DSScreenArrow.h

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//# DSScreenArrow.h : Implementation of a relative screen pos DSArrow
//# Copyright (C) 1998,1999,2000,2001,2002
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 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 Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//#        Internet email: aips2-request@nrao.edu.
//#        Postal address: AIPS++ Project Office
//#                        National Radio Astronomy Observatory
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//#                        Charlottesville, VA 22903-2475 USA
//#
//# $Id:

#ifndef TRIALDISPLAY_DSSCREENARROW_H
#define TRIALDISPLAY_DSSCREENARROW_H

#include <casa/aips.h>
#include <casa/Arrays/Vector.h>
#include <casa/Arrays/Matrix.h>

#include <casa/Quanta/Quantum.h>
#include <casa/Quanta/QuantumHolder.h>
#include <display/Display/PanelDisplay.h>

#include <display/DisplayShapes/DSArrow.h>
#include <display/DisplayShapes/DisplayShapeWithCoords.h>

namespace casa { //# NAMESPACE CASA - BEGIN

// <summary>
// Implementation of a relative screen pos DSArrow
// </summary>

        class PixelCanvas;
        class DSPixelArrow;
        class DSWorldArrow;

        class DSScreenArrow : public DSArrow , public DisplayShapeWithCoords {

        public:

                DSScreenArrow();
                DSScreenArrow(const casacore::Record& settings, PixelCanvas* pc);
                DSScreenArrow(DSPixelArrow& other, PixelCanvas* pc);
                DSScreenArrow(DSWorldArrow& other);

                virtual ~DSScreenArrow();

                virtual void recalculateScreenPosition();

                // So we can update our Screen pos (relative)
                // <group>
                virtual void move(const casacore::Float& dX, const casacore::Float& dY);
                virtual void setCenter(const casacore::Float& xPos, const casacore::Float& yPos);
                virtual void rotate(const casacore::Float& angle);
                virtual void scale(const casacore::Float& scaleFactor);
                virtual void setStartPoint(const casacore::Vector<casacore::Float>& startPoint);
                virtual void setEndPoint(const casacore::Vector<casacore::Float>& endPoint);
                virtual void changePoint(const casacore::Vector<casacore::Float>&pos, const casacore::Int n);
                virtual void changePoint(const casacore::Vector<casacore::Float>& pos);
                // </group>

                virtual casacore::Bool setOptions(const casacore::Record& settings);
                virtual casacore::Record getOptions();

                virtual casacore::Record getRawOptions() {
                        return DSArrow::getOptions();
                }

        private:

                // The pixelcanvas we are using
                PixelCanvas* itsPC;

                // The center of the marker in world co-ords.
                casacore::Vector<casacore::Float> itsRelativeStart;
                casacore::Vector<casacore::Float> itsRelativeEnd;

                void updateRelative();
        };

} //# NAMESPACE CASA - END

#endif