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Add Galley::intrinsic_size and use it in AtomLayout (#7146)

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- part of https://github.com/emilk/egui/issues/5762
- also allows me to simplify sizing logic in egui_flex
This commit is contained in:
Lucas Meurer
2025-07-09 08:19:04 +02:00
committed by GitHub
parent f46926aaf1
commit 508c60b2e2
9 changed files with 166 additions and 19 deletions
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18
crates/egui/src/atomics/atom_layout.rs
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@@ -183,10 +183,10 @@ impl<'a> AtomLayout<'a> {
let mut desired_width = 0.0;
// Preferred width / height is the ideal size of the widget, e.g. the size where the
// intrinsic width / height is the ideal size of the widget, e.g. the size where the
// text is not wrapped. Used to set Response::intrinsic_size.
let mut preferred_width = 0.0;
let mut preferred_height = 0.0;
let mut intrinsic_width = 0.0;
let mut intrinsic_height = 0.0;
let mut height: f32 = 0.0;
@@ -203,7 +203,7 @@ impl<'a> AtomLayout<'a> {
if atoms.len() > 1 {
let gap_space = gap * (atoms.len() as f32 - 1.0);
desired_width += gap_space;
preferred_width += gap_space;
intrinsic_width += gap_space;
}
for (idx, item) in atoms.into_iter().enumerate() {
@@ -224,10 +224,10 @@ impl<'a> AtomLayout<'a> {
let size = sized.size;
desired_width += size.x;
preferred_width += sized.preferred_size.x;
intrinsic_width += sized.intrinsic_size.x;
height = height.at_least(size.y);
preferred_height = preferred_height.at_least(sized.preferred_size.y);
intrinsic_height = intrinsic_height.at_least(sized.intrinsic_size.y);
sized_items.push(sized);
}
@@ -243,10 +243,10 @@ impl<'a> AtomLayout<'a> {
let size = sized.size;
desired_width += size.x;
preferred_width += sized.preferred_size.x;
intrinsic_width += sized.intrinsic_size.x;
height = height.at_least(size.y);
preferred_height = preferred_height.at_least(sized.preferred_size.y);
intrinsic_height = intrinsic_height.at_least(sized.intrinsic_size.y);
sized_items.insert(index, sized);
}
@@ -259,7 +259,7 @@ impl<'a> AtomLayout<'a> {
let mut response = ui.interact(rect, id, sense);
response.intrinsic_size =
Some((Vec2::new(preferred_width, preferred_height) + margin.sum()).at_least(min_size));
Some((Vec2::new(intrinsic_width, intrinsic_height) + margin.sum()).at_least(min_size));
AllocatedAtomLayout {
sized_atoms: sized_items,