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Add drag-to-open for collapsible panels (#8363)

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A fully collapsed `show_collapsible` panel now leaves a thin grab handle
at its fixed edge, invisible until hovered. Dragging it out past
`min_size` (or double-clicking it) reopens the panel. Opt out with
`panel.drag_to_open(false)`.

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Emil Ernerfeldt
2026-08-04 02:20:25 -07:00
committed by GitHub
parent 98eab50577
commit 622bbbeccc
8 changed files with 520 additions and 71 deletions
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4
crates/egui_demo_lib/src/demo/panels.rs
View File

@@ -94,10 +94,10 @@ impl crate::View for Panels {
bottom,
egui::Panel::bottom("bottom_panel_collapsed")
.resizable(true)
.default_size(20.0),
.exact_size(20.0),
egui::Panel::bottom("bottom_panel_expanded")
.resizable(true)
.max_size(128.0),
.size_range(64.0..=128.0),
|ui, expanded| {
if expanded {
ui.vertical_centered(|ui| {