www.pudn.com > year_month_selector.zip > YMSelector.h

// YMSelector.h 
// Control to select year and month 
// Designed and developed by Shekar Narayanan 
// ShekarNarayanan@Hotmail.com 
//  
 
#if !defined(AFX_YMSELECTOR_H__12C342F1_008C_11D2_AECD_0004AC31E75C__INCLUDED_) 
#define AFX_YMSELECTOR_H__12C342F1_008C_11D2_AECD_0004AC31E75C__INCLUDED_ 
 
#if _MSC_VER >= 1000 
#pragma once 
#endif // _MSC_VER >= 1000 
// YMSelector.h : header file 
// 
 
#define     START_YEAR      1900 
#define     END_YEAR        2050     
#define     YM_SELECTED     WM_USER + 50 
#define     YM_ABORTED      WM_USER + 51 
 
///////////////////////////////////////////////////////////////////////////// 
// CYMPopUp window 
// Used by the YMSelector control 
 
class CYMPopUp : public CWnd 
{ 
// Construction 
public: 
	CYMPopUp(CPoint p, CWnd* pParent, int nYear = -1, int nMonth = -1); 
 
// Attributes 
public: 
 
// Operations 
public: 
    BOOL Create(CPoint p, CWnd* pParent); 
 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CYMPopUp) 
	//}}AFX_VIRTUAL 
 
// Implementation 
public: 
	virtual ~CYMPopUp(); 
 
	// Generated message map functions 
protected: 
	BOOL	m_inPlus; 
	BOOL	m_inMinus; 
    int     m_nYear; 
    int     m_nMonth; 
    CBrush  m_bkBrush; 
    CWnd*   m_pParent; 
    CRect   m_rCells[12]; 
    CRect   m_rMinus; 
    CRect   m_rPlus; 
    CRect   m_rYear; 
 
	//{{AFX_MSG(CYMPopUp) 
	afx_msg void OnNcDestroy(); 
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point); 
	afx_msg void OnPaint(); 
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point); 
	afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags); 
	afx_msg BOOL OnEraseBkgnd(CDC* pDC) ; 
	afx_msg void OnMouseMove(UINT nFlags, CPoint point); 
	//}}AFX_MSG 
	DECLARE_MESSAGE_MAP() 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
 
///////////////////////////////////////////////////////////////////////////// 
// CYMSelector window 
 
class CYMSelector : public CButton 
{ 
// Construction 
public: 
	CYMSelector(); 
 
// Attributes 
public: 
 
    void    SetYear(int y); 
    void    SetMonth(int m); 
    int     GetYear(); 
    int     GetMonth(); 
    LPCTSTR GetMonthString(); 
 
// Operations 
public: 
 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CYMSelector) 
	public: 
	virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct); 
	protected: 
	virtual void PreSubclassWindow(); 
	//}}AFX_VIRTUAL 
 
// Implementation 
public: 
	virtual ~CYMSelector(); 
 
	// Generated message map functions 
protected: 
    int m_nMonth; 
    int m_nYear; 
	//{{AFX_MSG(CYMSelector) 
	afx_msg void OnClicked(); 
	//}}AFX_MSG 
    afx_msg LONG YMSelected(WPARAM wParam = 0, LPARAM lParam = 0); 
    afx_msg LONG YMAborted (WPARAM wParam = 0, LPARAM lParam = 0); 
 
	DECLARE_MESSAGE_MAP() 
}; 
 
// MemDC.h : header file 
// 
 
////////////////////////////////////////////////// 
// CMemDC - memory DC 
// 
// Author: Keith Rule 
// Email:  keithr@europa.com 
// Copyright 1996-1997, Keith Rule 
// 
// You may freely use or modify this code provided this 
// Copyright is included in all derived versions. 
// 
// History - 10/3/97 Fixed scrolling bug. 
//                   Added print support. 
//           25 feb 98 - fixed minor assertion bug 
// 
// This class implements a memory Device Context 
 
class CMemDC : public CDC 
{ 
public: 
 
    // constructor sets up the memory DC 
    CMemDC(CDC* pDC) : CDC() 
    { 
        ASSERT(pDC != NULL); 
 
        m_pDC = pDC; 
        m_pOldBitmap = NULL; 
        m_bMemDC = !pDC->IsPrinting(); 
               
        if (m_bMemDC)    // Create a Memory DC 
        { 
            pDC->GetClipBox(&m_rect); 
            CreateCompatibleDC(pDC); 
            m_bitmap.CreateCompatibleBitmap(pDC, m_rect.Width(), m_rect.Height()); 
            m_pOldBitmap = SelectObject(&m_bitmap); 
            SetWindowOrg(m_rect.left, m_rect.top); 
        } 
        else        // Make a copy of the relevent parts of the current DC for printing 
        { 
            m_bPrinting = pDC->m_bPrinting; 
            m_hDC       = pDC->m_hDC; 
            m_hAttribDC = pDC->m_hAttribDC; 
        } 
    } 
     
    // Destructor copies the contents of the mem DC to the original DC 
    ~CMemDC() 
    { 
        if (m_bMemDC)  
        {     
            // Copy the offscreen bitmap onto the screen. 
            m_pDC->BitBlt(m_rect.left, m_rect.top, m_rect.Width(), m_rect.Height(), 
                          this, m_rect.left, m_rect.top, SRCCOPY); 
 
            //Swap back the original bitmap. 
            SelectObject(m_pOldBitmap); 
        } else { 
            // All we need to do is replace the DC with an illegal value, 
            // this keeps us from accidently deleting the handles associated with 
            // the CDC that was passed to the constructor. 
            m_hDC = m_hAttribDC = NULL; 
        } 
    } 
 
    // Allow usage as a pointer 
    CMemDC* operator->() {return this;} 
         
    // Allow usage as a pointer 
    operator CMemDC*() {return this;} 
 
private: 
    CBitmap  m_bitmap;      // Offscreen bitmap 
    CBitmap* m_pOldBitmap;  // bitmap originally found in CMemDC 
    CDC*     m_pDC;         // Saves CDC passed in constructor 
    CRect    m_rect;        // Rectangle of drawing area. 
    BOOL     m_bMemDC;      // TRUE if CDC really is a Memory DC. 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
//{{AFX_INSERT_LOCATION}} 
// Microsoft Developer Studio will insert additional declarations immediately before the previous line. 
 
#endif // !defined(AFX_YMSELECTOR_H__12C342F1_008C_11D2_AECD_0004AC31E75C__INCLUDED_)