zgchartlib.h

一个好的工业显示程序,可以方便定制各种界面元素

	DECLARE_DYNAMIC(CZgChartTipsWnd);
// Construction
public:
	CZgChartTipsWnd();

// Attributes
public:
	CZgChartTips *mp_ChartTips;
// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CZgChartTipsWnd)
	protected:
	//}}AFX_VIRTUAL

// Implementation
public:
	BOOL CreateTipsWnd(CRect rect, CWnd *pParent);
	virtual ~CZgChartTipsWnd();

	// Generated message map functions
protected:
	CWnd *mp_Parent;
	BOOL SetTransparent(HWND hWnd, COLORREF crKey, BYTE bAlpha, DWORD dwFlags);
	HMODULE	m_hUserDll ;		//DLL
	//{{AFX_MSG(CZgChartTipsWnd)
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg void OnPaint();
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

typedef struct STRU_CUTLINE_DATA
{
	char		szCutlineName[40];		//图例名称
	COLORREF	crCutlineColor;			//图例颜色
	UINT		nLineWidth;				//曲线宽度
	CRect		rcPos;					//图例位置
	BOOL		bStatus;				//图例状态
}CutlineData;

//////////////////////////////////////////////////////////////////////////
class CZgChartCutline
{
// Construction
public:
	CZgChartCutline();

public:
	void UpdateCutlinePara(COLORREF crColor, UINT nLineWidth, int nIndex);
	BOOL GetCutlineStatusByIndex(int nIndex);
	void ReverseStatus(int nIndex);
	BOOL GetCutlineRectByIndex(CRect &rcPos, int nIndex);
	BOOL GetCutlineColorInfoByIndex(COLORREF &crColor, UINT &nLineWidth, int nIndex);
	BOOL GetCutlineInfoByIndex(CString &strName, COLORREF &crColor, int nIndex);
	void ShowChartCutline(CDC *pDC, CRect &rcDraw);
	BOOL AddChartCutline(char szName[], COLORREF crColor, UINT nLineWidth=2, BOOL bClearData=FALSE);
	void EmptyData();
	virtual ~CZgChartCutline();

protected:
	void DrawCutline(CDC *pDC, CRect &rcDraw, CutlineData *pData);
	void DrawAllCutline(CDC *pDC, CRect &rcClient);
	CPtrList m_CutlineList;
};


//////////////////////////////////////////////////////////////////////////
#define IDD_DIALOG_LINE_SET             101
#define IDC_COMBO_LINEWIDTH             1038
#define IDC_BUTTON_LINECOLOR            1039

class CZgChartLineSetDlg : public CDialog
{
// Construction
public:
	CZgChartLineSetDlg(CWnd* pParent = NULL);   // standard constructor

// Dialog Data
	//{{AFX_DATA(CZgChartLineSetDlg)
	enum { IDD = IDD_DIALOG_LINE_SET };
	CColourPicker	m_LineColor;
	int		mi_LineWidth;
	//}}AFX_DATA


// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CZgChartLineSetDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:

	// Generated message map functions
	//{{AFX_MSG(CZgChartLineSetDlg)
		// NOTE: the ClassWizard will add member functions here
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};


//////////////////////////////////////////////////////////////////////////
#define MAX_CURVE_COUNT	10		//最大曲线条数
typedef struct STRU_CHART_DATA
{
	int			nValueTime;		//时间点
	float		fValue;			//值
	BOOL		bValid;			//是否有效
}ChartData;


class CZgChartView : public CWnd
{
// Construction
public:
	CZgChartView();

// Attributes
public:

// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CZgChartView)
	public:
	//}}AFX_VIRTUAL

// Implementation
public:
	//设置时间间隔，可以不设置，但在获取数值会出现一些小问题
	void SetTimeSpin(int nTimeSpin);

	//保存当前曲线到指定位图文件
	BOOL SaveChartToFile(CString &strFileName);

	//打印当前曲线
	void PrintChart(CDC *pDC);

	//强制隐藏当前提示窗体
	void HideTips();

	//设置曲线标题文本
	void SetTitleText(CString &strTitle);

	//添加曲线数据信息
	BOOL AddChartData(int nIndex, int nTime, float fValue, BOOL bValid=TRUE);

	//设置纵向坐标的范围
	void SetYValue(int nMin, int nMax);

	//添加曲线类型
	BOOL AddChartCutline(char szName[], COLORREF crColor, UINT nLineWidth=2, BOOL bClearData=FALSE);
	
	//日期设置,间隔时天的倍数，最好能够被24整除
	void SetXDate(int nStart, int nStop);

	//创建曲线显示窗体
	BOOL CreateChartView(CWnd *pParentWnd, CRect &rect);
	virtual ~CZgChartView();

	// Generated message map functions
protected:
	CZgChartCutline m_ChartCutline;		//曲线图例
	CZgChartTips	m_ChartTips;		//曲线提示
	
	int mi_SpinX;			//X轴等分大小
	int mi_SpinY;			//Y轴等分大小

	int mi_MarginTop;		//曲线顶部间隔	
	int mi_MarginBottom;	//曲线底部间隔
	int mi_MarginLeft;		//曲线左边间隔
	int mi_MarginRight;		//曲线右边间隔

	int mi_SpinWidth;		//X轴宽度
	int mi_SpinHeight;		//Y轴高度

	COLORREF m_crTitleText;	//标题文本颜色
	CString m_strTitleText;	//标题文本
	UINT	mi_TitleAlign;	//标题文本对齐类型：左，中，右

	COLORREF m_crDate;		//显示提示中时间的颜色
	COLORREF m_crBackground;//曲线背景颜色
	COLORREF m_crScaleText;	//刻度文本颜色
	COLORREF m_crLinePoint;	//点线颜色

	UINT mi_TimerMove;		//定时器

	CPoint m_ptSave;		//坐标保存点

	int	mi_MinX;			//X轴最小值
	int mi_MaxX;			//X轴最大值

	int mi_MinY;			//Y轴最小值
	int mi_MaxY;			//Y轴最大值

	int mi_DayCount;		//天数

	CFont m_FontText;		//文本字体
	CFont m_FontTitle;		//标题文字字体

	CPen m_PenCoordinate;	//坐标轴
	CPen m_PenArrow;		//坐标轴箭头
	CPen m_PenSpinLine;		//坐标轴分割线
	CPen m_PenPosLine;		//鼠标在曲线中的定位线

	CRect m_rcClient;		//整个客户，在ONSIZE事件中更新
	CRect m_rcCurve;		//曲线

	int	mi_CurveCount;		//曲线条数

	BOOL mi_DrawLineSmooth;	//是否使用Bezier来平滑画线
	BOOL mi_TipsWithMouse;	//显示提示是否跟随光标
	BOOL mi_DrawLineVertical;//非Bezier来平滑画线时候是否采用直方图方式

	CPtrList m_DataList[MAX_CURVE_COUNT];		//最多十条曲线的数据保存点

	int mi_TimeSpin;		//数据时间间隔

protected:
	int mi_CurDataIndexSave;
	CZgChartTipsWnd m_ChartTipsWnd;
	BOOL SaveBitmapToFile(HBITMAP hBitmap , CString &strFileName);
	void DrawYFloatTextFromValue(CDC *pDC, CPoint ptText, float fValue);
	void DrawCutline(CDC* pDC, CRect &rcClient);
	void DrawCrossLine(CDC *pDC);
	void DrawChartTips(CDC *pDC);
	int GetDateStringByX(CString &strDate, int nChartIndex);
	void DatePointToChartPoint(CPoint &ptChart, int nTime, float fValue);
	void DrawSingleCurveSmooth(CDC *pDC, int nIndex, CRect &rcDraw);
	void DrawSingleCurveNoSmooth(CDC *pDC, int nIndex, CRect &rcDraw);
	void GetXStringByPos(CString &strText);
	float GetYValueByPos();
	void DrawFloatTextFromValue(CDC *pDC, CPoint ptText, float fValue);
	void DrawDateTextFromValue(CDC *pDC, CPoint ptText, int nValue);
	void DrawFloatTextFromValue(CDC *pDC, CPoint ptText, int nValue);
	void DrawChartTitle(CDC *pDC, CRect &rcDraw, BOOL bPrint=FALSE);
	void DrawCurve(CDC *pDC, CRect &rcDraw);
	void DrawCoordinate(CDC *pDC, CRect &rcDraw);
	//{{AFX_MSG(CZgChartView)
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg void OnPaint();
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	afx_msg void OnRButtonUp(UINT nFlags, CPoint point);
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

#endif