From 03d15b42bdaa0b07ce3807d6a8672df08d1090fe Mon Sep 17 00:00:00 2001
From: CrispyPin <crispin@tasa.se>
Date: Fri, 7 Apr 2023 19:27:35 +0200
Subject: [PATCH] correctly display cursor position when multiple screens exist

---
 src/panel.cpp | 15 +++++++++++----
 src/panel.h   |  4 ++--
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/panel.cpp b/src/panel.cpp
index cfe0e27..69f1ace 100644
--- a/src/panel.cpp
+++ b/src/panel.cpp
@@ -95,13 +95,20 @@ void Panel::Render()
 
 void Panel::UpdateCursor()
 {
-	auto global = _app->GetCursorPosition();
+	auto global_pos = _app->GetCursorPosition();
+	if (global_pos.x < _x || global_pos.x >= _x + _width || global_pos.y < _y || global_pos.y >= _y + _height)
+	{
+		_app->vr_overlay->ClearOverlayCursorPositionOverride(_id);
+		return;
+	}
+	int local_x = global_pos.x - _x;
+	int local_y = global_pos.y - _y;
+
 	// TODO: make this work when aspect ratio is >1 (root window is taller than it is wide)
-	// TODO take into account that the panel is smaller than the root window
 	float ratio = (float)_height / (float)_width;
 	float top_edge = 0.5f - ratio / 2.0f;
-	float x = global.x / (float)_width;
-	float y = 1.0f - (global.y / (float)_width + top_edge);
+	float x = local_x / (float)_width;
+	float y = 1.0f - (local_y / (float)_width + top_edge);
 	auto pos = vr::HmdVector2_t{x, y};
 	_app->vr_overlay->SetOverlayCursorPositionOverride(_id, &pos);
 }
diff --git a/src/panel.h b/src/panel.h
index 7f80c00..afca6fc 100644
--- a/src/panel.h
+++ b/src/panel.h
@@ -28,8 +28,8 @@ class Panel
 	TrackerID _active_hand;
 	bool _is_held;
 
-	unsigned int _x, _y;
-	unsigned int _width, _height;
+	int _x, _y;
+	int _width, _height;
 	float _alpha;
 
 	vr::Texture_t _texture;