// Created by Larry Leonard, Definitive Solutions, Inc.

#if !defined(MYGRAPHH__9DB68B4D_3C7C_47E2_9F72_EEDA5D2CDBB0__INCLUDED_)
#define MYGRAPHH__9DB68B4D_3C7C_47E2_9F72_EEDA5D2CDBB0__INCLUDED_
#pragma once


/////////////////////////////////////////////////////////////////////////////
// MyGraphSeries

class MyGraphSeries : public CObject
{
	friend class MyGraph;

// Construction.
public:
	MyGraphSeries(const CString& sLabel = "");
	virtual ~MyGraphSeries();

// Declared but not defined.
private:
	MyGraphSeries(const MyGraphSeries& rhs);
	MyGraphSeries& operator=(const MyGraphSeries& rhs);

// Operations.
public:
	void		SetLabel(const CString& sLabel);
	CString	GetLabel() const;
	void		SetData(int nGroup, int nValue);
	int		GetData(int nGroup) const;

// Implementation.
private:
	int		GetMaxDataValue() const;
	int		GetNonZeroElementCount() const;
	int		GetDataTotal() const;
	void		SetTipRegion(int nGroup, const CRect& rc);
	void		SetTipRegion(int nGroup, const CRgn* prgn);
	int		HitTest(const CPoint& pt) const;
	CString	GetTipText(int nGroup) const;

// Data.
private:
	CString			m_sLabel;										// Series label.
	CDWordArray		m_dwaValues;									// Values array.
	CObArray			m_oaRegions;									// Tooltip regions.
};


/////////////////////////////////////////////////////////////////////////////
// MyGraph

class MyGraph : public CStatic
{
// Enum.
public:
	enum GraphType		{ Bar, Line, Pie };

// Construction.
public:
	MyGraph(GraphType eGraphType = MyGraph::Pie);
	virtual ~MyGraph();

// Declared but not defined.
private:
	MyGraph(const MyGraph& rhs);
	MyGraph& operator=(const MyGraph& rhs);

// Operations.
public:
	void		AddSeries(MyGraphSeries& rMyGraphSeries);
	void		SetXAxisLabel(const CString& sLabel);
	void		SetYAxisLabel(const CString& sLabel);
	int		AppendGroup(const CString& sLabel);
	void		SetLegend(int nGroup, const CString& sLabel);
	void		SetGraphType(GraphType eType);
	void		SetGraphTitle(const CString& sTitle);
	int		LookupLabel(const CString& sLabel) const;

// Implementation.
private:
	void		DrawGraph(CDC& dc);
	void		DrawTitle(CDC& dc);
	void		SetupAxes(CDC& dc);
	void		DrawAxes(CDC& dc) const;
	void		DrawLegend(CDC& dc);
	void		DrawSeriesBar(CDC& dc) const;
	void		DrawSeriesLine(CDC& dc) const;
	void		DrawSeriesPie(CDC& dc) const;

	int		GetMaxLegendLabelLength(CDC& dc) const;
	int		GetMaxSeriesSize() const;
	int		GetMaxNonZeroSeriesSize() const;
	int		GetMaxDataValue() const;
	int		GetNonZeroSeriesCount() const;

	CString	GetTipText() const;

	int		OnToolHitTest(CPoint point, TOOLINFO* pTI) const;

	void		CreateTipRgn(CDC& dc, const CRect& rcPie, const CPoint& ptCenter,
					const CPoint& ptStart, const CPoint& ptEnd) const;

	CPoint	WedgeEndFromDegrees(int nDegrees, const CPoint& ptCenter,
					int nRadius) const;

	// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(MyGraph)
	protected:
	virtual void PreSubclassWindow();
	//}}AFX_VIRTUAL

// Generated message map functions
protected:
	//{{AFX_MSG(MyGraph)
	afx_msg void OnPaint();
	afx_msg void OnSize(UINT nType, int cx, int cy);
	//}}AFX_MSG
	afx_msg bool OnNeedText(UINT uiId, NMHDR* pNMHDR, LRESULT* pResult);
	DECLARE_MESSAGE_MAP()

// Data.
private:
	int				m_nXAxisWidth;
	int				m_nYAxisHeight;
	CPoint			m_ptOrigin;
	CRect				m_rcGraph;
	CRect				m_rcLegend;
	CRect				m_rcTitle;
	CString			m_sXAxisLabel;
	CString			m_sYAxisLabel;
	CString			m_sTitle;
	CDWordArray		m_dwaColors;
	CStringArray	m_saLegendLabels;
	CObList			m_olMyGraphSeries;
	GraphType		m_eGraphType;
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(MYGRAPHH__9DB68B4D_3C7C_47E2_9F72_EEDA5D2CDBB0__INCLUDED_)