From f5276d34d2c03dbc35c40860832f224cd11f67a4 Mon Sep 17 00:00:00 2001
From: Patrick Dawson <pat@dw.is>
Date: Sun, 21 Apr 2024 01:30:02 +0200
Subject: [PATCH] Fix SubViewport mouse position in Godot 4.2.2

---
 Dear ImGui for Godot Demo.csproj                |  2 +-
 addons/imgui-godot/ImGuiGodot/Internal/Input.cs | 17 +++++++++--------
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/Dear ImGui for Godot Demo.csproj b/Dear ImGui for Godot Demo.csproj
index 3bfb6090..a9cb7ce0 100644
--- a/Dear ImGui for Godot Demo.csproj	
+++ b/Dear ImGui for Godot Demo.csproj	
@@ -1,4 +1,4 @@
-<Project Sdk="Godot.NET.Sdk/4.2.1">
+<Project Sdk="Godot.NET.Sdk/4.2.2">
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>
     <EnableDynamicLoading>true</EnableDynamicLoading>
diff --git a/addons/imgui-godot/ImGuiGodot/Internal/Input.cs b/addons/imgui-godot/ImGuiGodot/Internal/Input.cs
index 8e34a2be..42c2655f 100644
--- a/addons/imgui-godot/ImGuiGodot/Internal/Input.cs
+++ b/addons/imgui-godot/ImGuiGodot/Internal/Input.cs
@@ -94,19 +94,20 @@ public void Update(ImGuiIOPtr io)
     public bool ProcessInput(InputEvent evt, Window window)
     {
         var io = ImGui.GetIO();
-        bool viewportsEnable = io.ConfigFlags.HasFlag(ImGuiConfigFlags.ViewportsEnable);
-
-        var windowPos = Vector2I.Zero;
-        if (viewportsEnable)
-            windowPos = window.Position;
 
         if (CurrentSubViewport != null)
         {
             var vpEvent = evt.Duplicate() as InputEvent;
             if (vpEvent is InputEventMouse mouseEvent)
             {
-                mouseEvent.Position = new Vector2(windowPos.X + mouseEvent.GlobalPosition.X - CurrentSubViewportPos.X,
-                    windowPos.Y + mouseEvent.GlobalPosition.Y - CurrentSubViewportPos.Y)
+                var mousePos = DisplayServer.MouseGetPosition();
+                var windowPos = Vector2I.Zero;
+                if (!io.ConfigFlags.HasFlag(ImGuiConfigFlags.ViewportsEnable))
+                    windowPos = window.Position;
+
+                mouseEvent.Position = new Vector2(
+                    mousePos.X - windowPos.X - CurrentSubViewportPos.X,
+                    mousePos.Y - windowPos.Y - CurrentSubViewportPos.Y)
                     .Clamp(Vector2.Zero, CurrentSubViewport.Size);
             }
             CurrentSubViewport.PushInput(vpEvent, true);
@@ -133,7 +134,7 @@ public bool ProcessInput(InputEvent evt, Window window)
                     io.AddMouseButtonEvent((int)ImGuiMouseButton.Left, mb.Pressed);
 #if GODOT_WINDOWS && !GODOT4_1_OR_GREATER
                     // if the left mouse button is released, the mouse almost certainly should not be captured
-                    if (viewportsEnable && !mb.Pressed)
+                    if (io.ConfigFlags.HasFlag(ImGuiConfigFlags.ViewportsEnable) && !mb.Pressed)
                         Viewports.MouseCaptureWorkaround();
 #endif
                     break;