $offset == $last_offset ) {
+					$key = count( $query_data ) - 1;
+					$query_data[$key]['sql'] .= '<br />' . $sql;
+					$last_duration += $duration;
+					$width = round( $last_duration / $total * 100, 2 );
+
+					if ( 0 == $width ) {
+						$width = '2px';
+					} else {
+						$width .= '%';
+					}
+
+					$query_data[$key]['width'] = $width;
+
+					continue;
+				}
+
+				$width         = round( $duration / $total * 100, 2 );
+				$last_offset   = $offset;
+				$last_duration = $duration;
 
 				if ( 0 == $width ) {
 					$width = '2px';