/* 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 <QTreeView>

class VersionListView : public QTreeView {
    Q_OBJECT
   public:
    explicit VersionListView(QWidget* parent = 0);
    virtual void paintEvent(QPaintEvent* event) override;
    virtual void setModel(QAbstractItemModel* model) override;

    enum EmptyMode { Empty, String, ErrorString };

    void setEmptyString(QString emptyString);
    void setEmptyErrorString(QString emptyErrorString);
    void setEmptyMode(EmptyMode mode);

   public slots:
    virtual void reset() override;

   protected slots:
    virtual void rowsAboutToBeRemoved(const QModelIndex& parent, int start, int end) override;
    virtual void rowsInserted(const QModelIndex& parent, int start, int end) override;

   private: /* methods */
    void paintInfoLabel(QPaintEvent* event) const;
    void updateEmptyViewPort();
    QString currentEmptyString() const;

   private: /* variables */
    int m_itemCount = 0;
    QString m_emptyString;
    QString m_emptyErrorString;
    EmptyMode m_emptyMode = Empty;
};
