flightgear/utils/fgqcanvas/canvastreemodel.h
2022-10-20 20:29:11 +08:00

57 lines
1.9 KiB
C++

//
// Copyright (C) 2017 James Turner zakalawe@mac.com
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#ifndef CANVASTREEMODEL_H
#define CANVASTREEMODEL_H
#include <QAbstractItemModel>
#include "fgcanvasgroup.h"
class CanvasTreeModel : public QAbstractItemModel
{
public:
CanvasTreeModel(FGCanvasGroup* root);
FGCanvasElement* elementFromIndex(const QModelIndex& index) const;
protected:
virtual int rowCount(const QModelIndex &parent) const override;
virtual int columnCount(const QModelIndex &parent) const override;
virtual QVariant data(const QModelIndex &index, int role) const override;
virtual bool hasChildren(const QModelIndex &parent) const override;
virtual QModelIndex index(int row, int column, const QModelIndex &parent) const override;
virtual QModelIndex parent(const QModelIndex &child) const override;
virtual Qt::ItemFlags flags(const QModelIndex &index) const override;
virtual bool setData(const QModelIndex &index, const QVariant &value, int role) override;
private:
QModelIndex indexForGroup(FGCanvasGroup *group) const;
void onGroupChildAdded();
void onGroupChildRemoved(int index);
FGCanvasGroup* _root;
};
#endif // CANVASTREEMODEL_H