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TextEdit Atom prefix/suffix (#7587)

Browse Source 
* part of https://github.com/emilk/egui/issues/7264
* part of https://github.com/emilk/egui/issues/7445

This PR changes the layout within the TextEdit to be done with
AtomLayout. It also adds a Prefix and Postfix that allows adding
permanent icons / icon buttons within the textedit.

Breaking changes:
- Removed `TextEdit::hint_text_font`. Hint text is an atom now, so the
font can be set that way

<img width="264" height="130" alt="Screenshot 2025-10-06 at 12 25 21"
src="https://github.com/user-attachments/assets/03b6b56b-ca82-4ac3-b5c0-585cca336834"
/>

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Co-authored-by: lucasmerlin <8009393+lucasmerlin@users.noreply.github.com>
This commit is contained in:
Lucas Meurer
2026-03-20 11:29:32 +01:00
committed by GitHub
parent ad510257de
commit 8b2315375b
31 changed files with 427 additions and 259 deletions
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2
crates/egui/src/atomics/atom_layout.rs
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@@ -203,7 +203,7 @@ impl<'a> AtomLayout<'a> {
// If the TextWrapMode is not Extend, ensure there is some item marked as `shrink`.
// If none is found, mark the first text item as `shrink`.
if wrap_mode != TextWrapMode::Extend {
let any_shrink = atoms.iter().any(|a| a.shrink);
let any_shrink = atoms.any_shrink();
if !any_shrink {
let first_text = atoms
.iter_mut()