From c227a8af9a28e0a88665d8ac9ee842ed22bc3b9c Mon Sep 17 00:00:00 2001
From: bymyself <abolkonsky.rem@gmail.com>
Date: Mon, 19 Aug 2024 17:51:24 -0700
Subject: [PATCH] Use DPI to calculate screen center (#544)

---
 src/scripts/app.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/scripts/app.ts b/src/scripts/app.ts
index ee2b491c90..e09b13cbb8 100644
--- a/src/scripts/app.ts
+++ b/src/scripts/app.ts
@@ -2952,9 +2952,10 @@ export class ComfyApp {
     ) as Vector2
   }
 
-  getCanvasCenter() {
+  getCanvasCenter(): Vector2 {
+    const dpi = Math.max(window.devicePixelRatio ?? 1, 1)
     const [x, y, w, h] = app.canvas.ds.visible_area
-    return [x + w / 2, y + h / 2]
+    return [x + w / dpi / 2, y + h / dpi / 2]
   }
 }