// ButtonXp.cpp : implementation file
//

#include "stdafx.h"
#include "PreAlarm.h"
#include "ButtonXp.h"

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

/////////////////////////////////////////////////////////////////////////////
// CButtonXp

CButtonXp::CButtonXp()
{
}

CButtonXp::~CButtonXp()
{
}


BEGIN_MESSAGE_MAP(CButtonXp, CButton)
	//{{AFX_MSG_MAP(CButtonXp)
	ON_WM_MOUSEMOVE()
	ON_MESSAGE(WM_MOUSELEAVE,OnMouseOut)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CButtonXp message handlers

void CButtonXp::DrawItem(LPDRAWITEMSTRUCT lpDIS) 
{
	// TODO: Add your code to draw the specified item
	CDC	*pDC =CDC::FromHandle(lpDIS->hDC);

	CRect	rtControl(lpDIS->rcItem);

	CPen	pen,*old_pen;
	CBrush	brush,*old_brush;
	CString  strText;
	
	HFONT hOldFont = (HFONT)pDC->SelectObject ((HFONT)::GetStockObject (DEFAULT_GUI_FONT));

	UINT	state =lpDIS->itemState;

	if(state & ODS_FOCUS)
	{
		rtControl.DeflateRect(1,1);	//擁有焦點(diǎn)矩形變小
	}

	if((state & ODS_DISABLED) ||
		(!MouseOver() &&!(state & ODS_SELECTED)))
	{
		//普通狀態(tài)、禁用、擁有焦點(diǎn)三種情況下
		pen.CreatePen (PS_SOLID, 1, ::GetSysColor(COLOR_3DSHADOW));
		brush.CreateSolidBrush(HLS_TRANSFORM(::GetSysColor(COLOR_3DFACE),-10,0));
	}
	else
	{
		COLORREF	crBorder =::GetSysColor(COLOR_HIGHLIGHT);

		pen.CreatePen(PS_SOLID, 1, crBorder);

		if( state & ODS_SELECTED)
		{
			//按鈕按下時(shí)
			brush.CreateSolidBrush(HLS_TRANSFORM(crBorder,+50,-50));
			
			pDC->SetTextColor(RGB(240,240,240));
		}
		else
		{
			//鼠標(biāo)在區(qū)域內(nèi)	
			brush.CreateSolidBrush(HLS_TRANSFORM(crBorder,+80,-66));
			pDC->SetTextColor(::GetSysColor(COLOR_BTNTEXT));
		}
	}

	if(state &ODS_DISABLED)
		pDC->SetTextColor(::GetSysColor(COLOR_GRAYTEXT));//灰色字：禁用狀態(tài)
	else if(state & ODS_SELECTED)
		pDC->SetTextColor(RGB(240,240,240));	//白色字：PUSH狀態(tài)
	else if(MouseOver())	
		pDC->SetTextColor(0);	//黑色字：熱感應(yīng)狀態(tài)
	else
		pDC->SetTextColor(::GetSysColor(COLOR_BTNTEXT));	//黑色字：普通狀態(tài)	

	old_brush=pDC->SelectObject(&brush);
	old_pen  =pDC->SelectObject(&pen);

	pDC->Rectangle(rtControl);
	pDC->SetBkMode(TRANSPARENT);
	GetWindowText(strText);
	pDC->DrawText(strText,rtControl,DT_SINGLELINE|DT_CENTER|DT_VCENTER);


	if(state & ODS_FOCUS)
	{
		rtControl.DeflateRect(3,3);
		pDC->DrawFocusRect(rtControl);
	}

	pDC->SelectObject(old_pen);
	pDC->SelectObject(old_brush);
	pDC->SelectObject(hOldFont);
}

void CButtonXp::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if(m_bOver ==FALSE)
	{
		//鼠標(biāo)在按鈕之上
		m_bOver =TRUE;

		//按鈕重繪
		InvalidateRect(NULL,FALSE);

		//跟蹤鼠標(biāo)
		//當(dāng)鼠標(biāo)離開按鈕區(qū)域會(huì)收到WM_MOUSELEAVE,該消息直接調(diào)用OnMouseOut()
		TRACKMOUSEEVENT	tme;
		tme.cbSize =sizeof(TRACKMOUSEEVENT);
		tme.dwFlags =TME_LEAVE;
		tme.dwHoverTime=0;
		tme.hwndTrack =m_hWnd;
		::TrackMouseEvent(&tme);
	}
	CButton::OnMouseMove(nFlags, point);
}

void CButtonXp::PreSubclassWindow() 
{
	// TODO: Add your specialized code here and/or call the base class
	ModifyStyle(0,BS_OWNERDRAW);

	CButton::PreSubclassWindow();
}
/////////////////////////////////////////////////////
//返回鼠標(biāo)是否在按鈕區(qū)域內(nèi)
BOOL CButtonXp::MouseOver()
{
	return m_bOver;
}
void CButtonXp::OnMouseOut ()
{
	//鼠標(biāo)已離開按鈕區(qū)域
    m_bOver =FALSE;

	//重繪按鈕
	InvalidateRect(NULL,FALSE);
	
}