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oak-editor/app/project/projectviewmodel.h
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
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 <http://www.gnu.org/licenses/>.
***/
#ifndef VIEWMODEL_H
#define VIEWMODEL_H
#include <QAbstractItemModel>
#include "project.h"
/**
* @brief The ProjectViewModel class
*
* An adapter that interprets the data in a Project into a Qt item model for usage in ViewModel Views.
*/
class ProjectViewModel : public QAbstractItemModel
{
public:
enum ColumnType {
/// Media name
kName,
/// Media duration
kDuration,
/// Media rate (frame rate for video, sample rate for audio)
kRate
};
/**
* @brief ProjectViewModel Constructor
*
* @param parent
* Parent object for memory handling
*/
ProjectViewModel(QObject* parent);
/**
* @brief Get currently active project
*
* @return
*
* Currently active project or nullptr if there is none
*/
Project* project();
/**
* @brief Set the project to adapt
*
* Any views attached to this model will get updated by this function.
*
* @param p
*
* Project to adapt, can be set to nullptr to "close" the project (will show an empty model that cannot be modified)
*/
void set_project(Project* p);
/** Compulsory Qt QAbstractItemModel overrides */
virtual QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
virtual QModelIndex parent(const QModelIndex &child) const override;
virtual int rowCount(const QModelIndex &parent = QModelIndex()) const override;
virtual int columnCount(const QModelIndex &parent = QModelIndex()) const override;
virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
/** Optional Qt QAbstractItemModel overrides */
virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
virtual bool hasChildren(const QModelIndex &parent = QModelIndex()) const override;
private:
Project* project_;
QVector<ColumnType> columns_;
};
#endif // VIEWMODEL_H