/***************************************************************************
 *   Copyright (c) 2004 Werner Mayer <wmayer[at]users.sourceforge.net>     *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  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 Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#ifndef PROPERTYITEMDELEGATE_H
#define PROPERTYITEMDELEGATE_H

#include <QItemDelegate>
#include <QPointer>

namespace Gui {
namespace PropertyEditor {

class PropertyEditorWidget;

class PropertyItemDelegate : public QItemDelegate
{
    Q_OBJECT

public:
    explicit PropertyItemDelegate(QObject* parent);
    ~PropertyItemDelegate() override;

    void paint(QPainter *painter, const QStyleOptionViewItem &opt, const QModelIndex &index) const override;
    QWidget * createEditor (QWidget *, const QStyleOptionViewItem&, const QModelIndex&) const override;
    void setEditorData(QWidget *editor, const QModelIndex &index) const override;
    void setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex& index ) const override;
    QSize sizeHint(const QStyleOptionViewItem & option, const QModelIndex & index) const override;
    bool editorEvent (QEvent *event, QAbstractItemModel *model,
                              const QStyleOptionViewItem& option, const QModelIndex& index) override;
protected:
    bool eventFilter(QObject *, QEvent *) override;

    void valueChanged();

private:
    mutable QPointer<QWidget> propertyEditor;
    mutable QWidget *expressionEditor;
    mutable PropertyEditorWidget *userEditor = nullptr;
    mutable bool pressed;
    bool changed;
};

} // namespace PropertyEditor
} // namespace Gui

#endif // PROPERTYITEMDELEGATE_H
