casa6

//# Plot.h: Plot objects to be drawn on a canvas.

//# Copyright (C) 2008

//# 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

//#

//# $Id: $

#ifndef PLOT_H_

#define PLOT_H_

​

#include <graphics/GenericPlotter/PlotData.h>

#include <graphics/GenericPlotter/PlotItem.h>

​

#include <casacore/casa/BasicSL/String.h>

​

namespace casa {

​

// A Plot basically consists of data and customization information.  The data

// is held by the base class whereas any customization should be handled in

// subclasses.

class Plot : public virtual PlotItem {

public:

    Plot() { }

​

    virtual ~Plot() { }

    // ABSTRACT METHODS //

    // Returns the data associated with this plot.

    virtual PlotDataPtr data() const = 0;

    // Should be called whenever the underlying PlotData has changed, to let

    // the plot and its attached canvas know that the plot needs to be redrawn.

    virtual void dataChanged() = 0;

    // It's likely that any plot subclass (scatter, bar, function, etc.) will

    // have lines of some sort, so it's safe to have in the base class.

    // Returns true if this plot has lines shown, false otherwise.

    virtual bool linesShown() const = 0;

    // Sets whether or not lines are shown.  If linesShown is true, the

    // implementation can decide whether to choose the line style shown, or