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Fix incorrect line breaks #4377

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merged 3 commits into from
Apr 21, 2024
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juancampa
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@juancampa juancampa commented Apr 17, 2024

While breaking a paragraph, it was possible to lose line break candidates that could've been used on the next line, causing egui to unnecessarily overrun wrap.max_width.

This PR fixes it so that we don't forget about those candidates.

Before:
Note that the window can't resize to the requested width because the text is not wrapping.

Screenshot.2024-04-17.at.18.50.17.mp4

After:

Screenshot.2024-04-17.at.18.49.20.mp4

@juancampa
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@emilk in our fork we also removed the last line from here:

fn get(&self, break_anywhere: bool) -> Option<usize> {
if break_anywhere {
self.any
} else {
self.word_boundary()
.or(self.dash)
.or(self.punctuation)
.or(self.any)
}
}

We removed .or(self.any) because when break_anywhere is false, we would rather overrun the max_width instead of splitting words into single characters vertically (which looks very broken). Last time I checked, that was the behavior of browsers too, Happy to also apply this change here.

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Good catch!

crates/epaint/src/text/text_layout.rs Outdated Show resolved Hide resolved
@emilk
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emilk commented Apr 18, 2024

We removed .or(self.any) because when break_anywhere is false, we would rather overrun the max_width instead of splitting words into single characters vertically (which looks very broken). Last time I checked, that was the behavior of browsers too, Happy to also apply this change here.

I can see both behaviors being valuable. The current behavior makes sense when you really can't expand the parent, so you want it as thing as possible. And browser do it sometimes:

Screenshot 2024-04-18 at 10 05 40

Let's consider it for another PR

@emilk emilk added egui epaint bug Something is broken labels Apr 18, 2024
Co-authored-by: Emil Ernerfeldt <[email protected]>
@emilk emilk merged commit c630a8d into emilk:master Apr 21, 2024
8 of 19 checks passed
@emilk emilk mentioned this pull request May 29, 2024
7 tasks
emilk added a commit to rerun-io/rerun that referenced this pull request May 29, 2024
* Uses: rerun-io/egui_tiles#67
* Uses: lampsitter/egui_commonmark#51
* Split off from #6171
* Closes #5280

### Test
* [x] image loading
* [x] gltf
 
### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested the web demo (if applicable):
* Using examples from latest `main` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/6448?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/6448?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG
* [x] If applicable, add a new check to the [release
checklist](https://github.com/rerun-io/rerun/blob/main/tests/python/release_checklist)!

- [PR Build Summary](https://build.rerun.io/pr/6448)
- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
- [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)

To run all checks from `main`, comment on the PR with `@rerun-bot
full-check`.

# egui changelog so far

Full diff at https://github.com/emilk/egui/compare/0.27.0..HEAD

#### ecolor
* Fix `hex_color!` macro by re-exporting `color_hex` crate from `ecolor`
[#4372](emilk/egui#4372) (thanks
[@dataphract](https://github.com/dataphract)!)
* Remove `extra_asserts` and `extra_debug_asserts` feature flags
[#4478](emilk/egui#4478)

#### eframe
* Add `register_native_texture` in `eframe::Frame`
[#4246](emilk/egui#4246) (thanks
[@Chaojimengnan](https://github.com/Chaojimengnan)!)
* Early-out from context switching the `glow` backend
[#4284](emilk/egui#4284)
* Fix `ViewportCommand::InnerSize` not resizing viewport on Wayland
(#4211) [#4211](emilk/egui#4211) (thanks
[@rustbasic](https://github.com/rustbasic)!)
* Only avoid glow context switching on Windows
[#4296](emilk/egui#4296)
* Improve IME support with new `Event::Ime`
[#4358](emilk/egui#4358) (thanks
[@rustbasic](https://github.com/rustbasic)!)
* Allow users to create viewports larger than monitor on Windows & macOS
[#4337](emilk/egui#4337) (thanks
[@lopo12123](https://github.com/lopo12123)!)
* Use `objc2` and its framework crates
[#4395](emilk/egui#4395) (thanks
[@madsmtm](https://github.com/madsmtm)!)
* Update to Rust 1.76 [#4411](emilk/egui#4411)
* Egui-winit: emit physical key presses when a non-Latin layout is
active [#4461](emilk/egui#4461) (thanks
[@TicClick](https://github.com/TicClick)!)
* IME for chinese [#4436](emilk/egui#4436)
(thanks [@rustbasic](https://github.com/rustbasic)!)
* Fix : In Windows, the 'egui_demo_app' screen does not appear.
[#4410](emilk/egui#4410) (thanks
[@rustbasic](https://github.com/rustbasic)!)
* Fix: Window position creeps between executions on scaled monitors
[#4443](emilk/egui#4443) (thanks
[@avery-radmacher](https://github.com/avery-radmacher)!)
* Update `image` crate to 0.25
[#4160](emilk/egui#4160)
* Ignore synthetic key presses
[#4514](emilk/egui#4514) (thanks
[@hut](https://github.com/hut)!)
* Fix: still track mouse when dragging outside web canvas
[#4522](emilk/egui#4522)
* Add `NativeOptions::persistence_path`
[#4423](emilk/egui#4423) (thanks
[@lucasmerlin](https://github.com/lucasmerlin)!)
* Use ResizeObserver instead of `resize` event
[#4536](emilk/egui#4536) (thanks
[@jprochazk](https://github.com/jprochazk)!)
* Fix: Don't `.forget()` RAF closure
[#4551](emilk/egui#4551) (thanks
[@jprochazk](https://github.com/jprochazk)!)

#### egui_extras
* Update `image` crate to 0.25
[#4160](emilk/egui#4160)

#### egui_plot
* `Plot::Items:allow_hover` give possibility to masked the interaction
on hovered item [#2558](emilk/egui#2558) (thanks
[@haricot](https://github.com/haricot)!)
* Expose `ClosestElem` and `PlotConfig`
[#4380](emilk/egui#4380) (thanks
[@Narcha](https://github.com/Narcha)!)
* Disable interaction for `ScrollArea` and `Plot` when UI is disabled
[#4457](emilk/egui#4457) (thanks
[@varphone](https://github.com/varphone)!)
* Make sure plot size is positive
[#4429](emilk/egui#4429) (thanks
[@rustbasic](https://github.com/rustbasic)!)
* Introduce lifetime to `egui_plot::Plot` to replace `'static` fields
[#4435](emilk/egui#4435) (thanks
[@Fabus1184](https://github.com/Fabus1184)!)
* Hide all other series when alt-clicking in the legend
[#4549](emilk/egui#4549) (thanks
[@abey79](https://github.com/abey79)!)
* Plot now respects the `interact_radius` set in the UI's style
[#4520](emilk/egui#4520) (thanks
[@YgorSouza](https://github.com/YgorSouza)!)

#### egui_glow
* Enable egui_glow's winit feature on wasm (#4420)
[#4421](emilk/egui#4421) (thanks
[@simon-frankau](https://github.com/simon-frankau)!)

#### egui-wgpu
* Update to wgpu 0.20 [#4433](emilk/egui#4433)
(thanks [@KeKsBoTer](https://github.com/KeKsBoTer)!)
* Revert update to wgpu 0.20 => downgrade to wgpu 0.19.1
[#4559](emilk/egui#4559)

#### egui-winit
* Update `webbrowser` to `v1.0.0`
[#4394](emilk/egui#4394) (thanks
[@torokati44](https://github.com/torokati44)!)
* Emit physical key presses when a non-Latin layout is active
[#4461](emilk/egui#4461) (thanks
[@TicClick](https://github.com/TicClick)!)
* IME for chinese [#4436](emilk/egui#4436)
(thanks [@rustbasic](https://github.com/rustbasic)!)
* Fix: Window position creeps between executions on scaled monitors
[#4443](emilk/egui#4443) (thanks
[@avery-radmacher](https://github.com/avery-radmacher)!)
* Ignore synthetic key presses
[#4514](emilk/egui#4514) (thanks
[@hut](https://github.com/hut)!)

#### egui
* Improve the UI for changing the egui theme
[#4257](emilk/egui#4257)
* Change the resize cursor when you reach the resize limit
[#4275](emilk/egui#4275)
* Make `TextEdit` an atomic widget
[#4276](emilk/egui#4276)
* Overload operators for `Rect + Margin`, `Rect - Margin` etc
[#4277](emilk/egui#4277)
* Implement blinking text cursor in `TextEdit`
[#4279](emilk/egui#4279)
* Rename `fn scroll2` to `fn scroll`
[#4282](emilk/egui#4282)
* Change `Frame::multiply_with_opacity` to multiply in gamma space
[#4283](emilk/egui#4283)
* Support order on windows
[#4301](emilk/egui#4301) (thanks
[@alexparlett](https://github.com/alexparlett)!)
* Fix wrong replacement function in deprecation notice of
`drag_released*` [#4314](emilk/egui#4314)
(thanks [@sornas](https://github.com/sornas)!)
* Consider layer transform when positioning text agent
[#4319](emilk/egui#4319) (thanks
[@juancampa](https://github.com/juancampa)!)
* Fix incorrect line breaks
[#4377](emilk/egui#4377) (thanks
[@juancampa](https://github.com/juancampa)!)
* Fix `hex_color!` macro by re-exporting `color_hex` crate from `ecolor`
[#4372](emilk/egui#4372) (thanks
[@dataphract](https://github.com/dataphract)!)
* Change `Ui::allocate_painter` to inherit properties from `Ui`
[#4343](emilk/egui#4343) (thanks
[@varphone](https://github.com/varphone)!)
* Use parent `Ui`s style for popups
[#4325](emilk/egui#4325) (thanks
[@alexparlett](https://github.com/alexparlett)!)
* Fix : take `rounding` into account when using `Slider::trailing_fill`
[#4308](emilk/egui#4308) (thanks
[@rustbasic](https://github.com/rustbasic)!)
* Add a way to specify Undoer settings and construct Undoers more easily
[#4357](emilk/egui#4357) (thanks
[@valadaptive](https://github.com/valadaptive)!)
* Add xtask crate [#4293](emilk/egui#4293)
(thanks [@YgorSouza](https://github.com/YgorSouza)!)
* Add `ViewportCommand::RequestCut`, `RequestCopy` and `RequestPaste` to
trigger Clipboard actions
[#4035](emilk/egui#4035) (thanks
[@bu5hm4nn](https://github.com/bu5hm4nn)!)
* Fix `Panel` incorrect size
[#4351](emilk/egui#4351) (thanks
[@zhatuokun](https://github.com/zhatuokun)!)
* Improve IME support with new `Event::Ime`
[#4358](emilk/egui#4358) (thanks
[@rustbasic](https://github.com/rustbasic)!)
* Allow users to create viewports larger than monitor on Windows & macOS
[#4337](emilk/egui#4337) (thanks
[@lopo12123](https://github.com/lopo12123)!)
* Added ability to define colors at UV coordinates along a path
[#4353](emilk/egui#4353) (thanks
[@murl-digital](https://github.com/murl-digital)!)
* Eframe: update ViewportBuilder.with_icon() documentation
[#4408](emilk/egui#4408) (thanks
[@roccoblues](https://github.com/roccoblues)!)
* Update to Rust 1.76 [#4411](emilk/egui#4411)
* Add a `Display` impl for `Vec2`, `Pos2`, and `Rect`
[#4428](emilk/egui#4428) (thanks
[@tgross35](https://github.com/tgross35)!)
* Remove `extra_asserts` and `extra_debug_asserts` feature flags
[#4478](emilk/egui#4478)
* Egui-winit: emit physical key presses when a non-Latin layout is
active [#4461](emilk/egui#4461) (thanks
[@TicClick](https://github.com/TicClick)!)
* Disable interaction for `ScrollArea` and `Plot` when UI is disabled
[#4457](emilk/egui#4457) (thanks
[@varphone](https://github.com/varphone)!)
* Update ahash 0.8.6 -> 0.8.11
[#4507](emilk/egui#4507) (thanks
[@hellodword](https://github.com/hellodword)!)
* `include_image!` now accepts expressions
[#4521](emilk/egui#4521) (thanks
[@YgorSouza](https://github.com/YgorSouza)!)
* Remove `Event::Scroll` and handle it in egui
[#4524](emilk/egui#4524)
* Remove scroll latency for smooth trackpads
[#4526](emilk/egui#4526)
* Smooth out zooming with discreet scroll wheel
[#4530](emilk/egui#4530)
* Add `Options::line_scroll_speed` and `scroll_zoom_speed`
[#4532](emilk/egui#4532)
* Don't panic when replacement glyph is not found
[#4542](emilk/egui#4542) (thanks
[@RyanBluth](https://github.com/RyanBluth)!)
* Make `TextEdit::return_key` optional
[#4543](emilk/egui#4543) (thanks
[@doonv](https://github.com/doonv)!)
* Add `TextEdit::hint_text_font`
[#4517](emilk/egui#4517) (thanks
[@zaaarf](https://github.com/zaaarf)!)
* Add `Options::reduce_texture_memory` to free up RAM
[#4431](emilk/egui#4431) (thanks
[@varphone](https://github.com/varphone)!)
* Fix `Ui::scroll_with_delta` only scrolling if the `ScrollArea` is
focused [#4303](emilk/egui#4303) (thanks
[@lucasmerlin](https://github.com/lucasmerlin)!)
* Add support for text truncation to `egui::Style`
[#4556](emilk/egui#4556) (thanks
[@abey79](https://github.com/abey79)!)
* Hide toolip when opening `ComboBox` drop-down
[#4546](emilk/egui#4546) (thanks
[@abey79](https://github.com/abey79)!)
* Better spacing and sizes for (menu) buttons
[#4558](emilk/egui#4558)

#### epaint
* Add `RectShape::blur_width` to implement shadows
[#4267](emilk/egui#4267)
* Overload operators for `Rect + Margin`, `Rect - Margin` etc
[#4277](emilk/egui#4277)
* Fix incorrect line breaks
[#4377](emilk/egui#4377) (thanks
[@juancampa](https://github.com/juancampa)!)
* Fix `hex_color!` macro by re-exporting `color_hex` crate from `ecolor`
[#4372](emilk/egui#4372) (thanks
[@dataphract](https://github.com/dataphract)!)
* Add `emath::OrderedFloat` (moved from `epaint::util::OrderedFloat`)
[#4389](emilk/egui#4389)
* Added ability to define colors at UV coordinates along a path
[#4353](emilk/egui#4353) (thanks
[@murl-digital](https://github.com/murl-digital)!)
* Add a `Display` impl for `Vec2`, `Pos2`, and `Rect`
[#4428](emilk/egui#4428) (thanks
[@tgross35](https://github.com/tgross35)!)
* Remove `extra_asserts` and `extra_debug_asserts` feature flags
[#4478](emilk/egui#4478)
* Make `epaint::mutex::RwLock` allow `?Sized` types
[#4485](emilk/egui#4485) (thanks
[@crumblingstatue](https://github.com/crumblingstatue)!)
* Update ahash 0.8.6 -> 0.8.11
[#4507](emilk/egui#4507) (thanks
[@hellodword](https://github.com/hellodword)!)
* Don't panic when replacement glyph is not found
[#4542](emilk/egui#4542) (thanks
[@RyanBluth](https://github.com/RyanBluth)!)

---------

Co-authored-by: Antoine Beyeler <[email protected]>
Co-authored-by: Andreas Reich <[email protected]>
hacknus pushed a commit to hacknus/egui that referenced this pull request Oct 30, 2024
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While breaking a paragraph, it was possible to lose line break
candidates that could've been used on the next line, causing egui to
unnecessarily overrun `wrap.max_width`.

This PR fixes it so that we don't forget about those candidates.


Before:
Note that the window can't resize to the requested width because the
text is not wrapping.


https://github.com/emilk/egui/assets/1410520/6430a334-2995-4b40-bc34-8f01923f9f95

After:


https://github.com/emilk/egui/assets/1410520/225fa4cd-cbbb-4a7e-9580-7f1814c05ee7

---------

Co-authored-by: Emil Ernerfeldt <[email protected]>
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