SessionItemWidget.h

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/View/Common/SessionItemWidget.h
//! @brief     Defines class ItemComboWidget
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#ifndef BORNAGAIN_GUI_VIEW_COMMON_SESSIONITEMWIDGET_H
#define BORNAGAIN_GUI_VIEW_COMMON_SESSIONITEMWIDGET_H
 
#include <QWidget>
 
class SessionItem;
class QShowEvent;
class QHideEvent;
class SessionItemController;
 
//! The SessionItemWidget class is a base for all widgets representing the content
//! of SessionItem. It provides subscribe/unsibscribe mechanism on show/hide events.
//! The main purpose is to save performance, when item keeps changing its properties, while
//! widget is hidden.
 
class SessionItemWidget : public QWidget {
    Q_OBJECT
public:
    explicit SessionItemWidget(QWidget* parent = nullptr);
    ~SessionItemWidget() override;
 
    virtual void setItem(SessionItem* item);
    virtual QList<QAction*> actionList();
 
    SessionItem* currentItem();
    const SessionItem* currentItem() const;
 
protected:
    virtual void subscribeToItem() {}
    virtual void unsubscribeFromItem() {}
    void showEvent(QShowEvent*) override;
    void hideEvent(QHideEvent*) override;
 
private:
    SessionItemController* m_itemController;
};
 
#endif // BORNAGAIN_GUI_VIEW_COMMON_SESSIONITEMWIDGET_H