GH-4164 Assign instances to groups using drag & drop

1 files changed, 35 insertions, 0 deletions

diff --git a/launcher/instanceview/InstanceProxyModel.h b/launcher/instanceview/InstanceProxyModel.h
new file mode 100644
index 00000000..bba8d2b5
--- /dev/null
+++ b/launcher/instanceview/InstanceProxyModel.h
@@ -0,0 +1,35 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QSortFilterProxyModel>
+#include <QCollator>
+
+class InstanceProxyModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+
+public:
+    InstanceProxyModel(QObject *parent = 0);
+
+protected:
+    QVariant data(const QModelIndex & index, int role) const override;
+    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
+    bool subSortLessThan(const QModelIndex &left, const QModelIndex &right) const;
+
+private:
+    QCollator m_naturalSort;
+};