1 files changed, 143 insertions, 0 deletions
diff --git a/meshmc/launcher/ui/widgets/PageContainer_p.h b/meshmc/launcher/ui/widgets/PageContainer_p.h
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+++ b/meshmc/launcher/ui/widgets/PageContainer_p.h
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+/* 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.
+ */
+
+#pragma once
+
+#include <QListView>
+#include <QStyledItemDelegate>
+#include <QEvent>
+#include <QScrollBar>
+
+class BasePage;
+const int pageIconSize = 24;
+
+class PageViewDelegate : public QStyledItemDelegate
+{
+  public:
+	PageViewDelegate(QObject* parent) : QStyledItemDelegate(parent) {}
+	QSize sizeHint(const QStyleOptionViewItem& option,
+				   const QModelIndex& index) const
+	{
+		QSize size = QStyledItemDelegate::sizeHint(option, index);
+		size.setHeight(qMax(size.height(), 32));
+		return size;
+	}
+};
+
+class PageModel : public QAbstractListModel
+{
+  public:
+	PageModel(QObject* parent = 0) : QAbstractListModel(parent)
+	{
+		QPixmap empty(pageIconSize, pageIconSize);
+		empty.fill(Qt::transparent);
+		m_emptyIcon = QIcon(empty);
+	}
+	virtual ~PageModel() {}
+
+	int rowCount(const QModelIndex& parent = QModelIndex()) const
+	{
+		return parent.isValid() ? 0 : m_pages.size();
+	}
+	QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const
+	{
+		switch (role) {
+			case Qt::DisplayRole:
+				return m_pages.at(index.row())->displayName();
+			case Qt::DecorationRole: {
+				QIcon icon = m_pages.at(index.row())->icon();
+				if (icon.isNull())
+					icon = m_emptyIcon;
+				// HACK: fixes icon stretching on windows. TODO: report Qt bug
+				// for this
+				return QIcon(icon.pixmap(QSize(48, 48)));
+			}
+		}
+		return QVariant();
+	}
+
+	void setPages(const QList<BasePage*>& pages)
+	{
+		beginResetModel();
+		m_pages = pages;
+		endResetModel();
+	}
+	const QList<BasePage*>& pages() const
+	{
+		return m_pages;
+	}
+
+	BasePage* findPageEntryById(QString id)
+	{
+		for (auto page : m_pages) {
+			if (page->id() == id)
+				return page;
+		}
+		return nullptr;
+	}
+
+	QList<BasePage*> m_pages;
+	QIcon m_emptyIcon;
+};
+
+class PageView : public QListView
+{
+  public:
+	PageView(QWidget* parent = 0) : QListView(parent)
+	{
+		setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Expanding);
+		setItemDelegate(new PageViewDelegate(this));
+		setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	}
+
+	virtual QSize sizeHint() const
+	{
+		int width = sizeHintForColumn(0) + frameWidth() * 2 + 5;
+		if (verticalScrollBar()->isVisible())
+			width += verticalScrollBar()->width();
+		return QSize(width, 100);
+	}
+
+	virtual bool eventFilter(QObject* obj, QEvent* event)
+	{
+		if (obj == verticalScrollBar() &&
+			(event->type() == QEvent::Show || event->type() == QEvent::Hide))
+			updateGeometry();
+		return QListView::eventFilter(obj, event);
+	}
+};