mainfrm.cpp

这是MFC经典问答书的光盘内容

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

#include "stdafx.h"
#include "SelectToolbarOptions.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_COMMAND(ID_VIEW_SHAPES_TOOLBAR, OnViewShapesToolbar)
	ON_UPDATE_COMMAND_UI(ID_VIEW_SHAPES_TOOLBAR, OnUpdateViewShapesToolbar)
	ON_COMMAND(ID_CREATE_STANDARD_TOOLBAR, OnCreateStandardToolbar)
	ON_COMMAND(ID_CREATE_SHAPES_TOOLBAR, OnCreateShapesToolbar)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

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

///////////////////////////////////////////////////////////
// EkIsBarVisible

BOOL EkIsBarVisible( CControlBar* pBar )
{
	ASSERT_VALID( pBar );

	return ( ( pBar->GetStyle() & WS_VISIBLE ) != 0 );
}

///////////////////////////////////////////////////////////
// EkDockBarNextTo

void EkDockBarNextTo(	CControlBar* pNewBar,
						CControlBar* pDockedBar,
						UINT nDockBarID = AFX_IDW_DOCKBAR_TOP )
{
	ASSERT_VALID( pDockedBar );
	ASSERT_VALID( pNewBar );

	// 1 - Find the frame where we will dock
	CFrameWnd* pFrame = pDockedBar->GetDockingFrame();

	// 2 - Force MFC to compute the positions
	// of the docked control bar(s)
	pFrame->RecalcLayout();

	// 3 - Compute rectangle of already "docked" bar
	CRect rect;
	pDockedBar->GetWindowRect( &rect );

	// 4 - Offset the rectangle slightly to the bottom right
	// so that the new bar will dock either to the right or
	// to the bottom of the existing bar (depending on the
	// side where this last bar is already docked)
	rect.OffsetRect(1,1);

	// 5 - Dock new bar to specified position
	pFrame->DockControlBar( pNewBar, nDockBarID, &rect );
}

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

CMainFrame::CMainFrame()
{
	m_pToolBar = m_pTBshapes = NULL;
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	// Mainframe docking
	EnableDocking(CBRS_ALIGN_ANY);

	if (!m_wndTBdemo.Create(this, WS_CHILD | WS_VISIBLE | CBRS_TOP, IDR_DEMO_TOOLBAR) ||
		!m_wndTBdemo.LoadToolBar(IDR_DEMO_TOOLBAR))
	{
		TRACE0("Failed to create demo 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
	}

	// Demo toolbar docking
	m_wndTBdemo.SetBarStyle(m_wndTBdemo.GetBarStyle() |
					CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);
	m_wndTBdemo.EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndTBdemo, AFX_IDW_DOCKBAR_LEFT);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	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::OnViewShapesToolbar() 
{
	ShowControlBar( m_pTBshapes, !EkIsBarVisible( m_pTBshapes ), FALSE );
}

void CMainFrame::OnUpdateViewShapesToolbar(CCmdUI* pCmdUI) 
{
	pCmdUI->SetCheck( EkIsBarVisible( m_pTBshapes ) );	
}

/////////////////////////////////////////////////////////////////////////////

BOOL CMainFrame::CreateToolBarWithOptions(	CToolBar* pBar,
											UINT nIDBar,
											UINT nIDResource,
											CDemoDlg* pDlg,
											LPCTSTR lpszName )
{
	ASSERT_VALID( pBar );

	pDlg->m_strName = lpszName;
	pDlg->DoModal();

	// 1 - Create toolbar
	{
		DWORD dwStyle = WS_CHILD | WS_VISIBLE;
		dwStyle |= ( pDlg->m_bCreateTop ? CBRS_TOP : 0 );
		dwStyle |= ( pDlg->m_bCreateBottom ? CBRS_BOTTOM : 0 );
		dwStyle |= ( pDlg->m_bCreateFloating ? CBRS_FLOATING : 0 );

		if( !pBar->Create(this, dwStyle, nIDBar ) ||
			!pBar->LoadToolBar( nIDResource ) )
		{
			TRACE1( "Failed to create '%s' toolbar\n", lpszName );
			return FALSE;      // fail to create
		}
	}

	// 2 - Set additional toolbar style
	pBar->SetBarStyle( pBar->GetBarStyle() |
					CBRS_TOOLTIPS | CBRS_FLYBY | 
					( pDlg->m_bSizeDynamic ? CBRS_SIZE_DYNAMIC : 0 ) );

	// 3 - Enable toolbar docking
	if( pDlg->m_bEnableDocking )
	{
		DWORD dwStyle = 0;
		dwStyle |= ( pDlg->m_bEnableTop ? CBRS_ALIGN_TOP : 0 );
		dwStyle |= ( pDlg->m_bEnableBottom ? CBRS_ALIGN_BOTTOM : 0 );
		dwStyle |= ( pDlg->m_bEnableLeft ? CBRS_ALIGN_LEFT : 0 );
		dwStyle |= ( pDlg->m_bEnableRight ? CBRS_ALIGN_RIGHT : 0 );
		dwStyle |= ( pDlg->m_bEnableAny ? CBRS_ALIGN_ANY : 0 );
		dwStyle |= ( pDlg->m_bEnableFloatMulti ? CBRS_FLOAT_MULTI : 0 );

		pBar->EnableDocking( dwStyle );
	}

	// 4 - Dock toolbar
	if( pDlg->m_bDockControlBar )
	{
		DWORD dwStyle = 0;
		dwStyle |= ( pDlg->m_bDockbarTop ? AFX_IDW_DOCKBAR_TOP : 0 );
		dwStyle |= ( pDlg->m_bDockbarBottom ? AFX_IDW_DOCKBAR_BOTTOM : 0 );
		dwStyle |= ( pDlg->m_bDockbarLeft ? AFX_IDW_DOCKBAR_LEFT : 0 );
		dwStyle |= ( pDlg->m_bDockbarRight ? AFX_IDW_DOCKBAR_RIGHT : 0 );

		DockControlBar( pBar, dwStyle );
	}

	// 5 - Float toolbar
	if( pDlg->m_bFloatControlBar )
	{
		DWORD dwStyle = 0;
		dwStyle |= ( pDlg->m_bFloatTop ? CBRS_ALIGN_TOP : 0 );
		dwStyle |= ( pDlg->m_bFloatBottom ? CBRS_ALIGN_BOTTOM : 0 );
		dwStyle |= ( pDlg->m_bFloatLeft ? CBRS_ALIGN_LEFT : 0 );
		dwStyle |= ( pDlg->m_bFloatRight ? CBRS_ALIGN_RIGHT : 0 );

		CRect rect;
		GetWindowRect( &rect );
		CPoint point( rect.left + 100, rect.top + 100 );

		FloatControlBar( pBar, point, dwStyle );
	}

	return TRUE;
}

void CMainFrame::OnCreateStandardToolbar() 
{
	delete m_pToolBar;	// safe with NULL pointer

	m_pToolBar = new CToolBar;

	RecalcLayout();

	if( !CreateToolBarWithOptions(	m_pToolBar,
									AFX_IDW_TOOLBAR,
									IDR_MAINFRAME,
									&m_dlgStandard,
									_T( "Standard Toolbar" ) ) )
	{
		return;
	}

	RecalcLayout();
}

void CMainFrame::OnCreateShapesToolbar() 
{
	delete m_pTBshapes;		// safe with NULL pointer

	m_pTBshapes = new CToolBar;

	RecalcLayout();

	if( !CreateToolBarWithOptions(	m_pTBshapes,
									IDR_SHAPES,
									IDR_SHAPES,
									&m_dlgShapes,
									_T( "Shapes Toolbar" ) ) )
	{
		return;
	}

	m_pTBshapes->SetWindowText( CString( LPCSTR( IDR_SHAPES ) ) );

	RecalcLayout();
}