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>
This PR extends the `experimental.theme_overrides` to allow overriding
the player colors.
Release Notes:
- Added the ability to override player colors using
`experimenta.theme_overrides`.
This practice makes it difficult to locate todo!s in my code when I'm
working. Let's take out the bang if we want to keep doing this.
Release Notes:
- N/A
This PR is a follow-up to #7084, where I noted that I wasn't satisfied
with using `SharedUri` to represent both URIs and paths on the local
filesystem:
> I'm still not entirely happy with this naming, as the file paths that
we can store in here are not _really_ URIs, as they are lacking a
protocol.
>
> I want to explore changing `SharedUri` / `SharedUrl` back to alway
storing a URL and treat local filepaths differently, as it seems we're
conflating two different concerns under the same umbrella, at the
moment.
`SharedUri` has now been reverted to just containing a `SharedString`
with a URI.
`ImageSource` now has a new `File` variant that is used to load an image
from a `PathBuf`.
Release Notes:
- N/A
This PR renames `SharedUrl` to `SharedUri` to better reflect its intent.
I'm still not entirely happy with this naming, as the file paths that we
can store in here are not _really_ URIs, as they are lacking a protocol.
I want to explore changing `SharedUri` / `SharedUrl` back to alway
storing a URL and treat local filepaths differently, as it seems we're
conflating two different concerns under the same umbrella, at the
moment.
Release Notes:
- N/A
This PR implements support for loading and displaying images from a
local file using gpui's `img` element.
API Changes:
- Changed `SharedUrl` to `SharedUrl::File`, `SharedUrl::Network`
Usage:
```rust
// load from network
img(SharedUrl::network(...)) // previously img(SharedUrl(...)
// load from filesystem
img(SharedUrl::file(...))
```
This will be useful when implementing markdown image support, because we
need to be able to render images from the filesystem (relative/absolute
path), e.g. when implementing markdown preview #5064.
I also added an example `image` to the gpui crate, let me know if this
is useful. Showcase:
<img width="872" alt="image"
src="https://github.com/zed-industries/zed/assets/53836821/b4310a26-db81-44fa-9a7b-61e7d0ad4349">
**Note**: The example is fetching images from [Lorem
Picsum](https://picsum.photos) ([Github
Repo](https://github.com/DMarby/picsum-photos)), which is a free
resource for fetching images in a specific size. Please let me know if
you're okay with using this in the example.
This PR adds more terminal colors that were present in the Zed1 themes
to the Zed2 theme.
Namely, we now have the `dim_` variants for the various ANSI colors and
various `foreground` colors.
Release Notes:
- Improved terminal colors.
This PR removes the `Default` impl for `StatusColors`.
Since we need default light and dark variants for `StatusColors`, we
can't use a single `Default` impl.
Release Notes:
- N/A
Andrew LyginandMarshall Bowers
Bennet Bo Fenner
Christian Clauss
Mikayla
Nate ButlerandAntonio Scandurra
Conrad Irwin
Max BrunsfeldandMikayla