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Add egui::Sides shrink_left / shrink_right (#7295)

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This allows contents (on one of the sides) in egui::Sides to shrink. 

* related https://github.com/rerun-io/rerun/issues/10494
This commit is contained in:
Lucas Meurer
2025-07-03 14:31:35 +02:00
committed by GitHub
parent 77df407f50
commit 2b62c68598
22 changed files with 308 additions and 40 deletions
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tests/egui_tests/tests/test_sides.rs Normal file
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use egui::{TextWrapMode, Vec2, containers::Sides};
use egui_kittest::{Harness, SnapshotResults};
#[test]
fn sides_container_tests() {
let mut results = SnapshotResults::new();
test_variants("default", |sides| sides, &mut results);
test_variants(
"shrink_left",
|sides| sides.shrink_left().truncate(),
&mut results,
);
test_variants(
"shrink_right",
|sides| sides.shrink_right().truncate(),
&mut results,
);
test_variants(
"wrap_left",
|sides| sides.shrink_left().wrap_mode(TextWrapMode::Wrap),
&mut results,
);
test_variants(
"wrap_right",
|sides| sides.shrink_right().wrap_mode(TextWrapMode::Wrap),
&mut results,
);
}
fn test_variants(
name: &str,
mut create_sides: impl FnMut(Sides) -> Sides,
results: &mut SnapshotResults,
) {
for (variant_name, left_text, right_text, fit_contents) in [
("short", "Left", "Right", false),
(
"long",
"Very long left content that should not fit.",
"Very long right text that should also not fit.",
false,
),
("short_fit_contents", "Left", "Right", true),
(
"long_fit_contents",
"Very long left content that should not fit.",
"Very long right text that should also not fit.",
true,
),
] {
let mut harness = Harness::builder()
.with_size(Vec2::new(400.0, 50.0))
.build_ui(|ui| {
create_sides(Sides::new()).show(
ui,
|left| {
left.label(left_text);
},
|right| {
right.label(right_text);
},
);
});
if fit_contents {
harness.fit_contents();
}
results.add(harness.try_snapshot(&format!("sides/{name}_{variant_name}")));
}
}