Add 'meshmc/' from commit 'fad6a1066616b69d7f5fef01178efdf014c59537'

git-subtree-dir: meshmc
git-subtree-mainline: 934382c8a1ce738589dee9ee0f14e1cec812770e
git-subtree-split: fad6a1066616b69d7f5fef01178efdf014c59537

1 files changed, 100 insertions, 0 deletions

diff --git a/meshmc/launcher/ui/instanceview/InstanceProxyModel.cpp b/meshmc/launcher/ui/instanceview/InstanceProxyModel.cpp
new file mode 100644
index 0000000000..93de0231a1
--- /dev/null
+++ b/meshmc/launcher/ui/instanceview/InstanceProxyModel.cpp
@@ -0,0 +1,100 @@
+/* SPDX-FileCopyrightText: 2026 Project Tick
+ * SPDX-FileContributor: Project Tick
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   MeshMC - A Custom Launcher for Minecraft
+ *   Copyright (C) 2026 Project Tick
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ *  This file incorporates work covered by the following copyright and
+ *  permission notice:
+ *
+ * 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.
+ */
+
+#include "InstanceProxyModel.h"
+
+#include "InstanceView.h"
+#include "Application.h"
+#include <BaseInstance.h>
+#include <icons/IconList.h>
+
+#include <QDebug>
+
+InstanceProxyModel::InstanceProxyModel(QObject* parent)
+	: QSortFilterProxyModel(parent)
+{
+	m_naturalSort.setNumericMode(true);
+	m_naturalSort.setCaseSensitivity(Qt::CaseSensitivity::CaseInsensitive);
+	// FIXME: use loaded translation as source of locale instead, hook this up
+	// to translation changes
+	m_naturalSort.setLocale(QLocale::system());
+}
+
+QVariant InstanceProxyModel::data(const QModelIndex& index, int role) const
+{
+	QVariant data = QSortFilterProxyModel::data(index, role);
+	if (role == Qt::DecorationRole) {
+		return QVariant(APPLICATION->icons()->getIcon(data.toString()));
+	}
+	return data;
+}
+
+bool InstanceProxyModel::lessThan(const QModelIndex& left,
+								  const QModelIndex& right) const
+{
+	const QString leftCategory =
+		left.data(InstanceViewRoles::GroupRole).toString();
+	const QString rightCategory =
+		right.data(InstanceViewRoles::GroupRole).toString();
+	if (leftCategory == rightCategory) {
+		return subSortLessThan(left, right);
+	} else {
+		// FIXME: real group sorting happens in
+		// InstanceView::updateGeometries(), see LocaleString
+		auto result = leftCategory.localeAwareCompare(rightCategory);
+		if (result == 0) {
+			return subSortLessThan(left, right);
+		}
+		return result < 0;
+	}
+}
+
+bool InstanceProxyModel::subSortLessThan(const QModelIndex& left,
+										 const QModelIndex& right) const
+{
+	BaseInstance* pdataLeft =
+		static_cast<BaseInstance*>(left.internalPointer());
+	BaseInstance* pdataRight =
+		static_cast<BaseInstance*>(right.internalPointer());
+	QString sortMode = APPLICATION->settings()->get("InstSortMode").toString();
+	if (sortMode == "LastLaunch") {
+		return pdataLeft->lastLaunch() > pdataRight->lastLaunch();
+	} else {
+		return m_naturalSort.compare(pdataLeft->name(), pdataRight->name()) < 0;
+	}
+}