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fix(imex): clear stale ghost-hover head when ghosts disappear mid-hover

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_picking_pass_imex_ghosts is what resets m_hover_ghost_head, but _picking_pass
early-returns (mouse drag, mouse off-canvas, gizmo drag) skip that reset. If
the user switches from an IMEX printer to a non-IMEX one during such a window
the plate clears its ghost volumes while the stale head index survives,
producing an orphan tooltip anchored to nothing.

Validate the hover state against live ghost volumes before rendering the
tooltip and self-heal the indices when they no longer point at anything.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Clifford Garwood
2026-04-21 22:52:03 -04:00
co-authored by Claude Opus 4.7
parent 9a87b96ded
commit 9d75ea2ebc
1 changed files with 13 additions and 0 deletions
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src/slic3r/GUI/GLCanvas3D.cpp
+13
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@@ -7421,6 +7421,19 @@ void GLCanvas3D::_render_imex_ghost_tooltip()
if (m_hover_ghost_head < 0)
return;
// Hover state can outlive the ghosts that produced it: _picking_pass_imex_ghosts
// only resets m_hover_ghost_head when it runs, and _picking_pass early-returns
// (mouse drag, mouse off-canvas, gizmo drag) skip that reset. If the user switches
// from an IMEX printer to a non-IMEX one during such a window, the plate clears its
// ghost volumes but the stale head index survives — producing an orphan tooltip.
// Validate against live ghosts and self-heal before rendering.
const PartPlate* plate = wxGetApp().plater()->get_partplate_list().get_plate(m_hover_ghost_plate);
if (!plate || plate->get_imex_ghost_volumes().empty()) {
m_hover_ghost_head = -1;
m_hover_ghost_plate = -1;
return;
}
const auto t = wxGetApp().plater()->format_imex_ghost_tooltip(m_hover_ghost_head);
ImGuiWrapper& imgui = *wxGetApp().imgui();