From 6a0da9cf09b80bba6ca731d3029210c5d839a77b Mon Sep 17 00:00:00 2001
From: fufesou <13586388+fufesou@users.noreply.github.com>
Date: Fri, 17 Oct 2025 12:35:43 -0400
Subject: [PATCH] fix: custom scale, dpi (#13197)

Signed-off-by: fufesou <linlong1266@gmail.com>
---
 flutter/lib/models/model.dart | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/flutter/lib/models/model.dart b/flutter/lib/models/model.dart
index 1a9987d9c..893a17b26 100644
--- a/flutter/lib/models/model.dart
+++ b/flutter/lib/models/model.dart
@@ -1927,8 +1927,12 @@ class CanvasModel with ChangeNotifier {
     }
 
     _devicePixelRatio = ui.window.devicePixelRatio;
-    if (kIgnoreDpi && style == kRemoteViewStyleOriginal) {
-      _scale = 1.0 / _devicePixelRatio;
+    if (kIgnoreDpi) {
+      if (style == kRemoteViewStyleOriginal) {
+        _scale = 1.0 / _devicePixelRatio;
+      } else if (_scale != 0 && style == kRemoteViewStyleCustom) {
+        _scale /= _devicePixelRatio;
+      }
     }
     _resetCanvasOffset(displayWidth, displayHeight);
     final overflow = _x < 0 || y < 0;