mybutton.cpp

Visual C++ 的学习资料一

// MyButton.cpp : implementation file
//

#include "stdafx.h"
#include "Button.h"
#include "MyButton.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyButton

CMyButton::CMyButton()
{
}

CMyButton::~CMyButton()
{
}


BEGIN_MESSAGE_MAP(CMyButton, CButton)
	//{{AFX_MSG_MAP(CMyButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyButton message handlers


void CMyButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
	CRect rect(lpDrawItemStruct->rcItem);
	COLORREF oc = pDC->GetTextColor();
	int iObk = pDC->SetBkMode(TRANSPARENT);
	UINT state = lpDrawItemStruct->itemState;
	CFont * pOldFont = NULL;
	int iYOffset = 0, iXOffset = 0;
	rect.top  += iYOffset;
	rect.left += iXOffset;
	if (state & ODS_DISABLED)
	{		
		CBrush grayBrush;
		grayBrush.CreateSolidBrush (GetSysColor (COLOR_GRAYTEXT));
		CSize sz = pDC->GetTextExtent("Button");
		int x = rect.left + (rect.Width() - sz.cx)/2;
		int y = rect.top + (rect.Height() - sz.cy)/2;
		rect.top  += 2;
		rect.left += 2;
		pDC->SetTextColor(GetSysColor(COLOR_3DHIGHLIGHT));
		pDC->DrawText("Button", rect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
		rect.top  -= 2;
		rect.left -= 2;
		pDC->SetTextColor(GetSysColor(COLOR_GRAYTEXT));
		pDC->DrawText("Button", rect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
	}
	else
	{
			if (state & ODS_SELECTED)
			{
				
				pDC->Draw3dRect(rect,GetSysColor(COLOR_3DSHADOW), GetSysColor(COLOR_3DHILIGHT));
			}
			else
			{
				
				pDC->Draw3dRect(rect,GetSysColor(COLOR_3DHILIGHT),GetSysColor(COLOR_3DSHADOW));
			}
			pDC->SetTextColor(RGB(0,0,255));
	}
	CString text;
	this->GetWindowText(text);
	pDC->DrawText(text, rect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
}