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feat(layers): draggable Name-column width in the Layer Manager (#359)

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A thin divider after the Name header resizes the column by drag
(60-640 px, session-persistent), riding the shared modal drag flow.
The name elide budget follows the column width, so widening the
column reveals long layer names; the hover tooltip stays for overflow.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-07-21 23:34:02 +03:00
commit 87f40e7544
4 changed files with 58 additions and 22 deletions
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13
src/app/update/mod.rs
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@ -3246,10 +3246,18 @@ impl OpenCADStudio {
self.modal_drag_last = None;
Task::none()
}
Message::LayerNameColGrab => {
// Start a Name-column divider drag; rides ModalDragMove.
self.layer_col_dragging = true;
self.modal_drag_last = None;
Task::none()
}
Message::ModalDragMove(p) => {
if let Some(last) = self.modal_drag_last {
let (dx, dy) = (p.x - last.x, p.y - last.y);
if self.modal_resizing {
if self.layer_col_dragging {
self.layer_name_col_w = (self.layer_name_col_w + dx).clamp(60.0, 640.0);
} else if self.modal_resizing {
// The grip sits bottom-right, so dragging out grows the
// box. The delta is added to each dialog's natural size,
// so clamp it at zero — dragging in past the natural size
@ -3280,7 +3288,7 @@ impl OpenCADStudio {
}
}
}
if self.modal_dragging || self.modal_resizing {
if self.modal_dragging || self.modal_resizing || self.layer_col_dragging {
self.modal_drag_last = Some(p);
}
Task::none()
@ -3288,6 +3296,7 @@ impl OpenCADStudio {
Message::ModalDragRelease => {
self.modal_dragging = false;
self.modal_resizing = false;
self.layer_col_dragging = false;
self.modal_drag_last = None;
Task::none()
}