mainfrm.cpp

一个编辑网页的程序

// MainFrm.cpp : implementation of the CMainFrame class
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.

#include "stdafx.h"
#include "HTMLEdit.h"

#include "MainFrm.h"
#include "htmleddoc.h"
#include "htmlEdView.h"
#include "sourceview.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)
	ON_COMMAND_EX(CG_ID_VIEW_FONTDLGBAR, OnBarCheck)
	ON_UPDATE_COMMAND_UI(CG_ID_VIEW_FONTDLGBAR, OnUpdateControlBarMenu)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_CBN_SELCHANGE(ID_FMTBAR_FONTNAME, OnFontNameChange)
	ON_CBN_SELCHANGE(ID_FMTBAR_FONTSIZE, OnFontSizeChange)
	ON_COMMAND(ID_VIEW_EDITINGTOOLBAR, OnViewEditingtoolbar)
	ON_UPDATE_COMMAND_UI(ID_VIEW_EDITINGTOOLBAR, OnUpdateViewEditingtoolbar)
	ON_COMMAND(ID_VIEW_SOURCE, OnViewSource)
	ON_COMMAND(ID_VIEW_WEB, OnViewWeb)
	ON_UPDATE_COMMAND_UI(ID_VIEW_WEB, OnUpdateViewWeb)
	ON_UPDATE_COMMAND_UI(ID_VIEW_SOURCE, OnUpdateViewSource)
	ON_UPDATE_COMMAND_UI(ID_FMTBAR_FONTSIZE, OnUpdateFontSize)
	ON_UPDATE_COMMAND_UI(ID_FMTBAR_FONTNAME, OnUpdateFontName)
	ON_UPDATE_COMMAND_UI (ID_INDICATOR_VIEW, OnUpdatePane)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()
void CMainFrame::OnBlockFmtDropdown( NMHDR * /*pNotifyStruct*/, LRESULT * /*result*/ )
{

}
static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_VIEW,		// view indicator - Web/Source
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

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

CMainFrame::CMainFrame():
	m_pSrcView(NULL),
	m_pWebView(NULL),
	m_dwCurrentView(ID_VIEW_WEB)
{
	// TODO: add member initialization code here
	
}

CMainFrame::~CMainFrame()
{
}
BOOL CreateEditBar();
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 (!CreateEditBar())
	{
		TRACE0("Failed to create edit 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);
	m_wndEditBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);
	DockControlBar(&m_wndEditBar);


	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return TRUE;
}

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

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

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

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers
INT CALLBACK NEnumFontNameProc(LOGFONT *plf, TEXTMETRIC* /*ptm*/, INT /*nFontType*/, LPARAM lParam)
{
	CComboBox* comboBox = (CComboBox*) lParam;

	comboBox->AddString(plf->lfFaceName);

	return TRUE;
}
BOOL CMainFrame::CreateEditBar()
{

	CRect rect;
	const int nDropHeight = 200;

static int nFontSizes[] = 
	{1, 2, 3, 4, 5, 6, 7};


	if (!m_wndEditBar.Create(this) ||
		!m_wndEditBar.LoadToolBar(ID_TOOLBAR_EDITING))
	{
		TRACE0("Failed to create stylebar\n");
		return FALSE;       // fail to create
	}

	CToolBarCtrl& tbCtrl = m_wndEditBar.GetToolBarCtrl();
	tbCtrl.ModifyStyle(0, TBSTYLE_FLAT);

	m_wndEditBar.SetBarStyle(m_wndEditBar.GetBarStyle() |
		CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);

	// Create the font name combo box
	m_wndEditBar.SetButtonInfo(0, ID_FMTBAR_FONTNAME, TBBS_SEPARATOR, 150);

	// Design guide advises 12 pixel gap between combos and buttons
	m_wndEditBar.GetItemRect(0, &rect);
	rect.top = 3;
	rect.bottom = rect.top + nDropHeight;
	if (!m_wndEditBar.m_fontNameCombo.Create(
			CBS_DROPDOWN|WS_VSCROLL|CBS_SORT |WS_VISIBLE|WS_TABSTOP,
			rect, &m_wndEditBar, ID_FMTBAR_FONTNAME))
	{
		TRACE0("Failed to create combo-box\n");
		return FALSE;
	}

	//  Fill the combo box
	::EnumFontFamilies(GetDC()->m_hDC, (LPTSTR) NULL, (FONTENUMPROC)NEnumFontNameProc, (LPARAM)&(m_wndEditBar.m_fontNameCombo));

	// Create the fontsize combo box
	m_wndEditBar.SetButtonInfo(1, ID_FMTBAR_FONTSIZE, TBBS_SEPARATOR, 50);

	m_wndEditBar.GetItemRect(1, &rect);
	rect.top = 3;
	rect.bottom = rect.top + nDropHeight;
	rect.left += 5;
	if (!m_wndEditBar.m_fontSizeCombo.Create(
			CBS_DROPDOWNLIST|WS_VISIBLE|WS_TABSTOP,
			rect, &m_wndEditBar, ID_FMTBAR_FONTSIZE))
	{
		TRACE0("Failed to create combo-box\n");
		return FALSE;
	}

	CString str;
	for (int i = 0; i < sizeof(nFontSizes)/sizeof(int); i++)
	{
		str.Format(_T("%d"), nFontSizes[i]);
		m_wndEditBar.m_fontSizeCombo.AddString(str);
	}

	// set dropdown style on tag format button and font color button
	m_wndEditBar.SetButtonStyle(3, TBSTYLE_DROPDOWN);
	m_wndEditBar.SetButtonStyle(8, TBSTYLE_DROPDOWN);

	m_wndEditBar.m_font.Attach(GetStockObject(DEFAULT_GUI_FONT));
	m_wndEditBar.m_fontNameCombo.SetFont(&m_wndEditBar.m_font);
	m_wndEditBar.m_fontSizeCombo.SetFont(&m_wndEditBar.m_font);

	m_wndEditBar.m_fontNameCombo.SetCurSel(-1);
	m_wndEditBar.m_fontSizeCombo.SetCurSel(-1);

	return TRUE;

}
CComboBox* CMainFrame::GetFontNameCombo() 
{
	return &m_wndEditBar.m_fontNameCombo;
}
CComboBox* CMainFrame::GetFontSizeCombo() 
{
	return &m_wndEditBar.m_fontSizeCombo;
}
void CMainFrame::OnFontNameChange() 
{
	CString szText;
	m_wndEditBar.m_fontNameCombo.GetLBText(
		m_wndEditBar.m_fontNameCombo.GetCurSel(),szText);

	CHTMLEdView *pView = (CHTMLEdView*)GetActiveView();
	ASSERT_VALID(pView);
	pView->SetFontFace(szText);

}

void CMainFrame::OnFontSizeChange() 
{
	CString szText;
	m_wndEditBar.m_fontSizeCombo.GetLBText(
		m_wndEditBar.m_fontSizeCombo.GetCurSel(),szText);

	CHTMLEdView *pView = (CHTMLEdView*)GetActiveView();
	ASSERT_VALID(pView);

	pView->SetFontSize((short)_ttoi(szText));
}

void CMainFrame::OnViewEditingtoolbar() 
{
	CControlBar *pBar = DYNAMIC_DOWNCAST(CControlBar,&m_wndEditBar);
	if(pBar)
	{
		ShowControlBar(pBar, (pBar->GetStyle() & WS_VISIBLE) == 0, FALSE);
	}

}

void CMainFrame::OnUpdateViewEditingtoolbar(CCmdUI* pCmdUI) 
{
	CControlBar *pBar = DYNAMIC_DOWNCAST(CControlBar,&m_wndEditBar);
	if (pBar != NULL)
	{
		pCmdUI->SetCheck((pBar->GetStyle() & WS_VISIBLE) != 0);
		return;
	}
	
}

BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) 
{	
	CDocument *pDoc=NULL;
	POSITION pos;
	BOOL bRet = FALSE;
	//create the source view for this document at this time
	CRuntimeClass *prc = RUNTIME_CLASS(CSourceView);
	ASSERT(prc);
	m_pSrcView = (CSourceView*)prc->CreateObject();
	if(m_pSrcView)
		VERIFY(m_pSrcView->Create(NULL, NULL, AFX_WS_DEFAULT_VIEW,
		CRect(0,0,0,0), this, AFX_IDW_PANE_LAST, NULL));


	//create the doc-template view and save off a pointer to it
	bRet = CFrameWnd::OnCreateClient(lpcs, pContext);
	pDoc = pContext->m_pCurrentDoc;
	if(bRet && pDoc)
	{
		pos = pDoc->GetFirstViewPosition();
		pDoc->AddView(m_pSrcView);
	}
	else
		return FALSE;

	CView *pView = pDoc->GetNextView(pos);
	ASSERT(pView->IsKindOf(RUNTIME_CLASS(CHTMLEdView)));
	if(pView)
	{
		m_pWebView = (CHTMLEdView*) pView;
	}
	else
		return FALSE;

	return bRet;
}

void CMainFrame::SwapView(int nCmdID)
{
	CDocument *pDoc;

	pDoc = GetActiveDocument();
	if(nCmdID == ID_VIEW_SOURCE)
	{
		//swap the view IDs
		m_pWebView->SetDlgCtrlID(AFX_IDW_PANE_LAST);
		m_pSrcView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);

		// show/hide the right view
		m_pWebView->ShowWindow(SW_HIDE);
		m_pSrcView->ShowWindow(SW_SHOW);

		//update the document
		//pDoc->AddView(m_pSrcView);
		//pDoc->RemoveView(m_pWebView);

		//re-layout everything
		SetActiveView(m_pSrcView);
		RecalcLayout();

		m_dwCurrentView = ID_VIEW_SOURCE;

		m_wndStatusBar.SetPaneText(1, _T("SRC VIEW"), TRUE);

		return;
	}
	else if(nCmdID == ID_VIEW_WEB)
	{
		//swap the view IDs
		m_pWebView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
		m_pSrcView->SetDlgCtrlID(AFX_IDW_PANE_LAST);

		// show/hide the right view
		m_pWebView->ShowWindow(SW_SHOW);
		m_pSrcView->ShowWindow(SW_HIDE);

		//update the document
		//pDoc->AddView(m_pWebView);
		//pDoc->RemoveView(m_pSrcView);

		//re-layout everything
		SetActiveView(m_pWebView);
		RecalcLayout();

		m_dwCurrentView = ID_VIEW_WEB;
		m_wndStatusBar.SetPaneText(1, _T("WEB VIEW"), TRUE);
		return;
	}

}
void CMainFrame::SwapView()
{
	//if we are already showing the right view, bail, nothing to do.
	DWORD nCmdID = LOWORD(GetCurrentMessage()->wParam);   
	if((nCmdID == ID_VIEW_SOURCE) && (m_dwCurrentView == ID_VIEW_SOURCE))
		return;
	if((nCmdID == ID_VIEW_WEB) && (m_dwCurrentView == ID_VIEW_WEB))
		return;

	SwapView(nCmdID);
}


void CMainFrame::OnViewSource() 
{
	SwapView();	
}

void CMainFrame::OnViewWeb() 
{
	SwapView();
}

void CMainFrame::OnUpdateViewWeb(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio(m_dwCurrentView==ID_VIEW_WEB);
	
}

void CMainFrame::OnUpdateViewSource(CCmdUI* pCmdUI) 
{
	pCmdUI->SetRadio(m_dwCurrentView==ID_VIEW_SOURCE);
	
}

CView* CMainFrame::GetWebView()
{
	return DYNAMIC_DOWNCAST(CView,m_pWebView);
}

CView* CMainFrame::GetSourceView()
{
	return DYNAMIC_DOWNCAST(CView,m_pSrcView);
}

DWORD CMainFrame::GetCurrentView()
{
	return m_dwCurrentView;
}

void CMainFrame::OnUpdateFontSize(CCmdUI* /*pCmdUI*/)
{
	CComboBox *pCombo = (CComboBox*)GetFontSizeCombo();
	ASSERT_VALID(pCombo);

	//If Source View, don't display the font size combobox
	if(m_dwCurrentView == ID_VIEW_SOURCE)
	{
		pCombo->EnableWindow(FALSE);
		return;
	}
	else
	{
		if(m_pWebView->QueryStatus(IDM_BLOCKFMT) & OLECMDF_ENABLED)
			pCombo->EnableWindow();
		else
			pCombo->EnableWindow(FALSE);
	}
}

void CMainFrame::OnUpdateFontName(CCmdUI* /*pCmdUI*/)
{
	CComboBox *pCombo = (CComboBox*)GetFontNameCombo();
	ASSERT_VALID(pCombo);

	//If Source View, don't display the font name combobox
	if(m_dwCurrentView == ID_VIEW_SOURCE)
	{
		pCombo->EnableWindow(FALSE);
		return;
	}
	else
	{
		if(m_pWebView->QueryStatus(IDM_BLOCKFMT) & OLECMDF_ENABLED)
			pCombo->EnableWindow();
		else
			pCombo->EnableWindow(FALSE);
	}
}

void CMainFrame::OnUpdatePane(CCmdUI *pCmdUI)
{
	pCmdUI->Enable ();
}