xpbutton.cpp

程序开发中写log用的实现代码, C语言代码, 可以不用修改再C++或MFC中使用, 可以将写log的函数使用方法同printf, 可以接收可变参数. 对于开发程序很有帮助.

//  XPButton.cpp : implementation file
//  Modified by WangDongdong

#include "stdafx.h"
#include "XPButton.h"

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

//////////////////////////////////////////////////////////////////////////// / 
//  CXPButton

IMPLEMENT_DYNCREATE(CXPButton,  CButton)


CXPButton::CXPButton()
{
	pBoundryPen.CreatePen(PS_INSIDEFRAME|PS_SOLID, 1, RGB(0, 0, 0));
	pInsideBoundryPenLeft.CreatePen(PS_INSIDEFRAME|PS_SOLID, 3,  RGB(250,  196,  88)); 
	pInsideBoundryPenRight.CreatePen(PS_INSIDEFRAME|PS_SOLID, 3,  RGB(251,  202,  106)); 
	pInsideBoundryPenTop.CreatePen(PS_INSIDEFRAME|PS_SOLID, 2,  RGB(252,  210,  121)); 
	pInsideBoundryPenBottom.CreatePen(PS_INSIDEFRAME|PS_SOLID, 2,  RGB(229,  151,  0)); 
	pFillActive.CreateSolidBrush(RGB(222,  223,  236));
	pFillInactive.CreateSolidBrush(RGB(222,  223,  236));
	m_bOverControl = m_bTracking = 0;
}

CXPButton::~CXPButton()
{
	//  TODO: Cleanup your control's instance data here.
	pBoundryPen.DeleteObject();
	pFillActive.DeleteObject();
	pFillInactive.DeleteObject();
	pInsideBoundryPenLeft.DeleteObject();
	pInsideBoundryPenRight.DeleteObject();
	pInsideBoundryPenBottom.DeleteObject();
	pInsideBoundryPenTop.DeleteObject();
	
}


BEGIN_MESSAGE_MAP(CXPButton,  CButton)
// {{AFX_MSG_MAP(CXPButton)
//  NOTE  -  the ClassWizard will add and remove mapping macros here.
// }}AFX_MSG_MAP
ON_WM_MOUSEMOVE()
ON_MESSAGE(WM_MOUSELEAVE,  OnMouseLeave)
ON_MESSAGE(WM_MOUSEHOVER,  OnMouseHover)
END_MESSAGE_MAP()

//////////////////////////////////////////////////////////////////////////// / 
//  CXPButton message handlers

void CXPButton::DoGradientFill(CDC *pDC,  CRect rect)
{
	CBrush pBrush[64];
	int nWidth = (rect.right)  -  (rect.left);
    int nHeight = (rect.bottom)  -  (rect.top);
    CRect rct;
    for (int i=0; i<64; i ++ )
	{
		if(m_bOverControl)
		{
			if(Focus)
			{
				pBrush[i].CreateSolidBrush(RGB(255 - (i / 4),  255 - (i / 4),  255 - (i / 3)));
			}
			else
			{
				pBrush[i].CreateSolidBrush(RGB(255 - (i / 4),  255 - (i / 4),  255 - (i / 5)));			
			}
		}
		else
		{
			if(Focus)
			{
				pBrush[i].CreateSolidBrush(RGB(255 - (i / 3),  255 - (i / 3),  255 - (i / 4)));
			}
			else
			{
				pBrush[i].CreateSolidBrush(RGB(255 - (i / 3),  255 - (i / 3),  255 - (i / 5)));
			}
		}
	}
	
	
    for (i=rect.top; i<nHeight + 2; i ++ ) 
	{
        rct.SetRect (rect.left,  i,  nWidth + 2,  i  +  1);
        pDC ->FillRect (&rct,  &pBrush[((i * 63)  /  nHeight)]);
    }
	
    for (i=0; i<64; i ++ )
	{
		pBrush[i].DeleteObject();
	}
	
}

void CXPButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	//  TODO: Add your code to draw the specified item
	CDC* pDC   = CDC::FromHandle(lpDrawItemStruct ->hDC);
    CRect rect = lpDrawItemStruct ->rcItem;
    UINT state = lpDrawItemStruct ->itemState;
	CPoint pt;
	CString strText;
	CString &m_title = strText;
	GetWindowText(strText);
	
	pt.x = 10;
	pt.y = 10;
	
	pOldPen = pDC ->SelectObject(&pBoundryPen);
	
	pDC ->RoundRect(rect, pt);
	if(state & ODS_FOCUS)
	{
		Focus = TRUE;
	}
	else
	{
		Focus = FALSE;
	}
    
    pDC ->SelectObject(pOldPen);

    rect.DeflateRect( CSize(GetSystemMetrics(SM_CXEDGE),  GetSystemMetrics(SM_CYEDGE)));
	
	if (m_bOverControl)
	{
		pOldBrush = pDC ->SelectObject(&pFillActive);   
		DoGradientFill(pDC, rect);
		DrawInsideBorder(pDC, rect);
	}
	else
	{
		pOldBrush = pDC ->SelectObject(&pFillInactive);   

		DoGradientFill(pDC, rect);
	}
	pDC ->SelectObject(pOldBrush);
    
	//  Draw the text
    if (!m_title.IsEmpty() /*!strText.IsEmpty()*/ )
    {
        CSize Extent = pDC ->GetTextExtent(m_title /*strText*/ );
        CPoint pt( rect.CenterPoint().x  -  Extent.cx / 2,  
			rect.CenterPoint().y  -  Extent.cy / 2 );
		
        if (state & ODS_SELECTED) 
            pt.Offset(1, 1);
		
        int nMode = pDC ->SetBkMode(TRANSPARENT);
		
        if (state & ODS_DISABLED)
            pDC ->DrawState(pt,  Extent,  m_title /*strCaption*/ ,  DSS_DISABLED,  TRUE,  0,  (HBRUSH)NULL);
        else
            pDC ->TextOut(pt.x,  pt.y,  m_title /*strCaption*/ );
        pDC ->SetBkMode(nMode);
    }
	
	return;
	
}

void CXPButton::PreSubclassWindow() 
{
	ModifyStyle(0,  BS_OWNERDRAW);
	CButton::PreSubclassWindow();
}

void CXPButton::DrawInsideBorder(CDC *pDC,  CRect rect)
{
	CPoint oldpoint = pDC ->MoveTo(rect.left, rect.bottom - 3);
	pOldPen = pDC ->SelectObject(&pInsideBoundryPenLeft);
	pDC ->LineTo(rect.left, rect.top + 2);
	pDC ->SelectObject(&pInsideBoundryPenRight);
	pDC ->MoveTo(rect.right - 1, rect.bottom - 3);
	pDC ->LineTo(rect.right - 1, rect.top + 2);
	pDC ->SelectObject(&pInsideBoundryPenTop);
	pDC ->MoveTo(rect.left + 2, rect.top);
	pDC ->LineTo(rect.right - 2, rect.top);
	pDC ->SelectObject(&pInsideBoundryPenBottom);
	pDC ->MoveTo(rect.left + 2, rect.bottom);
	pDC ->LineTo(rect.right - 2, rect.bottom);
	pDC ->SelectObject(pOldPen);	
	pDC ->MoveTo(oldpoint);
}

void CXPButton::OnMouseMove(UINT nFlags,  CPoint point)
{
	if (!m_bTracking)
	{
		TRACKMOUSEEVENT tme;
		tme.cbSize = sizeof(tme);
		tme.hwndTrack = m_hWnd;
		tme.dwFlags = TME_LEAVE|TME_HOVER;
		tme.dwHoverTime = 1;
		m_bTracking = _TrackMouseEvent(&tme);		
	}	
	CButton::OnMouseMove(nFlags,  point);
	
}

void CXPButton::OnMouseHover(WPARAM wparam,  LPARAM lparam)
{
    wparam = wparam; /* avoid warning */
    lparam = lparam; /* avoid warning */

	m_bOverControl=TRUE;
	Invalidate();
}

LRESULT CXPButton::OnMouseLeave(WPARAM wparam,  LPARAM lparam)
{
    wparam = wparam; /* avoid warning */
    lparam = lparam; /* avoid warning */

	m_bTracking = FALSE;
	m_bOverControl = FALSE;
	Invalidate(FALSE);
	return 0;
}