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<!-- Please read the "Making a PR" section of [`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/main/CONTRIBUTING.md) before opening a Pull Request! * Keep your PR:s small and focused. * The PR title is what ends up in the changelog, so make it descriptive! * If applicable, add a screenshot or gif. * If it is a non-trivial addition, consider adding a demo for it to `egui_demo_lib`, or a new example. * Do NOT open PR:s from your `master` branch, as that makes it hard for maintainers to test and add commits to your PR. * Remember to run `cargo fmt` and `cargo clippy`. * Open the PR as a draft until you have self-reviewed it and run `./scripts/check.sh`. * When you have addressed a PR comment, mark it as resolved. Please be patient! I will review your PR, but my time is limited! --> * Closes N/A * [x] I have followed the instructions in the PR template This was mostly from last month, but I never got around to submitting it. This PR adds font variation coordinates to the `TextFormat` struct, and uses them when rendering text. The coordinates are stored in a `SmallVec`; I've chosen to store up to 2 inline, which makes it take up 24 bytes (the minimum possible for a `SmallVec`). The variation axis tags are stored as the `font_types::Tag` type, which I've chosen to re-export from `epaint::text`. The variation coordinates are resolved to a `skrifa::Location` during font rendering/scaling, and are cached in the same way as all the other scaled metrics. I've renamed the `ScaledMetrics` struct to `StyledMetrics`, since it now also contains the resolved variation coordinates. I haven't benchmarked the performance of text layout with variation coordinates, but the existing text layout performance is unchanged. I've replaced the API for manually overriding a font's weight (https://github.com/emilk/egui/pull/7790) with an API for manually overriding any variation coordinates via `FontTweak`. This should support the same use case as #7790 while being substantially more flexible. I have *not* yet added any higher-level API for mapping style attributes (weight, width, slant, etc) to variation coordinates or to different font faces within a single family. That's a pretty huge can of worms, and it'd involve rethinking the split between `FontId` and `TextFormat` (and whether `FontId` is so big that we should provide a way to reuse it). This API is intentionally pretty low-level for now. Likewise, I've intentionally not used variation coordinates when computing a font's row height. I can't think of any fonts that change their vertical metrics depending on variation axes, so this should be fine for now. --------- Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
97 lines
2.9 KiB
TOML
97 lines
2.9 KiB
TOML
[package]
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name = "epaint"
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version.workspace = true
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authors = ["Emil Ernerfeldt <emil.ernerfeldt@gmail.com>"]
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description = "Minimal 2D graphics library for GUI work"
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edition.workspace = true
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rust-version.workspace = true
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homepage = "https://github.com/emilk/egui/tree/main/crates/epaint"
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license = "MIT OR Apache-2.0"
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readme = "README.md"
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repository = "https://github.com/emilk/egui/tree/main/crates/epaint"
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categories = ["graphics", "gui"]
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keywords = ["graphics", "gui", "egui"]
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include = ["../LICENSE-APACHE", "../LICENSE-MIT", "**/*.rs", "Cargo.toml"]
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[lints]
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workspace = true
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[package.metadata.docs.rs]
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all-features = true
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rustdoc-args = ["--generate-link-to-definition"]
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[lib]
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[features]
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default = ["default_fonts"]
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## [`bytemuck`](https://docs.rs/bytemuck) enables you to cast [`Vertex`] to `&[u8]`.
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bytemuck = ["dep:bytemuck", "emath/bytemuck", "ecolor/bytemuck"]
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## [`cint`](https://docs.rs/cint) enables interoperability with other color libraries.
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cint = ["ecolor/cint"]
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## Enable the [`hex_color`] macro.
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color-hex = ["ecolor/color-hex"]
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## If set, epaint will use `include_bytes!` to bundle some fonts.
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## If you plan on specifying your own fonts you may disable this feature.
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default_fonts = ["epaint_default_fonts"]
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## [`mint`](https://docs.rs/mint) enables interoperability with other math libraries such as [`glam`](https://docs.rs/glam) and [`nalgebra`](https://docs.rs/nalgebra).
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mint = ["emath/mint"]
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## Enable parallel tessellation using [`rayon`](https://docs.rs/rayon).
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##
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## This can help performance for graphics-intense applications.
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rayon = ["dep:rayon"]
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## Allow serialization using [`serde`](https://docs.rs/serde).
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serde = ["dep:serde", "ahash/serde", "emath/serde", "ecolor/serde", "font-types/serde", "smallvec/serde"]
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## Change Vertex layout to be compatible with unity
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unity = []
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## Override and disable the unity feature
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## This exists, so that when testing with --all-features, snapshots render correctly.
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_override_unity = []
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[dependencies]
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emath.workspace = true
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ecolor.workspace = true
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ahash.workspace = true
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font-types.workspace = true
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log.workspace = true
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nohash-hasher.workspace = true
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parking_lot.workspace = true # Using parking_lot over std::sync::Mutex gives 50% speedups in some real-world scenarios.
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profiling.workspace = true
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self_cell.workspace = true
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skrifa.workspace = true
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smallvec.workspace = true
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vello_cpu.workspace = true
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#! ### Optional dependencies
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bytemuck = { workspace = true, optional = true, features = ["derive"] }
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## Enable this when generating docs.
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document-features = { workspace = true, optional = true }
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rayon = { workspace = true, optional = true }
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## Allow serialization using [`serde`](https://docs.rs/serde) .
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serde = { workspace = true, optional = true, features = ["derive", "rc"] }
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epaint_default_fonts = { workspace = true, optional = true }
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[dev-dependencies]
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criterion.workspace = true
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mimalloc.workspace = true
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similar-asserts.workspace = true
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[[bench]]
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name = "benchmark"
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harness = false
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