xyhistorenderer.h

// Name:    xyhistorenderer.h
// Purpose: xy histogram renderer declarations
// Author:  Moskvichev Andrey V.
// Created: 2008/11/07
// Copyright:   (c) 2008-2010 Moskvichev Andrey V.
// Licence: wxWidgets licence

#ifndef XYHISTORENDERER_H_
#define XYHISTORENDERER_H_

#include <wx/xy/xyrenderer.h>
#include <wx/areadraw.h>

class WXDLLIMPEXP_FREECHART XYHistoRenderer : public XYRenderer, public DrawObserver
{
    DECLARE_CLASS(XYHistoRenderer)
public:
    XYHistoRenderer(int barWidth = 10, bool vertical = true);
    virtual ~XYHistoRenderer();

    virtual void Draw(wxDC &dc, wxRect rc, Axis *horizAxis, Axis *vertAxis, XYDataset *dataset);

    void SetBarArea(size_t serie, AreaDraw *barArea);

    AreaDraw *GetBarArea(size_t serie);

    //
    // DrawObserver
    //
    virtual void NeedRedraw(DrawObject *obj);

private:
    void DrawBar(int serie, wxDC &dc, wxRect rcData, wxCoord x, wxCoord y);

    int m_barWidth;
    bool m_vertical;

    wxCoord m_serieShift;

    AreaDrawCollection m_barAreas;
};

#endif /*XYHISTORENDERER_H_*/