geom/src/MeasureGUI/MeasureGUI_AnnotationInteractor.h

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// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// GEOM GEOMGUI : GUI for Geometry component
// File : MeasureGUI_AnnotationInteractor.h
// Author : Anton POLETAEV, Open CASCADE S.A.S.
//
#ifndef MEASUREGUI_ANNOTATIONINTERACTOR_H
#define MEASUREGUI_ANNOTATIONINTERACTOR_H
#include <GEOM_Annotation.hxx>
#include <SelectMgr_EntityOwner.hxx>
#include <SelectMgr_SequenceOfOwner.hxx>
#include <QObject>
#include <QPoint>
class GeometryGUI;
class OCCViewer_Viewer;
class OCCViewer_ViewManager;
class OCCViewer_ViewPort3d;
class SUIT_ViewWindow;
/*!
* \class MeasureGUI_AnnotationInteractor
* \brief Class implementing logical layer for interactive dragging of annotation
* labels. It includes two components: listener for GUI events occurring
* inside of OCCT 3D viewer and processor for hooked events to perform
* interactive modification of the selected annotation within current
* AIS context.
*/
class MeasureGUI_AnnotationInteractor : public QObject
{
Q_OBJECT
public:
//! Constructor.
//! Connects to existing viewer/view windows to process events.
//! \param theGUI [in] the geometry module's GUI interface.
//! \param theOwner [in] the owner of the instance.
MeasureGUI_AnnotationInteractor( GeometryGUI* theGUI, QObject* theOwner );
//! Destructor.
virtual ~MeasureGUI_AnnotationInteractor();
public:
//! Enables event processing and interaction handlers.
void Enable();
//! Disables event processing and interaction handlers.
void Disable();
//! Set entry of allowed annotation presentations.
void SetEditEntry( const QString& theEntry ) { myEditEntry = theEntry; }
protected:
//! Connect interactor's event handler to the view window given.
void ConnectView( SUIT_ViewWindow* theWindow );
//! Disconnect interactor's event handler from the view window given.
void DisconnectView( SUIT_ViewWindow* theWindow );
signals:
//! Emitted when interactor begins modification of the interactive object.
void SignalInteractionStarted( Handle_GEOM_Annotation theIO );
//! Emitted when interactor finished modification of the interactive object.
void SignalInteractionFinished( Handle_GEOM_Annotation theIO );
protected slots:
//! Handler for signal coming from GUI layer.
void OnViewCreated( SUIT_ViewWindow* );
//! Handler for signal coming from GUI layer.
void OnViewRemoved( SUIT_ViewWindow* );
protected:
//! Hooks and process events from OCCT viewer prior to their coming into the base viewer class.
//! It handles the events coming to viewport and identifies whether the events can
//! invoke an interaction operation or not. If yes, the operation is performed within the
//! interactor class and events are "accepted". Otherwise, the events are passed to
//! viewer's subroutines.
virtual bool eventFilter( QObject*, QEvent* );
private:
GeometryGUI* myGeomGUI;
bool myIsEnabled;
OCCViewer_ViewManager* myVM;
OCCViewer_Viewer* myViewer;
OCCViewer_ViewPort3d* myActiveViewPort;
Handle(GEOM_Annotation) myActiveIO;
SelectMgr_SequenceOfOwner mySelection;
QPoint myStartPoint;
QString myEditEntry;
};
#endif