I got annoyed by all the slightly different variations of "collect
snapshot results and unwrap them at the end of test" I've written, so I
added a struct to make this nice and simple.
One controversial thing: It panics when dropped. I wanted to ensure
people cannot forget to unwrap the results at the end, and this was the
best thing I could come up with. I don't think this is possible via
clippy lint or something like that.
* [x] I have followed the instructions in the PR template
Breaking change!
* `Rounding` -> `CornerRadius`
* `rounding` -> `corner_radius`
This is to:
* Clarify
* Conform to other systems (e.g. Figma)
* Avoid confusion with `GuiRounding`
## Defining what `Rounding` is
This PR defines what `Rounding` means: it is the corner radius of
underlying `RectShape` rectangle. If you use `StrokeKind::Inside`, this
means the rounding is of the outer part of the stroke. Conversely, if
you use `StrokeKind::Outside`, the stroke is outside the rounded
rectangle, so the stroke has an inner radius or `rounding`, and an outer
radius that is larger by `stroke.width`.
This definitions is the same as Figma uses.
## Improving general shape rendering
The rendering of filled shapes (rectangles, circles, paths, bezier) has
been rewritten. Instead of first painting the fill with the stroke on
top, we now paint them as one single mesh with shared vertices at the
border. This has several benefits:
* Less work (faster and with fewer vertices produced)
* No overdraw (nicer rendering of translucent shapes)
* Correct blending of stroke and fill
The logic for rendering thin strokes has also been improved, so that the
width of a stroke of `StrokeKind::Outside` never affects the filled area
(this used to be wrong for thin strokes).
## Improving of rectangle rendering
Rectangles also has specific improvements in how thin rectangles are
painted.
The handling of "Blur width" is also a lot better, and now works for
rectangles with strokes.
There also used to be bugs with specific combinations of corner radius
and stroke width, that are now fixed.
## But why?
With the new `egui::Scene` we end up with a lot of zoomed out shapes,
with sub-pixel strokes. These need to look good! One thing led to
another, and then I became obsessive 😅
## Tessellation Test
In order to investigate the rendering, I created a Tessellation Test in
the `egui_demo_lib`.
[Try it
here](https://egui-pr-preview.github.io/pr/5669-emilkimprove-tessellator)
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* ~Closes <https://github.com/emilk/egui/issues/THE_RELEVANT_ISSUE>~
(just a quick typo fix)
* [x] I have followed the instructions in the PR template
It used to be that `UPDATE_SNAPSHOTS=true cargo test --all-features`
would stop on the first crate with a failure, requiring you to run it
multiple times, which is annoying, and a waste of time.
This is a breaking change, requiring users to think about wether the
stroke is inside/centered/outside the rect.
When in doubt, add `egui::StrokeKind::Inside` to the function call.
Adds `RectShape::stroke_kind` so you can select if the stroke goes
inside, outside, or is centered on the rectangle.
Also adds `RectShape::round_to_pixels` so you can override
`TessellationOptions::round_rects_to_pixels`.
This is similar to `ScrollArea`, but:
* Supports zooming
* Has no scroll bars
* Has no limits on the scrolling
## TODO
* [x] Automatic sizing of `Scene`s outer bounds
* [x] Fix text selection in scenes
* [x] Implement `fit_rect`
* [x] Document / improve API
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
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This pull request fixes a subset of #5492 by saving the application
state when the `suspended` event is received on Android. This way, even
if the user exits the app and closes it manually right after changing
some state, it will be saved since `suspended` gets fired when the app
is exited. It does not fix the `on_exit` function not being fired - this
seems to be a winit bug (the `exiting` function in the winit application
handler trait is not called on exit). Once it gets fixed, it may be
possible to remove logic introduced by this PR (however, I am not sure
how it would handle the app being killed by the system when in the
background, that would have to be tested).
I've tested the logic by:
* Leaving from the app to the home screen, then killing it from the
"recent apps" menu
* Leaving from the app to the "recent apps" menu and killing it
* Restarting the device while the app was running
In all of these instances, the state was saved (the last one being a
pleasant surprise). It was tested on the repository mentioned in #5492
with my forked repository as the source for eframe (I unfortunately am
not able to test it in a larger project of mine due to dependence on
"3rd party" egui libraries (like egui_notify) which do not compile along
with the master branch of eframe (different versions of egui), but I
believe it should work in the same manner in all scenarios). Tests were
conducted on a Galaxy Tab S8 running Android 14, One UI 6.1.1.
CI passed on my fork.
* [x] I have followed the instructions in the PR template
* Closes https://github.com/emilk/egui/issues/5246
Tested on
* [x] Chromium
* [x] Firefox
* [x] Safari
On Chromium and Firefox we get one annoying frame with the wrong size,
which can mess up the layout of egui apps, but this PR is still a huge
improvement, and I don't want to spend more time on this right now.
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## Changes
- Use Python 3 in `scripts/lint.py`.
## Why
Some modern OS and distributions do not provide Python 2 by default.
This includes recent macOS versions.
I see that `scripts/generate_changelog.py` already uses Python 3, so I
don't think this change should be controversial.
Without this change, I am unable to run `./scripts/check.sh` on macOS
15.2 without installing Python 2 or adding alias for `python`
executable.
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* Remove references to `glium` backend, because it is deprecated since
egui v0.18.0
* [x] I have followed the instructions in the PR template
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* Help on https://github.com/emilk/egui/issues/3653
* [x] I have followed the instructions in the PR template
The next version of the `objc2` framework crates will have a bunch of
default features enabled, see
https://github.com/madsmtm/objc2/issues/627, so this PR pre-emptively
disables them, so that your compile times down blow up once you upgrade
to the next version (which is yet to be released, but will be soon).
* [x] I have followed the instructions in the PR template
`egui:🆔:IdSet` and `egui:🆔:IdMap` were already optimized to not do
additional hashing (because the `Id` already is a hash), but now they
are just type aliases for `nohash_hasher::IntSet/IntMap`.
See https://crates.io/crates/nohash-hasher for more
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This change discards widgets which are fully covered by another widget
in a higher layer from the hit test algorithm.
* Closes <https://github.com/emilk/egui/issues/5498>
* [x] I have followed the instructions in the PR template
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
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* Derive Debug for RichText
* [x] I have followed the instructions in the PR template
Lucas Meurer
Emil Ernerfeldt
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Joshua Holmes
n4n5
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Mads Marquart
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TÖRÖK Attila
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