This is a really small PR so I am skipping the issue (based on
contributing.md). This change adds an optional field and thus non
breaking for the API.
I ran into an issue during my development of an alerts manager widget
([see PR](https://github.com/blackberryfloat/egui_widget_ext/pull/2))
where I needed a scrollable overlay that did not block clicking areas of
a parent widget when my alerts did not take up the entire parent. To
achieve this I detect the sizing pass via the invisible flag and only
render the alerts content and then on the next pass I add the scroll bar
in around the alert content. Whenever the alert content changed though I
would need to create a new Area with a new id to get proper sizing. That
is a memory leak so I wanted to reset the size state to trigger a sizing
pass. Memory is rightfully protected enough that the path to remove
memory was dropped and I just added a hook to set a resize flag.
I am sure there are better ways but this is what made sense to me.
Looking forward to thoughts.
~~Logistics wise, I have proposed it as a patch because I was based off
0.31.1 for testing. I was also thinking it could be released quickly. I
am happy to cherry pick onto main after. If that is not allowed I can
rebase to main and pull against that.~~ (rebased on main)
---------
Co-authored-by: Wesley Murray <murraywj97@gmail.com>
I need to scroll in a snapshot test in my app, and kittest had no
utilities for this. Event::MouseWheel is error prone. This adds support
for some accesskit scroll actions, and uses this in kittest to add
helpers to scroll to a node / scroll the scroll area surrounding a node.
The accesskit code says down/up/left/right `Scrolls by approximately one
screen in a specific direction.`. Unfortunately it's difficult to get
the size of a "screen" (I guess that would be the size of the containing
scroll area)where I implemented the scrolling, so for now I've hardcoded
it to 100px. I think scrolling a fixed amount is still better than not
scrolling at all.
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
This pull request modifies the `BytesLoader` implementation for
`FileLoader` in `crates/egui_extras/src/loaders/file_loader.rs` to
improve thread safety and handle unexpected states more gracefully.
### Changes to thread safety and state handling:
* Updated the cache logic to check if the `uri` exists in the cache
before inserting the result. If the `uri` is not found, a log message is
added to indicate the loading was canceled. This change prevents
overwriting cache entries unexpectedly.
* Closes <https://github.com/emilk/egui/issues/6755>
* [x] I have followed the instructions in the PR template
The color picker popup is now aligned to the bottom left edge (instead
of the bottom right), but I think this makes more sense and is aligned
with ComboBox etc. It also gets the new nice auto positioning.
* closes#5832
* [x] I have followed the instructions in the PR template
Closes#7077.
This fixes the problem shown in #7077 where clearing a `TextEdit`
wouldn't reset its cursor position. I've fixed that by adding back the
`TextCursorState::range` method, which clamps the selection range to
that of the passed `Galley`, and calling it in the same places where it
was called before #5785.
(/cc @juancampa)
* [x] I have followed the instructions in the PR template
When your press a Back button on Android (for example at
`native-activity`), [Winit translates this
key](47b938dbe7/src/platform_impl/android/keycodes.rs (L237C42-L237C53))
as `NamedKey::BrowserBack`. Added convertion to `Key::Escape` at
`egui-winit` module.
---------
Co-authored-by: Advocat <advocat@ogr.local>
Usually input events automatically trigger a repaint. But since
consume_key would remove the event egui would think there were no events
and not trigger a repaint. This fixes it by setting a flag on InputState
on consume_key.
* related: https://github.com/rerun-io/rerun/issues/10165
Today each widget does its own custom layout, which has some drawbacks:
- not very flexible
- you can add an `Image` to `Button` but it will always be shown on the
left side
- you can't add a `Image` to a e.g. a `SelectableLabel`
- a lot of duplicated code
This PR introduces `Atoms` and `AtomLayout` which abstracts over "widget
content" and layout within widgets, so it'd be possible to add images /
text / custom rendering (for e.g. the checkbox) to any widget.
A simple custom button implementation is now as easy as this:
```rs
pub struct ALButton<'a> {
al: AtomicLayout<'a>,
}
impl<'a> ALButton<'a> {
pub fn new(content: impl IntoAtomics) -> Self {
Self { al: content.into_atomics() }
}
}
impl<'a> Widget for ALButton<'a> {
fn ui(mut self, ui: &mut Ui) -> Response {
let response = ui.ctx().read_response(ui.next_auto_id());
let visuals = response.map_or(&ui.style().visuals.widgets.inactive, |response| {
ui.style().interact(&response)
});
self.al.frame = self
.al
.frame
.inner_margin(ui.style().spacing.button_padding)
.fill(visuals.bg_fill)
.stroke(visuals.bg_stroke)
.corner_radius(visuals.corner_radius);
self.al.show(ui)
}
}
```
The initial implementation only does very basic layout, just enough to
be able to implement most current egui widgets, so:
- only horizontal layout
- everything is centered
- a single item may grow/shrink based on the available space
- everything can be contained in a Frame
There is a trait `IntoAtoms` that conveniently allows you to construct
`Atoms` from a tuple
```
ui.button((Image::new("image.png"), "Click me!"))
```
to get a button with image and text.
This PR reimplements three egui widgets based on the new AtomLayout:
- Button
- matches the old button pixel-by-pixel
- Button with image is now [properly
aligned](https://github.com/emilk/egui/pull/5830/files#diff-962ce2c68ab50724b01c6b64c683c4067edd9b79fcdcb39a6071021e33ebe772)
in justified layouts
- selected button style now matches SelecatbleLabel look
- For some reason the DragValue text seems shifted by a pixel almost
everywhere, but I think it's more centered now, yay?
- Checkbox
- basically pixel-perfect but apparently the check mesh is very slightly
different so I had to update the snapshot
- somehow needs a bit more space in some snapshot tests?
- RadioButton
- pixel-perfect
- somehow needs a bit more space in some snapshot tests?
I plan on updating TextEdit based on AtomLayout in a separate PR (so
you could use it to add a icon within the textedit frame).
Improves the `ComboBox` example with some code that shows how to handle
changes in the `ComboBox`’s selection. The approach is based on the
advice given in https://github.com/emilk/egui/discussions/923 . I hope
this saves future me (and hopefully others) a web search for how to do
this.
* [x] I have followed the instructions in the PR template
* Closes https://github.com/emilk/egui/issues/7120
You can now zoom only the X axis by holding down shift, and zoom only
the Y axis by holding down ALT.
In summary
* `Shift`: horizontal
* `Alt`: vertical
* `Ctrl`: zoom (`Cmd` on Mac)
Thus follows:
* `scroll`: pan both axis (at least for trackpads and mice with two-axis
scroll)
* `Shift + scroll`: pan only horizontal axis
* `Alt + scroll`: pan only vertical axis
* `Ctrl + scroll`: zoom all axes
* `Ctrl + Shift + scroll`: zoom only horizontal axis
* `Ctrl + Alt + scroll`: zoom only vertical axis
This is provided the application uses `zoom_delta_2d` for its zooming
needs.
The modifiers are exposed in `InputOptions`, but it is strongly
recommended that you do not change them.
## Testing
Unfortunately we have no nice way of testing this in egui.
But I've tested it in `egui_plot`.
This fixes bugs related to how an `Image` follows the size of an SVG.
We track the "source size" of each image, i.e. the original width/height
of the SVG, which can be different from whatever it was rasterized as.
* Closes https://github.com/emilk/egui/issues/3501
The problem occurs when you want to render the same SVG at different
scales, either at the same time in different parts of your UI, or at two
different times (e.g. the DPI changes).
The solution is to use the `SizeHint` as part of the key.
However, when you have an SVG in a resizable container, that can lead to
hundreds of versions of the same SVG. So new eviction code is added to
handle this case.
This PR corrects the deprecation note on ComboBox::from_id_source:
Changed:
`#[deprecated = "Renamed id_salt"]`
To:
`#[deprecated = "Renamed from_id_salt"]`
With kittest it was difficult to wait for images to be loaded before
taking a snapshot test.
This PR adds `Harness::with_wait_for_pending_images` (true by default)
which will cause `Harness::run` to sleep until all images are loaded (or
`HarnessBuilder::with_max_steps` is exceeded).
It also adds a new ImageLoader::has_pending and
BytesLoader::has_pending, which should be implemented if things are
loaded / decoded asynchronously.
It reverts https://github.com/emilk/egui/pull/6901 which was my previous
attempt to fix this (but this didn't work since only the tested crate is
compiled with cfg(test) and not it's dependencies)
Lucas Meurer
Emil Ernerfeldt
Blackberry Float
Lukas Rieger
Nicolas
Azkellas
valadaptive
ardocrat
Rinde van Lon
Abdellatif EL MIZEB
Lucas Meurer