When a `ScrollArea` is added to a `Ui` or its contents change
dynamically, the contents will briefly escape the container. This occurs
because `ScrollArea` internally maintains `content_is_too_large` flags,
from which it determines when to clip. The `content_is_too_large` flags
are calculated after painting, so they always lag one frame behind. This
can lead to flickering.
To fix this, I have changed the `ScrollArea` so that it always clips
scrollable content. I believe that this should fix things without
negatively impacting other behavior. To see this, consider how
`ScrollArea` calculates the `content_is_too_large` flag:
```rust
// This calculates a new inner rect, after painting, from the initial clip rect
let inner_rect = {
// At this point this is the available size for the inner rect.
let mut inner_size = inner_rect.size();
for d in 0..2 {
inner_size[d] = match (scroll_enabled[d], auto_shrink[d]) {
(true, true) => inner_size[d].min(content_size[d]), // shrink scroll area if content is small
(true, false) => inner_size[d], // let scroll area be larger than content; fill with blank space
(false, true) => content_size[d], // Follow the content (expand/contract to fit it).
(false, false) => inner_size[d].max(content_size[d]), // Expand to fit content
};
}
Rect::from_min_size(inner_rect.min, inner_size)
};
let outer_rect = Rect::from_min_size(inner_rect.min, inner_rect.size() + current_bar_use);
let content_is_too_large = Vec2b::new(
scroll_enabled[0] && inner_rect.width() < content_size.x,
scroll_enabled[1] && inner_rect.height() < content_size.y,
);
```
If `scroll_enabled[d] == true`, then the actual `inner_rect` (which is
calculated after painting contents) will always be smaller than the
original `inner_rect`. Hence, it is safe to unconditionally clip the
contents to `inner_rect` whenever `scroll_enabled[d] == true`.
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* Closes <https://github.com/emilk/egui/issues/4742>
* [x] I have followed the instructions in the PR template
I was having trouble with id collisions and was not able to resolve it
using `push_id` and `child_ui_with_id_source`.
When investigating the issue I found
https://github.com/emilk/egui/pull/2262 which matched the issues I had
so I forked egui and implemented the changes from that PR for the latest
version.
It solved the issue for me.
I did not notice any regressions in my project or the egui web viewer.
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Hello,
I have made several corrections to stabilize the virtual keyboard on
Android and IOS (Chrome and Safari).
I don't know if these corrections can have a negative impact in certain
situations, but at the moment they don't cause me any problems.
I'll be happy to answer any questions you may have about these fixes.
These fixes correct several issues with the display of the virtual
keyboard, particularly since update 0.28, which can be reproduced on the
egui demo site.
We hope to be able to help you.
Thanks a lot for your work, I'm having a lot of fun with egui :)
As mentioned in #4950 I added `max_decimals_opt` to the Slider
* Closes <https://github.com/emilk/egui/issues/4950>
* [x] I have followed the instructions in the PR template
* [x] I ran the script in `scripts/check.sh`
On multiple-monitor systems, eframe was incorrectly selecting first ones
dimensions for centering
Would also appretiate releasing 0.28.2 with fix included on crates.io
As we have two Margin widgets in the same UI and this widget has a Grid
with a hardcoded Id, we have to force a different Id to one of them to
avoid clashes.
* Closes <https://github.com/emilk/egui/issues/4965>
* [x] I have followed the instructions in the PR template
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* Closes <https://github.com/emilk/egui/issues/3482>
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Regarding the statement in #3482,
https://docs.rs/egui/latest/egui/layers/struct.GraphicLayers.html#method.drain
accepts a HashMap, but not sure if that is enough to keep the re-export.
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This PR
- adds a pipeline to check the ios build
- removes the iOS WaitUntil workaround, which doesn't seem to be
necessary anymore after the winit update (and caused the build for iOS
to fail again because of a missing self
- ~removes a iOS workaround for window size which doesn't seem necessary
anymore~
Turns out it was still needed (but you need to actually restart the app
for the issue to show up, so I didn't catch it first)
- fixes some cargo check errors in run.rs
I've done all these changes in a single PR because otherwise the
pipeline doesn't run but I can also split them in separate PRs if that
makes it easier to review
This request focus on a TextEdit when clicked, so that touch events on
Android can now focus it.
This looks like a reasonable fix for
https://github.com/emilk/egui/issues/4941.
* Fixes#3959
There are two bugs racing each other here, which is why it sometimes
crashes and sometimes the app just silently exists
Bug 1
When the window is recreated a Destroyed event arrives (due to the Drop
of the old window). The code that receives this event does not look to
see if its the main viewport or a secondary one and unconditionally
closes the app. The code path for other platforms is slightly different
and does check.
I have moved the code that handles the destroy to be in the same place
and have the same behavior as the other platforms.
Bug 2
At recreate time the window and winit entries of the viewport are set to
None (forcin g them to be recreated). But the surface is still bound to
the old window, this causes the next context switch to fail. So I simply
added a viewport.gl_surface = None too,
This is my first egui PR so I hope I have not broken anything. If
nothing else I understand a little better how egui works.
This updates winit to 0.30.5.
https://github.com/emilk/egui/pull/4849 Had to pin the version to
0.30.2, as a Winit patch changed the behavior of selecting a theme.
Winit 0.30.5 reverts this, so we could stick with `window.theme()`, but
the newly added `ActiveEventLoop::system_theme` is more like what egui
wants anyway, as individual windows can have theme overrides.
Also bump `smithay-clipboard` to prevent some now duplicate
dependencies.
* Some initial progress towards #4490
This PR just moves `Theme` and the "follow system theme" settings to
egui and adds `RawInput.system_theme`.
A follow-up PR can then introduce the two separate `dark_mode_style` and
`light_mode_style` fields on `Options`.
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* [x] I have followed the instructions in the PR template
### Breaking changes
The options `follow_system_theme` and `default_theme` has been moved
from `eframe` into `egui::Options`, settable with `ctx.options_mut`
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Similar to #4889
Updated the `ui` method of the `Button` widget so that the alignment
given by the layout is applied to the image contained in the button (if
one exists).
Currently, only the text inside the button has alignment applied to it,
and only when it is not accompanied by an image or shortcut text. Images
within buttons are always aligned to the centre left, no matter the
alignment of the containing `Ui`. This update now also applies this
alignment to an image when it has no accompanying text, which makes
buttons with an image and no text more consistent with the appearance of
ones with text and no image.
I've also made an additional change so that the vertical alignment is
now also respected when displaying some combination of image and text,
but the original horizontal alignment remains the same, so that the
image always appears left of the text. Any shortcut text now also
follows vertical alignment, but is always horizontally aligned to the
right.
Here are some comparisons of the difference between how buttons look
with different alignments, before and after this change:
### Before
### After
* [x] I have followed the instructions in the PR template
Fix: Changed the handling method of `Ime::Preedit(_, None)`
Fix: backspace fail after ime input
* Related #4358
* Related #4430
* Related #4436
* Related #4794
* Related #4896
* Closes#4908
Issues: backspace fail after ime input
* #4908 (Chinese)
Changed the handling method of `Ime::Preedit(_, None)`
Since #4849, running `./scripts/check.sh` fails with:
```
...
error[E0277]: the trait bound `ActiveEventLoop: raw_window_handle::borrowed::HasDisplayHandle` is not satisfied
--> crates/egui_glow/src/winit.rs:43:13
|
43 | event_loop,
| ^^^^^^^^^^ the trait `raw_window_handle::borrowed::HasDisplayHandle` is not implemented for `ActiveEventLoop`
|
= help: the following other types implement trait `raw_window_handle::borrowed::HasDisplayHandle`:
raw_window_handle::borrowed::DisplayHandle<'a>
&H
&mut H
= note: required for the cast from `&ActiveEventLoop` to `&dyn raw_window_handle::borrowed::HasDisplayHandle`
```
This PR adds the missing `rwh_06` to the winit dependency (in
egui-glow).
* [x] I have followed the instructions in the PR template
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* Closes#4295
I based this on #4303, I'll rebase once that one gets merged.
This allows license checking tools to omit the OFL and UFL licenses when
`default_fonts` are turned off.
There was some discussion of versioning on the original issue; I have
chosen to label this version as `0.28.1` to match the other crates.
Happy to adjust the version as needed.
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* Closes <https://github.com/emilk/egui/issues/2321>
* [X] I have followed the instructions in the PR template
---------
Co-authored-by: Alex Pinkus <pinkus@amazon.com>
* Closes https://github.com/emilk/egui/issues/1918
* Closes https://github.com/emilk/egui/issues/4437
* Closes https://github.com/emilk/egui/issues/4709
* [x] I have followed the instructions in the PR template
Hiya,
I need new winit for a specific fix for a android_native_actvity. There
are already two PRs, but both don't seem to have a lot of movement, or
are entirely complete:
https://github.com/emilk/egui/pull/4466
Seems to have gone stale & is missing some bits.
https://github.com/emilk/egui/pull/4702
Also seems stale (if less so), and is missing a refactor to
run_on_demand. I also *think* the accesskit integration has a mistake
and can't be enabled. I've marked them as a co-author on this as I
started from this branch. (I think! Haven't done that on git before...).
Sorry for the wall of text but just dumping some details / thoughts
here:
- There's an issue with creating child windows in winit 0.30.1 and up on
macOS. The multiple_viewports, "create immediate viewport" example
crashes on anything later 0.30.1, with a stack overflow in unsafe code.
I've create [a winit
issue](https://github.com/rust-windowing/winit/issues/3800), it *might*
already be fixed in 0.31.0 but I can't test as 0.31 will likely require
another refactoring. For now I have just pinned things to 0.30.0 exatly.
- Winit has deprecated run_on_demand, instead requiring the
ApplicationHandler interface. In 0.31.0 run_on_demand is removed. I've
refactored both the integration and the WinitApp trait to follow this
pattern. I've left user_events a bit more opaque, as it seems 0.31.0 is
doing a rework of UserEvents too.
- I've used the new lazy init approach for access kit from this branch
https://github.com/mwcampbell/egui/tree/accesskit-new-lazy-init and
marked Matt as co-author, thanks Matt!
- There was very similair but not quite the same code for run_and_return
and run_and_exit. I've merged them, but looking at the github issues
graveyard it seems vey finnicky. I *hope* this is more robust than
before but it's a bit scary.
- when receiving new_events this also used to check the redraw timing
dictionary. That doesn't seem necesarry so left this out, but that is a
slight behaviour change?
- I have reeneabled serial_windows on macOS. I wondered whether it was
fixed after this PR and does seem to be! However, even before this PR it
seems to work, so maybe winit has sorted things out before that...
Windows also works fine now without the extra hack.
- I've done a very basic test of AccessKit on Windows and screen reader
seems ok but I'm really not knowleadgable enough to say whether it's all
good or not.
- I've tested cargo tests & all examples on Windows & macOS, and ran a
basic Android app. Still, testing native platforms is wel... hard so if
anyone can test linux / iOs / older mac versions / windows 10 would
probably be a good idea!
- For consistencys sake I've made all event like functions in WinitApp
return a `Result<EventResult>`. There's quite a bit of Ok-wrapping now,
maybe too annoying? Not sure.
Thank you for having a look!
# Tested on
* [x] macOS
* [x] Windows
* [x] Wayland (thanks [SiebenCorgie](https://github.com/SiebenCorgie))
* [x] X11 (thanks
[crumblingstatue](https://github.com/crumblingstatue)!,
[SiebenCorgie](https://github.com/SiebenCorgie))
# TODO
* [x] Fix "follow system theme" not working on initial startup (winit
issue, pinning to 0.30.2 for now).
* [x] Fix `request_repaint_after`
---------
Co-authored-by: mwcampbell <mattcampbell@pobox.com>
Co-authored-by: j-axa <josef.axa@gmail.com>
Co-authored-by: DataTriny <datatriny@gmail.com>
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Updated the `show_content` method of the `TextEdit` widget so that the
requested text alignment (if any) is also applied to the hint text.
Currently, hint text is always aligned to the top left of the widget,
which may be inconsistent with the actual location of text entered by
the user. I think it's more intuitive for the hint text to be positioned
as if the user had entered the same text themselves.
Here are some comparisons of the difference between how the hint text
and the entered text looks, before and after this change:
### Previous Behaviour
### Updated Behaviour
* [x] I have followed the instructions in the PR template
* [x] I have followed the instructions in the PR template
Clarified that `eframe::run_simple_native()` does in fact save some
state (if persistence is enabled) but does not allow user to save state.
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* [x] I have followed the instructions in the PR template (less the
self-review using the script as it's only a single word change).
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added return ScrollAreaOutput.
This can be used to monitor the scroll progress of a table(usage
example: custom scroll progress bar or lazy loading table)
* [X] I have followed the instructions in the PR template
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* Closes https://github.com/emilk/egui/issues/3453
* [x] I have followed the instructions in the PR template
I'm fairly new to egui.
I read the code, but I didn't follow the approach mentioned in
https://github.com/emilk/egui/issues/3453#issuecomment-2208255433.
I believe this is an easier way to achieve that, though I'm not certain
if it's the best method.
<img width="760" alt="image"
src="https://github.com/user-attachments/assets/4b3c561f-1c24-446b-9581-a2f4e9858480">
I get really nice svg with this patch.
@emilk Can you please take a look? I really need this!
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I find myself wanting this API quite a lot, and I imagine it'll probably
be useful for others.
# What?
This PR adds `Rect::scale` and `Rect::scale2` functions, which work a
lot like `expand`, but instead multiply by a scale.
i.e.
```rs
rect.scale(2.0); // rect is 2x as big, still in same center
rect.scale2(vec2(1.5, 2.0)); // rect is 1.5x as big on x axis, 2.0x as big on y axis. still in same center
```
# Why?
Before this you either had to write this yourself or use a `expand` in a
cumbersome way:
```rs
rect.expand2(vec2(rect.width() * scale.x / 2.0, rect.height() * scale.y / 2.0));
```
I find myself wanting to scale things up by a factor frequently enough,
and it seems like a useful addition to have a multiply-based variant of
`expand`.
I realise this is pretty minor, but it seems useful enough to me!
---------
Co-authored-by: zkldi <20380519+zkldi@users.noreply.github.com>
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
# Changes
- Adds a new function `egui::Ui::columns_const()`, which is the same as
`egui::Ui::columns()` except that it uses a `const` parameter for the
column count.
- Backed by an array `[Ui; NUM_COL] instead of a `Vec<Ui>`, so fewer
allocations
- Inner closure takes in an array reference, instead of a slice
reference. This makes it possible to use pattern destructuring on the
columns, as shown in the example, and makes it more ergonomic to use
# Example
```rust
// ORIGINAL
ui.columns(2, |cols| {
cols[0].label("one");
cols[1].label("two");
});
// NEW
ui.columns_const(|[a,b]| {
a.label("one");
b.label("two");
});
```
# Checks
- [X] `cargo fmt`
- [X] `cargo clippy`
- [X] `./scripts/check.sh`
- [X] Docs
- [ ] Review
* Closes https://github.com/emilk/egui/issues/1713
I almost went to implement my own undo/redo system, and then found the
egui undoer.
Went to make a small demo to test for myself how it worked, and then
found the linked issue.
So here is a tweaked version of that :)
Co-authored-by: Wybe Westra <w.westra@kwantcontrols.nl>
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I added a util function `set_hovered` to change the hovered state of a
row from tables in `egui_extras` which matches the already present
`set_selected` function.
* [x] I have followed the instructions in the PR template
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* Closes https://github.com/emilk/egui/discussions/4670
* [x] I have followed the instructions in the PR template
`egui::Table` has a weirdly specific default `max_scroll_height` set to
800.0. This means that even with `vscroll(true)` and `auto_shrink([_,
false])`, the table will not expend to the full available height. This
PR changes this value to `f32::INFINITY`. This makes it consistent with
the corresponding default value of `ScrollArea::max_size.y`, which is
where that `max_scroll_height` ends up being used.
Improved `change_gl_context()`
**Before:**
Create a new `not_current_glcontext`.
**After:**
If `not_current_glcontext` exists, apply it. Otherwise, create it.
This will make the program smoother when dragging, etc.
In order to make it possible that all buttons can have the same style
with a text and an image I created a `menu_text_image_button`.
It works the same way as all the other menu buttons.
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Handle the `IME` event first
There is a need to handle the Ime event first.
Fix Issues : When you press `BackSpace`, the entire text is erased, and
when you press another letter, it appears again.
Fix Issues : When you press `Left`, the character being entered will be
copied once more.
Fix Issues : When you press `Enter`, `Enter` with `repeat` set is
entered and `Enter` is entered twice.
Fix Issues : When you press a key in `IME` mode, `repeat` is often set.
Fix Issues : Since you may be selecting something in the IME, this also
disables the `Arrow` keys.
Before, you could accidentally get multiple tooltips if a tooltips was
interactive (e.g. had a link in it) and on the way to interact with it
you would hover another widget with a tooltip.
This PR ensures that each `LayerId` only has one tooltip open at a time.
You can still have a tooltip for an item inside of a tooltip.
This makes the sizing pass of an `egui_table` ensure the table uses as
little width as possible.
Subsequently, it will redistribute all non-resizable columns on the
available space, so that a table better follow the parent container as
it is resized.
I also added `table.reset()` for forgetting the current column widths.
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This prevents TextEdit widgets from sending fake primary clicks when a
user types Space / Enter. Small change but having Space / Enter send
`OutputEvent::ValueChanged` instead of `OutputEvent::Clicked` makes more
sense I believe.
---------
Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Marking widgets as disabled was not reflected in the accesskit output,
now the disabled status should match.
---------
Co-authored-by: Wybe Westra <w.westra@kwantcontrols.nl>
This allows users to customize how numbers are converted into strings in
a `DragValue`, as a global default.
This can be used (for instance) to show thousands separators, or use `,`
as a decimal separator.
The default `Plot` formatter now picks precision intelligently based on
zoom level. The width of the Y axis are is now much smaller by default,
and expands as needed.
Also deprecates `Plot::y_axis_with`; replaced with `y_axis_min_width`.
Set `auto_shrink(false)` on `Window`s `ScrollArea`.
This ensures that the scroll bars are always the outermost.
* Closes https://github.com/emilk/egui/pull/4602
Emil Ernerfeldt
Douglas Dwyer
Hrafn Orri Hrafnkelsson
Michaël Monayron
rustbasic
Nicolas
VinTarZ
frederik-uni
YgorSouza
Oscar Gustafsson
lucasmerlin
Zoxc
pm100
Andreas Reich
Arthur Brussee
Tau Gärtli
PrimmR
Ardocrat
Alex Pinkus
Arthur Brussee
Tyler Stevens
Onè
Salman Abuhaimed
Simon Niedermayr
Xavier Lau
zk
Jan Procházka
v0x0g
Wybe Westra
Addis Webb
Antoine Beyeler
Wojciech Muła
Nicolas Bircks
Joe Sorensen
Jonas Wagner
William Zhang