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Warn about Id clashes for Grid, Plot, ScrollArea, Table (#1452)

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Id clashes can cause subtle bugs.

egui already warns when the same Id is used to interact with different
parts of the screen.

This adds warnings about id clashes for some widgets that store state:
Grid, Plot, ScrollArea, Table.

The PR also adds `Context::check_for_id_clash` so users who create
their own widgets can add the same type of check.
This commit is contained in:
Emil Ernerfeldt
2022-04-04 13:13:34 +02:00
committed by GitHub
parent 2d30bd751c
commit c3b6d1bab9
7 changed files with 53 additions and 24 deletions
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CHANGELOG.md
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@@ -11,13 +11,14 @@ NOTE: [`epaint`](epaint/CHANGELOG.md), [`eframe`](eframe/CHANGELOG.md), [`egui_w
* Added `Frame::canvas` ([#1362](https://github.com/emilk/egui/pull/1362)).
* `Context::request_repaint` will wake up UI thread, if integrations has called `Context::set_request_repaint_callback` ([#1366](https://github.com/emilk/egui/pull/1366)).
* Added `Plot::allow_scroll`, `Plot::allow_zoom` no longer affects scrolling ([#1382](https://github.com/emilk/egui/pull/1382)).
* Added `Ui::push_id` ([#1374](https://github.com/emilk/egui/pull/1374)).
* Added `Ui::push_id` to resolve id clashes ([#1374](https://github.com/emilk/egui/pull/1374)).
* Added `Frame::outer_margin`.
### Changed 🔧
* `ClippedMesh` has been replaced with `ClippedPrimitive` ([#1351](https://github.com/emilk/egui/pull/1351)).
* Renamed `Frame::margin` to `Frame::inner_margin`.
* Renamed `AlphaImage` to `FontImage` to discourage any other use for it ([#1412](https://github.com/emilk/egui/pull/1412)).
* Warnings will pe painted on screen when there is an `Id` clash for `Grid`, `Plot` or `ScrollArea` ([#1452](https://github.com/emilk/egui/pull/1452)).
### Fixed 🐛
* Fixed ComboBoxes always being rendered left-aligned ([#1304](https://github.com/emilk/egui/pull/1304)).