From 0c4e30b87dd63d5bd88f57798ceca41670dc3ac2 Mon Sep 17 00:00:00 2001
From: fanlusky <1730976608@qq.com>
Date: Tue, 16 Jun 2026 21:15:04 +0800
Subject: [PATCH] Remove scrollbar track inset

---
 ui/README.md      | 1 +
 ui/src/Layout.cpp | 4 +---
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/ui/README.md b/ui/README.md
index fbead7ed..258f0f2e 100644
--- a/ui/README.md
+++ b/ui/README.md
@@ -72,6 +72,7 @@
 - 将 demo 顶部的 `msimeui` 标题和副标题改为居中展示，并把标题上方留白收窄到原来的一半
 - 修正了 demo 顶部标题区的居中方式：改为通过独立 header 容器居中内容，确保 `msimeui` 标题和描述文本在页面顶部真正水平居中
 - 为 `TextBlock` 补充了文本水平对齐能力，demo 顶部标题区现改为使用真正的居中文本对齐，而不是仅靠外层布局盒子居中
+- 调整了 `ScrollViewer` 的纵向滚动条轨道边距，去掉上、下、右侧 inset，让滚动条更贴合视口右边缘
 
 ## 构建
 
diff --git a/ui/src/Layout.cpp b/ui/src/Layout.cpp
index 0afebb47..9f640557 100644
--- a/ui/src/Layout.cpp
+++ b/ui/src/Layout.cpp
@@ -1082,9 +1082,7 @@ void ScrollViewer::RefreshViewport()
 RectF ScrollViewer::GetScrollbarTrackRect() const
 {
     constexpr float kScrollbarWidth = 10.0f;
-    constexpr float kScrollbarInset = 6.0f;
-    return {bounds_.x + bounds_.width - kScrollbarWidth - kScrollbarInset, bounds_.y + kScrollbarInset, kScrollbarWidth,
-            std::max(bounds_.height - kScrollbarInset * 2.0f, 0.0f)};
+    return {bounds_.x + bounds_.width - kScrollbarWidth, bounds_.y, kScrollbarWidth, std::max(bounds_.height, 0.0f)};
 }
 
 RectF ScrollViewer::GetScrollbarThumbRect() const