mainfrm.cpp

《vc++扩展编程实例》源码。运用Visual C++ 5.0或6.0的高级编程技巧

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

#include "stdafx.h"
#include "Wzd.h"

#include "MainFrm.h"

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

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

IMPLEMENT_DYNAMIC(CMainFrame, CMDIFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_WM_ACTIVATE()
	ON_WM_NCPAINT()
	ON_WM_NCACTIVATE()
	//}}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()
{
	m_bActive=TRUE;
	m_bitmapActive.LoadBitmapEx(IDB_ACTIVE_CAPTION_BITMAP,GetSysColor(COLOR_ACTIVECAPTION));
	m_bitmapInactive.LoadBitmapEx(IDB_INACTIVE_CAPTION_BITMAP,GetSysColor(COLOR_INACTIVECAPTION));
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.Create(this) ||
		!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: Remove this if you don't want tool tips or a resizeable toolbar
	m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() |
		CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);

	// 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)
{
	// keep flash small
	cs.style &= ~ FWS_ADDTOTITLE;

	return CMDIFrameWnd::PreCreateWindow(cs);
}

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

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

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

#endif //_DEBUG

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

void CMainFrame::OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized) 
{
	CMDIFrameWnd::OnActivate(nState, pWndOther, bMinimized);

	// set state and draw title
	m_bActive=(nState!=WA_INACTIVE);
	DrawTitle();
}

BOOL CMainFrame::OnNcActivate(BOOL bActive) 
{
	BOOL b=CMDIFrameWnd::OnNcActivate(bActive);

	// set state and draw title
	m_bActive=bActive;
	DrawTitle();

	return b;
}
void CMainFrame::OnNcPaint() 
{
	CMDIFrameWnd::OnNcPaint();
	
	// draw title
	DrawTitle();
}

void CMainFrame::DrawTitle() 
{
	// if window isn't visible or is minimized, skip
	if (!IsWindowVisible() || IsIconic())
		return;

	// get appropriate bitmap
	CDC memDC;
	CDC* pDC = GetWindowDC();
	memDC.CreateCompatibleDC(pDC);
	memDC.SelectObject(m_bActive ?   &m_bitmapActive:&m_bitmapInactive);

	// calculate where to draw caption
	CRect rect, rectWnd;
	GetWindowRect(&rect);
	rect.top += GetSystemMetrics(SM_CYFRAME)+1;						// for small caption use SM_CYDLGFRAME
	rect.bottom = rect.top + GetSystemMetrics(SM_CYSIZE)-4;			// for small caption use SM_CYSMSIZE
	rect.left += GetSystemMetrics(SM_CXFRAME) +				 		// for small caption use SM_CXDLGFRAME
							 GetSystemMetrics(SM_CXSIZE);			// for small caption use SM_CXSMSIZE
	rect.right -= GetSystemMetrics(SM_CXFRAME) - 					// for small caption use SM_CXDLGFRAME
								( 3 * 								// set to number of buttons already in caption + 1
							 GetSystemMetrics(SM_CXSIZE))-1;		// for small caption use SM_CXSMSIZE
	GetWindowRect(rectWnd);
	rect.OffsetRect(-rectWnd.left, -rectWnd.top);

	// draw it
	pDC->BitBlt( rect.left, rect.top, rect.Width(), rect.Height(), &memDC, 0, 0, SRCCOPY );

	memDC.DeleteDC();
	ReleaseDC(pDC);
}