mainfrm.cpp

C++编程100例

// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "TitleBar.h"

#include "MainFrm.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_WM_NCLBUTTONDOWN()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here
	
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("Failed to create status bar\n");
		return -1;      // fail to create
	}

	// TODO: Delete these three lines if you don't want the toolbar to
	//  be dockable
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	cs.style &=~WS_SYSMENU; //取消Title Bar上的按钮
    return CFrameWnd::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers


LRESULT CMainFrame::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	LRESULT lrst=CFrameWnd::DefWindowProc(message, wParam, lParam); 
    if (!::IsWindow(m_hWnd))
		return lrst;
	if (message == WM_NCPAINT || message == WM_NCACTIVATE || message==WM_NOTIFY)
	{
		CDC *pWinDC=GetWindowDC();
		if (pWinDC)
			DrawTitleBar(pWinDC);
		ReleaseDC(pWinDC);
	}
	return lrst;
}

void CMainFrame::DrawTitleBar(CDC *pDC)
{
	if (!m_hWnd) return;

	CRect rtWnd, rtTitle, rtButtons;
	GetWindowRect(&rtWnd); //整个Window的相对于屏幕的矩形
	//取得整个Title bar的矩形
	rtTitle.left=GetSystemMetrics(SM_CXFRAME);
	rtTitle.top=GetSystemMetrics(SM_CYFRAME);
	rtTitle.right=rtWnd.right-rtWnd.left-GetSystemMetrics(SM_CXFRAME);
	rtTitle.bottom=rtTitle.top+GetSystemMetrics(SM_CYSIZE);
	//重画Title Bar
	DrawBmpTitleBar(pDC, rtTitle);
	//重画icon
	HICON hIcon=(HICON)::GetClassLong(m_hWnd, GCL_HICON);
	m_rtIcon.left=rtTitle.right-GetSystemMetrics(SM_CYSMICON);
	m_rtIcon.top=rtTitle.top+1;
	m_rtIcon.right=m_rtIcon.left+GetSystemMetrics(SM_CXSMICON);
	m_rtIcon.bottom=m_rtIcon.top+GetSystemMetrics(SM_CYSMICON);
	::DrawIconEx(pDC->m_hDC, m_rtIcon.left, m_rtIcon.top,hIcon,
		GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
		0, NULL, DI_NORMAL);
	m_rtIcon.OffsetRect(rtWnd.TopLeft()); //记录Icon屏幕位置
	//重画最小button
	int nButtHeight=GetSystemMetrics(SM_CYSMSIZE);
	rtButtons.left=rtTitle.left;
	rtButtons.top=rtTitle.top+(GetSystemMetrics(SM_CYSIZE)-nButtHeight)/2;
	rtButtons.right=rtButtons.left+GetSystemMetrics(SM_CXSMSIZE);
	rtButtons.bottom=rtButtons.top+nButtHeight; 
	pDC->DrawFrameControl(&rtButtons, DFC_CAPTION, DFCS_CAPTIONMIN);
	m_rtButtMin=rtButtons;
	m_rtButtMin.OffsetRect(rtWnd.TopLeft()); //记录最小button屏幕位置
	//重画最大或恢复button
	rtButtons.left=rtButtons.right;
	rtButtons.right=rtButtons.left+GetSystemMetrics(SM_CXSMSIZE);
	pDC->DrawFrameControl(&rtButtons, DFC_CAPTION, IsZoomed() ? DFCS_CAPTIONRESTORE : DFCS_CAPTIONMAX);
	m_rtButtMax=rtButtons;
	m_rtButtMax.OffsetRect(rtWnd.TopLeft());//记录button屏幕位置
	//重画关闭button
	rtButtons.left=rtButtons.right;
	rtButtons.right=rtButtons.left+GetSystemMetrics(SM_CXSMSIZE);
	pDC->DrawFrameControl(&rtButtons, DFC_CAPTION, DFCS_CAPTIONCLOSE);
	m_rtButtExit=rtButtons;
	m_rtButtExit.OffsetRect(rtWnd.TopLeft());//记录关闭button屏幕位置
	//重画caption
	int nOldMode=pDC->SetBkMode(TRANSPARENT);
	COLORREF clOldText=pDC->SetTextColor(RGB(0, 0, 0));
	pDC->SelectStockObject(ANSI_FIXED_FONT);
	rtTitle.right-=GetSystemMetrics(SM_CYSMICON);
	pDC->DrawText((LPSTR)"自绘标题栏",-1, &rtTitle, DT_CENTER);
	pDC->SetBkMode(nOldMode);
	pDC->SetTextColor(clOldText);
}

void CMainFrame::OnNcLButtonDown(UINT nHitTest, CPoint point) 
{	
	CFrameWnd::OnNcLButtonDown(nHitTest, point);
	//检测最小，最大和关闭按钮是否按到
	if (m_rtButtExit.PtInRect(point))
		SendMessage(WM_CLOSE);
	else if (m_rtButtMin.PtInRect(point))
		SendMessage(WM_SYSCOMMAND, SC_MINIMIZE, MAKELPARAM(point.x, point.y) );
	else if (m_rtButtMax.PtInRect(point))
	{
		if (IsZoomed())
			SendMessage(WM_SYSCOMMAND, SC_RESTORE, MAKELPARAM(point.x, point.y));
		else
			SendMessage(WM_SYSCOMMAND, SC_MAXIMIZE, MAKELPARAM(point.x, point.y) );
	}
}

void CMainFrame::DrawBmpTitleBar(CDC *pDC, CRect rcTitle)
{
	CBitmap bmp;
	bmp.LoadBitmap(IDB_BITMAP);
	CBrush brush;
	brush.CreatePatternBrush(&bmp);
	pDC->FillRect(rcTitle,&brush);
}