From 986c04dfd5f57f325f4060f4d03e13461d16ee5b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9a=20Saviot?= <lea.saviot@numworks.com>
Date: Thu, 20 Sep 2018 16:00:23 +0200
Subject: [PATCH] [poincare] Make HorizontalLayoutNode::positionOfChild faster
 and lighter

---
 poincare/src/horizontal_layout.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/poincare/src/horizontal_layout.cpp b/poincare/src/horizontal_layout.cpp
index 33cdc8fa2..d135a0dea 100644
--- a/poincare/src/horizontal_layout.cpp
+++ b/poincare/src/horizontal_layout.cpp
@@ -213,9 +213,12 @@ KDPoint HorizontalLayoutNode::positionOfChild(LayoutNode * l) {
   KDCoordinate x = 0;
   int index = indexOfChild(l);
   assert(index > -1);
-  if (index > 0) {
-    LayoutNode * previousChild = childAtIndex(index-1);
-    x = previousChild->origin().x() + previousChild->layoutSize().width();
+  for (LayoutNode * c : children()) {
+    if (c == l) {
+      break;
+    }
+    KDSize childSize = c->layoutSize();
+    x += childSize.width();
   }
   KDCoordinate y = baseline() - l->baseline();
   return KDPoint(x, y);