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Fix GTK crash when multiple libraries are expanded 

Once more into the gtk_tree_view breach.

This may also be related to https://gitlab.com/kicad/code/kicad/-/issues/7344

Fixes https://gitlab.com/kicad/code/kicad/issues/7422
This commit is contained in:
Seth Hillbrand 2021-02-04 13:18:36 -08:00
parent e5ea94c90b
commit 4657ca5d4f
1 changed files with 6 additions and 2 deletions
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8
common/lib_tree_model_adapter.cpp
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@ -199,14 +199,18 @@ void LIB_TREE_MODEL_ADAPTER::UpdateSearchString( wxString const& aSearch, bool a
// This collapse is required before the call to "Freeze()" below. Once Freeze()
// is called, GetParent() will return nullptr. While this works for some calls, it
// segfaults when we have our first library expanded.
// segfaults when we have any expanded elements b/c the sub units in the tree don't
// have explicit references that are maintained over a search
// The tree will be expanded again below when we get our matches
//
// Also note that this cannot happen when we have deleted a symbol as GTK will also
// iterate over the tree in this case and find a symbol that has an invalid link
// and crash https://gitlab.com/kicad/code/kicad/-/issues/6910
if( !aState && !aSearch.IsNull() && m_tree.m_Children.size() )
m_widget->Collapse( wxDataViewItem( &*m_tree.m_Children[0] ) );
{
for( std::unique_ptr<LIB_TREE_NODE>& child: m_tree.m_Children )
m_widget->Collapse( wxDataViewItem( &*child ) );
}
// DO NOT REMOVE THE FREEZE/THAW. This freeze/thaw is a flag for this model adapter
// that tells it when it shouldn't trust any of the data in the model. When set, it will