From 1c940fcc8ebf7bdbb626ead82065656f2fdd9322 Mon Sep 17 00:00:00 2001
From: dayllenger <dayllenger@protonmail.com>
Date: Wed, 18 Oct 2017 11:15:58 +0300
Subject: [PATCH] optimize FrameLayout: do not layout when frame is invisible

---
 src/dlangui/widgets/layouts.d | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/dlangui/widgets/layouts.d b/src/dlangui/widgets/layouts.d
index 9d5b8f06..57c906a2 100644
--- a/src/dlangui/widgets/layouts.d
+++ b/src/dlangui/widgets/layouts.d
@@ -643,7 +643,7 @@ class FrameLayout : WidgetGroupDefaultDrawing {
         applyPadding(rc);
         for (int i = 0; i < _children.count; i++) {
             Widget item = _children.get(i);
-            if (item.visibility != Visibility.Gone) {
+            if (item.visibility == Visibility.Visible) {
                 item.layout(rc);
             }
         }
@@ -657,6 +657,7 @@ class FrameLayout : WidgetGroupDefaultDrawing {
             Widget item = _children.get(i);
             if (item.compareId(ID)) {
                 item.visibility = Visibility.Visible;
+                item.requestLayout();
                 foundWidget = item;
                 found = true;
             } else {