E:/Sources Misc/ChartDemo/ChartPointLabel.h

/*
 *
 *      ChartPointLabel.h
 *
 *      Written by Cédric Moonen (cedric_moonen@hotmail.com)
 *
 *
 *
 *      This code may be used for any non-commercial and commercial purposes in a compiled form.
 *      The code may be redistributed as long as it remains unmodified and providing that the 
 *      author name and this disclaimer remain intact. The sources can be modified WITH the author 
 *      consent only.
 *      
 *      This code is provided without any garanties. I cannot be held responsible for the damage or
 *      the loss of time it causes. Use it at your own risks
 *
 *      An e-mail to notify me that you are using this code is appreciated also.
 *
 *
 */

#ifndef _CHARTPOINTLABEL_H_ 
#define _CHARTPOINTLABEL_H_

#include "ChartSerie.h"

class CChartLabelProvider
{
public:
        CChartLabelProvider()  { }
        virtual ~CChartLabelProvider()  { }

        virtual TChartString GetText(CChartSerie* pSerie, unsigned uPtIndex) = 0;
};

class CChartPointLabel
{
        friend CChartSerie;

public:
        void SetLabelText(const TChartString& strText);
        void SetFont(int nPointSize, const TChartString& strFaceName);

        void SetBackgroundColor(COLORREF colBackground);
        COLORREF GetBackgroundColor() const             { return m_colBackground; }
        void SetArrowColor(COLORREF colArrow);  
        COLORREF GetArrowColor() const                  { return m_colArrow; }
        void SetBorderColor(COLORREF colBorder);
        COLORREF GetBorderColor() const                 { return m_colBorder; }

        void SetRoundedRect(bool bRounded);
        bool GetRoundedRect() const             { return m_bRoundedRect; }

        void SetLabelProvider(CChartLabelProvider* pProvider)
        {
                m_pLabelProvider = pProvider;
        }

protected:
        CChartPointLabel(CChartCtrl* pParentCtrl, CChartSerie* pParentSeries);
        ~CChartPointLabel();

        void Draw(CDC* pDC, unsigned uPointIndex);

        int m_iFontSize;
        TChartString m_strFontName;

        TChartString m_strLabelText;
        CChartLabelProvider* m_pLabelProvider;

        CChartCtrl*  m_pParentCtrl;
        CChartSerie* m_pParentSeries;

        COLORREF m_colArrow;
        COLORREF m_colBackground;
        COLORREF m_colBorder;

        bool m_bRoundedRect;
};

#endif  // _CHARTPOINTLABEL_H_

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