Previously, all widgets would be listed in accesskit as children of the
toplevel window.
With this change, they will be reported as child of the `egui::Window`
they are in, Which should increase parseability of the ui for
screenreaders and integration tests.
Added an accesskit test to check that it is indeed working.
Co-authored-by: Wybe Westra <w.westra@kwantcontrols.nl>
Since textedit is doing the justify layout calculation itself, we need
to report the original desired_size as intrinsic size, instead of the
value passed to allocate_space.
I wonder though, is it still necessary that the TextEdit does the
justify calculation itself instead of relying on the ui layout to do it?
As far as I understand it, justify should be handled by the
ui.allocate_space call.
The check.sh script was broken in #5166, this fixes it
* Related to #5297
* [x] I have followed the instructions in the PR template
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
make it easier to add fonts.
For example if I want to add a custom FontFamily or if the user wants to
add a Chinese fallback
* [x] I have followed the instructions in the PR template
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
winit::Window::inner_size returns size of safe area on iOS. use
winit::Window::outer_size on iOS
The dimensions of outer_size include the title bar and borders, but as
far as I know there is no way to actually display the title bar or
borders on iOS so it should be fine.
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* Closes#3547
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---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
This shortcut was previously triggering the Undo action due to the
matches_logically method ignoring the state of the Shift key. This was
solved by simply inverting the order of the undo and redo arms, so the
undo is not matched if the shortcut corresponds to redo.
* Closes <https://github.com/emilk/egui/issues/5255>
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Run this code
```rs
CentralPanel::default().show(ctx, |ui| {
Sides::new().show(
ui,
|ui| {
ui.label("1");
},
|ui| {
ui.label("2");
},
);
Sides::new().show(
ui,
|ui| {
ui.label("11");
},
|ui| {
ui.label("22");
},
);
Sides::new().show(
ui,
|ui| {
ui.label("111");
},
|ui| {
ui.label("222");
},
);
});
```
Before
After
This should hopefully make it easier for egui contributors and
egui_kittest users to understand the snapshot tests
* [X] I have followed the instructions in the PR template
- closes#3491
- closes#3926
This adds a testing library to egui based on
[kittest](https://github.com/rerun-io/kittest). Kittest is a new
[AccessKit](https://github.com/AccessKit/accesskit/)-based testing
library. The api is inspired by the js
[testing-library](https://testing-library.com/) where the idea is also
to query the dom based on accessibility attributes.
We made kittest with egui in mind but it should work with any rust gui
framework with AccessKit support.
It currently has support for:
- running the egui app, frame by frame
- building the AccessKit tree
- ergonomic queries via kittest
- via e.g. get_by_name, get_by_role
- simulating events based on the accesskit node id
- creating arbitrary events based on Harness::input_mut
- rendering screenshots via wgpu
- snapshot tests with these screenshots
A simple test looks like this:
```rust
fn main() {
let mut checked = false;
let app = |ctx: &Context| {
CentralPanel::default().show(ctx, |ui| {
ui.checkbox(&mut checked, "Check me!");
});
};
let mut harness = Harness::builder().with_size(egui::Vec2::new(200.0, 100.0)).build(app);
let checkbox = harness.get_by_name("Check me!");
assert_eq!(checkbox.toggled(), Some(Toggled::False));
checkbox.click();
harness.run();
let checkbox = harness.get_by_name("Check me!");
assert_eq!(checkbox.toggled(), Some(Toggled::True));
// You can even render the ui and do image snapshot tests
#[cfg(all(feature = "wgpu", feature = "snapshot"))]
egui_kittest::image_snapshot(&egui_kittest::wgpu::TestRenderer::new().render(&harness), "readme_example");
}
```
~Since getting wgpu to run in ci is a hassle, I'm taking another shot at
creating a software renderer for egui (ideally without a huge dependency
like skia)~ (this didn't work as well as I hoped and it turns out in CI
you can just run tests on a mac runner which comes with a real GPU)
Here is a example of a failed snapshot test in ci, it will say which
snapshot failed and upload an artifact with the before / after and diff
images:
https://github.com/emilk/egui/actions/runs/11183049487/job/31090724606?pr=5166
* Closes#5224
I'm unfamiliar with wgpu, so I'd like someone to confirm, that calling
`wgpu::Texture` _after_ `wgpu::Queue::submit` is in fact the right thing
to do.
---------
Co-authored-by: Andreas Reich <r_andreas2@web.de>
Fixes#5174.
The drag velocity was not being updated unless the cursor counted as
"dragging", which only happens when it's in motion. This effectively
guarantees that the drag velocity will never be zero, even if the cursor
is not moving, and results in spurious scroll velocity being applied
when the cursor is released.
Instead, we update the velocity only when the drag is stopped, which is
when the kinetic scrolling actually needs to begin. Note that we
immediately *apply* the scroll velocity on the same frame that we first
set it, to avoid a 1-frame gap where the scroll area doesn't move.
I believe that *not* setting `scroll_stuck_to_end` and `offset_target`
when the drag is released is the correct thing to do, as they should
apply immediately once the user stops dragging. Should we maybe clear
the drag velocity instead if `scroll_stuck_to_end` is true or
`offset_target` exists?
* Closes#5174
* [x] I have followed the instructions in the PR template
This adds a new `Ui::unique_id` used in `Ui::response`.
I'll make a follow-up PR where the old `id` is renamed `stable_id`, and
deprecate `fn id` to force users to think through which `id` they want.
* Closes https://github.com/emilk/egui/issues/5190
Since ui's initial sound is a "y", it should be "a ui", not "an ui".
Replaced case-sensitively using regex `([aA])n ([uU][iI])` replacement
`$1 $2`
* [x] I have followed the instructions in the PR template
This will allow disabling the animation that occurs during
`scroll_to_row` calls. Follows the same coding style as the other scroll
options in `TableBuilder`.
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
It cannot be made const with the current version of Rust, and that is
counterintuitive since it does compile-time checks, so we make that
clear in the documentation. It might be possible to make it const once
MSRV is bumped to 1.82.
* See <https://github.com/emilk/egui/issues/5160>
* [x] I have followed the instructions in the PR template
Affects `.on_hover_text(…)` with dynamic content (i.e. content that
changes over time).
* Closes https://github.com/emilk/egui/issues/5167
`.on_hover_ui` with dynamic content can still hit the shrinking problem.
The general solution depends on solving
https://github.com/emilk/egui/issues/5138 but a work-around is to add
this to your tooltips:
```diff
response.on_hover_ui(|ui| {
+ ui.set_max_width(ui.spacing().tooltip_width);
// …
});
```
* Closes https://github.com/emilk/egui/pull/5106
* Closes https://github.com/emilk/egui/issues/5084
Protect against rounding errors in egui layout code.
Say the user asks to wrap at width 200.0.
The text layout wraps, and reports that the final width was 196.0
points.
This than trickles up the `Ui` chain and gets stored as the width for a
tooltip (say).
On the next frame, this is then set as the max width for the tooltip,
and we end up calling the text layout code again, this time with a wrap
width of 196.0.
Except, somewhere in the `Ui` chain with added margins etc, a rounding
error was introduced,
so that we actually set a wrap-width of 195.9997 instead.
Now the text that fit perfectly at 196.0 needs to wrap one word earlier,
and so the text re-wraps and reports a new width of 185.0 points.
And then the cycle continues.
So this PR limits the text wrap-width to be an integer.
Related issues:
* https://github.com/emilk/egui/issues/4927
* https://github.com/emilk/egui/issues/4928
* https://github.com/emilk/egui/issues/5163
---
Pleas test this @rustbasic
A very common usability issue on egui-wgpu callbacks is that `paint`
can't access any data that doesn't strictly outlive the callback
resources' data. E.g. if the callback resources have an `Arc` to some
resource manager, you can't easily pull out resources since you
statically needed to ensure that those resource references outlived the
renderpass, whose lifetime was only constrained to the callback
resources themselves.
Wgpu 22 no longer has this restriction! Its (render/compute-)passes take
care of the lifetime of any passed resource internally. The lifetime
constraint is _still_ opt-out since it protects from a common runtime
error of adding commands/passes on the parent encoder while a previously
created pass wasn't closed yet.
This is not a concern in egui-wgpu since the paint method where we have
to access the render pass doesn't even have access to the encoder!
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* The PR title is what ends up in the changelog, so make it descriptive!
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* If it is a non-trivial addition, consider adding a demo for it to
`egui_demo_lib`, or a new example.
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Adds support for mipmaps in the `glow` backend.
Should be possible to implement for `wgpu` in the future as well, but
requires a custom compute kernel.
