QPExporter.h

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//# 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
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#ifndef QPEXPORTER_H_
#define QPEXPORTER_H_

#include <graphics/GenericPlotter/PlotOptions.h>
#include <graphics/GenericPlotter/PlotCanvas.h>
#include <QImage>

namespace casa {

class PlotCanvas;
class QPExportCanvas;
class QPPlotter;
class QPExporter {
public:


        // Exports the given canvas to the given format.
        static bool exportCanvas(PlotCanvas* canvas, const PlotExportFormat& format);

        // Exports the given plotter to the given format.
        static bool exportPlotter(QPPlotter* plotter, const PlotExportFormat& format);

        // Exports a collection of canvases to the given format.
        static bool exportCanvases(std::vector<QPExportCanvas*>& canvases,
                        const PlotExportFormat& format, PlotCanvas* grabCanvas,
                        QPPlotter* grabPlotter);

        virtual ~QPExporter();

private:
        QPExporter();
        static bool exportPostscript( const PlotExportFormat& format,
                        std::vector<QPExportCanvas*> &qcanvases,
                        QPExportCanvas* grabCanvas, QPPlotter* grabPlotter);

        static QImage produceHighResImage(
                        const PlotExportFormat& format,
                        std::vector<QPExportCanvas*> &qcanvases,
                        int width, int height,
                        int rowIndex, int columnIndex,
                        bool &wasCanceled);

        static QImage produceScreenImage(
                        const PlotExportFormat& format,
                        std::vector<QPExportCanvas*> &qcanvases,
                        int width, int height,
                        int rowCount, int colCount,
                        bool &wasCanceled);

        static bool  exportToImageFile(
                        const PlotExportFormat& format,
                        std::vector<QPExportCanvas*> &qcanvases,
                        QPExportCanvas* grabCanvas,
                        QPPlotter* grabPlotter);

        static int findAxisHeight( std::vector<QPExportCanvas*> &qcanvases );
        static int findAxisWidth( std::vector<QPExportCanvas*> &qcanvases );
        static int getCanvasCount( std::vector<QPExportCanvas*> &qcanvases );
    static void getAxesCount(std::vector<QPExportCanvas*> &qcanvases,
            casacore::Int& externalX, casacore::Int& externalY);
        static void findGridProperties( QPExportCanvas* grabCanvas, QPPlotter* grabPlotter,
                        casacore::Int& width, casacore::Int& height, casacore::Int& gridRows, casacore::Int& gridCols);
    static void findXAxisLocations(casacore::Int numX, casacore::Bool vertical, casacore::Bool& top, casacore::Bool& bottom);
    static void findYAxisLocations(casacore::Int numY, casacore::Bool vertical, casacore::Bool& left, casacore::Bool& right);
    static void findYAxisSecondRow(casacore::Int numY, casacore::Bool isLeftAxis, casacore::Bool& left, casacore::Bool& right);
    static void findYAxisSecondRow(casacore::Int numY, casacore::Int nCols, std::vector<QPExportCanvas*> &qcanvases,
            casacore::Bool& left, casacore::Bool& right);

        static const casacore::String CLASS_NAME;
        static const casacore::String EXPORT_NAME;
};

} /* namespace casa */
#endif /* QPEXPORTER_H_ */