Make filtering useful

Add a custom QSortFilterProxyModel which filterAcceptsRow() returns true
if the uppermost parent matches the filter RegExp.

1 files changed, 20 insertions, 0 deletions

diff --git a/collectionwidgetproxy.cpp b/collectionwidgetproxy.cpp
new file mode 100644
index 0000000..b3427b2
--- /dev/null
+++ b/collectionwidgetproxy.cpp
@@ -0,0 +1,20 @@
+#include <QStandardItemModel>
+
+#include "collectionwidgetproxy.h"
+
+CollectionWidgetProxy::CollectionWidgetProxy(QObject *parent) : QSortFilterProxyModel(parent) {
+}
+
+bool CollectionWidgetProxy::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const {
+    const QStandardItemModel *srcM = qobject_cast<const QStandardItemModel*>(sourceModel());
+    QModelIndex rootIdx = srcM->invisibleRootItem()->index();
+    QModelIndex curIdx = srcM->index(source_row, 0, source_parent);
+    if(curIdx == rootIdx){
+        return true;
+    }
+    while(curIdx.parent() != rootIdx){
+        curIdx = curIdx.parent();
+    }
+    QString cur = curIdx.data().toString();
+    return cur.contains(filterRegExp());
+}