fix(design): M61 r1 收口 —— 官方 emphasized/弹簧/高程 + 冻结测试
reviewer r1 判 p2-2items（fix-then-merge），本轮按条目收口： P2-1 冻结测试补全（变异实测证明原来可静默漂移）： - tests/type_scale_pins.rs：baseline 15 档 (size,line_height,weight,tracking,family) 与 Expressive 强调 15 档逐值对拍，期望值独立于实现重写 - tests/token_pins.rs：49 条 tone（light+dark 全表）、7 条 easing 曲线参数、 16 档时长、9 组弹簧、28 个 IconKind 下标、形状阶梯 - 自证：TitleMedium 16→17 与 EmphasizedDecelerate 换曲线两次变异均 FAILED P2-2 emphasized 口径事实错误（用户点名）： - 取回 A 级官方值（androidx TypeScaleTokens v0_103 的 *Emphasized* 四元组）： label-*/title-medium/title-small 强调是 700（此前给 600）、body-large 0.5→0.15、 title-medium 0.2→0.15、body-medium 0.2→0.25、display-large -0.2→0 - TypeRole::emphasized() 改为官方表（typography/emphasized.rs）； 原「只加一档字重」规则改名 emphasized_simplified() 并标注非官方 - 顺带按官方订正 baseline tracking（display-large -0.2、body-medium 0.2、 title-medium 0.2）与 TitleLarge 的 Brand 族归属 - crate 文档新增「baseline MD3 vs M3 Expressive 差异清单」+ 未支持能力 gap 弹簧改为两套 token 结构（用户追加令）： - motion::spring(scheme × category × speed) 二维表 12 格： standard spatial ζ=0.9 (k 1400/700/300)、expressive spatial ζ=0.6~0.8 (k 800/380/200)、 effects 两套同值 ζ=1.0 (k 3800/1600/800)，均取 A 级 MotionTokens 原值 - Spring 改存阻尼比（与 Compose 令牌同口径），9 个具名常量 中文字重覆盖（用户追加令）： - FontFace 带 WeightCoverage（可变区间/静态表），Platform::resolve_weight 给 Native/Nearest/Synthetic 三档结论；雅黑无 500、苹方无 700 两处 gap 显式登记 component_map 高程按官方回调（P2 并入 finding）： - FilledCard L2→L0、OutlinedCard L1→L0、Menu L4→L2、Dialog L5→L3（Menu 圆角同时 按 MenuTokens 改 4dp）；新增官方值 pin 测试 + R4「全屏都在飘」守门断言 P3 四条： - 同族容器撞色：彩度按共享基准等比压缩（Palettes.reference_chroma）， primary/secondary-container 不再同值，且强调色覆盖时表面逐像素不变 - femtovg 引用改函数名（行号已漂）；删掉 contrast_aa 的死代码后门 - 骨架数值跟 M63：nav 56→44、titlebar 40→48，control 40/touch 48 换算依据入文档 - 图标折算口径订正为「居中描边，视觉外扩 <1px」
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@@ -1,7 +1,37 @@
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//! 三平台字体族回退栈（Win10+ / macOS 12+ / Linux）。
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//! 三平台字体族回退栈（Win10+ / macOS 12+ / Linux）+ **字重覆盖**模型。
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//!
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//! 只写族名，不写文件路径、不内嵌字体（D14 + D28）。每条栈的**最后一项必须是通用族名**，
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//! 否则干净安装的系统上会退化成豆腐块。
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//!
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//! ## 为什么要表达「这个族有哪几档字重」
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//!
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//! M3 Expressive 的强调档会要 **700**（title-medium/title-small/label-*）与 **500**
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//! （display/headline/body-*）。而中文字体的字重覆盖差别很大：
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//! **Windows 的 Microsoft YaHei UI 只有 400 / 700 两档**，没有 500；macOS 苹方到 600 就断了、
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//! 没有 700；只有 Linux 常见的 Noto Sans CJK / 思源黑体（可变字体）才 100~900 全覆盖。
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//!
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//! 所以栈项不是「一个族名」，而是 `(族名, 字重覆盖)`（[`FontFace`]），并且提供一个纯函数
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//! [`Platform::resolve_weight`] 说明「这一档字重最终落到哪个族、是原生还是降级」：
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//!
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//! | 结果 | 含义 |
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//! |---|---|
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//! | [`WeightMatch::Native`] | 该族有这一档（可变字体在区间内也算原生） |
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//! | [`WeightMatch::Nearest`] | 该族没有这一档，取最近的静态档（视觉上是「淡一点/粗一点」，不假） |
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//! | [`WeightMatch::Synthetic`] | 最近的档差 ≥2 级（如只有 400 却要 700）→ 引擎**合成加粗**，观感廉价 |
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//!
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//! **合成加粗是降级，不是正常路径**（用户令：不许拿合成加粗当「还原到位」）。
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//! iced/cosmic-text 侧机制：`Font { family, weight, .. }` 由 cosmic-text 按 (family, weight)
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//! 选面，同族缺档时选最近字重；glyphon 另可用 swash 的合成（fake bold）兜底。
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//! 中文缺档时的降级顺序：**① 换下一个有该档的族 → ② 用可变字体的 weight 轴 → ③ 最近静态档
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//! → ④ 最后才是合成加粗**（并且不要用 700 排长中文正文）。
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//!
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//! ## 待确认（D28 联动，不在本 mission 拍板）
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//!
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//! 将来从 CDN 下载中文字体时，「一个 Regular 文件」不够——至少要 400/500/700 三档子集，
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//! 或者一个可变字体（体积更大）。这个差异登记在这里，等 D28 的字体下载 mission 决定。
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#[cfg(test)]
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mod tests;
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/// 平台（决定字体族回退栈）。
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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@@ -14,6 +44,179 @@ pub enum Platform {
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Linux,
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}
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/// 字重覆盖（一个族实际提供了哪些字重）。
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum WeightCoverage {
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/// 可变字体：一个连续区间（weight 轴）。
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Variable {
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/// 最细一档。
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min: u16,
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/// 最粗一档。
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max: u16,
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},
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/// 静态字体：离散字重表。
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Static(&'static [u16]),
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}
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impl WeightCoverage {
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/// 是否原生覆盖某档字重。
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pub fn supports(&self, weight: u16) -> bool {
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match self {
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WeightCoverage::Variable { min, max } => (*min..=*max).contains(&weight),
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WeightCoverage::Static(list) => list.contains(&weight),
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}
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}
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/// 最近的可选字重（静态表取绝对值最近；可变字体夹取到区间内）。
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pub fn nearest(&self, weight: u16) -> u16 {
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match self {
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WeightCoverage::Variable { min, max } => weight.clamp(*min, *max),
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WeightCoverage::Static(list) => {
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let mut best = list[0];
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let mut best_delta = u16::MAX;
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for candidate in *list {
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let delta = candidate.abs_diff(weight);
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if delta < best_delta {
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best = *candidate;
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best_delta = delta;
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}
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}
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best
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}
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}
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}
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}
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/// 一条字体栈项：族名 + 字重覆盖。
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub struct FontFace {
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/// 族名（只写名字，不带路径/文件名）。
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pub family: &'static str,
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/// 该族提供的字重。
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pub weights: WeightCoverage,
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}
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impl FontFace {
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/// 构造。
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pub const fn new(family: &'static str, weights: WeightCoverage) -> Self {
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Self { family, weights }
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}
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/// 该族是否原生覆盖某档字重。
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pub fn supports(&self, weight: crate::typography::Weight) -> bool {
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self.weights.supports(weight.value())
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}
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}
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/// 字重匹配的质量。
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum WeightMatch {
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/// 原生有这一档。
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Native,
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/// 同族最近档（差 <2 级）。
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Nearest,
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/// 差 ≥2 级，引擎只能合成加粗/减细（降级）。
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Synthetic,
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}
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/// 字重解析结果：最终用哪个族、哪个字重、是原生还是降级。
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub struct FontChoice {
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/// 选中的族名。
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pub family: &'static str,
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/// 请求的字重。
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pub requested: u16,
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/// 实际可用的字重。
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pub available: u16,
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/// 匹配质量。
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pub quality: WeightMatch,
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}
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impl FontChoice {
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/// 是否走了合成加粗（降级路径）。
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pub fn is_synthetic(&self) -> bool {
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self.quality == WeightMatch::Synthetic
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}
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}
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/// 字体族的用途分类（决定取哪条栈）。
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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pub enum FontFamily {
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/// 大字号展示（display/headline/title-large）：光学尺寸更大。
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Display,
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/// 正文（title/body/label）。
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Text,
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/// 等宽（日志、代码、版本号）。
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Mono,
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}
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// 字重覆盖来源等级：**B**（各平台字体规格/厂商文档；没有一份官方 token 文件能一次给全，
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// 所以按「常见安装」标定，并用测试钉死——改值要连带改测试与协作文档）。
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const W_VARIABLE_SEGOE: WeightCoverage = WeightCoverage::Variable { min: 300, max: 700 };
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const W_VARIABLE_SF: WeightCoverage = WeightCoverage::Variable { min: 100, max: 900 };
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const W_VARIABLE_NOTO: WeightCoverage = WeightCoverage::Variable { min: 100, max: 900 };
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const W_VARIABLE_CASCADIA: WeightCoverage = WeightCoverage::Variable { min: 200, max: 700 };
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const W_VARIABLE_JETBRAINS: WeightCoverage = WeightCoverage::Variable { min: 100, max: 800 };
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const W_STATIC_SEGOE: WeightCoverage = WeightCoverage::Static(&[300, 400, 600, 700]);
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const W_STATIC_YAHEI: WeightCoverage = WeightCoverage::Static(&[400, 700]);
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const W_STATIC_HELVETICA: WeightCoverage = WeightCoverage::Static(&[300, 400, 500, 700]);
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const W_STATIC_PINGFANG: WeightCoverage = WeightCoverage::Static(&[100, 200, 300, 400, 500, 600]);
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const W_STATIC_MENLO: WeightCoverage = WeightCoverage::Static(&[400, 700]);
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const W_STATIC_DEJAVU: WeightCoverage = WeightCoverage::Static(&[400, 700]);
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// 各平台字体栈（写成 const 数组，好让 `font_stack` 的 `const fn` 直接返回 `&'static [_]`）。
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const WIN_DISPLAY: [FontFace; 5] = [
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FontFace::new("Segoe UI Variable Display", W_VARIABLE_SEGOE),
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FontFace::new("Segoe UI", W_STATIC_SEGOE),
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FontFace::new("Microsoft YaHei UI", W_STATIC_YAHEI),
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FontFace::new("Microsoft YaHei", W_STATIC_YAHEI),
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FontFace::new("sans-serif", W_VARIABLE_NOTO),
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];
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const WIN_TEXT: [FontFace; 5] = [
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FontFace::new("Segoe UI Variable Text", W_VARIABLE_SEGOE),
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FontFace::new("Segoe UI", W_STATIC_SEGOE),
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FontFace::new("Microsoft YaHei UI", W_STATIC_YAHEI),
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FontFace::new("Microsoft YaHei", W_STATIC_YAHEI),
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FontFace::new("sans-serif", W_VARIABLE_NOTO),
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];
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const WIN_MONO: [FontFace; 4] = [
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FontFace::new("Cascadia Mono", W_VARIABLE_CASCADIA),
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FontFace::new("Consolas", W_STATIC_SEGOE),
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FontFace::new("Courier New", W_STATIC_MENLO),
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FontFace::new("monospace", W_STATIC_DEJAVU),
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];
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const MAC_DISPLAY: [FontFace; 4] = [
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FontFace::new("SF Pro Display", W_VARIABLE_SF),
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FontFace::new("Helvetica Neue", W_STATIC_HELVETICA),
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FontFace::new("PingFang SC", W_STATIC_PINGFANG),
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FontFace::new("sans-serif", W_VARIABLE_NOTO),
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];
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const MAC_TEXT: [FontFace; 4] = [
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FontFace::new("SF Pro Text", W_VARIABLE_SF),
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FontFace::new("Helvetica Neue", W_STATIC_HELVETICA),
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FontFace::new("PingFang SC", W_STATIC_PINGFANG),
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FontFace::new("sans-serif", W_VARIABLE_NOTO),
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];
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const MAC_MONO: [FontFace; 4] = [
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FontFace::new("SF Mono", W_VARIABLE_SF),
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FontFace::new("Menlo", W_STATIC_MENLO),
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FontFace::new("Monaco", W_STATIC_MENLO),
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FontFace::new("monospace", W_STATIC_DEJAVU),
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];
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const LINUX_SANS: [FontFace; 5] = [
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FontFace::new("Roboto", W_VARIABLE_NOTO),
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FontFace::new("Noto Sans", W_VARIABLE_NOTO),
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FontFace::new("Noto Sans CJK SC", W_VARIABLE_NOTO),
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FontFace::new("DejaVu Sans", W_STATIC_DEJAVU),
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FontFace::new("sans-serif", W_VARIABLE_NOTO),
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];
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const LINUX_MONO: [FontFace; 4] = [
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FontFace::new("JetBrains Mono", W_VARIABLE_JETBRAINS),
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FontFace::new("Noto Sans Mono", W_VARIABLE_NOTO),
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FontFace::new("DejaVu Sans Mono", W_STATIC_DEJAVU),
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FontFace::new("monospace", W_STATIC_DEJAVU),
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];
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impl Platform {
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/// 当前编译目标对应的平台（运行时用户覆盖请显式传 [`Platform`]）。
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pub const fn current() -> Self {
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@@ -36,146 +239,66 @@ impl Platform {
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}
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/// 字体族回退栈（由首选到兜底，最后一项是通用族名）。
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///
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/// iced/cosmic-text 按顺序找第一个装了的族；`sans-serif` / `monospace` 是通用兜底，
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/// 保证「一台干净安装的系统」也不会渲染成豆腐块。
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pub const fn font_stack(self, family: FontFamily) -> &'static [&'static str] {
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pub const fn font_stack(self, family: FontFamily) -> &'static [FontFace] {
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match (self, family) {
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// Win10 起 Segoe UI 一定在；Win11 有光学尺寸分离的 Variable 版。
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(Platform::Windows, FontFamily::Display) => &[
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"Segoe UI Variable Display",
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"Segoe UI",
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"Microsoft YaHei UI",
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"Microsoft YaHei",
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"sans-serif",
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],
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(Platform::Windows, FontFamily::Text) => &[
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"Segoe UI Variable Text",
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"Segoe UI",
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"Microsoft YaHei UI",
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"Microsoft YaHei",
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"sans-serif",
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],
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(Platform::Windows, FontFamily::Mono) => {
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&["Cascadia Mono", "Consolas", "Courier New", "monospace"]
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}
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// macOS 12+：SF Pro 分 Display/Text 两种光学尺寸；中文走苹方。
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(Platform::MacOs, FontFamily::Display) => &[
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"SF Pro Display",
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"Helvetica Neue",
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"PingFang SC",
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"sans-serif",
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],
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(Platform::MacOs, FontFamily::Text) => {
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&["SF Pro Text", "Helvetica Neue", "PingFang SC", "sans-serif"]
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}
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(Platform::MacOs, FontFamily::Mono) => &["SF Mono", "Menlo", "Monaco", "monospace"],
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// Linux：不假设发行版预装什么，Roboto/Noto 是最常见的两套。
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(Platform::Linux, FontFamily::Display) | (Platform::Linux, FontFamily::Text) => &[
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"Roboto",
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"Noto Sans",
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"Noto Sans CJK SC",
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"DejaVu Sans",
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"sans-serif",
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],
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(Platform::Linux, FontFamily::Mono) => &[
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"JetBrains Mono",
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"Noto Sans Mono",
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"DejaVu Sans Mono",
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"monospace",
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],
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(Platform::Windows, FontFamily::Display) => &WIN_DISPLAY,
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(Platform::Windows, FontFamily::Text) => &WIN_TEXT,
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(Platform::Windows, FontFamily::Mono) => &WIN_MONO,
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// macOS 12+：SF Pro 分 Display/Text 光学尺寸；中文走苹方（只到 600）。
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(Platform::MacOs, FontFamily::Display) => &MAC_DISPLAY,
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(Platform::MacOs, FontFamily::Text) => &MAC_TEXT,
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(Platform::MacOs, FontFamily::Mono) => &MAC_MONO,
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// Linux：不假设发行版预装什么，Roboto/Noto 是最常见的两套（Display 与 Text 同栈）。
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(Platform::Linux, FontFamily::Display | FontFamily::Text) => &LINUX_SANS,
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(Platform::Linux, FontFamily::Mono) => &LINUX_MONO,
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}
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}
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}
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/// 字体族的用途分类（决定取哪条栈）。
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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pub enum FontFamily {
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/// 大字号展示（display/headline）：光学尺寸更大。
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Display,
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/// 正文（title/body/label）。
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Text,
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/// 等宽（日志、代码、版本号）。
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Mono,
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}
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/// 该平台的**中文**兜底族（CJK 字形实际落到的那个）。
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///
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/// 注意：栈里的 CJK 族只是「缺字形时的候选」，最终由文本引擎逐字形回退决定；
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/// 这个函数把它单独暴露出来，好让调用方按模块文档的降级顺序处理字重。
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pub const fn cjk_face(self) -> FontFace {
|
||||
match self {
|
||||
Platform::Windows => FontFace::new("Microsoft YaHei UI", W_STATIC_YAHEI),
|
||||
Platform::MacOs => FontFace::new("PingFang SC", W_STATIC_PINGFANG),
|
||||
Platform::Linux => FontFace::new("Noto Sans CJK SC", W_VARIABLE_NOTO),
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
const PLATFORMS: [Platform; 3] = [Platform::Windows, Platform::MacOs, Platform::Linux];
|
||||
const FAMILIES: [FontFamily; 3] = [FontFamily::Display, FontFamily::Text, FontFamily::Mono];
|
||||
|
||||
#[test]
|
||||
fn font_stacks_are_well_formed() {
|
||||
for platform in PLATFORMS {
|
||||
for family in FAMILIES {
|
||||
let stack = platform.font_stack(family);
|
||||
assert!(
|
||||
!stack.is_empty(),
|
||||
"{} 的 {family:?} 栈为空",
|
||||
platform.name()
|
||||
);
|
||||
let last = stack[stack.len() - 1];
|
||||
let generic = match family {
|
||||
FontFamily::Mono => "monospace",
|
||||
_ => "sans-serif",
|
||||
/// 按栈顺序解析某档字重的落点（纯函数，不查系统）。
|
||||
///
|
||||
/// 规则：**优先原生**（栈里第一个真有的族）→ 都做不到时取首选族的最近档，
|
||||
/// 差距 ≥200 判为 [`WeightMatch::Synthetic`]。
|
||||
pub fn resolve_weight(
|
||||
self,
|
||||
family: FontFamily,
|
||||
weight: crate::typography::Weight,
|
||||
) -> FontChoice {
|
||||
let stack = self.font_stack(family);
|
||||
let requested = weight.value();
|
||||
for face in stack {
|
||||
if face.weights.supports(requested) {
|
||||
return FontChoice {
|
||||
family: face.family,
|
||||
requested,
|
||||
available: requested,
|
||||
quality: WeightMatch::Native,
|
||||
};
|
||||
assert_eq!(
|
||||
last,
|
||||
generic,
|
||||
"{} 的 {family:?} 栈必须以通用族名兜底",
|
||||
platform.name()
|
||||
);
|
||||
for name in stack {
|
||||
assert!(!name.is_empty());
|
||||
assert!(
|
||||
!name.contains(['/', '\\', '.', ':']),
|
||||
"字体栈只允许族名，不得出现路径/文件名：{name}"
|
||||
);
|
||||
assert!(
|
||||
name.is_ascii(),
|
||||
"族名应为 ASCII（非 ASCII 名交给系统匹配）：{name}"
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn display_and_text_stacks_differ_on_windows_and_macos() {
|
||||
assert_ne!(
|
||||
Platform::Windows.font_stack(FontFamily::Display)[0],
|
||||
Platform::Windows.font_stack(FontFamily::Text)[0]
|
||||
);
|
||||
assert_ne!(
|
||||
Platform::MacOs.font_stack(FontFamily::Display)[0],
|
||||
Platform::MacOs.font_stack(FontFamily::Text)[0]
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn chinese_fallback_is_present_but_not_first() {
|
||||
// 中文族名必须在栈里（否则 CJK 走系统随机匹配），但不能排第一（纯英文环境不加载中文字体）。
|
||||
for platform in PLATFORMS {
|
||||
let stack = platform.font_stack(FontFamily::Text);
|
||||
let cjk = ["Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC"];
|
||||
assert!(
|
||||
stack.iter().any(|name| cjk.contains(name)),
|
||||
"{} 的正文栈缺 CJK 兜底",
|
||||
platform.name()
|
||||
);
|
||||
assert!(
|
||||
!cjk.contains(&stack[0]),
|
||||
"{} 的首选字体不该是 CJK 族",
|
||||
platform.name()
|
||||
);
|
||||
let first = stack[0];
|
||||
let available = first.weights.nearest(requested);
|
||||
FontChoice {
|
||||
family: first.family,
|
||||
requested,
|
||||
available,
|
||||
quality: if available.abs_diff(requested) >= 200 {
|
||||
WeightMatch::Synthetic
|
||||
} else {
|
||||
WeightMatch::Nearest
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn current_platform_returns_a_stack() {
|
||||
let platform = Platform::current();
|
||||
assert!(!platform.font_stack(FontFamily::Text).is_empty());
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user