mainfrm.cpp

这是书上的代码

// MainFrm.cpp : CMainFrame 类的实现
//

#include "stdafx.h"
#include "Viewer.h"
#include "MainFrm.h"

#include "ViewerView.h"
#include "WebView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	ON_WM_CREATE()
	ON_COMMAND(ID_VIEW_FORMAT, OnViewFormat)
	ON_UPDATE_COMMAND_UI(ID_VIEW_FORMAT, OnUpdateViewFormat)
	ON_WM_CONTEXTMENU()
//	ON_UPDATE_COMMAND_UI(ID_STAT_TXTCOLOR, OnUpdateStatTxtcolor)
//	ON_UPDATE_COMMAND_UI(ID_STAT_TXTFONT, OnUpdateStatTxtfont)
ON_COMMAND(ID_VIEW_TEXT, OnViewText)
ON_UPDATE_COMMAND_UI(ID_VIEW_TEXT, OnUpdateViewText)
ON_COMMAND(ID_VIEW_HTML, OnViewHtml)
ON_UPDATE_COMMAND_UI(ID_VIEW_HTML, OnUpdateViewHtml)
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // 状态行指示器
	ID_STAT_TXTFONT,
	ID_STAT_TXTCOLOR,
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};


// CMainFrame 构造/销毁

CMainFrame::CMainFrame()
: m_bViewFormat(TRUE)
, m_nViewID(1)
, m_pMainView(NULL)
, m_pWebView(NULL)
{
	// TODO：在此添加成员初始化代码
}

CMainFrame::~CMainFrame()
{
}


int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;

	int nRes = m_wndFormatBar.CreateEx(this, TBSTYLE_FLAT, 
		WS_CHILD | WS_VISIBLE | 
		CBRS_TOP | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC,
		CRect( 0, 0, 0, 0),
		AFX_IDW_TOOLBAR + 10);

	if ( !nRes || !m_wndFormatBar.LoadToolBar(IDR_TOOLBAR1))
	{
		TRACE0("未能创建工具栏\n");
		return -1;      // 未能创建
	}
	
	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("未能创建工具栏\n");
		return -1;      // 未能创建
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("未能创建状态栏\n");
		return -1;      // 未能创建
	}
	// TODO: 如果不需要工具栏可停靠，则删除这三行
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	m_wndFormatBar.EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndFormatBar);
	m_wndFormatBar.SetWindowText( "格式" ); // 设置浮动的工具栏窗口标题

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或
	// 样式

	return TRUE;
}


// CMainFrame 诊断

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

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

#endif //_DEBUG


// CMainFrame 消息处理程序


void CMainFrame::OnViewFormat()
{
	m_bViewFormat = !m_bViewFormat;
	ShowControlBar(&m_wndFormatBar, m_bViewFormat, FALSE );	// 显示或隐藏工具栏
}

void CMainFrame::OnUpdateViewFormat(CCmdUI *pCmdUI)
{
	pCmdUI->Enable();
	pCmdUI->SetCheck( m_bViewFormat );		// 设置选中标记
}

void CMainFrame::OnContextMenu(CWnd* pWnd, CPoint point)
{
	int nID = pWnd->GetDlgCtrlID();		// 获取鼠标右击时所在的窗口标识值

	CMenu* mainMenu = AfxGetMainWnd()->GetMenu();	// 获取主菜单
	CMenu* subMenu;    

	if (( nID >= AFX_IDW_DOCKBAR_TOP ) && ( nID <= AFX_IDW_DOCKBAR_FLOAT ))
	// 若右击工具栏
		subMenu = mainMenu->GetSubMenu( 2 );		// 获取“视图”子菜单
	else
		if ( nID == AFX_IDW_PANE_FIRST)				// 右击视图客户区
			subMenu = mainMenu->GetSubMenu( 3 );	// 获取“格式”子菜单

	subMenu->TrackPopupMenu( TPM_LEFTALIGN | TPM_RIGHTBUTTON, 
		point.x, point.y, this );					// 弹出快捷菜单
}

void CMainFrame::SwitchToView1(int nView)
{	
	CView* pOldView = GetActiveView();		// 获取当前活动视图
	CView* pNewView = (CView*)GetDlgItem(nView); 

	if (pNewView == NULL)     
	{                               
		switch(nView)
		{
			case 1:		pNewView = (CView*)new CViewerView;
		 				break;
			case 2:		pNewView = (CView*)new CWebView;
		 				break;
		}
		CCreateContext context;       
		context.m_pCurrentDoc = pOldView->GetDocument();
		pNewView->Create(NULL, NULL, WS_BORDER, 
			CFrameWnd::rectDefault, this, nView, &context);
		pNewView->OnInitialUpdate();       
	}

	SetActiveView(pNewView);			// 设置当前活动视图
	pNewView->ShowWindow(SW_SHOW);		// 显示
	pOldView->ShowWindow(SW_HIDE);		// 隐藏原来的视图
	
	int nID = 2;
	if ( pOldView->GetRuntimeClass() == RUNTIME_CLASS(CViewerView))
		nID = 1;

	pOldView->SetDlgCtrlID(nID);
	::SetWindowLong(pNewView->m_hWnd, GWL_ID, AFX_IDW_PANE_FIRST); 
	RecalcLayout();				
}

void CMainFrame::OnViewText()
{
	if ( m_nViewID != 1 )
	{
		m_nViewID = 1;
		SwitchToView2( m_nViewID );
	}
}

void CMainFrame::OnUpdateViewText(CCmdUI *pCmdUI)
{
	pCmdUI->Enable();
	pCmdUI->SetRadio( m_nViewID == 1 );
}

void CMainFrame::OnViewHtml()
{
	if ( m_nViewID != 2 )
	{
		m_nViewID = 2;
		SwitchToView2( m_nViewID );
	}
}

void CMainFrame::OnUpdateViewHtml(CCmdUI *pCmdUI)
{
	pCmdUI->Enable();
	pCmdUI->SetRadio( m_nViewID == 2 );
}

void CMainFrame::SwitchToView2(int nView)
{
	CView *pViewAdd, *pViewRemove;
	CDocument* pDoc = GetActiveDocument();

	if ( nView == 2 )		// 切换到CWebView时
	{
		if ( m_pWebView == NULL)
		{
			m_pMainView = (CViewerView*)GetActiveView();
			m_pWebView = new CWebView;
			m_pWebView->Create(NULL, NULL, AFX_WS_DEFAULT_VIEW,
				rectDefault, this, AFX_IDW_PANE_FIRST + 1, NULL );
			m_pWebView->strFileName = pDoc->GetPathName();
			m_pWebView->OnInitialUpdate();
		}
		pViewAdd = m_pWebView;
		pViewRemove = m_pMainView;
	}
	else					// 切换到CViewerView时
	{
		pViewAdd = m_pMainView;
		pViewRemove = m_pWebView;
	}     
	int nID = pViewAdd->GetDlgCtrlID();
	pViewAdd->SetDlgCtrlID( AFX_IDW_PANE_FIRST );
	pViewRemove->SetDlgCtrlID( nID );
	pViewAdd->ShowWindow( SW_SHOW );
	pViewRemove->ShowWindow( SW_HIDE );
	pDoc->AddView( pViewAdd );
	pDoc->RemoveView( pViewRemove );
	SetActiveView( pViewAdd );
	RecalcLayout();
}