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project panel: Add indent guides for sticky items (#34092)

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- Adds new trait `StickyItemsDecoration` in `sticky_items` which is
implemented by `IndentGuides` from `indent_guides`.

<img width="347" alt="image"
src="https://github.com/user-attachments/assets/577748bc-13f6-41b8-9266-6a0b72349a18"
/>

Release Notes:

- N/A
This commit is contained in:
Smit Barmase 2025-07-09 05:28:25 +05:30 • committed by GitHub
parent ad8b823555
commit 3a247ee947
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6 changed files with 580 additions and 400 deletions
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89
crates/outline_panel/src/outline_panel.rs
View file

@ -4584,53 +4584,52 @@ impl OutlinePanel {
.track_scroll(self.scroll_handle.clone())
.when(show_indent_guides, |list| {
list.with_decoration(
ui::indent_guides(
cx.entity().clone(),
px(indent_size),
IndentGuideColors::panel(cx),
|outline_panel, range, _, _| {
let entries = outline_panel.cached_entries.get(range);
if let Some(entries) = entries {
entries.into_iter().map(|item| item.depth).collect()
} else {
smallvec::SmallVec::new()
}
},
)
.with_render_fn(
cx.entity().clone(),
move |outline_panel, params, _, _| {
const LEFT_OFFSET: Pixels = px(14.);
ui::indent_guides(px(indent_size), IndentGuideColors::panel(cx))
.with_compute_indents_fn(
cx.entity().clone(),
|outline_panel, range, _, _| {
let entries = outline_panel.cached_entries.get(range);
if let Some(entries) = entries {
entries.into_iter().map(|item| item.depth).collect()
} else {
smallvec::SmallVec::new()
}
},
)
.with_render_fn(
cx.entity().clone(),
move |outline_panel, params, _, _| {
const LEFT_OFFSET: Pixels = px(14.);
let indent_size = params.indent_size;
let item_height = params.item_height;
let active_indent_guide_ix = find_active_indent_guide_ix(
outline_panel,
&params.indent_guides,
);
let indent_size = params.indent_size;
let item_height = params.item_height;
let active_indent_guide_ix = find_active_indent_guide_ix(
outline_panel,
&params.indent_guides,
);
params
.indent_guides
.into_iter()
.enumerate()
.map(|(ix, layout)| {
let bounds = Bounds::new(
point(
layout.offset.x * indent_size + LEFT_OFFSET,
layout.offset.y * item_height,
),
size(px(1.), layout.length * item_height),
);
ui::RenderedIndentGuide {
bounds,
layout,
is_active: active_indent_guide_ix == Some(ix),
hitbox: None,
}
})
.collect()
},
),
params
.indent_guides
.into_iter()
.enumerate()
.map(|(ix, layout)| {
let bounds = Bounds::new(
point(
layout.offset.x * indent_size + LEFT_OFFSET,
layout.offset.y * item_height,
),
size(px(1.), layout.length * item_height),
);
ui::RenderedIndentGuide {
bounds,
layout,
is_active: active_indent_guide_ix == Some(ix),
hitbox: None,
}
})
.collect()
},
),
)
})
};