diff --git a/source/gui/ObjectTypes/CButton.cpp b/source/gui/ObjectTypes/CButton.cpp
index d401f9d540..5a74cba4d0 100644
--- a/source/gui/ObjectTypes/CButton.cpp
+++ b/source/gui/ObjectTypes/CButton.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2024 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -73,6 +73,11 @@ CSize2D CButton::GetTextSize()
 	return m_GeneratedTexts[0].GetSize();
 }
 
+CSize2D CButton::GetPreferredTextSize()
+{
+	return CGUIText{m_pGUI, m_Caption, m_Font, 0, m_BufferZone, m_TextAlign, this}.GetSize();
+}
+
 void CButton::HandleMessage(SGUIMessage& Message)
 {
 	IGUIObject::HandleMessage(Message);
diff --git a/source/gui/ObjectTypes/CButton.h b/source/gui/ObjectTypes/CButton.h
index 478a9788f4..37ec9ef070 100644
--- a/source/gui/ObjectTypes/CButton.h
+++ b/source/gui/ObjectTypes/CButton.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -48,6 +48,8 @@ public:
 	 */
 	CSize2D GetTextSize();
 
+	CSize2D GetPreferredTextSize();
+
 	/**
 	 * @see IGUIObject#HandleMessage()
 	 */
diff --git a/source/gui/ObjectTypes/CText.cpp b/source/gui/ObjectTypes/CText.cpp
index ab2dc029d3..cfb7c073ab 100644
--- a/source/gui/ObjectTypes/CText.cpp
+++ b/source/gui/ObjectTypes/CText.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2024 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -113,6 +113,11 @@ CSize2D CText::GetTextSize()
 	return m_GeneratedTexts[0].GetSize();
 }
 
+CSize2D CText::GetPreferredTextSize()
+{
+	return CGUIText{m_pGUI, m_Caption, m_Font, 0, m_BufferZone, m_TextAlign, this}.GetSize();
+}
+
 const CStrW& CText::GetTooltipText() const
 {
 	for (const CGUIText& text : m_GeneratedTexts)
diff --git a/source/gui/ObjectTypes/CText.h b/source/gui/ObjectTypes/CText.h
index d91ab18745..261369ebd5 100644
--- a/source/gui/ObjectTypes/CText.h
+++ b/source/gui/ObjectTypes/CText.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -49,6 +49,8 @@ public:
 	 */
 	CSize2D GetTextSize();
 
+	CSize2D GetPreferredTextSize();
+
 	virtual const CStrW& GetTooltipText() const;
 protected:
 	/**
diff --git a/source/gui/Scripting/JSInterface_GUIProxy.cpp b/source/gui/Scripting/JSInterface_GUIProxy.cpp
index a337b253e5..d1d5bb97b6 100644
--- a/source/gui/Scripting/JSInterface_GUIProxy.cpp
+++ b/source/gui/Scripting/JSInterface_GUIProxy.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2024 Wildfire Games.
+/* Copyright (C) 2025 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -44,6 +44,7 @@ DECLARE_GUIPROXY(IGUIObject);
 template<> void JSI_GUIProxy<CButton>::CreateFunctions(const ScriptRequest& rq, GUIProxyProps* cache)
 {
 	CreateFunction<&CButton::GetTextSize>(rq, cache, "getTextSize");
+	CreateFunction<&CButton::GetPreferredTextSize>(rq, cache, "getPreferredTextSize");
 }
 DECLARE_GUIPROXY(CButton);
 
@@ -51,6 +52,7 @@ DECLARE_GUIPROXY(CButton);
 template<> void JSI_GUIProxy<CText>::CreateFunctions(const ScriptRequest& rq, GUIProxyProps* cache)
 {
 	CreateFunction<&CText::GetTextSize>(rq, cache, "getTextSize");
+	CreateFunction<&CText::GetPreferredTextSize>(rq, cache, "getPreferredTextSize");
 }
 DECLARE_GUIPROXY(CText);