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spatial hierarchy from IFC + active-model concept

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Build the spatial hierarchy panel from the loaded model's real IFC
spatial structure instead of mock data:
- helpers/element: add get_spatial_children (IsDecomposedBy -> RelatedObjects,
  filtered to spatial elements) to walk IfcProject -> IfcSite -> IfcBuilding
  -> IfcBuildingStorey -> IfcSpace.
- SessionState: relay dataSourceReady as modelDataSourceReady (the .ifc for a
  sidecar hit loads asynchronously, so the tree can only build once it arrives).
- spatial_hierarchy/View: walk the active model's IFC file into a TreeNode
  tree, naming nodes by Name (fallback to class), mapping site/building/storey
  kinds; siblings sorted with natural (numeric) collation.
- spatial_hierarchy/Panel: tree now fills the panel height (setBodyExpanding +
  Expanding size policy); right-click menu for recursive Expand/Collapse
  Subtree and Expand/Collapse All.

Add the concept of an active model:
- SessionState: activeModelId / setActiveModelId / activeModelChanged; the
  first loaded model is active by default; reassigns/clears on removal.
- Models panel: clicking a model makes it active; its cube icon is drawn with
  the accent colour (makeAccentSvgIcon) via FederationItemModel::setActiveModelId.
- The spatial hierarchy reflects only the active model.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Dion Moult
2026-07-08 16:38:42 +10:00
parent ec285fc32c
commit 60cab3e7c4
11 changed files with 221 additions and 11 deletions
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src/bonsaiviewer/modules/models/Panel.cpp
+9 -2
View File
@@ -249,8 +249,15 @@ ModelsPanel::ModelsPanel(bonsaiviewer::SessionState* session_state,
addBodyWidget(section);
connect(tree_, &QTreeView::clicked, this, [this](const QModelIndex& index) {
if (!index.isValid() || index.column() != 1) return;
commands::toggleVisibility(*session_state_, kindOf(index), idOf(index));
if (!index.isValid()) return;
if (index.column() == 1) {
commands::toggleVisibility(*session_state_, kindOf(index), idOf(index));
return;
}
// Clicking a model (its cube icon / row) makes it the active model.
if (kindOf(index) == ItemKind::Model) {
session_state_->setActiveModelId(idOf(index));
}
});
connect(tree_, &QTreeView::customContextMenuRequested, this, [this](const QPoint& pos) {