mybutton.cpp

用VC编的电子日记软件

// MyButton.cpp : implementation file
//

#include "stdafx.h"

#include "MyButton.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyButton
#define MOVE_IN 10
#define MOVE_DOWN 11
#define MOVE_UP 12
#define MOVE_OUT 13

CMyButton::CMyButton()
{i=false;
j=false;
m_focus=false;
m_move=true;
isflat=false;
select=false;
}

CMyButton::~CMyButton()
{
}


BEGIN_MESSAGE_MAP(CMyButton, CButton)
	//{{AFX_MSG_MAP(CMyButton)
	ON_WM_ERASEBKGND()
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

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

void CMyButton::DrawItem(LPDRAWITEMSTRUCT lps) 
{
	// TODO: Add your code to draw the specified item
	
	CDC *dc=CDC::FromHandle(lps->hDC);
	UINT state=lps->itemState;
	focusrect.CopyRect(&lps->rcItem);
    focusrect.DeflateRect(4,4,4,4);
	btnrect.CopyRect(&lps->rcItem);
  		if(state&ODS_FOCUS)
		{
			m_focus=true;
		}
		if(!(state&ODS_FOCUS))
			m_focus=false;
		if(state&ODS_SELECTED)
            select=true;
		if(!state&ODS_SELECTED)
			select=false;

		Draw();


}



void CMyButton::fresh()
{
   CClientDC dc(this);
   CRect rect;
   GetClientRect(&rect);
   dc.BitBlt(0,0,rect.Width(),rect.Height(),&memdc,0,0,SRCCOPY);
}

BOOL CMyButton::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default
	if(!j&&isflat)
	{
	CBitmap bitmap;
	CRect rect;
	GetClientRect(&rect);
	memdc.CreateCompatibleDC(pDC);
	bitmap.CreateCompatibleBitmap(pDC,rect.Width(),rect.Height ());
	memdc.SelectObject(&bitmap);
	memdc.BitBlt(0,0,rect.Width(),rect.Height(),pDC,0,0,SRCCOPY);
	j=true;
	}
	return TRUE;
}

void CMyButton::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if(m_move)
	{
		m_move=false;
		m_state=MOVE_IN;		
		Draw();
		SetTimer(1,10,NULL);
	}
	CButton::OnMouseMove(nFlags, point);
}

void CMyButton::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_state=MOVE_DOWN;
    Draw();
	CButton::OnLButtonDown(nFlags, point);
}

void CMyButton::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_state=MOVE_UP;
    Draw();
	CButton::OnLButtonUp(nFlags, point);
}

void CMyButton::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	CPoint pt;
	GetCursorPos(&pt);
	CRect rect;
	GetWindowRect(&rect);
	if(!rect.PtInRect(pt)&&!m_move)
	{   
		KillTimer(1);
	   m_move=true;
	   m_state=MOVE_OUT;
	    Draw();
	}
	CButton::OnTimer(nIDEvent);
}

void CMyButton::Draw()
{
	CClientDC dc(this);
	if(!isflat)
{
	CString st=_T("");
	GetWindowText(st);
    CBrush br(RGB(196,112,64));
    CBrush focusbr(RGB(255,255,255));
   	dc.FillRect(&btnrect,&br);
	
	dc.SetTextColor(RGB(0,0,0));
	dc.SetBkColor(RGB(196,112,64));
	dc.DrawText(st,&btnrect,DT_CENTER|DT_SINGLELINE|DT_VCENTER);

    if(m_focus)
	{
		dc.DrawFocusRect(focusrect);
			dc.Draw3dRect(&btnrect,RGB(255,255,255),RGB(0,0,0));
		if(select&&m_state==MOVE_DOWN)
		{
			dc.Draw3dRect(&btnrect,RGB(0,0,0),RGB(255,255,255));
		}
	}
    else
			dc.Draw3dRect(&btnrect,RGB(255,255,255),RGB(0,0,0));
}
	else{
	CRect rect;
	GetClientRect(&rect);
	fresh();
    switch(m_state)
	{
	case MOVE_UP:
		if(!m_move)
			dc.Draw3dRect(&rect,RGB(255,255,255),RGB(0,0,0));
		break;
	case MOVE_IN:
		dc.Draw3dRect(&rect,RGB(255,255,255),RGB(0,0,0));
		break;
	case MOVE_DOWN:
		
		dc.Draw3dRect(&rect,RGB(0,0,0),RGB(255,255,255));
		break;

	   default:
		   break;
	}
	CString st=_T("");
	GetWindowText(st);
	CFont font;
	LOGFONT ft;
	memset(&ft,0,sizeof(LOGFONT));
	ft.lfHeight=20;
	strcpy(ft.lfFaceName,"宋体");
	font.CreateFontIndirect(&ft);
	CFont *oldfont=dc.SelectObject(&font);
	dc.SetTextColor(RGB(0,0,0));
	dc.SetBkMode(TRANSPARENT);
	CSize sz=dc.GetTextExtent(st);
	int rectwidth=rect.Width();
	int recthight=rect.Height();
	int fontwidth=sz.cx;
	int fonthight=sz.cy;
	int x=(rectwidth-fontwidth)/2;
	int y=(recthight-fonthight)/2+1;
	if(m_state==MOVE_DOWN)
	{
		x++;
		y++;
	}
	dc.TextOut(x,y,st);
    dc.SelectObject(oldfont);
	}
}