Commit Graph

1342 Commits

Author SHA1 Message Date
rustbasic 23728e145e
Fix bug causing wrong-fire of `ViewportCommand::Visible` (#5244)
Fix: variable name issue

I'm not sure, if there's any particular reason to do `self.active` .
I thought `self.visible` was the original intention.
2024-10-10 15:51:52 +02:00
Rusty-Cube 7bd6f83f18
Free textures after submitting queue instead of before with wgpu renderer (#5226)
* 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>
2024-10-06 20:50:10 +02:00
Nicolas 0f2b427ff4
Allow easier setting of background color for TextEdit (#5203)
* Closes <https://github.com/emilk/egui/issues/5183>
* [x] I have followed the instructions in the PR template
2024-10-02 21:23:54 +02:00
lucasmerlin 1406e8717c
egui-wgpu: Fix docs.rs build (#5204)
This enables the rwh_06 feature in winit which is required to correctly
build egui-wgpu
- fixes #5202
2024-10-02 19:17:14 +02:00
valadaptive ac2466d14f
Update ScrollArea drag velocity when drag stopped (#5175)
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
2024-10-02 18:12:36 +02:00
Emil Ernerfeldt 24cd711f5b Fix typos 2024-10-01 10:41:59 +02:00
Emil Ernerfeldt 5f8f149444
Add `UiBuilder::layer_id`, and remove `layer_id` from `Ui::new` (#5195)
This adds `UiBuilder::layer_id` to replace `ui.with_layer_id`
2024-10-01 10:39:44 +02:00
Emil Ernerfeldt fe368bacc4 Release 0.29.1 - Bug fixes 2024-10-01 10:08:21 +02:00
Emil Ernerfeldt ce744e6f7a
Do not round panel rectangles to pixel grid (#5196)
* Closes https://github.com/emilk/egui/issues/5173
* Part of https://github.com/emilk/egui/issues/5163
* Related to https://github.com/emilk/egui/issues/5164
2024-09-30 15:48:41 +02:00
Emil Ernerfeldt 15d3d43aa3
Fix backspace/arrow keys in TextEdit on Linux (#5188)
* Closes https://github.com/emilk/egui/issues/5008
* Closes https://github.com/emilk/egui/pull/5182
* Bug introduced in https://github.com/emilk/egui/pull/4912

I suspect this will make IME no longer work on Linux, though I don't
know if it ever worked.
I rather have backspace/arrows working though.

Please help test this (I don't have Linux!)

# Tested on
* [x] Mac
* [ ] Linux Wayland
* [x] Linux X11
2024-09-30 13:23:02 +02:00
Emil Ernerfeldt 448e12d6b6
Fix id clash in `Ui::response` (#5192)
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
2024-09-30 13:20:34 +02:00
Emil Ernerfeldt 5390ecdf4a
Bug fix: click anywhere on a `Table` row to select it (#5193)
* Closes https://github.com/emilk/egui/issues/5184
2024-09-30 13:20:03 +02:00
Emil Ernerfeldt db3dcaf447
Remove debug-assert triggered by `with_layer_id/dnd_drag_source` (#5191)
* Closes https://github.com/emilk/egui/issues/5178
2024-09-30 13:19:53 +02:00
GiGaGon 679f6f57b1
Replace "an ui" with "a ui" (#5185)
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
2024-09-30 08:23:38 +02:00
Emil Ernerfeldt 59d71831fd Release 0.29.0 - Multipass, `UiBuilder`, & visual improvements 2024-09-26 15:32:02 +02:00
rustbasic dae1979dd3
Add back `Context::set_visuals()` (#5100)
My opinion is, it would be better to keep `Context::set_visuals()` so
that you don't get confused.

* Related #4744
2024-09-26 11:37:57 +02:00
Ethan Post 25abb74465
egui_extras: Add `TableBuilder::animate_scrolling` (#5159)
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>
2024-09-26 11:36:20 +02:00
Emil Ernerfeldt a72ebbeafc
Add a `cargo machete` CI step (#5171)
`cargo machete` looks for unused dependencies
2024-09-26 10:24:37 +02:00
Emil Ernerfeldt 92adfa57dc Improve comment in text layout code 2024-09-26 09:43:27 +02:00
YgorSouza a59e178131
Document the fact that the hex_color macro is not const (#5169)
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
2024-09-26 09:15:28 +02:00
Emil Ernerfeldt 3805584238
Fix bug causing tooltips with dynamic content to shrink (#5168)
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);
     // …
 });
```
2024-09-25 18:50:14 +02:00
Emil Ernerfeldt 5d46f67f79
Add `DebugOptions::show_unaligned` (#5165)
This tool highlights coordinates that are non-integer.

* Closes https://github.com/emilk/egui/issues/4927
* Will be used for https://github.com/emilk/egui/issues/5163

This is disabled by default (even in debug builds), because so many
widgets cause un-alignment currently.
2024-09-25 16:05:30 +02:00
Emil Ernerfeldt f97f85089d
Prevent text shrinking in tooltips; round wrap-width to integer (#5161)
* 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
2024-09-25 11:31:41 +02:00
Emil Ernerfeldt 9ef4d02ab8
More compact `Debug` formatting of `Color32` (#5162)
Especially when using the verbose `{:#?}`, which before would result in

```
Color32([
    255,
    0,
    0,
    255
])
```

but now becomes `#ff_00_00_ff`
2024-09-25 11:14:44 +02:00
Andreas Reich 1603f05818
Wgpu render pass on paint callback has now static lifetime (#5149)
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!
2024-09-23 11:48:09 +02:00
Christofer Nolander 6f7b9b9b87
Add support for mipmap textures. (#5146)
<!--
Please read the "Making a PR" section of
[`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md)
before opening a Pull Request!

* Keep your PR:s small and focused.
* The PR title is what ends up in the changelog, so make it descriptive!
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* [x] I have followed the instructions in the PR template

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.
2024-09-22 19:16:16 +02:00
Swarkin 07ccf41bf9
Improve documentation grammar and wording (#5052)
This PR aims to make the documentation comments easier to read and
understand.
2024-09-22 19:15:11 +02:00
rustbasic 7c7190f98d
Clamp font size to between 0.1 and 2048 (#5139)
Fix: Font size limit to prevent panic
2024-09-22 19:14:03 +02:00
lucasmerlin c9df2f0783
Fix pan_zoom demo constraining windows (#5137)
fixes 

* Closes #5135
* [x] I have followed the instructions in the PR template
2024-09-22 19:13:01 +02:00
GiGaGon 02e795277f
Fix error in Response::dragged docs (#5143)
* [x] I have followed the instructions in the PR template
2024-09-21 12:48:29 +02:00
Emil Ernerfeldt 06f709481a
Keep track of why `request_discard` was called (#5134)
This will help debug spurious calls to it
2024-09-20 09:17:52 +02:00
lucasmerlin 9ba97a9a2f
Fix empty grids repeatedly requesting a discard (#5133)
* Closes <https://github.com/emilk/egui/issues/5132>
* [x] I have followed the instructions in the PR template

This does cause a slight difference in the amount of space allocated by
a empty grid, is this a problem?
Before:

<img width="113" alt="image"
src="https://github.com/user-attachments/assets/88c9c1a8-2ab8-4b01-8d57-0eb0655fa0e4">

After:

<img width="101" alt="image"
src="https://github.com/user-attachments/assets/8e1c9d1b-54d6-43b9-9e37-2614dd90d6fe">
2024-09-20 09:08:44 +02:00
Emil Ernerfeldt 5cc35d2212 Improve docstring of `Ui::new_child` 2024-09-19 14:41:18 +02:00
Emil Ernerfeldt e0f0b7f47f
Remember to call `ui.register_rect` for better debug (#5130) 2024-09-19 12:23:53 +02:00
Emil Ernerfeldt b1784249d2 Fix merge race 2024-09-19 12:01:10 +02:00
Emil Ernerfeldt 902c54e534 Add `💻` emoji to the system, theme selector 2024-09-19 11:56:54 +02:00
Emil Ernerfeldt b8d008177a Lower log level of "Loading new fonts" to `trace` 2024-09-19 11:56:38 +02:00
lucasmerlin 1b8737cf02
Interactive `Ui`:s: add `UiBuilder::sense` and `Ui::response` (#5054)
<!--
Please read the "Making a PR" section of
[`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md)
before opening a Pull Request!

* Keep your PR:s small and focused.
* The PR title is what ends up in the changelog, so make it descriptive!
* If applicable, add a screenshot or gif.
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`egui_demo_lib`, or a new example.
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* Closes #5053 
* [x] I have followed the instructions in the PR template


This fixes #5053 by adding a Sense parameter to UiBuilder, using that in
Context::create_widget, so the Widget is registered with the right Sense
/ focusable. Additionally, I've added a ignore_focus param to
create_widget, so the focus isn't surrendered / reregistered on
Ui::interact_bg.

The example from #5053 now works correctly: 


https://github.com/user-attachments/assets/a8a04b5e-7635-4e05-9ed8-e17d64910a35

<details><summary>Updated example code</summary>
<p>

```rust
            ui.button("I can focus");

            ui.scope_builder(
                UiBuilder::new()
                    .sense(Sense::click())
                    .id_source("focus_test"),
                |ui| {
                    ui.label("I can focus for a single frame");
                    let response = ui.interact_bg();
                    let t = if response.has_focus() {
                        "has focus"
                    } else {
                        "doesn't have focus"
                    };
                    ui.label(t);
                },
            );

            ui.button("I can't focus :(");
```

</p>
</details> 



---

Also, I've added `Ui::interact_scope` to make it easier to read a Ui's
response in advance, without having to know about the internals of how
the Ui Ids get created.

This makes it really easy to created interactive container elements or
custom buttons, without having to use Galleys or
Painter::add(Shape::Noop) to style based on the interaction.

<details><summary>
Example usage to create a simple button
</summary>
<p>


```rust
use eframe::egui;
use eframe::egui::{Frame, InnerResponse, Label, RichText, UiBuilder, Widget};
use eframe::NativeOptions;
use egui::{CentralPanel, Sense, WidgetInfo};

pub fn main() -> eframe::Result {
    eframe::run_simple_native("focus test", NativeOptions::default(), |ctx, _frame| {
        CentralPanel::default().show(ctx, |ui| {
            ui.button("Regular egui Button");
            custom_button(ui, |ui| {
                ui.label("Custom Button");
            });

            if custom_button(ui, |ui| {
                ui.label("You can even have buttons inside buttons:");

                if ui.button("button inside button").clicked() {
                    println!("Button inside button clicked!");
                }
            })
            .response
            .clicked()
            {
                println!("Custom button clicked!");
            }
        });
    })
}

fn custom_button<R>(
    ui: &mut egui::Ui,
    content: impl FnOnce(&mut egui::Ui) -> R,
) -> InnerResponse<R> {
    let auto_id = ui.next_auto_id();
    ui.skip_ahead_auto_ids(1);
    let response = ui.interact_scope(
        Sense::click(),
        UiBuilder::new().id_source(auto_id),
        |ui, response| {
            ui.style_mut().interaction.selectable_labels = false;
            let visuals = response
                .map(|r| ui.style().interact(&r))
                .unwrap_or(&ui.visuals().noninteractive());
            let text_color = visuals.text_color();

            Frame::none()
                .fill(visuals.bg_fill)
                .stroke(visuals.bg_stroke)
                .rounding(visuals.rounding)
                .inner_margin(ui.spacing().button_padding)
                .show(ui, |ui| {
                    ui.visuals_mut().override_text_color = Some(text_color);
                    content(ui)
                })
                .inner
        },
    );

    response
        .response
        .widget_info(|| WidgetInfo::new(egui::WidgetType::Button));

    response
}
```

</p>
</details> 



https://github.com/user-attachments/assets/281bd65f-f616-4621-9764-18fd0d07698b

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-09-19 11:55:21 +02:00
lucasmerlin bfafddfdec
Add `Response::intrinsic_size` to enable better layout in 3rd party crates (#5082)
This adds a `intrinsic_size` field to the Response struct which allows
me to grow a egui button frame while still being able to know it's
intrinsic size in
[egui_flex](https://github.com/lucasmerlin/hello_egui/tree/main/crates/egui_flex)

* Related to
https://github.com/emilk/egui/issues/4378#issuecomment-2333800938
* [X] I have followed the instructions in the PR template

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-09-19 11:55:09 +02:00
Emil Ernerfeldt 2a40d16e5a
Center-align all text vertically (#5117)
* Closes https://github.com/emilk/egui/issues/4929
* Builds on top of https://github.com/emilk/egui/pull/2724 by @lictex
(ptal!)
* Implement `Center` and `Max` vertical text alignment properly
* Change default vertical alignment of text to centering

The end result is that text centers better in buttons and other places,
especially when mixing in emojis.
Before, mixing text of different heights (e.g. emojis and latin text) in
a label or button would cause the text to jump vertically.

## Before
This is `master`, with custom `FontTweak` to move fonts up and down:
<img width="1714" alt="image"
src="https://github.com/user-attachments/assets/a10e2927-e824-4580-baea-124c0b38a527">
<img width="102" alt="image"
src="https://github.com/user-attachments/assets/cd41f415-197b-42cd-9558-d46d63c21dcb">


## After
This PR, with the default (zero) `FontTweak`

<img width="102" alt="image"
src="https://github.com/user-attachments/assets/15e7d896-66b1-4996-ab58-dd1850b19a63">

<img width="1714" alt="image"
src="https://github.com/user-attachments/assets/54ec708c-7698-4754-b1fc-fea0fd240ec9">
2024-09-19 11:44:29 +02:00
valadaptive bb9e874c83
Update sampler along with texture on wgpu backend (#5122)
<!--
Please read the "Making a PR" section of
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* Keep your PR:s small and focused.
* The PR title is what ends up in the changelog, so make it descriptive!
* If applicable, add a screenshot or gif.
* If it is a non-trivial addition, consider adding a demo for it to
`egui_demo_lib`, or a new example.
* Do NOT open PR:s from your `master` branch, as that makes it hard for
maintainers to test and add commits to your PR.
* Remember to run `cargo fmt` and `cargo clippy`.
* Open the PR as a draft until you have self-reviewed it and run
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* When you have addressed a PR comment, mark it as resolved.

Please be patient! I will review your PR, but my time is limited!
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* Closes #5121
* [x] I have followed the instructions in the PR template

This unifies the code paths in `update_texture` somewhat, so that the
texture sampler and bind group are always replaced.

Not sure whether removing and reinserting the texture from and into the
`textures` map, or creating a new bind group, has much of a performance
impact. An alternative, as described in #5121, would be to split the
functionality for updating a texture's data from updating its options,
so that we don't have to unconditionally update the bind group (or do
something like store the options to check if they're changed).
2024-09-19 09:16:42 +02:00
Emil Ernerfeldt f4ed394a85
Add UI to modify `FontTweak` live (#5125)
This will make it easier to get nice sizing and vertical alignments of
fonts
2024-09-18 13:43:33 +02:00
rustbasic e31b44f1a5
Fix: `Event::Copy` and `Event::Cut` behave as if they select the entire text when there is no selection. (#5115)
Fix: `Event::Copy` and `Event::Cut` behave as if they select the entire
text when there is no selection.

It's unexpected and disconcerting that this behavior occurs when there
is no selected area.
2024-09-18 11:17:02 +02:00
Emil Ernerfeldt 24205f572a
Fix text selection of only whitespace (#5123)
* Closes https://github.com/emilk/egui/issues/5078
* Closes https://github.com/emilk/egui/pull/5120
2024-09-18 11:14:21 +02:00
Emil Ernerfeldt ce3911bc0d In the options ui, show only the currently selected theme
* Closes https://github.com/emilk/egui/pull/5101
2024-09-18 11:13:55 +02:00
Emil Ernerfeldt 4dd89e2052 Fix some minor clippy lints from the future 2024-09-18 09:44:23 +02:00
rustbasic 1474c17b0d
Fix: panic when dragging window between monitors of different pixels_per_point (#4868)
Fix: panic when dragging window between monitors of different
pixels_per_point

This will continue to help us as we develop `egui`.
I hope you agree with my defense of `panic`.

* Relate #3959
* Relate #4088

* Closes #4178
* Closes #4179


There is also a way to add log if necessary.
```
                log::debug!("Anti-panic behavior occurs");
```

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-09-17 19:49:53 +02:00
Emil Ernerfeldt f38515afe9
Add `Slider::clamping` for precise clamp control (#5119)
This deprecates `.clamp_to_range` in favor of more control using
`.clamping`.

## Related
* https://github.com/emilk/egui/pull/4728
* Closes https://github.com/emilk/egui/issues/4881
* https://github.com/emilk/egui/pull/4882
* https://github.com/emilk/egui/pull/5118
2024-09-17 15:44:22 +02:00
Emil Ernerfeldt 1191d9fa86 Remove debug-assert that false-positived on large f32 values due to precision problems 2024-09-17 15:32:17 +02:00
Emil Ernerfeldt 7d6c83b37f
Fix `DragValue` range clamping (#5118)
When using a `DragValue`, there are three common modes of range clamping
that the user may want:

A) no clamping
B) clamping only user input (dragging or editing text), but leave
existing value intact
C) always clamp

The difference between mode B and C is:

```rs
let mut x = 42.0;
ui.add(DragValue::new(&mut x).range(0.0..=1.0));
// What will `x` be here?
```

With this PR, we now can get the three behaviors with:

* A): don't call `.range()` (or use `-Inf..=Inf`)
* B) call `.range()` and `.clamp_existing_to_range(false)`
* C) call `.range()`

## Slider clamping
Slider clamping is slightly different, since a slider always has a
range.

For a slider, there are these three cases to consider:

A) no clamping
B) clamp any value that the user enters, but leave existing values
intact
C) always clamp all values

Out of this, C should probably be the default.

I'm not sure what the best API is for this yet. Maybe an `enum` 🤔 


I'll take a pass on that in a future PR.

## Related
* https://github.com/emilk/egui/pull/4728
* https://github.com/emilk/egui/issues/4881
* https://github.com/emilk/egui/pull/4882
2024-09-17 14:44:20 +02:00
Emil Ernerfeldt 89da356b79
Fix: call `save` when hiding tab, and `update` when focusing it (#5114)
Fix for a regression in 0.28

* `App::save` will now be called when the web app is hidden (e.g. goes
to a background tab)
* `App::update` will now be called when the web app is un-hidden (e.g.
becomes the foreground tab)
2024-09-16 16:28:54 +02:00
Nicolas 1488ffa35a
Use `log` crate instead of `eprintln` & remove some unwraps (#5010)
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- I fixed the TODO to use the `log` crate instead of `eprintln`
- Set the rust-version in the `scripts/check.sh` to the same as egui is
on
- I made xtask use anyhow to remove some unwraps 

* [x] I have followed the instructions in the PR template
2024-09-13 14:23:13 +02:00
Emil Ernerfeldt 66076101e1
Add `Context::request_discard` (#5059)
* Closes https://github.com/emilk/egui/issues/4976
* Part of #4378 
* Implements parts of #843

### Background
Some widgets (like `Grid` and `Table`) needs to know the width of future
elements in order to properly size themselves. For instance, the width
of the first column of a grid may not be known until all rows of the
grid has been added, at which point it is too late. Therefore these
widgets store sizes from the previous frame. This leads to "first-frame
jitter", were the content is placed in the wrong place for one frame,
before being accurately laid out in subsequent frames.

### What
This PR adds the function `ctx.request_discard` which discards the
visual output and does another _pass_, i.e. calls the whole app UI code
once again (in eframe this means calling `App::update` again). This will
thus discard the shapes produced by the wrongly placed widgets, and
replace it with new shapes. Note that only the visual output is
discarded - all other output events are accumulated.

Calling `ctx.request_discard` should only be done in very rare
circumstances, e.g. when a `Grid` is first shown. Calling it every frame
will mean the UI code will become unnecessarily slow.

Two safe-guards are in place:

* `Options::max_passes` is by default 2, meaning egui will never do more
than 2 passes even if `request_discard` is called on every pass
* If multiple passes is done for multiple frames in a row, a warning
will be printed on the screen in debug builds:


![image](https://github.com/user-attachments/assets/c2c1e4a4-b7c9-4d7a-b3ad-abdd74bf449f)

### Breaking changes
A bunch of things that had "frame" in the name now has "pass" in them
instead:

* Functions called `begin_frame` and `end_frame` are now called
`begin_pass` and `end_pass`
* `FrameState` is now `PassState`
* etc


### TODO
* [x] Figure out good names for everything (`ctx.request_discard`)
* [x] Add API to query if we're gonna repeat this frame (to early-out
from expensive rendering)
* [x] Clear up naming confusion (pass vs frame) e.g. for `FrameState`
* [x] Figure out when to call this
* [x] Show warning on screen when there are several frames in a row with
multiple passes
* [x] Document
* [x] Default on or off?
* [x] Change `Context::frame_nr` name/docs
* [x] Rename `Context::begin_frame/end_frame` and deprecate the old ones
* [x] Test with Rerun
* [x] Document breaking changes
2024-09-13 14:20:51 +02:00
9SMTM6 08f5eb30a4
Add opt-out `fragile-send-sync-non-atomic-wasm` feature for wgpu (#5098)
Note this will break people depending on eframe or egui-wgpu with
--no-default-features.
I don't know what to do about that to be honest.

* Closes #4914 
* [x] I have followed the instructions in the PR template

---------

Co-authored-by: Andreas Reich <r_andreas2@web.de>
2024-09-13 13:00:18 +02:00
Emil Ernerfeldt f658f8b02b
Make `Slider` and `DragValue` compatible with `NonZeroUsize` etc (#5105) 2024-09-13 11:27:13 +02:00
Emil Ernerfeldt 2c8df65bf6
Fix: Make sure `RawInput::take` clears all events, like it says it does (#5104) 2024-09-13 11:26:50 +02:00
Tau Gärtli b5627c7d40
Make Light & Dark Visuals Customizable When Following The System Theme (#4744)
* Closes <https://github.com/emilk/egui/issues/4490>
* [x] I have followed the instructions in the PR template

---

Unfortunately, this PR contains a bunch of breaking changes because
`Context` no longer has one style, but two. I could try to add some of
the methods back if that's desired.

The most subtle change is probably that `style_mut` mutates both the
dark and the light style (which from the usage in egui itself felt like
the right choice but might be surprising to users).

I decided to deviate a bit from the data structure suggested in the
linked issue.
Instead of this:
```rust
pub theme: Theme, // Dark or Light
pub follow_system_theme: bool, // Change [`Self::theme`] based on `RawInput::system_theme`?
```

I decided to add a `ThemePreference` enum and track the current system
theme separately.
This has a couple of benefits:
* The user's theme choice is not magically overwritten on the next
frame.
* A widget for changing the theme preference only needs to know the
`ThemePreference` and not two values.
* Persisting the `theme_preference` is fine (as opposed to persisting
the `theme` field which may actually be the system theme).

The `small_toggle_button` currently only toggles between dark and light
(so you can never get back to following the system). I think it's easy
to improve on this in a follow-up PR :)
I made the function `pub(crate)` for now because it should eventually be
a method on `ThemePreference`, not `Theme`.

To showcase the new capabilities I added a new example that uses
different "accent" colors in dark and light mode:

<img
src="https://github.com/user-attachments/assets/0bf728c6-2720-47b0-a908-18bd250d15a6"
width="250" alt="A screenshot of egui's widget gallery demo in dark mode
using a purple accent color instead of the default blue accent">

<img
src="https://github.com/user-attachments/assets/e816b380-3e59-4f11-b841-8c20285988d6"
width="250" alt="A screenshot of egui's widget gallery demo in light
mode using a green accent color instead of the default blue accent">

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-09-11 17:52:53 +02:00
lampsitter f4697bc007
Use Style's font size in egui_extras::syntax_highlighting (#5090)
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* Closes https://github.com/emilk/egui/issues/3549
* [X] I have followed the instructions in the PR template

The syntax highlighting font size was always hardcoded to 12 or 10
depending on what case it was hitting (so not consistent). This is
particularly noticeable when you increase the font size to something
larger for the rest of the ui.

With this the default monospace font size is used by default.

Since the issue is closely related to #3549 I decided to implement the
ability to use override_font_id too.

## Visualized

Default monospace is set to 15 in all the pictures

Before/After without syntect:

![normal](https://github.com/user-attachments/assets/0d058720-47ff-49e7-af77-30d48f5e138c)


Before/after _with_ syntect:

![syntect](https://github.com/user-attachments/assets/e5c380fe-ced1-40ee-b4b1-c26cec18a840)

Font override after without/with syntect (monospace = 20):

![override](https://github.com/user-attachments/assets/efd1b759-3f97-4673-864a-5a18afc64099)

### Breaking changes

- `CodeTheme::dark` and `CodeTheme::light` takes in the font size
- `CodeTheme::from_memory` takes in `Style`
- `highlight` function takes in `Style`
2024-09-10 11:38:26 +02:00
lucasmerlin 89b6055f9c
Add `Ui::with_visual_transform` (#5055)
* [X] I have followed the instructions in the PR template

This allows you to transform widgets without having to put them on a new
layer.
Example usage: 


https://github.com/user-attachments/assets/6b547782-f15e-42ce-835f-e8febe8d2d65

```rust
use eframe::egui;
use eframe::egui::{Button, Frame, InnerResponse, Label, Pos2, RichText, UiBuilder, Widget};
use eframe::emath::TSTransform;
use eframe::NativeOptions;
use egui::{CentralPanel, Sense, WidgetInfo};

pub fn main() -> eframe::Result {
    eframe::run_simple_native("focus test", NativeOptions::default(), |ctx, _frame| {
        CentralPanel::default().show(ctx, |ui| {
            let response = ui.ctx().read_response(ui.next_auto_id());

            let pressed = response
                .as_ref()
                .is_some_and(|r| r.is_pointer_button_down_on());

            let hovered = response.as_ref().is_some_and(|r| r.hovered());

            let target_scale = match (pressed, hovered) {
                (true, _) => 0.94,
                (_, true) => 1.06,
                _ => 1.0,
            };

            let scale = ui
                .ctx()
                .animate_value_with_time(ui.id().with("Down"), target_scale, 0.1);

            let mut center = response
                .as_ref()
                .map(|r| r.rect.center())
                .unwrap_or_else(|| Pos2::new(0.0, 0.0));
            if center.any_nan() {
                center = Pos2::new(0.0, 0.0);
            }

            let transform = TSTransform::from_translation(center.to_vec2())
                * TSTransform::from_scaling(scale)
                * TSTransform::from_translation(-center.to_vec2());

            ui.with_visual_transform(transform, |ui| {
                Button::new(RichText::new("Yaaaay").size(20.0))
                    .sense(Sense::click())
                    .ui(ui)
            });
        });
    })
}

```
2024-09-10 11:04:13 +02:00
YgorSouza f897405a82
Use precomputed lookup table in Color32::from_rgba_unmultiplied (#5088)
Improves performances significantly (about 40 times) according to the
benchmarks.

* Closes <https://github.com/emilk/egui/issues/5086>
* [x] I have followed the instructions in the PR template
2024-09-10 09:50:56 +02:00
Tiaan Louw 1ccd056d19
Remove reference to egui::Color32. (#5011)
As most of the code refers to types in epaint, it makes sense to use the
Color32 alias from epaint as well.

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2024-09-09 14:34:13 +02:00
Nicolas 1c293d4cc8
Update `glow` to 0.14 (#4952)
Before making this PR, I did take notice of a similar PR,
https://github.com/emilk/egui/pull/4833, but as it appears to be
abandoned, I decided to make this PR.

**Missing**
One of the checks doesn't pass as wgpu still uses glow `0.13.1`

```shell
cargo deny --all-features --log-level error --target aarch64-apple-darwin check
```

* [x] I have followed the instructions in the PR template

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-09-09 14:02:06 +02:00
Simon 9000d16d83
Export module `egui::frame` (#5087)
Remove the crate visibility of the frame module. Useful at least when
using `Frame::begin` as otherwise the returned type is opaque to library
users and prevents from creating containers that use `Frame` with a
similar interface.

Alternative is to only export `frame::Prepared` as `PreparedFrame` or
something, but I saw that other submodules of containers are already
public.

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* Closes #2106
* [x] I have followed the instructions in the PR template
2024-09-09 11:11:52 +02:00
Tau Gärtli 49fb163ae9
Add return value to `with_accessibility_parent` (#5083)
Extracted out of #4805

In [`egui-theme-switch`] I'm allocating a response inside the closure
passed to `with_accessibility_parent` so that my radio buttons have the
radio group as parent.

I'm working around the lack of return value with a custom extension
trait for now: [`ContextExt`]

* [x] I have followed the instructions in the PR template

[`egui-theme-switch`]:
https://github.com/bash/egui-theme-switch/blob/main/src/lib.rs
[`ContextExt`]:
https://github.com/bash/egui-theme-switch/blob/main/src/context_ext.rs
2024-09-09 10:36:56 +02:00
Tau Gärtli c6375efa22
Add `WidgetType::RadioGroup` (#5081)
Extracted out of #4805

I'm using this widget type in [`egui-theme-switch`] but since it's not
built in I have to call `accesskit_node_builder` which is a bit
cumbersome :)

* [x] I have followed the instructions in the PR template

[`egui-theme-switch`]:
https://github.com/bash/egui-theme-switch/blob/main/src/lib.rs
2024-09-09 10:36:13 +02:00
Emil Ernerfeldt 6b7f431237
Fix text sometime line-breaking or truncating too early (#5077) 2024-09-06 13:24:11 +02:00
Emil Ernerfeldt b2dcb7d8db
Fix bug in size calculation of truncated text (#5076)
The width of the elision character (`…`) was never included in the size
calculation
2024-09-06 11:30:32 +02:00
Emil Ernerfeldt 7cb61f8031
Deprecate `ui.set_sizing_pass` (#5074)
Use `UiBuilder::new().sizing_pass().invisible()` instead.

Also changes `UiBuilder::sizing_pass` to no longer turn the ui
invisible. You'll have to opt-in to that instead when it makes sense,
e.g. for the first frame of a tooltip, but not when auto-sizing a column
in a `Table`.
2024-09-05 12:44:12 +02:00
Girts f74152988f
Add `Options::input_options` for click-delay etc (#4942)
This takes 3 hardcoded constants from `input_state.rs` and puts them in
a `InputOptions` struct that then gets added to `Options`. This allows
adjusting these values at runtime, for example, to increase
`MAX_CLICK_DIST` for touchscreen usage.

* [x] I have followed the instructions in the PR template
2024-09-05 08:49:17 +02:00
Liam Rosenfeld df9cd21248
Conditionally propagate web events using a filter in WebOptions (#5056)
Currently egui will prevent all web events from propagating. This causes
issues in contexts where you are using egui in a larger web context that
wants to receive events that egui does not directly respond to. For
example, currently using egui in a VSCode extension will block all app
hotkeys, such as saving and opening the panel.

This adds a closure to `WebOptions` that takes in a reference to the
egui event that is generated from a web event and returns if the
corresponding web event should be propagated or not. The default for it
is to always return false.

Alternatives I considered were:
1. Having the propagation filter be a property of the focus in memory.
That way it could be configured by the view currently selected. I opted
away from that because I wanted to avoid lowering eframe implementation
specific stuff into egui.
2. Having events contain a `web_propagate` flag that could be set when
handling them. However, that would not be compatible with the current
system of egui events being handled outside of the web event handler.

I just recently started using egui so I am not sure how idiomatic my
approach here is. I would be happy to switch this over to a different
architecture if there are suggestions.

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2024-09-05 08:48:13 +02:00
Emil Ernerfeldt 2be93aca5d Fix visual glitch in `scroll_bar_rect` added in #5070 2024-09-05 08:09:35 +02:00
Emil Ernerfeldt 9fe4028f43
Add `ScrollArea::scroll_bar_rect` (#5070)
Useful for constraining the scroll bars to a smaller area. This will be
used by the new `egui_table` crate
(https://github.com/rerun-io/egui_table)


![egui_table](https://github.com/user-attachments/assets/cf2a4946-914d-4f5f-91f8-63da08345413)
2024-09-04 21:20:26 +02:00
Emil Ernerfeldt 0b92b93233
Add `ui.shrink_clip_rect` (#5068) 2024-09-04 17:01:41 +02:00
Antoine Beyeler 454abf705b
Add generic return values to `egui::Sides::show()` (#5065)
This addresses this comment:
- https://github.com/rerun-io/rerun/pull/7344#discussion_r1742140870


* [x] I have followed the instructions in the PR template
2024-09-03 16:25:22 +02:00
Tim Straubinger b9435541df
Allow non-`static` `eframe::App` lifetime (#5060)
I love egui! Thank you Emil <3

This request specifically enables an `eframe::App` which stores a
lifetime.

In general, I believe this is necessary because `eframe::App` currently
does not seem to provide a good place to allocate and then borrow from
long-lived data between `update()` calls. To attempt to borrow such
long-lived data from a field of the `App` itself would be to create a
self-referential struct. A hacky alternative is to allocate long-lived
data with `Box::leak`, but that's a code smell and would cause problems
if a program ever creates multiple Apps.

As a more specific motivating example, I am developing with the
[inkwell](https://github.com/TheDan64/inkwell/) crate which requires
creating a `inkwell::context::Context` instance which is then borrowed
from by a bazillion things with a dedicated `'ctx` lifetime. I need such
a `inkwell::context::Context` for the duration of my `eframe::App` but I
can't store it as a field of the app. The most natural solution to me is
to simply to lift the inkwell context outside of the App and borrow from
it, but that currently fails because the AppCreator implicitly has a
`'static` lifetime requirement due to the use of `dyn` trait objects.

Here is a simpler, self-contained motivating example adapted from the
current [hello world example](https://docs.rs/eframe/latest/eframe/):

```rust
use eframe::egui;

struct LongLivedThing {
    message: String,
}

fn main() {
    let long_lived_thing = LongLivedThing {
        message: "Hello World!".to_string(),
    };

    let native_options = eframe::NativeOptions::default();
    eframe::run_native(
        "My egui App",
        native_options,
        Box::new(|cc| Ok(Box::new(MyEguiApp::new(cc, &long_lived_thing)))),
        //                                           ^^^^^^^^^^^^^^^^^
        //                                           BORROWING from long_lived_thing in App
    );
}

struct MyEguiApp<'a> {
    long_lived_thing: &'a LongLivedThing,
}

impl<'a> MyEguiApp<'a> {
    fn new(cc: &eframe::CreationContext<'_>, long_lived_thing: &'a LongLivedThing) -> Self {
        // Customize egui here with cc.egui_ctx.set_fonts and cc.egui_ctx.set_visuals.
        // Restore app state using cc.storage (requires the "persistence" feature).
        // Use the cc.gl (a glow::Context) to create graphics shaders and buffers that you can use
        // for e.g. egui::PaintCallback.
        MyEguiApp { long_lived_thing }
    }
}

impl<'a> eframe::App for MyEguiApp<'a> {
    fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
        egui::CentralPanel::default().show(ctx, |ui| {
            ui.heading(&self.long_lived_thing.message);
        });
    }
}
```

This currently fails to compile with:
```plaintext
error[E0597]: `long_lived_thing` does not live long enough
  --> src/main.rs:16:55
   |
16 |         Box::new(|cc| Ok(Box::new(MyEguiApp::new(cc, &long_lived_thing)))),
   |         ----------------------------------------------^^^^^^^^^^^^^^^^----
   |         |        |                                    |
   |         |        |                                    borrowed value does not live long enough
   |         |        value captured here
   |         cast requires that `long_lived_thing` is borrowed for `'static`
17 |     );
18 | }
   | - `long_lived_thing` dropped here while still borrowed
   |
   = note: due to object lifetime defaults, `Box<dyn for<'a, 'b> FnOnce(&'a CreationContext<'b>) -> Result<Box<dyn App>, Box<dyn std::error::Error + Send + Sync>>>` actually means `Box<(dyn for<'a, 'b> FnOnce(&'a CreationContext<'b>) -> Result<Box<dyn App>, Box<dyn std::error::Error + Send + Sync>> + 'static)>`
```

With the added lifetimes in this request, I'm able to compile and run
this as expected on Ubuntu + Wayland. I see the CI has been emailing me
about some build failures and I'll do what I can to address those.
Currently running the check.sh script as well.

This is intended to resolve https://github.com/emilk/egui/issues/2152

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* Closes https://github.com/emilk/egui/issues/2152
* [x] I have followed the instructions in the PR template
2024-09-03 09:29:19 +02:00
Emil Ernerfeldt 7bac528d4d
Add `egui::Sides` for adding UI on left and right sides (#5036)
* Closes https://github.com/emilk/egui/issues/5015
2024-09-02 10:47:20 +02:00
Nicolas be944f0915
Rename `id_source` to `id_salt` (#5025)
* Closes <https://github.com/emilk/egui/issues/5020 >
* [x] I have followed the instructions in the PR template
2024-09-02 09:29:01 +02:00
YgorSouza edea5a40b9
Remove the `directories` dependency (#4904)
eframe now has its own logic to find the storage_dir to persist the app
when the persistence feature is enabled, instead of using the
directories crate. The directory should be the same as before (verified
with a unit test).

* Closes <https://github.com/emilk/egui/issues/4884>
* [x] I have followed the instructions in the PR template
2024-09-01 10:47:28 +02:00
rustbasic 2a6a1302b8
Fix viewport not working when minimized (#5042)
Fix: The viewport stops working when the program is minimized.   

Fix: Logically, the weird parts have been normalized.
                                                               
**Issue :**
The viewport stops working when the program is minimized.
                         
* Related #3321
* Related #3877
* Related #3985
* Closes #3972
* Closes #4772
* Related #4832 
* Closes #4892
**Solution :**
When `request_redraw()` is performed in Minimized state, the occasional
screen tearing phenomenon has disappeared.
( Probably expected to be the effect of #4814 )
To address the issue of the `Immediate Viewport` not updating in
Minimized state, we can call `request_redraw()`.
2024-09-01 10:34:48 +02:00
Nicolas 90eeb76635
Make some `Memory` methods public (#5046)
Adding the proposed changes from @SymmetricChaos

* Closes https://github.com/emilk/egui/issues/5044
* [x] I have followed the instructions in the PR template
* [x] I ran the check script
2024-09-01 10:24:58 +02:00
Emil Ernerfeldt 7db8797850 Fix typo 2024-09-01 10:23:40 +02:00
Guillaume Gomez da04339f5e
Enable rustdoc `generate-link-to-definition` feature on docs.rs (#5030)
You can see this feature in action
[here](https://docs.rs/sysinfo/latest/src/sysinfo/common/system.rs.html#46)
or on any of dtolnay's crates and many others. I found myself going
through your project code recently on docs.rs and I was a bit sad I
couldn't have this feature enabled. This should fix it at next release.
:)
2024-08-30 11:22:29 +02:00
Juan Campa f2815b423e
Fix blurry lines (#4943)
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* Closes <https://github.com/emilk/egui/issues/4776>
* [x] I have followed the instructions in the PR template



I've been meaning to look into this for a while but finally bit the
bullet this week. Contrary to what I initially thought, the problem of
blurry lines is unrelated to feathering because it also happens with
feathering disabled.

The root cause is that lines tend to land on pixel boundaries, and
because of that, frequently used strokes (e.g. 1pt), end up partially
covering pixels. This is especially noticeable on 1ppp displays.

There were a couple of things to fix, namely: individual lines like
separators and indents but also shape strokes (e.g. Frame).

Lines were easy, I just made sure we round them to the nearest pixel
_center_, instead of the nearest pixel boundary.

Strokes were a little more complicated. To illustrate why, here’s an
example: if we're rendering a 5x5 rect (black fill, red stroke), we
would expect to see something like this:

![Screenshot 2024-08-11 at 15 01
41](https://github.com/user-attachments/assets/5a5d4434-0814-451b-8179-2864dc73c6a6)

The fill and the stroke to cover entire pixels. Instead, egui was
painting the stroke partially inside and partially outside, centered
around the shape’s path (blue line):

![Screenshot 2024-08-11 at 15 00
57](https://github.com/user-attachments/assets/4284dc91-5b6e-4422-994a-17d527a6f13b)

Both methods are valid for different use-cases but the first one is what
we’d typically want for UIs to feel crisp and pixel perfect. It's also
how CSS borders work (related to #4019 and #3284).

Luckily, we can use the normal computed for each `PathPoint` to adjust
the location of the stroke to be outside, inside, or in the middle.
These also are the 3 types of strokes available in tools like Photoshop.

This PR introduces an enum `StrokeKind` which determines if a
`PathStroke` should be tessellated outside, inside, or _on_ the path
itself. Where "outside" is defined by the directions normals point to.

Tessellator will now use `StrokeKind::Outside` for closed shapes like
rect, ellipse, etc. And `StrokeKind::Middle` for the rest since there's
no meaningful "outside" concept for open paths. This PR doesn't expose
`StrokeKind` to user-land, but we can implement that later so that users
can render shapes and decide where to place the stroke.

### Strokes test
(blue lines represent the size of the rect being rendered)

`Stroke::Middle` (current behavior, 1px and 3px are blurry)
![Screenshot 2024-08-09 at 23 55
48](https://github.com/user-attachments/assets/dabeaa9e-2010-4eb6-bd7e-b9cb3660542e)


`Stroke::Outside` (proposed default behavior for closed paths)
![Screenshot 2024-08-09 at 23 51
55](https://github.com/user-attachments/assets/509c261f-0ae1-46a0-b9b8-08de31c3bd85)



`Stroke::Inside` (for completeness but unused at the moment)
![Screenshot 2024-08-09 at 23 54
49](https://github.com/user-attachments/assets/c011b1c1-60ab-4577-baa9-14c36267438a)



### Demo App
The best way to review this PR is to run the demo on a 1ppp display,
especially to test hover effects. Everything should look crisper. Also
run it in a higher dpi screen to test that nothing broke 🙏.

Before:

![egui_old](https://github.com/user-attachments/assets/cd6e9032-d44f-4cb0-bb41-f9eb4c3ae810)


After (notice the sharper lines):

![egui_new](https://github.com/user-attachments/assets/3365fc96-6eb2-4e7d-a2f5-b4712625a702)
2024-08-30 09:57:32 +02:00
Emil Ernerfeldt 3777b8d274
Truncate text in clipped `Table` columns (#5023)
* Closes https://github.com/emilk/egui/issues/5013
* Columns with `clip = true` will have `TextWrapMode::Truncate` set
* Added setting `Column::auto_size_this_frame` (acts like a double-click
on column resizer)
* Set `sizing_pass` on all cells in a column that is being auto-sized
(e.g. on double-click)


![image](https://github.com/user-attachments/assets/360f6b59-c9a9-468b-8919-4b7e4fc6661a)
2024-08-29 10:38:19 +02:00
Nicolas 343c3d16c3
Remove wildcard imports (#5018)
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I removed (I hope so) all wildcard imports I found.

For me on my pc this improved the build time:
- for egui -5s
- for eframe -12s

* [x] I have followed the instructions in the PR template
2024-08-28 12:18:42 +02:00
Emil Ernerfeldt 82036cf59a
Add `TableBuilder::id_source` (#5022)
* Closes https://github.com/emilk/egui/issues/4982
2024-08-28 10:27:21 +02:00
rustbasic 8e5492b6e8
Fix: Ensures correct IME behavior when the text input area gains or loses focus. (#4896)
Fix: Ensures correct IME behavior when the text input area gains or
loses focus.

Fix: Handling `state.ime_enabled` in multiple `TextEdit`.
Fix: A symptom of characters being copied when there are multiple
TextEdits.

* Related #4137
* Related #4358 
* Closes #4374
* Related #4436
* Related #4794 
* Related #4908 

* Related #5008

Fix Issues: When focus is moved elsewhere, you must set
`state.ime_enabled = false`, otherwise the IME will have problems when
focus returns.

Fix Issues: A symptom of characters being copied when there are multiple
TextEdits.
Deletes all current `IME events`, preventing them from being copied to
`other TextEdits`, without saving the `TextEdit ID`,

( Related Issues: Some `LINUX` seem to trigger an IME enable event on
startup. So, when we gained focus, we do `state.ime_enabled = false`. )
2024-08-28 09:40:04 +02:00
Emil Ernerfeldt a59f9ed279
Nicer looking text selection, especially in light mode (#5017)
* Closes https://github.com/emilk/egui/issues/4727

This changes the text selection painting from being painted on top of
the text, to being painted behind the text, but in front of any text
background. The result is much nicer looking text selection, especially
in light mode:

### The new selections
<img width="198" alt="Screenshot 2024-08-27 at 18 58 35"
src="https://github.com/user-attachments/assets/bd342946-299c-44ab-bc2d-2aa8ddbca8eb">
<img width="187" alt="Screenshot 2024-08-27 at 18 59 26"
src="https://github.com/user-attachments/assets/352bed32-5150-49b9-a9f9-c7679a0d30b2">


### What selections used to look like
<img width="143" alt="Screenshot 2024-08-27 at 19 03 08"
src="https://github.com/user-attachments/assets/f3cbd798-cfed-4ad4-aa3a-d7480efcfa3c">
<img width="143" alt="Screenshot 2024-08-27 at 19 03 23"
src="https://github.com/user-attachments/assets/9925d18d-da82-4a44-8a98-ea6857ecc14f">


### New selection of some text with a background
<img width="134" alt="Screenshot 2024-08-27 at 18 59 12"
src="https://github.com/user-attachments/assets/1d291d7f-efbd-4efd-b6d2-cd63c9fc4fa4">
2024-08-27 19:09:44 +02:00
Emil Ernerfeldt 58bc67e02f
Fix compilation of `egui_extras` without `serde` feature (#5014)
* Closes https://github.com/emilk/egui/issues/4771
2024-08-27 11:38:33 +02:00
Emil Ernerfeldt bd7d71e7fd Remove dead code
Closes https://github.com/emilk/egui/issues/4867
2024-08-27 11:33:18 +02:00
Douglas Dwyer 73bb4cedb4
Prevent `ScrollArea` contents from exceeding the container size (#5006)
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
2024-08-27 10:22:32 +02:00
Hrafn Orri Hrafnkelsson 0f8614d69e
Avoid some `Id` clashes by seeding auto-ids with child id (#4840)
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>
2024-08-27 09:43:57 +02:00
Michaël Monayron 82814c4fff
Fix virtual keyboard on (mobile) web (#4855)
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 :)
2024-08-27 09:42:35 +02:00
Emil Ernerfeldt a9a6e0c2f2
Remove the need for setting `web_sys_unstable_apis` (#5000)
* No longer required since https://github.com/emilk/egui/pull/4980

And despite some outdated comments, wgpu/WebGPU doesn't need it either
2024-08-26 16:31:38 +02:00
rustbasic 47c0aeb7b9
Add `Label::halign` (#4975)
Function to specify `Align` to `Label`

There are cases where you want to display `Label` on the left or right
regardless of other `Layout` specifications.

Before : Note the part showing the rust source code.

![20240818-1](https://github.com/user-attachments/assets/a08f7594-1ec1-4c6a-b96d-1a5f735d02c1)

After : Note the part showing the rust source code.

![20240818-2](https://github.com/user-attachments/assets/807ff9cf-f8cd-4415-9c78-b62869d1696d)

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
2024-08-26 15:38:00 +02:00
Nicolas 5a1ab9b2b8
Add `Slider::max_decimals_opt` (#4953)
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`
2024-08-26 15:36:50 +02:00
VinTarZ 9f2f5f7292
Fix eframe centering on multiple monitor systems (#4919)
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
2024-08-26 15:36:30 +02:00
Emil Ernerfeldt 0513c05768
Fix CI (#5005) 2024-08-26 15:35:44 +02:00
rustbasic 555ea9f7aa
Refactor: use `if let` instead of `for` on `Option`s (#4934)
This is recommended by `rust-analyzer`

It might be a good idea to fix this to appease `rust-analyzer`.
2024-08-26 15:31:26 +02:00
Nicolas 560b2989a7
Update `web-sys` & `wasm-bindgen` (#4980)
This PR updates web-sys & wasm to the newest version.

(this was already part of the POC #4954 )

* Closes <https://github.com/emilk/egui/issues/4961>
* Closes <https://github.com/emilk/egui/issues/4958>
* [x] I have followed the instructions in the PR template
2024-08-26 11:38:30 +02:00
frederik-uni e9522cf765
Ignore viewport size/position on iOS (#4922)
I disabled some code that changes the viewport of iOS devices. 
* [X] I have followed the instructions in the PR template
2024-08-26 11:34:39 +02:00
rustbasic ba80038f3d
`egui_extras`: Fix file mime from path (wrong feature name) (#4933)
Fix: features "mime_guess" to "file"

typo: 1

Is this what you intended?
If you intended to add `mime_guess` to `cargo.toml`, please drop it.
2024-08-26 11:24:08 +02:00
YgorSouza a0c4e28b65
Fix `Id` clash in `Frame` styling widget (#4967)
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
2024-08-26 11:19:51 +02:00
Oscar Gustafsson cc3a09187d
Deprecate `ahash` re-exports (#4979)
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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.
2024-08-26 10:41:16 +02:00
lucasmerlin c9e00e50ad
Fix iOS build, and add iOS step to CI (#4898)
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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
2024-08-26 09:48:12 +02:00
Zoxc f996b9050e
Request focus on a `TextEdit` when clicked (#4991)
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.
2024-08-26 09:45:56 +02:00
rustbasic fd0ce5fb65
Add `TextWrapMode` in `Style ui` (#4994)
Add `TextWrapMode` in `Style ui`

I think this would be useful for debugging.
2024-08-26 09:41:54 +02:00
pm100 0c528fb862
Fix crash when changing viewport settings (#4862)
* 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.
2024-08-26 08:55:34 +02:00
Emil Ernerfeldt 5a196f6604
Create a `UiBuilder` for building `Ui`s (#4969)
* Part of https://github.com/emilk/egui/issues/4634

The goals is to create fewer, more powerful entry points.


### Added
* `egui::UiBuilder`
* `Ui::allocate_new_ui`
* `Ui::new_child`

### Breaking changes
* `Ui::new` now takes a `UiBuilder`
* Deprecated
	* `ui.add_visible_ui`
	* `ui.allocate_ui_at_rect`
	* `ui.child_ui`
	* `ui.child_ui_with_id_source`
	* `ui.push_stack_info`
2024-08-26 08:51:18 +02:00
Andreas Reich 9a1e358a14
Update to wgpu 22.1 (#4964)
Updates to wgpu 22.1, removing a workaround that was needed for wgpu
22.0
2024-08-16 13:29:40 +02:00
Arthur Brussee 1f6ae49a5f
Unpin & upgrade winit to 0.30.5 (#4939)
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.
2024-08-09 09:15:14 +02:00
Tau Gärtli 2dac4a4fc6
Follow the System Theme in egui (#4860)
* 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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### 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>
2024-08-06 20:17:51 +02:00
PrimmR ed0254288a
Update `Button` to correctly align contained image (#4891)
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

![Before](https://github.com/user-attachments/assets/b5086ccb-765d-42e6-88a5-8fa427544568)

### After

![After](https://github.com/user-attachments/assets/ecf6c6aa-b1b9-4b45-be44-8c71665df5c3)

* [x] I have followed the instructions in the PR template
2024-08-05 11:19:20 +02:00
rustbasic 76fe6c855b
Fix: Backspace not working after IME input (#4912)
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)`
2024-08-05 11:09:51 +02:00
Tau Gärtli 71dbc48818
Fix missing `winit` feature in `egui_glow` (#4916)
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
2024-08-05 11:06:42 +02:00
Emil Ernerfeldt d856f7b3a5 Fix typos 2024-07-31 18:49:08 +02:00
Emil Ernerfeldt 8dc2ba2fe9 Refactor: add `TitleBar::new` in `window.rs` 2024-07-31 18:44:05 +02:00
Ardocrat dfbc7f0d19
Fix iOS compilation of eframe (#4851)
Fixed changed the name of function `WinitApp::get_window_winit_id` to
`WinitApp::window_id_from_viewport_id` and missed `egui::ViewportId`
import.
2024-07-31 10:18:18 +02:00
lucasmerlin c5bea3113e
Make `scroll_to_*` animations configurable (#4305)
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* Closes #4295

I based this on #4303, I'll rebase once that one gets merged.
2024-07-31 09:54:29 +02:00
Alex Pinkus ae7672e336
Move default fonts to new crate `epaint_default_fonts` (#4853)
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>
2024-07-31 09:50:02 +02:00
Arthur Brussee 6f2f006885
Upgrade winit to 0.30.2 (#4849)
* 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>
2024-07-31 09:43:16 +02:00
PrimmR 37b1e1504d
Fix: hint text follows the alignment set on the `TextEdit` (#4889)
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

![Prev](https://github.com/user-attachments/assets/8cd7858f-833e-4946-84f1-ff1ede60c64d)


### Updated Behaviour

![Update](https://github.com/user-attachments/assets/2596dd44-d6f9-4376-9012-5b074fc2cdea)

* [x] I have followed the instructions in the PR template
2024-07-30 21:03:52 +02:00
Tyler Stevens 7736192722
Clarified `eframe::run_simple_native()` persistence (#4846)
* [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.
2024-07-30 21:01:10 +02:00
Onè 057033ef34
Fix typos in egui docstrings (#4869)
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self-review using the script as it's only a single word change).
2024-07-30 21:00:47 +02:00
rustbasic 378df03910
Clamp margin values in `Margin::ui` (#4873)
limit margin value in `settings.ui()`.

Issues: If the `window margin` of `settings.ui()` becomes -10.0 or less,
a panic occurs.
2024-07-30 20:11:33 +02:00
Andreas Reich 64d5f948e4
Workaround for wgpu crash when surface is dropped last (#4876)
* Fixes https://github.com/emilk/egui/issues/4874
* Details see https://github.com/gfx-rs/wgpu/pull/6052
2024-07-26 10:10:23 +02:00
Salman Abuhaimed 34db001db1
Force canvas/text input focus on touch for iOS web browsers (#4848) 2024-07-23 18:16:51 +02:00
Simon Niedermayr 56df31ab48
upgrade to wgpu 22.0.0 (#4847)
wgpu changelog: https://github.com/gfx-rs/wgpu/releases/tag/v22.0.0

---------

Co-authored-by: Andreas Reich <r_andreas2@web.de>
2024-07-19 10:05:56 +02:00
frederik-uni b2d74eaef6
Return `ScrollAreaOutput` from `Table::body` (#4829)
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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
2024-07-15 20:49:41 +02:00
Xavier Lau 1741f0a51c
Make sure SVGs are crisp (#4823)
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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!
2024-07-15 20:49:29 +02:00
zk 27e648a335
Add `Rect::scale_from_center` (#4673)
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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>
2024-07-15 19:54:35 +02:00
Jan Procházka 0d89e31e3e
Use canvas directly (#4780) 2024-07-15 18:59:15 +02:00
Emil Ernerfeldt cb9f30482f
Move `egui_plot` to its own repo (#4828)
* Part of https://github.com/emilk/egui/issues/4705

`egui_plot` can now be found at https://github.com/emilk/egui_plot
2024-07-15 18:45:19 +02:00
Emil Ernerfeldt 8d2df5491e
Remove some debug asserts (#4826)
* Closes https://github.com/emilk/egui/issues/4825
2024-07-15 11:20:22 +02:00
v0x0g 1bee7bfefa
Add `Ui::columns_const()` (#4764)
# 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
2024-07-15 11:19:34 +02:00
Wybe Westra 1adc3d8865
Add undo/redo demo. (#4811)
* 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>
2024-07-15 10:54:34 +02:00
Addis Webb 2b9595ee3c
Add `TableRow::set_hovered` (#4820)
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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
2024-07-15 10:36:29 +02:00
Xavier Lau a6ab126e47
Slider: round to decimals after applying `step_by` (#4822)
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* Closes https://github.com/emilk/egui/discussions/4670
* [x] I have followed the instructions in the PR template
2024-07-15 10:28:45 +02:00
Antoine Beyeler 08c75d75c9
Change default `max_scroll_height` of `egui::Table` to `f32::INFINITY` (#4817)
`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.
2024-07-12 10:03:59 +02:00
Wojciech Muła 7f899c1d07
epaint: add some missing inline docs (#4815)
Document a few `Mesh` methods.
2024-07-11 11:52:27 +02:00
rustbasic 20359a870f
eframe: Improve `glow` context switching (#4814)
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.
2024-07-11 11:43:21 +02:00
Nicolas Bircks 3b8453e920
Add a menu button with text and image (#4748)
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>
2024-07-09 16:51:41 +02:00
Joe Sorensen aa96b25746
`egui-wgpu`: Ensure that `WgpuConfiguration` is `Send + Sync` (#4803)
As far as I can tell, there's no reason that this shouldn't be the case
2024-07-08 23:25:29 +02:00
Jonas Wagner b283b8a560
Introduce dithering to reduce banding (#4497)
This PR introduces dithering in the egui_glow and egui_wgpu backends to
reduce banding artifacts.

It's based on the approach mentioned in #4493 with the small difference
that the amount of noise is scaled down slightly to avoid dithering
colors that can be represented exactly. This keeps flat surfaces clean.

Exaggerated dithering to show what is happening:
![Screenshot from 2024-05-14
19-09-48](https://github.com/emilk/egui/assets/293536/75782b83-9023-4cb2-99f7-a24e15fdefcc)

Subtle dithering as commited.
![Screenshot from 2024-05-14
19-13-40](https://github.com/emilk/egui/assets/293536/eb904698-a6ec-494a-952b-447e9a49bfda)

Closes #4493
2024-07-08 09:57:11 +02:00
rustbasic fcd02bd7d1
Handle the IME event first in `TextEdit` to fix some bugs (#4794)
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.
2024-07-07 22:03:13 +02:00
rustbasic cd1e4c573a
Remove dead code (`EpiIntegration::frame_start`) (#4790)
`frame_start` appears to be deprecated now.
( Am I wrong? )

It would be a good idea to add `#[allow(dead_code)]` or remove
`frame_start`.
2024-07-07 08:52:14 +02:00
YgorSouza 39f7368d2e
Fix typos (#4796) 2024-07-07 08:50:04 +02:00
Emil Ernerfeldt abab06867c Release 0.28.1 - Tooltip tweaks 2024-07-05 12:09:21 +02:00
Emil Ernerfeldt 13fddc6416
Hide tooltip on click (#4789)
Affects uses of `on_hover_ui_at_pointer` and `show_tooltip_at_pointer`
2024-07-05 11:53:49 +02:00
Emil Ernerfeldt f92fe5544b Document Vec2 constants 2024-07-05 11:39:47 +02:00
Emil Ernerfeldt 0a9e0c87a4
Fix occational flickering of pointer-tooltips (#4788)
Affects uses of `on_hover_ui_at_pointer` and `show_tooltip_at_pointer`
2024-07-05 11:36:26 +02:00
Emil Ernerfeldt 0be4450e3d
Smoother animations (#4787)
This makes animations slightly smoother, especially in reactive mode
2024-07-05 11:36:19 +02:00
Emil Ernerfeldt 1059e0e7f1 Fix tooltip delay, bug introduced in #4784 2024-07-05 10:27:11 +02:00
Emil Ernerfeldt 2e2366e88d
Make `serde` a default (opt-out) feature of `egui_extras` (#4786)
This is a workaround for https://github.com/emilk/egui/issues/4771 to
make it less likely to bite users
2024-07-05 10:05:40 +02:00
Emil Ernerfeldt 977d83a08f
Hide tooltips when scrolling (#4784)
* Closes #4781
2024-07-05 09:39:12 +02:00
Emil Ernerfeldt 143119943d
Show the innermost debug rectangle when pressing all modifier keys (#4782)
This is usually what the user is interested in.
2024-07-05 08:36:56 +02:00
rustbasic ad597a8491
Add `Image::uri()` (#4720)
`uri()` for image

The advantages of this are :

1. No need for `ctx()` and `source()`
2. Displays `name.gif#0` as `name.gif`
2024-07-05 08:20:20 +02:00
lucasmerlin 9a4c46289e
Check if the mouse / touch event is above the canvas via element_from_point (#4775)
* Closes #4752 

To test, start the web demo and follow the repro steps from #4752
2024-07-05 08:18:53 +02:00
Emil Ernerfeldt b31d02dd21
Fix default height of top/bottom panels (#4779)
The inner size is now `interactive_size.y`, like in 0.27.

* Closes https://github.com/emilk/egui/issues/4773
* Broke in https://github.com/emilk/egui/pull/4351

Thanks to @valadaptive for reporting and diagnosing the bug
2024-07-04 11:05:43 +02:00
Emil Ernerfeldt 042e1add41
Better documentation for `Event::Zoom` (#4778)
* Closes https://github.com/emilk/egui/issues/4777

Also add this to the 0.28 migration guide.
2024-07-04 10:31:27 +02:00
Emil Ernerfeldt 234274d46f Release 0.28.0 - Sizing pass, and better eframe web 2024-07-03 14:54:08 +02:00
Emil Ernerfeldt bca9a04acd
Use correct cursor icons when resizing panels too wide or narrow (#4769) 2024-07-03 14:33:11 +02:00
Emil Ernerfeldt 47accb0eeb Tooltip fix: Only treat enabled widgets as interactive 2024-07-03 13:11:48 +02:00
Emil Ernerfeldt 249b69d534
Make sure all tooltips close if you open a menu in the same layer (#4766) 2024-07-03 12:33:23 +02:00
Emil Ernerfeldt d1be5a1efb
Only show one tooltip per layer at a time (#4763)
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.
2024-07-03 11:28:26 +02:00
Emil Ernerfeldt c0296fb47b
When debugging widget rects on hover, show width and height (#4762)
As requested by @gavrelina


![image](https://github.com/emilk/egui/assets/1148717/15d9600a-ae2e-43dd-981b-c690f9b1bdf1)
2024-07-03 10:48:52 +02:00
Emil Ernerfeldt dca552ea48
Save `FrameState` of previous frame (#4761)
By saving the `FrameState` of the previous frame, we make it much more
versatile, and allows us to remove some other double-buffering.
2024-07-03 10:31:02 +02:00
Emil Ernerfeldt 1b06c69d01
Fix text selection when there's multiple viewports (#4760)
* Closes https://github.com/emilk/egui/issues/4758

Thanks to @lukexor for finding and diagnosing the problem!
2024-07-03 10:19:03 +02:00
Emil Ernerfeldt fcb7764e48
Fix menus and interactive popups not closing when framerate was low (#4757) 2024-07-02 21:33:22 +02:00
Emil Ernerfeldt 8ef0e85b85
egui_extras: Improve the auto-sizing of `Table` (#4756)
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.
2024-07-02 21:13:55 +02:00
Emil Ernerfeldt 753412193c
Improve `egui_extras::Table` layout (#4755)
Mostly a refactor, but some minor fixes to how it works.

Mostly preparing for a few bigger changes.
2024-07-02 20:57:46 +02:00
Emil Ernerfeldt f0e2bd8b00
Make it easier to grab the handle of a floating scroll bar (#4754)
Should solve https://github.com/rerun-io/rerun/issues/6700
2024-07-02 10:39:01 +02:00
William Zhang 770c82a3f3
Prevent `TextEdit` widgets from sending fake primary clicks (#4751)
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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>
2024-07-02 09:18:47 +02:00
Wybe Westra fa8d535fe7
Disabled widgets are now also disabled in the accesskit output (#4750)
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>
2024-07-02 09:18:30 +02:00
Emil Ernerfeldt af404fec63
Persist `Area` positions again (#4749)
* Reverts https://github.com/emilk/egui/pull/4577

We again persist area positions, but not sizes.
2024-07-01 17:33:03 +02:00
Emil Ernerfeldt 0fc79aea14 egui_demo_app: include `log::trace` in debug builds 2024-07-01 16:26:20 +02:00
Emil Ernerfeldt 7b61e426d7 eframe web: map `log::debug` to `console.debug`; not `console.trace` 2024-07-01 16:25:48 +02:00
Emil Ernerfeldt f3a0ac1d1b eframe web fix: `save()` on "blur" event 2024-07-01 16:16:56 +02:00
Emil Ernerfeldt 051b90bfc7 eframe web: Position the IME input position in the middle of the cursor 2024-07-01 16:08:20 +02:00
Emil Ernerfeldt d271718065
Fix focus problems on web (#4745)
* Closes https://github.com/emilk/egui/issues/4743
* Related to https://github.com/emilk/egui/issues/4569
2024-07-01 10:38:54 +02:00
Emil Ernerfeldt 31716d787e
Fix plot bounds of empty plots (#4741)
We would sometimes hit a `debug_assert` when plots were empty

* Closes https://github.com/rerun-io/rerun/issues/6681
2024-06-30 17:49:54 +02:00
Emil Ernerfeldt dc1f032846
Add `Style::number_formatter` as the default used by `DragValue` (#4740)
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.
2024-06-30 17:17:15 +02:00
Emil Ernerfeldt e297a1d107 Handle unicode minus character when parsing floats 2024-06-30 14:48:05 +02:00
Emil Ernerfeldt 3add56f81b Fix wrong comment 2024-06-30 14:35:46 +02:00
Emil Ernerfeldt 6222e031b5
The default parser for `DragValue` and `Slider` now ignores whitespace (#4739)
It's easy to include whitespace when copy-pasting values. Also, some
formatters use half-spaces as thousands separators.
2024-06-30 14:34:36 +02:00
Emil Ernerfeldt b6fd1cfc99
egui_plot: Improve default formatter of tick-marks (#4738)
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`.
2024-06-30 14:20:41 +02:00
Emil Ernerfeldt 17fd305967 Fix `cargo test -p egui` 2024-06-30 14:12:40 +02:00
Emil Ernerfeldt d4e8966aac
Ensure `Window` scroll bars are at the window edges (#4733)
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
2024-06-28 18:14:48 +02:00
Emil Ernerfeldt d10b3c1f4e
eframe web: Fix stuck keys after pressing ctrl+C, cmd+A, etc (#4731)
* Closes https://github.com/emilk/egui/issues/4724
2024-06-28 18:12:50 +02:00
Emil Ernerfeldt 2180f16cba
eframe web: Fix drag-and-drop file preview/hover (#4732)
* Closes https://github.com/emilk/egui/issues/4726
2024-06-28 18:07:53 +02:00
Emil Ernerfeldt 0c059ac113
Only repaint on cursor movements of area, or if dragging outside (#4730)
* Closes https://github.com/emilk/egui/issues/4723

Also fix some small bugs in the touch input on web
2024-06-28 17:40:48 +02:00
Andreas Reich 10f092d9d4
Add `clamp_to_range` option to DragValue, rename `clamp_range` to `range` (deprecating the former) (#4728)
Adds the ability to have `DragValue` not clamp values its presented with
and instead apply clamping only once there's any user input.

In action:


https://github.com/emilk/egui/assets/1220815/af42fd67-86d0-4364-8ae6-48a2ec15646a




Alternative name could be `only_clamp_on_change`, not entirely certain
which one is better 🤔
2024-06-28 16:06:59 +02:00
Emil Ernerfeldt 3b9f964aed
eframe web: ignore keyboard events unless canvas has focus (#4718)
* Fixes https://github.com/rerun-io/rerun/issues/6638
* Related? https://github.com/emilk/egui/issues/4563

This improves how an eframe canvas works inside of a larger web page,
and how it works when there are multiple eframe apps in the same page.

`eframe` will set `tabindex="0"` on the canvas automatically, making it
focusable.
It will also set `outline: none` on the CSS, so the focused canvas won't
have an ugly outline.


## Breaking changes
You may wanna add this to your `index.html` to give the canvas focus on
startup:
```js
document.getElementById("the_canvas_id").focus();
```

## Test setup
```sh
./scripts/build_demo_web.sh
./scripts/start_server.sh
open http://localhost:8888/multiple_apps.html
```
Then open the "Input Event History" and "Text Edit" windows

## Tested
* Chromium
	* [x] drag-and-drop of files
	* Test both when a `TextEdit` is focused and when it is not:
	  * [x] `Event::Key`
	  * [x] `Event::Text`
	  * [x] copy-cut-paste
	  * [x] Wheel scroll
	* [x] `Event::PointerGone`
	* [x] Mouse drag
	* [x] Mouse click
	* [x] Mouse right-click
	* [x] Defocus all eframe canvas, and then start typing text
* [x] Firefox (all of the above)
* [x] Desktop Safari (all of the above)
* [x] Mobile Safari


## Future work (pre-existing issues)
* https://github.com/emilk/egui/issues/4723
* https://github.com/emilk/egui/issues/4724
* https://github.com/emilk/egui/issues/4725
* https://github.com/emilk/egui/issues/4726
2024-06-28 15:01:06 +02:00
Wybe Westra 779312ac0c
Add basic test for egui accesskit output. (#4716)
For a project I am currently attempting to use the acceskit output of
egui to preform end-to-end integration tests of my application. However,
the output is currently quite basic (buttons for example don't report
that they are disabled).

Before adding new features to the acceskit integration, I thought it
would be a good idea to add some testing to egui's accesskit output.
I have started with a simple test for button texts, to get feedback on
whether this is the correct direction to go in.

---------

Co-authored-by: Wybe Westra <w.westra@kwantcontrols.nl>
2024-06-28 13:03:31 +02:00
Emil Ernerfeldt 254dfc1ebc
Fix broken mouse coordinates when there's padding on the canvas element (#4729)
* Closes https://github.com/emilk/egui/issues/4725

Also fixes touch input being wrong if the web page is scrolled.
2024-06-28 13:02:36 +02:00
Emil Ernerfeldt e62bd7037a Improve warning when failing to copy on web 2024-06-28 08:40:58 +02:00
Emil Ernerfeldt 814eddd094 Add warning if `window.navigator.clipboard` is null 2024-06-28 08:39:49 +02:00
Emil Ernerfeldt a0f4fafb88
Refactor web event handling: break up into smaller functions (#4717)
No change in functionality, just making the code easier to read and
change.

* Part of fixing https://github.com/rerun-io/rerun/issues/6638
2024-06-27 15:26:52 +02:00
Emil Ernerfeldt ce0e200503 Sort feature flags in egui_extras 2024-06-27 14:29:59 +02:00
Umatriz 5051e945e4
Add `PopupCloseBehavior` (#4636)
This PR adds `PopupCloseBehavior` to improve state of the
<https://github.com/emilk/egui/issues/4607>

`PopupCloseBehavior` determines when popup will be closed.
- `CloseOnClick` popup will be closed if the click happens anywhere even
in the popup's body
- `CloseOnClickAway` popup will be closed if the click happens somewhere
else but in the popup's body.

It also adds a test in the demo app which contains several popups
examples.

---

My ideas about <https://github.com/emilk/egui/issues/4607> is to make
every tooltip and popup a menu. So it will provide more control over
popups and tooltips (you will be able to close a popup by calling
something similar to the `ui.close_menu` if you need to). You won't need
to manually handle it's opening. And also will allow to have multiple
popups opened. That means you can have a popup inside a popup. And it
will also lead to the easier creation of the popups. (should we create a
tracking issue to track changes because to me it seems like a huge
amount of changes to be done?)

---

- Improvements on <https://github.com/emilk/egui/issues/4607>
2024-06-27 09:42:57 +02:00