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https://github.com/servo/servo
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e5fbb3d487
Instead of using a simple `Atom` to identify a local font, use a data
structure. This allows us to carry more information necessary to
identify a local font (such as a path on MacOS). We need this for the
new version of WebRender, as fonts on MacOS now require a path.
This has a lot of benefits:
1. We can avoid loading fonts without paths on MacOS, which should
avoid a lot of problems with flakiness and ensure we always load the
same font for a given identifier.
2. This clarifies the difference between web fonts and local fonts,
though there is more work to do here.
3. This avoid a *lot* of font shenanigans, such as trying to work
backwards from the name of the font to the path of the font we
actually matched. In general, we can remove a lot of code trying to
accomplish these shenanigans.
4. Getting the font bytes always returns an `Arc` now avoiding an extra
full font copy in the case of Canvas.
79 lines
2.3 KiB
Rust
79 lines
2.3 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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// Test doesn't yet run on Mac, see https://github.com/servo/servo/pull/19928 for explanation.
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#[cfg(not(target_os = "macos"))]
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#[test]
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fn test_font_template_descriptor() {
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use std::fs::File;
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use std::io::prelude::*;
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use std::path::PathBuf;
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use gfx::font_cache_thread::FontIdentifier;
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use gfx::font_context::FontContextHandle;
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use gfx::font_template::{FontTemplate, FontTemplateDescriptor};
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use servo_url::ServoUrl;
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use style::values::computed::font::{FontStretch, FontStyle, FontWeight};
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fn descriptor(filename: &str) -> FontTemplateDescriptor {
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let mut path: PathBuf = [
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env!("CARGO_MANIFEST_DIR"),
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"tests",
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"support",
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"dejavu-fonts-ttf-2.37",
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"ttf",
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]
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.iter()
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.collect();
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path.push(format!("{}.ttf", filename));
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let file = File::open(path.clone()).unwrap();
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let mut template = FontTemplate::new(
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FontIdentifier::Web(ServoUrl::from_file_path(path).unwrap()),
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Some(file.bytes().map(|b| b.unwrap()).collect()),
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)
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.unwrap();
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let context = FontContextHandle::default();
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template.descriptor(&context).unwrap()
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}
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assert_eq!(
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descriptor("DejaVuSans"),
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FontTemplateDescriptor {
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weight: FontWeight::NORMAL,
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stretch: FontStretch::hundred(),
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style: FontStyle::NORMAL,
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}
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);
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assert_eq!(
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descriptor("DejaVuSans-Bold"),
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FontTemplateDescriptor {
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weight: FontWeight::BOLD,
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stretch: FontStretch::hundred(),
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style: FontStyle::NORMAL,
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}
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);
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assert_eq!(
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descriptor("DejaVuSans-Oblique"),
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FontTemplateDescriptor {
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weight: FontWeight::NORMAL,
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stretch: FontStretch::hundred(),
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style: FontStyle::ITALIC,
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}
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);
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assert_eq!(
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descriptor("DejaVuSansCondensed-BoldOblique"),
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FontTemplateDescriptor {
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weight: FontWeight::BOLD,
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stretch: FontStretch::from_percentage(0.875),
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style: FontStyle::ITALIC,
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}
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);
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}
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