This commit is all about strings, not about line layout at all. When
laying out text, we use a line layout cache to avoid roundtrips to
system layout engine where possible. This makes it so that we might end
up not needing an owned version of text to insert into the cache, as we
might get a cached version.
The API boundary of line layout accepted text to be laid out as &str. It
then performed cache lookup (which didn't require having an owned
version) and only resorted to making an owned version when needed. As it
turned out though, exact cache hits are quite rare and we end up needing
owned version more often than not. The callers of line layout either
dealt with SharedStrings or owned Strings. Due to coercing them into
&str, we were ~always copying text into a new string (unless there was a
same-frame-hit). This is a bit wasteful, thus this PR generifies the API
a bit to make it easier to reuse existing string allocations if there
are any.
Benchmark scenario: scrolling down page-by-page through editor_tests (I
ran the same scenario twice):
Release Notes:
- N/A
Closes https://github.com/zed-industries/zed/issues/4351
Applies the same splitting mechanism, as Zed's central pane has, to the
terminal panel.
Similar navigation, splitting and (de)serialization capabilities are
supported.
Notable caveats:
* zooming keeps the terminal splits' ratio, rather expanding the
terminal pane
* on macOs, central panel is split with `cmd-k up/down/etc.` but `cmd-k`
is a "standard" terminal clearing keybinding on macOS, so terminal panel
splitting is done via `ctrl-k up/down/etc.`
* task terminals are "split" into regular terminals, and also not
persisted (same as currently in the terminal)
Seems ok for the initial version, we can revisit and polish things
later.
Release Notes:
- Added the ability to split the terminal panel
Turns out that in the case you have a somehow valid utf-8 file that
contains almost all ascii control characters, we run out of element
arena space.
Fixes: #20652
Release Notes:
- Fixed a crash when opening a file containing a very large number of
ascii control characters on one line.
Supersedes https://github.com/zed-industries/zed/pull/12090fixes#5180fixes#5055
See original PR for an example of the feature at work.
This PR changes the settings interface to be backwards compatible, and
adds the `ui_font_fallbacks`, `buffer_font_fallbacks`, and
`terminal.font_fallbacks` settings.
Release Notes:
- Added support for font fallbacks via three new settings:
`ui_font_fallbacks`, `buffer_font_fallbacks`, and
`terminal.font_fallbacks`.(#5180, #5055).
---------
Co-authored-by: Junkui Zhang <364772080@qq.com>
Release Notes:
- Fixed line wrap for CJK characters.
## Demo
https://github.com/zed-industries/zed/assets/5518/c6695bb4-b170-4ce0-9a84-c36b051de438
Fix issues: #4623#11202
### Render case
```
## fr
Bien démarrer avec la documentation GitHub Découvrez comment commencer à créer, à livrer et à gérer des logiciels avec GitHub. Explorez nos produits, inscrivez-vous pour obtenir un compte et connectez-vous à la plus grande communauté de développement du monde.
## zh
GitHub 入门文档 了解如何开始构建、运输和维护具有 GitHub 的软件。 了解我们的产品，注册一个帐户，与世界上最大的发展社区建立联系。
## es
Documentación sobre la introducción a GitHub Aprende cómo comenzar a crear, enviar y mantener software con GitHub. Explora nuestros productos, regístrate para una cuenta y conéctate con la comunidad de desarrollo más grande del mundo.
## kr
GitHub 설명서 시작 GitHub를 사용하여 소프트웨어 빌드, 납품 및 유지 관리를 시작하는 방법을 알아봅니다. 제품을 탐색하고, 계정에 등록하고, 세계 최대의 개발 커뮤니티와 연결합니다.
## ja
GitHub の概要に関するドキュメント GitHub を使用してソフトウェアの構築、出荷、および保守を始める方法を学びます。 当社の製品を探索し、アカウントにサインアップして、世界最大の開発コミュニティと繋がりましょう。
## pt
Documentação de introdução ao GitHub Aprenda a começar a criar, enviar e manter um software com a GitHub. Explore nossos produtos, inscreva-se em uma conta e conecte-se com a maior comunidade de desenvolvimento do mundo.
## ru
Начало работы с документацией по GitHub Узнайте, как начать создание, доставку и обслуживание программного обеспечения с помощью GitHub. Изучите наши продукты, зарегистрируйте учетную запись и присоединитесь к крупнейшему в мире сообществу разработчиков.
```
The previous implementation that I implemented had two issues:
1. It did not throw an error when the user input some invalid values
such as "panic".
2. The feature tag for OpenType fonts should be a combination of letters
and digits. We only checked if the input was an ASCII character, which
could lead to undefined behavior.
Closes#13517
Release Notes:
- N/A
Note:
- We have disabled all tests that rely on Postgres in the Linux CI. We
only really need to test these once, and as macOS is our team's primary
platform, we'll only enable them on macOS for local reproduction.
- We have disabled all tests that rely on the font metrics. We
standardized on Zed Mono in many fonts, but our CoreText Text System and
Cosmic Text System proved to be very different in effect. We should
revisit if we decide to standardize our text system across platforms
(e.g. using Harfbuzz everywhere)
- Extended the condition timeout significantly. Our CI machines are slow
enough that this is causing spurious errors in random tests.
Release Notes:
- N/A
---------
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
This pull request replaces the static `⋯` character we used to insert
when folding a range with a custom render function that return an
`AnyElement`. We plan to use this in the assistant, but for now this
should be behavior-preserving.
Release Notes:
- N/A
---------
Co-authored-by: Nathan <nathan@zed.dev>
Co-authored-by: Conrad <conrad@zed.dev>
Now (on `macOS` and `Windows`) we can set font feature value:
```rust
"buffer_font_features": {
"cv01": true,
"cv03": 3,
"cv09": 1,
"VSAH": 7,
"VSAJ": 8
}
```
And one can still use `"cv01": true`.
https://github.com/zed-industries/zed/assets/14981363/3e3fcf4f-abdb-4d9e-a0a6-71dc24a515c2
Release Notes:
- Added font feature values, now you can set font features like `"cv01":
7`.
---------
Co-authored-by: Mikayla <mikayla@zed.dev>
This PR brings support for all `OpenType` font features to
`macOS(v10.10+)`. Now, both `Windows`(with #10756 ) and `macOS` support
all font features.
Due to my limited familiarity with the APIs on macOS, I believe I have
made sure to call `CFRelease` on all variables where it should be
called.
Close#11486 , and I think the official website's
[documentation](https://zed.dev/docs/configuring-zed) can be updated
after merging this PR.
> Zed supports a subset of OpenType features that can be enabled or
disabled for a given buffer or terminal font. The following OpenType
features can be enabled or disabled too: calt, case, cpsp, frac, liga,
onum, ordn, pnum, ss01, ss02, ss03, ss04, ss05, ss06, ss07, ss08, ss09,
ss10, ss11, ss12, ss13, ss14, ss15, ss16, ss17, ss18, ss19, ss20, subs,
sups, swsh, titl, tnum, zero.
https://github.com/zed-industries/zed/assets/14981363/44e503f9-1496-4746-bc7d-20878c6f8a93
Release Notes:
- Added support for **all** `OpenType` font features to macOS.
This pull request introduces a new `markdown` crate which is capable of
parsing and rendering a Markdown source. One of the key additions is
that it enables text selection within a `Markdown` view. Eventually,
this will replace `RichText` but for now the goal is to use it in the
assistant revamped assistant in the spirit of making progress.
<img width="711" alt="image"
src="https://github.com/zed-industries/zed/assets/482957/b56c777b-e57c-42f9-95c1-3ada22f63a69">
Note that this pull request doesn't yet use the new markdown renderer in
`assistant2`. This is because we need to modify the assistant before
slotting in the new renderer and I wanted to merge this independently of
those changes.
Release Notes:
- N/A
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Conrad <conrad@zed.dev>
Co-authored-by: Alp <akeles@umd.edu>
Co-authored-by: Zachiah Sawyer <zachiah@proton.me>
The new `ElementContext` was originally introduced to ensure the element
APIs could only be used inside of elements. Unfortunately, there were
many places where some of those APIs needed to be used, so
`WindowContext::with_element_context` was introduced, which defeated the
original safety purposes of having a specific context for elements.
This pull request merges `ElementContext` into `WindowContext` and adds
(debug) runtime checks to APIs that can only be used during certain
phases of element drawing.
Release Notes:
- N/A
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
This pull request introduces the new
`ElementContext::request_autoscroll(bounds)` and
`ElementContext::take_autoscroll()` methods in GPUI. These new APIs
enable container elements such as `List` to change their scroll position
if one of their children requested an autoscroll. We plan to use this in
the revamped assistant.
As a drive-by, we also:
- Renamed `Element::before_layout` to `Element::request_layout`
- Renamed `Element::after_layout` to `Element::prepaint`
- Introduced a new `List::splice_focusable` method to splice focusable
elements into the list, which enables rendering offscreen elements that
are focused.
Release Notes:
- N/A
---------
Co-authored-by: Nathan <nathan@zed.dev>
See https://zed.dev/channel/gpui-536
Fixes https://github.com/zed-industries/zed/issues/9010
Fixes https://github.com/zed-industries/zed/issues/8883
Fixes https://github.com/zed-industries/zed/issues/8640
Fixes https://github.com/zed-industries/zed/issues/8598
Fixes https://github.com/zed-industries/zed/issues/8579
Fixes https://github.com/zed-industries/zed/issues/8363
Fixes https://github.com/zed-industries/zed/issues/8207
### Problem
After transitioning Zed to GPUI 2, we started noticing that interacting
with the mouse on many UI elements would lead to a pretty annoying
flicker. The main issue with the old approach was that hover state was
calculated based on the previous frame. That is, when computing whether
a given element was hovered in the current frame, we would use
information about the same element in the previous frame.
However, inspecting the previous frame tells us very little about what
should be hovered in the current frame, as elements in the current frame
may have changed significantly.
### Solution
This pull request's main contribution is the introduction of a new
`after_layout` phase when redrawing the window. The key idea is that
we'll give every element a chance to register a hitbox (see
`ElementContext::insert_hitbox`) before painting anything. Then, during
the `paint` phase, elements can determine whether they're the topmost
and draw their hover state accordingly.
We are also removing the ability to give an arbitrary z-index to
elements. Instead, we will follow the much simpler painter's algorithm.
That is, an element that gets painted after will be drawn on top of an
element that got painted earlier. Elements can still escape their
current "stacking context" by using the new `ElementContext::defer_draw`
method (see `Overlay` for an example). Elements drawn using this method
will still be logically considered as being children of their original
parent (for keybinding, focus and cache invalidation purposes) but their
layout and paint passes will be deferred until the currently-drawn
element is done.
With these changes we also reworked geometry batching within the
`Scene`. The new approach uses an AABB tree to determine geometry
occlusion, which allows the GPU to render non-overlapping geometry in
parallel.
### Performance
Performance is slightly better than on `main` even though this new
approach is more correct and we're maintaining an extra data structure
(the AABB tree).
Release Notes:
- Fixed a bug that was causing popovers to flicker.
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Thorsten <thorsten@zed.dev>
Reverts zed-industries/zed#7481
This would regress performance because we'd be using the standard
library's hash maps everywhere, so reverting for now.
This improves a performance problem we were observing when having
multiple windows updating at the same time, where each window would
invalidate the other window's layout cache.
Release Notes:
- Improved performance when having multiple Zed windows open.
Co-authored-by: Max Brunsfeld <max@zed.dev>
