RangePicker.h

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//# Copyright (C) 2005
//# 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
//#                        520 Edgemont Road
//#                        Charlottesville, VA 22903-2475 USA
//#
#ifndef RANGEPICKER_H_
#define RANGEPICKER_H_

#include <qwt_plot_marker.h>

class QPainter;

namespace casa {

class HeightSource;

class RangePicker : public QwtPlotMarker {
public:
        RangePicker();
        virtual void draw (QPainter* p, const QwtScaleMap &xMap, const QwtScaleMap
                        &yMap, const QRect &) const;
        void setHeightSource( HeightSource* heightSource );
        void boundaryLineMoved( const QPoint& pos );
        int getLowerBound() const;
        int getUpperBound() const;
        void setBoundaryValues( int minX, int maxX );
        void setLineMode( bool lineMode );
        void reset();
        virtual ~RangePicker();
private:
        void _drawBoundary( QPainter* painter, int rectHeight ) const;
        RangePicker( const RangePicker& );
        RangePicker& operator=( const RangePicker& );
        HeightSource* heightSource;
        int lowerBound;
        int upperBound;
        bool rangeSet;
        bool lineMode;

};


} /* namespace casa */
#endif /* RANGEPICKER_H_ */