From 83ecf3f4fa9e245d792010614e6193ada804889d Mon Sep 17 00:00:00 2001
From: Xottab-DUTY <xottab-duty@yandex.ru>
Date: Sun, 5 Jan 2025 22:21:36 +0300
Subject: [PATCH] xrUICore: add helper functions to get window center position

---
 src/xrUICore/Windows/UIWindow.cpp |  2 +-
 src/xrUICore/Windows/UIWindow.h   | 14 ++++++++++++--
 src/xrUICore/uiabstract.h         |  9 +++++++++
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/src/xrUICore/Windows/UIWindow.cpp b/src/xrUICore/Windows/UIWindow.cpp
index 8cf5608e73c..c940abe8860 100644
--- a/src/xrUICore/Windows/UIWindow.cpp
+++ b/src/xrUICore/Windows/UIWindow.cpp
@@ -126,7 +126,7 @@ void CUIWindow::DetachAll()
     }
 }
 
-void CUIWindow::GetAbsoluteRect(Frect& r)
+void CUIWindow::GetAbsoluteRect(Frect& r) const
 {
     auto parent = GetParent();
     if (parent == nullptr)
diff --git a/src/xrUICore/Windows/UIWindow.h b/src/xrUICore/Windows/UIWindow.h
index 6b8aab22f50..bb8f8127450 100644
--- a/src/xrUICore/Windows/UIWindow.h
+++ b/src/xrUICore/Windows/UIWindow.h
@@ -124,14 +124,24 @@ class XRUICORE_API CUIWindow : public CUISimpleWindow, public CUIDebuggable
     void ShowChildren(bool show);
 
     //абсолютные координаты
-    void GetAbsoluteRect(Frect& r);
-    IC void GetAbsolutePos(Fvector2& p)
+    void GetAbsoluteRect(Frect& r) const;
+
+    void GetAbsolutePos(Fvector2& p) const
     {
         Frect abs;
         GetAbsoluteRect(abs);
         p.set(abs.x1, abs.y1);
     }
 
+    Fvector2 GetAbsoluteCenterPos() const
+    {
+        Frect abs;
+        GetAbsoluteRect(abs);
+        auto size = GetWndSize();
+        size.div(2.0f);
+        return { abs.x1 + size.x, abs.y1 + size.y };
+    }
+
     void SetWndRect_script(Frect rect) { CUISimpleWindow::SetWndRect(rect); }
     void SetWndPos_script(Fvector2 pos) { CUISimpleWindow::SetWndPos(pos); }
     void SetWndSize_script(Fvector2 size) { CUISimpleWindow::SetWndSize(size); }
diff --git a/src/xrUICore/uiabstract.h b/src/xrUICore/uiabstract.h
index 54ba0e70bda..f2d38bd5e22 100644
--- a/src/xrUICore/uiabstract.h
+++ b/src/xrUICore/uiabstract.h
@@ -47,17 +47,26 @@ class CUISimpleWindow : public Noncopyable
 
     virtual void SetWndPos(const Fvector2& pos) { m_wndPos.set(pos.x, pos.y); }
     IC const Fvector2& GetWndPos() const { return m_wndPos; }
+
+    Fvector2 GetWndCenterPos() const
+    {
+        return { m_wndPos.x + m_wndSize.x / 2.0f, m_wndPos.y + m_wndSize.y / 2.0f, };
+    }
+
     virtual void SetWndSize(const Fvector2& size) { m_wndSize = size; }
     IC const Fvector2& GetWndSize() const { return m_wndSize; }
+
     virtual void SetWndRect(const Frect& rect)
     {
         m_wndPos.set(rect.lt);
         rect.getsize(m_wndSize);
     }
+
     virtual void SetHeight(float height) { m_wndSize.y = height; }
     IC float GetHeight() const { return m_wndSize.y; }
     virtual void SetWidth(float width) { m_wndSize.x = width; }
     IC float GetWidth() const { return m_wndSize.x; }
+
     IC void SetVisible(bool vis) { m_bShowMe = vis; }
     IC bool GetVisible() const { return m_bShowMe; }
     IC void SetAlignment(EWindowAlignment al) { m_alignment = al; };