GraphDot.h

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/*  Copyright (C) 2003-2021 Free Electron Organization
    Any use of this software requires a license.  If a valid license
    was not distributed with this file, visit freeelectron.org. */

/** @file */

#ifndef __graphviz_GraphDot_h__
#define __graphviz_GraphDot_h__
namespace fe
{
namespace ext
{

/**************************************************************************//**
    @brief Converter from DAGNode to dot format

    @ingroup graphviz
*//***************************************************************************/
class FE_DL_EXPORT GraphDot: public ImageCommon,
        public Initialize<GraphDot>
{
    public:
                        GraphDot();
virtual                 ~GraphDot();

        void            initialize(void);

                        //* As ImageI
virtual I32             interpretSelect(String a_source);

virtual BWORD           save(String filename)               { return FALSE; }
virtual void            select(I32 id)                                      {}
virtual I32             selected(void) const                { return 0; }
virtual void            unload(I32 id)                                      {}

virtual void            setFormat(ImageI::Format format)
                        {
                            if(m_spDelegate.isValid())
                            {
                                m_spDelegate->setFormat(format);
                                incrementSerial();
                            }
                        }
virtual ImageI::Format  format(void) const
                        {   return m_spDelegate.isValid()?
                                    m_spDelegate->format(): ImageI::e_none; }

virtual void            resize(U32 width,U32 height,U32 depth)
                        {
                            if(m_spDelegate.isValid())
                            {
                                m_spDelegate->resize(width,height,depth);
                            }
                            incrementSerial();
                        }
virtual void            replaceRegion(U32 x,U32 y,U32 z,
                                U32 width,U32 height,U32 depth,void* data)
                        {
                            if(m_spDelegate.isValid())
                            {
                                m_spDelegate->replaceRegion(x,y,z,
                                        width,height,depth,data);
                            }
                            incrementSerial();
                        }

virtual U32             width(void) const
                        {   return m_spDelegate.isValid()?
                                    m_spDelegate->width(): 0; }
virtual U32             height(void) const
                        {   return m_spDelegate.isValid()?
                                    m_spDelegate->height(): 0; }
virtual U32             depth(void) const
                        {   return m_spDelegate.isValid()?
                                    m_spDelegate->depth(): 0; }
virtual void*           raw(void) const
                        {   return m_spDelegate.isValid()?
                                    m_spDelegate->raw(): NULL; }

virtual U32             regionCount(void) const;
virtual String          regionName(U32 a_regionIndex) const;
virtual Box2i           regionBox(String a_regionName) const;
virtual String          pickRegion(I32 a_x,I32 a_y) const;

    private:

virtual void            render(String a_format);

        void            reset(void);

        GVC_t*          m_pGvc;
        Agraph_t*       m_pGraph;

        sp<ImageI>      m_spDelegate;

        I32             m_offsetX;
        I32             m_offsetY;
        Real            m_rescaleX;
        Real            m_rescaleY;
};

} /* namespace ext */
} /* namespace fe */

#endif /* __graphviz_GraphDot_h__ */