MFC 日期时间控件CDateTimeCtrl自绘

来源：清泛原创 2016-11-23 09:03:04 人气：我有话说( 0 人参与)

先看效果：方法同ComboBox自绘（http: www.tsingfun.com html 2016 code_1110 100.html），采用图片拼接的方式，本例实现较基础仍有细节待...

先看效果：

方法同ComboBox自绘（https://www.tsingfun.com/down/code/100.html），采用图片拼接的方式，本例实现较基础仍有细节待完善。

部分代码如下，需自行调整：
MyDateTime.h

#pragma once
#include <vector>
#include "../Resource.h"


/////////////////////////////////////////////////////////////////////////////
// CMyDateTime window

class CMyDateTime : public CDateTimeCtrl
{
// Construction
public:
	CMyDateTime();
// Attributes
private:
//-------------Combo Box image scheme-----------------------------
//		-------------------------------------------------------
//	   | m_nIDLeft	-----m_nIDCenter-----			|m_nIDRight|
//		-------------------------------------------------------
//-----------------------------------------------------------------


	UINT m_nIDLeft, m_nIDRight, m_nIDCenter;							//Resource IDs for ComboBox

// Implementation
public:
	void SetComboBitmap(UINT nIDLeft, UINT nIDRight, UINT nIDCenter);
	virtual ~CMyDateTime();

private:

	CFont*			m_pfDefault;

	// Generated message map functions
protected:
	//{{AFX_MSG(CMyDateTime)
	afx_msg void OnPaint();
	//}}AFX_MSG

	DECLARE_MESSAGE_MAP()
};

MyDateTime.cpp

#include "stdafx.h"
#include "MyDateTime.h"
#include "../CommonFunc.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

CMyDateTime::CMyDateTime()
{
	m_nIDLeft = m_nIDRight = m_nIDCenter = 0;
	//m_nIDListLeft, m_nIDListRight, m_nIDListTop, m_nIDListBot = 0;

	m_pfDefault = ::GetFont(_T("微软雅黑"), 10);

	//默认图片初始化
	SetComboBitmap(IDB_COMBO_LEFT,IDB_COMBO_RIGHT,IDB_COMBO_CEN);
}

CMyDateTime::~CMyDateTime()
{
	SAFEDELETE(m_pfDefault)
}


BEGIN_MESSAGE_MAP(CMyDateTime, CDateTimeCtrl)
	//{{AFX_MSG_MAP(CMyDateTime)
	ON_WM_PAINT()
	ON_WM_SETFOCUS()
	//}}AFX_MSG_MAP

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyDateTime message handlers

#define SET_ZERO(X) memset((void *)&X,0,sizeof(X));

void CMyDateTime::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	dc.SelectObject(m_pfDefault);
	if(IsWindowEnabled())
		dc.SetTextColor(RGB(40,40,40));
	else
		dc.SetTextColor(RGB(174,174,174));

	RECT rc;
	CDC MemDC;
	
	GetClientRect(&rc);
	MemDC.CreateCompatibleDC(&dc);
	
	CBitmap bmpComboRight,bmpComboLeft, bmpComboCenter,bmpComboBot;
	BITMAP bitRight, bitLeft, bitCenter;
	SET_ZERO(bitRight); SET_ZERO(bitLeft); SET_ZERO(bitCenter);
	if( m_nIDLeft )
	{
		bmpComboLeft.LoadBitmap(m_nIDLeft);
		bmpComboLeft.GetBitmap(&bitLeft);
		MemDC.SelectObject(bmpComboLeft);
		dc.BitBlt(rc.left,rc.top,bitLeft.bmWidth,bitLeft.bmHeight,&MemDC,0,0,SRCCOPY);
	}
	if( m_nIDRight )
	{
		bmpComboRight.LoadBitmap(m_nIDRight);
		bmpComboRight.GetBitmap(&bitRight);
		MemDC.SelectObject(bmpComboRight);
		dc.BitBlt(rc.right-bitRight.bmWidth,rc.top,bitRight.bmWidth,bitRight.bmHeight,&MemDC,0,0,SRCCOPY);
	}

	if( m_nIDCenter )
	{
		bmpComboCenter.LoadBitmap(m_nIDCenter);
		bmpComboCenter.GetBitmap(&bitCenter);
		MemDC.SelectObject(bmpComboCenter);
		dc.StretchBlt(rc.left+bitLeft.bmWidth,rc.top,rc.right-bitLeft.bmWidth-bitRight.bmWidth,bitCenter.bmHeight,&MemDC,0,0,bitCenter.bmWidth,bitCenter.bmHeight,SRCCOPY);
	}

	CString sz;
	GetWindowText(sz);
	rc.left += 5; //左边距
	rc.top += 1;  //上边距

	dc.SetBkMode(TRANSPARENT);
	
	dc.DrawText(sz,&rc,DT_VCENTER | DT_SINGLELINE);
}

void CMyDateTime::SetComboBitmap(UINT nIDLeft, UINT nIDRight, UINT nIDCenter)
{
	m_nIDCenter = nIDCenter; m_nIDLeft = nIDLeft; m_nIDRight = nIDRight;
}

其中图片就是左中右三个截图啦：