NeoSetzer 86

v86 — 2026-10-29

主要改进

• 新增「减弱动画」偏好开关：偏好设置 → 外观新增「动画 / 减弱动画」（默认关闭，保持既有观感）。开启后关掉侧栏与预览栏的滑入滑出、各处淡入淡出与列表展开、侧栏目录跳转的滚动动画，以及 SyncTeX 双向跳转的高亮淡出。窗口与对话框自身的打开/关闭动画不受影响——Adw.OverlaySplitView 没有过渡时长属性，只能在同步的显隐调用期间临时关掉 gtk-enable-animations 并在返回后立即还原。

• 修复开关侧栏时的卡顿、行号慢一拍与行号短暂消失：开侧栏走 inline 动画，每帧改编辑器列宽；开着自动换行时整篇文档重排。行号滞后源于 gutter 覆盖层自身分配不变、GTK4 直接复用上一帧的 render node；行号消失源于整块重建的 surface 在绘制前就入缓存，以及重排期间按未验证的估计顶 y 平移把 surface 推出可视区。改为尺寸观察者驱动，gutter 缓存加几何指纹、覆盖守卫与「画完才发布」。顺带修掉一个静默失效的坑：GTK4 的 GtkWidget 没有 width/height 属性，connect('notify::width', ...) 不报错但永不触发，sticky scroll 与多光标原本挂的就是这样两条死连接。

• 消除输入/预览/侧栏热路径上的冗余重算与重绘：拼写检查改为按块增量重扫；预览淡出只在高亮矩形变化时标脏；页面尺寸加缓存、渲染结果改由回调投递以消除轮询唤醒；文档结构页订阅收窄到当前与根文档；侧栏统计在面板隐藏时挂起定时刷新；用户片段库按 mtime 缓存并让 revision 纳入补全缓存键；预览悬停移动不再连带重绘整页。

• 新增状态栏构建结果指示：右下角以纯文字显示根文档最近一次构建结果（如「构建成功」/「2 个错误，3 个警告」），点击打开构建日志弹窗；尚未构建过时隐藏，关闭文档时断开信号连接避免阻碍 GC。

• 补齐积压翻译：{n} error(s) / {n} warning(s) 及 v84/v85 新功能、改写后的 latexdb 宏包描述共 160 余条，在 7 种语言中全部补译；各语言未译条目降至 44 条，即语言选择器中按设计保持原语言的语言名。POTFILES 此前陈旧，顺带补进 81 个从未提取的字符串。

• Windows 便携包构建环境迁移到 MSYS2 UCRT64：MSYS2 自 2026-10 起逐步撤下 leaf 包的 MINGW64 构建，gtk4、libadwaita、gtksourceview5 等已无 mingw64 版本，构建因此切到官方建议的 UCRT64。便携包顶层目录随之由 mingw64 变为 ucrt64，启动方式变为 ucrt64\bin\setzer.bat，README 与打包文档同步更新。

• 测试：新增 20 余个无界面回归测试模块/用例覆盖上述动画偏好、gutter 缓存、滚动节流与热路径调度，并加入源码扫描守卫防止 notify::width 死连接写法回流。

Improvements

• feat: Add a "Reduce animations" preference (Preferences → Appearance, off by default). It turns off sidebar and preview sliding, crossfades, revealer expands, the sidebar list-scroll jump animation and the SyncTeX highlight fades. Window and dialog open/close animations are untouched — Adw.OverlaySplitView exposes no transition duration, so gtk-enable-animations is only flipped for the duration of the synchronous show/hide call and restored immediately.
• fix: Sidebar toggle no longer stutters, and gutter line numbers no longer lag one frame behind the text or briefly disappear. The gutter overlay was being served a stale render node, its surface cache could publish a half-drawn block, and mid-reflow offsets were estimated. Also fixes silently dead notify::width/::height connections (GTK4 widgets have no such properties) that kept sticky scroll and multi-cursor overlays from ever recomputing.
• perf: Removed redundant recomputation and repainting on typing/scrolling hot paths — incremental per-block spellchecking, preview fade only redraws on change, page-size caching with callback delivery instead of polling, narrowed structure-page and stats refresh scope, mtime-cached user snippets.
• feat: Status bar now shows the last build result of the root document as plain text and opens the build log on click.
• i18n: Translated 160+ backlog entries across all seven languages; untranslated count per language is now 44 (the language-picker autonyms, untranslated by design). POTFILES was stale and had never extracted 81 strings.
• Windows portable build moved to MSYS2 UCRT64: MSYS2 has been dropping MINGW64 builds of leaf packages since 2026-10, and gtk4, libadwaita and gtksourceview5 no longer ship a mingw64 variant, so the build now uses the recommended UCRT64 environment. The portable package's top-level directory changes from mingw64 to ucrt64; the launcher is now ucrt64\bin\setzer.bat. README and packaging docs updated accordingly.
• test: Added headless regression coverage for the animation preference, gutter cache, scroll throttling and hot-path scheduling, plus a source-scan guard against the dead notify::width pattern.

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