zgbutton.cpp

有用的光盘工具安装向导软件

// ZgButton.cpp : implementation file
//

#include "stdafx.h"
#include "ZgButton.h"
#include "ZgTools.h"

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

/////////////////////////////////////////////////////////////////////////////
// CZgButton

CZgButton::CZgButton()
{
	m_bTracking = FALSE;
	m_bOver = FALSE;
	m_bDown = FALSE;
	m_bFocus = FALSE;
	m_bDefault = FALSE;
}

CZgButton::~CZgButton()
{
}


BEGIN_MESSAGE_MAP(CZgButton, CButton)
	//{{AFX_MSG_MAP(CZgButton)
	ON_WM_MOUSEMOVE()
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave)
	ON_MESSAGE(WM_MOUSEHOVER, OnMouseHover)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CZgButton message handlers

void CZgButton::PreSubclassWindow() 
{
	// TODO: Add your specialized code here and/or call the base class
	UINT uStyle = GetButtonStyle();
	if (uStyle == BS_DEFPUSHBUTTON)
		m_bDefault = TRUE;
	ModifyStyle(0, BS_OWNERDRAW);
	CButton::PreSubclassWindow();
}

void CZgButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	CRect rect =  lpDrawItemStruct->rcItem;
	CDC *pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
	int nSaveDC  =pDC->SaveDC();
	UINT state = lpDrawItemStruct->itemState;
	
	CZgMemDC dcMem(pDC, &rect);
	
	//获取按钮的状态
	m_bFocus = state & ODS_FOCUS;
	m_bDown = state & ODS_SELECTED;

	if (m_bDefault)
		m_bFocus = TRUE;

	//内边框
	COLORREF crTop, crBottom;
	CRect rcOver = rect;
	rcOver.DeflateRect(1,1);
	if (m_bDown)
	{
		crTop = RGB(209, 204, 193);
		crBottom = RGB(218, 216, 207);
	}
	else if (m_bOver)
	{
		crTop = RGB(255, 240, 207);
		crBottom = RGB(229, 151, 0);
	}
	else if (m_bFocus)
	{
		crTop = RGB(203, 231, 255);
		crBottom = RGB(105, 130, 238);
	}
	else
	{
		crTop = RGB(254, 254, 254);
		crBottom = RGB(226, 223, 214);
		crBottom = RGB(214, 208, 197);
	}
	GradientFillRect(dcMem.m_hDC, rcOver, GRADIENT_FILL_RECT_V, crTop, crBottom);

	//外边框
	CZgPenDC pen(&dcMem, RGB(0, 60, 116));
	if (state & ODS_DISABLED)
		pen.Color(RGB(201, 199, 186));	
	
	DrawRoundBorder(&dcMem, rect);

	//内部填充
	if (!m_bDown)
	{
		CRect rcIn = rect;
		if (m_bOver || m_bFocus)
			rcIn.DeflateRect(3,3);
		else
			rcIn.DeflateRect(2,2);
		crTop = RGB(252, 252, 251);
		crBottom = RGB(236, 235, 230);
		GradientFillRect(dcMem.m_hDC, rcIn, GRADIENT_FILL_RECT_V, crTop, crBottom);
	}
	
	rect.DeflateRect(CSize(GetSystemMetrics(SM_CXEDGE), GetSystemMetrics(SM_CYEDGE)));
	//
	if (m_bFocus)
	{
		CRect rcFoucs = rect;
		dcMem.DrawFocusRect(rcFoucs);
	}

	//文本
	
	CZgWindowText strTitle(this);

	if (strlen(strTitle)>0)
	{
		CFont* hFont = GetFont();
		CFont* hOldFont = dcMem.SelectObject(hFont);
		CSize szExtent = dcMem.GetTextExtent(strTitle, lstrlen(strTitle));
		if (strstr(strTitle, "&")!=0)
			szExtent.cx -= dcMem.GetTextExtent("&").cx;
		
		CPoint pt( rect.CenterPoint().x - szExtent.cx / 2, rect.CenterPoint().y - szExtent.cy / 2);
		if (state & ODS_SELECTED) 
			pt.Offset(1, 1);
		int nMode = dcMem.SetBkMode(TRANSPARENT);
		if (state & ODS_DISABLED)
			dcMem.DrawState(pt, szExtent, strTitle, DSS_DISABLED, TRUE, 0, (HBRUSH)NULL);
		else
			dcMem.DrawState(pt, szExtent, strTitle, DSS_NORMAL, TRUE, 0, (HBRUSH)NULL);
		dcMem.SelectObject(hOldFont);
		dcMem.SetBkMode(nMode);
	}	
}

void CZgButton::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if (!m_bTracking)
	{
		TRACKMOUSEEVENT tms;
		tms.cbSize = sizeof(TRACKMOUSEEVENT);
		tms.dwFlags = TME_LEAVE|TME_HOVER;
		tms.dwHoverTime = 1;
		tms.hwndTrack = m_hWnd;
		m_bTracking = ::_TrackMouseEvent(&tms);
	}
	CButton::OnMouseMove(nFlags, point);
}

LRESULT CZgButton::OnMouseLeave(WPARAM wParam, LPARAM lParam)
{
	m_bTracking = FALSE;
	m_bOver = FALSE;
	
	InvalidateRect(NULL);
	return m_bTracking;
}

LRESULT CZgButton::OnMouseHover(WPARAM wParam, LPARAM lParam)
{
	m_bOver = TRUE;
	InvalidateRect(NULL);
	return m_bTracking;
}

void CZgButton::DrawRoundBorder(CDC *pDC, CRect rcBorder)
{
	rcBorder.DeflateRect(0, 0, 1, 1);
	CPoint pt[]={CPoint(rcBorder.left, rcBorder.top+2), 
				 CPoint(rcBorder.left, rcBorder.bottom-2),
				 CPoint(rcBorder.left+1, rcBorder.bottom-1),
				 CPoint(rcBorder.left+2, rcBorder.bottom),
				 CPoint(rcBorder.right-2, rcBorder.bottom),
				 CPoint(rcBorder.right-1, rcBorder.bottom-1),
				 CPoint(rcBorder.right, rcBorder.bottom-2),
				 CPoint(rcBorder.right, rcBorder.top+2),
				 CPoint(rcBorder.right-1, rcBorder.top+1),
				 CPoint(rcBorder.right-2, rcBorder.top),
				 CPoint(rcBorder.left+2, rcBorder.top),
				 CPoint(rcBorder.left+1, rcBorder.top+1),
				 CPoint(rcBorder.left, rcBorder.top+2)};

	BYTE bt[]={PT_MOVETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO,
			   PT_LINETO};

	pDC->PolyDraw(pt, bt, 13);
}