www.pudn.com > LECTEUR-MP3.zip > RoundSliderCtrl.h

// RoundSliderCtrl.h : Header file 
// 
// Copyright (c) 1999 Daniel Frey 
// See RoundSliderCtrl.cpp for details. 
 
#if !defined(_ROUNDSLIDERCTRL_H_) 
#define _ROUNDSLIDERCTRL_H_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#define WM_RSLID_CHANGE 300 
 
class CRoundSliderCtrl : public CSliderCtrl 
{ 
protected: 
	CPoint	m_ptCenter; 
	int		m_nRadius; 
	CRgn	m_rgn; 
 
	int		m_nZero; 
	bool	m_bInverted; 
 
	CString	m_strText; 
	int		m_nKnobRadius; 
 
	bool	m_bDragging; 
	bool	m_bDragChanged; 
 
public: 
	DECLARE_DYNAMIC(CRoundSliderCtrl) 
 
	CRoundSliderCtrl(); 
	virtual ~CRoundSliderCtrl(); 
 
	// You may use '%ld' to show the slider value. Default: "%ld°" 
	virtual void SetText(const CString& strNewText); 
	virtual CString GetText() const; 
 
	// Override this function for customized output 
	virtual CString OnFormatText(); 
 
	// Default: 7, Minimum: 5 
	virtual void SetKnobRadius(const int nNewKnobRadius); 
	virtual int GetKnobRadius() const; 
 
	// 0-359, 0 = Top, 90 = Right, 180 = Bottom, 270 = Left 
	virtual void SetZero(const int nZero); 
	virtual int GetZero() const; 
 
	virtual void SetInverted(const bool bNewInverted = true); 
	virtual bool GetInverted(); 
 
	//{{AFX_VIRTUAL(CRoundSliderCtrl) 
	protected: 
	virtual void PreSubclassWindow(); 
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs); 
	//}}AFX_VIRTUAL 
 
protected: 
	virtual void Init(); 
	virtual bool SetKnob(const CPoint& pt); 
	virtual void PostMessageToParent(const int nTBCode) const; 
 
	//{{AFX_MSG(CRoundSliderCtrl) 
	afx_msg void OnSize(UINT nType, int cx, int cy); 
	afx_msg BOOL OnEraseBkgnd(CDC* pDC); 
	afx_msg void OnPaint(); 
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point); 
	afx_msg void OnMouseMove(UINT nFlags, CPoint point); 
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point); 
	afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags); 
	afx_msg void OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags); 
	//}}AFX_MSG 
 
	DECLARE_MESSAGE_MAP() 
 
#ifdef _DEBUG 
public: 
	virtual void AssertValid() const; 
	virtual void Dump(CDumpContext& dc) const; 
#endif // _DEBUG 
}; 
 
//{{AFX_INSERT_LOCATION}} 
 
#endif // _ROUNDSLIDERCTRL_H_