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TreeModel: Ensure that proxy models or views get notified...

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...when the root item is exchanged.

Change-Id: Ic854259902bcfdcf5ec5776ad40b56bca3820bf5
Reviewed-by: hjk <hjk@theqtcompany.com>
This commit is contained in:
Christian Stenger
2015-09-25 13:38:43 +02:00
parent e57b0db0f9
commit 133af73b2a
1 changed files with 5 additions and 0 deletions
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5
src/libs/utils/treemodel.cpp
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@@ -967,9 +967,14 @@ void TreeModel::setRootItem(TreeItem *item)
QTC_ASSERT(item->m_model == 0, return);
QTC_ASSERT(item->m_parent == 0, return);
QTC_CHECK(m_root);
emit layoutAboutToBeChanged();
if (m_root) {
QTC_CHECK(m_root->m_parent == 0);
QTC_CHECK(m_root->m_model == this);
// needs to be done explicitly before setting the model to 0, otherwise it might lead to a
// crash inside a view or proxy model, especially if there are selected items
m_root->removeChildren();
m_root->m_model = 0;
delete m_root;
}