/****************************************************************************
** Copyright (c) 2021, Fougue Ltd. <http://www.fougue.pro>
** All rights reserved.
** See license at https://github.com/fougue/mayo/blob/master/LICENSE.txt
****************************************************************************/

#pragma once

#include <QtWidgets/QStyledItemDelegate>

namespace Mayo {

// Convenience class that simplifies dynamically overriding of QStyledItemDelegate
// QStyledItemDelegate protected functions cannot be overridden through proxy technique, this is a
// limitation that applies to :
//     - QStyledItemDelegate::initStyleOption()
//     - QStyledItemDelegate::eventFilter()
//     - QStyledItemDelegate::editorEvent()
class ProxyStyledItemDelegate : public QStyledItemDelegate {
public:
    ProxyStyledItemDelegate(QObject* parent = nullptr);
    ProxyStyledItemDelegate(QStyledItemDelegate* srcDelegate, QObject* parent = nullptr);

    QStyledItemDelegate* sourceDelegate() const;
    void setSourceDelegate(QStyledItemDelegate* srcDelegate);

    void paint(
        QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index
    ) const override;

    QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const override;

    QString displayText(const QVariant& value, const QLocale& locale) const override;

    QWidget* createEditor(
        QWidget* parent,const QStyleOptionViewItem& option,const QModelIndex& index
    ) const override;

    void setEditorData(QWidget* editor, const QModelIndex& index) const override;

    void setModelData(
        QWidget* editor,QAbstractItemModel* model, const QModelIndex& index
    ) const override;

    void updateEditorGeometry(
        QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index
    ) const override;

private:
    QStyledItemDelegate* m_sourceDelegate;
};

} // namespace Mayo