From d25a81071c078585f14176283b89e1a6b0ad5795 Mon Sep 17 00:00:00 2001
From: Tannin <devnull@localhost>
Date: Wed, 10 Jun 2015 21:22:54 +0200
Subject: more generic solution to the problem fixed in changeset bb74f8eb639c,
 now also applied in another location

---
 src/modlistsortproxy.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'src/modlistsortproxy.cpp')

diff --git a/src/modlistsortproxy.cpp b/src/modlistsortproxy.cpp
index b40b4144..f646a079 100644
--- a/src/modlistsortproxy.cpp
+++ b/src/modlistsortproxy.cpp
@@ -376,3 +376,26 @@ bool ModListSortProxy::dropMimeData(const QMimeData *data, Qt::DropAction action
   return this->sourceModel()->dropMimeData(data, action, sourceIndex.row(), sourceIndex.column(),
                                            sourceIndex.parent());
 }
+
+void ModListSortProxy::setSourceModel(QAbstractItemModel *sourceModel)
+{
+  QSortFilterProxyModel::setSourceModel(sourceModel);
+
+  connect(sourceModel, SIGNAL(aboutToChangeData()), this, SLOT(aboutToChangeData()));
+  connect(sourceModel, SIGNAL(postDataChanged()), this, SLOT(postDataChanged()));
+}
+
+void ModListSortProxy::aboutToChangeData()
+{
+  // having a filter active when dataChanged is called caused a crash
+  // (at least with some Qt versions)
+  m_PreChangeFilters = categoryFilter();
+  setCategoryFilter(std::vector<int>());
+}
+
+void ModListSortProxy::postDataChanged()
+{
+  setCategoryFilter(m_PreChangeFilters);
+  m_PreChangeFilters.clear();
+}
+
-- 
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