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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 ShapeView_VisibilityState_H
#define ShapeView_VisibilityState_H
#include <inspector/TreeModel_VisibilityState.hxx>
#include <inspector/View_Displayer.hxx>
#include <Standard.hxx>
#include <Standard_Macro.hxx>
#include <TopoDS_Shape.hxx>
class TreeModel_ModelBase;
//! \class ShapeView_VisibilityState
//! \brief Class provides connection between model and visualization control
class ShapeView_VisibilityState : public QObject, public TreeModel_VisibilityState
{
Q_OBJECT
public:
//! Constructor
ShapeView_VisibilityState(TreeModel_ModelBase* theModel)
: TreeModel_VisibilityState(theModel),
myPresentationType(View_PresentationType_Main)
{
}
//! Destructor
~ShapeView_VisibilityState() {}
//! Sets current displayer
//! \theDisplayer class that provides connection to visualized objects
void SetDisplayer(View_Displayer* theDisplayer) { myDisplayer = theDisplayer; }
//! Sets presentation type for displayer
//! \param theType type value
void SetPresentationType(const View_PresentationType theType) { myPresentationType = theType; }
//! Returns true if visibility of the item can be changed
//! \param theIndex tree model index
//! \return boolean value
virtual bool CanBeVisible(const QModelIndex& theIndex) const Standard_OVERRIDE
{
return !Shape(theIndex).IsNull();
}
//! Sets visibility state
//! \theIndex tree model index
//! \param theState visibility state
//! \param toEmitDataChanged boolean flag whether emit of the model should be done immediately
//! \return true if state is changed
Standard_EXPORT virtual bool SetVisible(const QModelIndex& theIndex,
const bool theState,
const bool toEmitDataChanged) Standard_OVERRIDE;
//! Returns visibility state value
virtual bool IsVisible(const QModelIndex& theIndex) const Standard_OVERRIDE
{
return myDisplayer->IsVisible(Shape(theIndex), myPresentationType);
}
public slots:
//! Processes the mouse clicked on the index.
//! It changes the item visibility if model allows to change it.
//! \theIndex tree model index
void OnClicked(const QModelIndex& theIndex);
signals:
//! Signal after OnClicked is performed
//! \theIndex tree model index
void itemClicked(const QModelIndex& theIndex);
protected:
//! Gets shape of the view model by the parameter index if it has a shape
//! \param theIndex tree model index
//! \return shape instance
TopoDS_Shape Shape(const QModelIndex& theIndex) const;
private:
View_Displayer* myDisplayer; //!< view displayer
View_PresentationType myPresentationType; //!< presentation type
};
#endif
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