From 32868ea058f08f22e5fe5b078d72d72670ad7cef Mon Sep 17 00:00:00 2001
From: Thibault Deckers <thibault.deckers@gmail.com>
Date: Tue, 17 Jan 2023 17:11:51 +0100
Subject: [PATCH] #485 viewer: do not keep max brightness when viewing info

---
 CHANGELOG.md                                 | 4 ++++
 lib/widgets/viewer/entry_vertical_pager.dart | 6 +++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 94b7b0a1b..3741a684c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ All notable changes to this project will be documented in this file.
 
 - Video: optional gestures to adjust brightness/volume
 
+### Changed
+
+- Viewer: do not keep max brightness when viewing info
+
 ## <a id="v1.7.9"></a>[v1.7.9] - 2023-01-15
 
 ### Added
diff --git a/lib/widgets/viewer/entry_vertical_pager.dart b/lib/widgets/viewer/entry_vertical_pager.dart
index 76c11f35a..dd7c02801 100644
--- a/lib/widgets/viewer/entry_vertical_pager.dart
+++ b/lib/widgets/viewer/entry_vertical_pager.dart
@@ -286,10 +286,10 @@ class _ViewerVerticalPageViewState extends State<ViewerVerticalPageView> {
     final opacity = min(1.0, page);
     _backgroundOpacityNotifier.value = opacity * opacity;
 
-    if (page <= 1 && settings.viewerMaxBrightness) {
+    if (settings.viewerMaxBrightness) {
       _systemBrightness?.then((system) {
-        final transition = max(system, lerpDouble(system, maximumBrightness, page / 2)!);
-        ScreenBrightness().setScreenBrightness(transition);
+        final value = lerpDouble(maximumBrightness, system, ((1 - page).abs() * 2).clamp(0, 1))!;
+        ScreenBrightness().setScreenBrightness(value);
       });
     }