qocccmdcircle2pt.cpp

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/************************************************************************************
**
** This file is part of the QtOPENCASCADE Toolkit.
**
** Copyright (C) 2006, 2007, 2008 QtOCC Team Members
**               Peter Dolbey, Marc Britten, Stephane Routelous
**               Stefan Boeykens, Pawel Dobrolowski, Walter Steffe
**               Álvaro Castro Castilla, Dirk Burski, Fotis Sioutis
**
** 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
**
***********************************************************************************/

/*!
\class  QoccCircle2ptDlg
\brief  This class provides the keyboard entry for the circle-centre command
\author Peter C. Dolbey
*/
#include <QtGui/QAction>
#include <QtGui/QMouseEvent>

#include <qnamespace.h>
#include "qocc3dwidget.h"
#include "commands/qocccmdcircle2pt.h"
#include "qoccinternal.h"

QoccDlgCircle2Pt::QoccDlgCircle2Pt( )
{

}

QoccDlgCircle2Pt::~QoccDlgCircle2Pt( )
{
}

/*!
\class  QoccCmdCircle2Pt
\brief  This class provides the interactive entry for the circle centre-radius command
\author Peter C. Dolbey
*/

QoccCmdCircle2Pt::QoccCmdCircle2Pt( QAction* startingAction, QWidget* parent )
:QoccCommand( startingAction, parent )
{
        myParameter = Centre;
        myDocument = NULL;
        if ( myAction )
        {
                myAction->setDisabled(true);
        }
}

QoccCmdCircle2Pt::~QoccCmdCircle2Pt( )
{
        // Clean up on Cancel
        // The order of removes is important
        if (!myCentre.IsNull())
        {
                myDocument->RemovePresentation( myCentre );
                myCentre.Nullify();
        }

        if (!myCircle.IsNull())
        {
                myDocument->RemovePresentation( myCircle );
                myCircle.Nullify();
        }

        if ( myAction )
        {
                myAction->setDisabled(false);
        }
}

void QoccCmdCircle2Pt::clickEvent( Qocc3dWidget* widget, QMouseEvent* e )
{
        Q_UNUSED(e)
        QoccController* vc = widget->getController();
        QoccDocument* doc = vc->getDocument();
        TopAbs_ShapeEnum lc;
        int doc_id = doc->id();
        double x = widget->x();
        double y = widget->y();
        double z = widget->z();
        gp_Dir dir = widget->getDirection();

        switch (myParameter)
        {
                case Centre:
                        myDocument = doc;
                        myStartPoint = gp_Pnt(x, y, z);
                        myVector = qGeomApp->basicOps( doc_id )->MakeVectorDXDYDZ( dir.X(), dir.Y(), dir.Z() );
                        myCentre = qGeomApp->basicOps( doc_id )->MakePointXYZ( x, y, z );
                        doc->RegisterPresentation( myCentre );
                        myIsDrawing = true;
                        myParameter = Radius;
                        break;

                case Radius:
                        if (!myCircle.IsNull())
                        {
                                doc->RemovePresentation( myCircle );
                                myCircle.Nullify();
                        }
                        myCurrentPoint = gp_Pnt (x, y, z);
                        myRadius = myStartPoint.Distance( myCurrentPoint );

                        bool hasLc = vc->hasLocalContext();
                        if (hasLc) 
                        {
                                lc = vc->localContext();
                                vc->clearLocalContext();
                        }
                        if (myRadius > 0. )
                        {
                                qGeomApp->curvesOps( doc_id )->StartOperation();
                                Handle(GEOM_Object) theCircle = qGeomApp->curvesOps( doc_id )->MakeCirclePntVecR(myCentre, myVector, myRadius);
                                doc->RegisterPresentation( theCircle );
                                qGeomApp->curvesOps( doc_id )->FinishOperation();
                        }

                        if (hasLc) 
                        {
                                vc->setLocalContext(lc);
                                vc->update();
                        }

                        doc->RemovePresentation( myCentre );
                        myCentre.Nullify();

                        myIsDrawing = false;
                        myParameter = Centre;
                        break;
        }
}

void QoccCmdCircle2Pt::moveEvent( Qocc3dWidget* widget, QMouseEvent* e )
{
        Q_UNUSED(e)
        QoccDocument* doc = widget->getController()->getDocument();
        int doc_id = doc->id();
        double x = widget->x();
        double y = widget->y();
        double z = widget->z();

        switch (myParameter)
        {
                case Centre:
                        break;

                case Radius:
                        if (!myCircle.IsNull())
                        {
                                doc->RemovePresentation( myCircle );
                                myCircle.Nullify();
                        }
                        myCurrentPoint = gp_Pnt (x, y, z);
                        myRadius = myStartPoint.Distance( myCurrentPoint );
                        if (myRadius > 0.)
                        {
                                myCircle = qGeomApp->curvesOps( doc_id )->MakeCirclePntVecR(myCentre, myVector, myRadius);
                                doc->RegisterPresentation( myCircle );
                        }
                        break;
        }
}

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