skypainter.h

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/*
    SkyPainter: class for painting onto the sky for KStars
    Copyright (C) 2010 Henry de Valence <hdevalence@gmail.com>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

*/

#ifndef SKYPAINTER_H
#define SKYPAINTER_H

#include <QPainter>

#include "skycomponents/typedef.h"

class TrailObject;
class KSPlanetBase;
class KSAsteroid;
class KSComet;
class DeepSkyObject;
class SkyPoint;
class SkyObject;
class SkyMap;
class SkipList;
class LineList;
class LineListLabel;
class Satellite;
class Supernova;


class SkyPainter
{
public:
    SkyPainter();

    virtual ~SkyPainter();
    
    virtual void setPen(const QPen& pen) = 0;

    virtual void setBrush(const QBrush& brush) = 0;

    //FIXME: find a better way to do this.
    void setSizeMagLimit(float sizeMagLim);

    virtual void begin() =0;

    virtual void end() =0;

    //                                //
    // SKY DRAWING FUNCTIONS:         //
    //                                //

    virtual void drawSkyBackground() = 0;

    virtual void drawSkyLine(SkyPoint* a, SkyPoint* b) =0;

    virtual void drawSkyPolyline(LineList* list, SkipList *skipList = 0,
                                 LineListLabel *label = 0) =0;
    
    virtual void drawSkyPolygon(LineList* list) =0;

    virtual bool drawPointSource(SkyPoint *loc, float mag, char sp = 'A') =0;

    virtual bool drawDeepSkyObject(DeepSkyObject *obj, bool drawImage = false) =0;

    virtual bool drawPlanet(KSPlanetBase *planet) =0;

    virtual void drawObservingList( const QList<SkyObject*>& obs ) = 0;

    virtual void drawFlags() = 0;

    virtual void drawSatellite( Satellite* sat ) = 0;

    virtual bool drawSupernova(Supernova* sup) = 0;

    virtual void drawHorizon( bool filled, SkyPoint *labelPoint = 0, bool *drawLabel = 0) = 0;

    float starWidth(float mag) const;

protected:

    SkyMap *m_sm;

private:
    float m_sizeMagLim;
};

#endif // SKYPAINTER_H