From d5306c9e5503c9fc566ce25f2c631e78780e7ced Mon Sep 17 00:00:00 2001
From: Juanjo <juanjo.ng.83@gmail.com>
Date: Sat, 23 Aug 2014 18:22:18 +0200
Subject: [PATCH] Add: Add a function to check if a window has a certain
 widget.

---
 src/window_gui.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/window_gui.h b/src/window_gui.h
index 1c5b7d8d5c..a082e141f0 100644
--- a/src/window_gui.h
+++ b/src/window_gui.h
@@ -336,6 +336,11 @@ public:
 	template <class NWID>
 	inline NWID *GetWidget(WidgetID widnum);
 
+	inline bool HasWidget(WidgetID widnum) const
+	{
+		return this->GetWidget<NWidgetCore>(widnum) != nullptr;
+	}
+
 	const Scrollbar *GetScrollbar(WidgetID widnum) const;
 	Scrollbar *GetScrollbar(WidgetID widnum);