www.pudn.com > CHA06.rar > WYMETERCTL.H


#if !defined(AFX_WYMETERCTL_H__15491A73_5B63_11D5_ADD3_001088AB5D33__INCLUDED_)
#define AFX_WYMETERCTL_H__15491A73_5B63_11D5_ADD3_001088AB5D33__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

// wyMeterCtl.h : Declaration of the CwyMeterCtrl ActiveX Control class.

/////////////////////////////////////////////////////////////////////////////
// CwyMeterCtrl : See wyMeterCtl.cpp for implementation.

#ifndef ROUND
#define ROUND(x) (int)((x) + 0.5 - (double)((x) < 0))
#endif
#define BOUNDARY_POINTS 48

class CwyMeterCtrl : public COleControl
{
DECLARE_DYNCREATE(CwyMeterCtrl)

// Constructor
public:
CwyMeterCtrl();

// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CwyMeterCtrl)
public:
virtual void OnDraw(CDC* pdc, const CRect&amt; rcBounds, const CRect&amt; rcInvalid);
virtual BOOL PreCreateWindow(CREATESTRUCT&amt; cs);
virtual void DoPropExchange(CPropExchange* pPX);
virtual void OnResetState();
virtual void Serialize(CArchive&amt; ar);
//}}AFX_VIRTUAL

// Implementation
protected:
void UpdateNeedle(double dValue) ;
void DrawNeedle(CDC *pDC) ;
void DrawValue(CDC *pDC) ;
void DrawMeterBackground(CDC *pDC, const CRect &amt;rect) ;

int m_nValueFontHeight ;
int m_nValueFontWidth ;

COLORREF m_colorHighlight ;
COLORREF m_colorShadow ;
CRect m_rectValue ;
CPoint m_pointBoundary[BOUNDARY_POINTS] ;
CRgn m_rgnBoundary ;
int m_nTopRadius ;
double m_dLeftAngleRad ;
double m_dRightAngleRad ;
int m_nBottomCX ;
int m_nBottomCY ;
int m_nBottomRadius ;
COLORREF m_colorWindow ;
int m_nValueBaseline ;
int m_nValueCenter ;

COLORREF m_colorButton ;
COLORREF m_colorText ;
CFont m_fontValue ;
CBitmap *m_pBitmapOldBackground ;
CBitmap m_bitmapBackground;
CDC m_dcBackground;
CRect m_rectCtrl;

~CwyMeterCtrl();

DECLARE_OLECREATE_EX(CwyMeterCtrl) // Class factory and guid
DECLARE_OLETYPELIB(CwyMeterCtrl) // GetTypeInfo
DECLARE_PROPPAGEIDS(CwyMeterCtrl) // Property page IDs
DECLARE_OLECTLTYPE(CwyMeterCtrl) // Type name and misc status

// Subclassed control support
BOOL IsSubclassedControl();
LRESULT OnOcmCommand(WPARAM wParam, LPARAM lParam);

// Message maps
//{{AFX_MSG(CwyMeterCtrl)
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnDestroy();
afx_msg void OnTimer(UINT nIDEvent);
//}}AFX_MSG
DECLARE_MESSAGE_MAP()

// Dispatch maps
//{{AFX_DISPATCH(CwyMeterCtrl)
double m_dMaxValue; //最大量程
afx_msg void OnDMaxValueChanged();
double m_dMinValue; //最小量程
afx_msg void OnDMinValueChanged();
double m_dCurrentValue; //当前值
afx_msg void OnDCurrentValueChanged();
short m_nScaleDecimals; //标尺精度
afx_msg void OnNScaleDecimalsChanged();
short m_nValueDecimals; //数值精度
afx_msg void OnNValueDecimalsChanged();
OLE_COLOR m_colorNeedle; //指针颜色
afx_msg void OnColorNeedleChanged();
CString m_strUnits; //计量单位
afx_msg void OnStrUnitsChanged();
afx_msg void SetCurrentValue(double val);
//}}AFX_DISPATCH
DECLARE_DISPATCH_MAP()

afx_msg void AboutBox();

// Event maps
//{{AFX_EVENT(CwyMeterCtrl)
//}}AFX_EVENT
DECLARE_EVENT_MAP()

// Dispatch and event IDs
public:
enum {
//{{AFX_DISP_ID(CwyMeterCtrl)
dispidSetCurrentValue = 8L,
//}}AFX_DISP_ID
};
};

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

#endif // !defined(AFX_WYMETERCTL_H__15491A73_5B63_11D5_ADD3_001088AB5D33__INCLUDED)