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// Created on: 2017-06-16
// Created by: Natalia ERMOLAEVA
// Copyright (c) 2017 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef DFBrowser_TreeLevelView_H
#define DFBrowser_TreeLevelView_H
#include <inspector/TreeModel_ItemBase.hxx>
#include <Standard.hxx>
#include <Standard_WarningsDisable.hxx>
#include <QObject>
#include <QItemSelection>
#include <Standard_WarningsRestore.hxx>
class QWidget;
class QTableView;
//! \class DFBrowser_TreeLevelView
//! This is a control to visualize the current selected item of OCAF tree view in table view.
//! The table contains two columns: name and value. The information is similar the one OCAF tree
//! view label content: children and attributes for the current label. Selection or double click of
//! item emits signals about this event.
class DFBrowser_TreeLevelView : public QObject
{
Q_OBJECT
public:
//! Constructor
Standard_EXPORT DFBrowser_TreeLevelView(QWidget* theParent);
//! Destructor
virtual ~DFBrowser_TreeLevelView() {}
//! Returns parent control
QWidget* GetControl() const { return myMainWindow; }
//! Clears selection of the table view selection model
Standard_EXPORT void ClearSelection();
//! Returns true if this control may be filled by the index
//! It is possible if an item of the index is application, document or label
//! \param theIndex OCAF tree view model index
//! \return boolean result
Standard_EXPORT static bool ProcessItem(const QModelIndex& theIndex);
//! Inits view by the first selected item in OCAF tree view
//! \param theSelected selected items
//! \param theDeselected deselected items
Standard_EXPORT void UpdateByTreeSelectionChanged(const QItemSelection& theSelected,
const QItemSelection& theDeselected);
signals:
//! Signal about selection of an item in tree view
//! \param theIndex a tree view model index of selected item
void indexSelected(const QModelIndex& theIndex);
//! Signal about double click on an item in tree view
//! \param theIndex a tree view model index of selected item
void indexDoubleClicked(const QModelIndex& theIndex);
private slots:
//! Listens table view selection model. Gets the first selected tree view model index and emit
//! indexSelected signal. \param theSelected a list of selected items \param theDeselected a list
//! of deselected items
void onTableSelectionChanged(const QItemSelection& theSelected,
const QItemSelection& theDeselected);
//! Listens table view double click. Gets clicked index and emit indexDoubleClicked signal.
//! \param theIndex a tree view model index of selected item
void onTableDoubleClicked(const QModelIndex& theIndex);
private:
QWidget* myMainWindow; //!< parent control
QTableView* myTableView; //!< current view
};
#endif
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