wordpvw.cpp

VC++写的仿Windows系统的写字板程序

// wordpvw.cpp : implementation of the CWordPadView class
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1998 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 "wordpad.h"
#include "cntritem.h"
#include "srvritem.h"
#include "wordpdoc.h"
#include "wordpvw.h"
#include "formatta.h"
#include "datedial.h"
#include "formatpa.h"
#include "formatba.h"
#include "ruler.h"
#include "strings.h"
#include "colorlis.h"
#include "pageset.h"
#include <penwin.h>

#pragma warning(disable : 4996)	// disable bogus deprecation warning

extern CLIPFORMAT cfEmbeddedObject;
extern CLIPFORMAT cfRTO;

#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif

BOOL CCharFormat::operator==(CCharFormat& cf)
{
	return
	dwMask == cf.dwMask
	&& dwEffects == cf.dwEffects
	&& yHeight == cf.yHeight
	&& yOffset == cf.yOffset
	&& crTextColor == cf.crTextColor
	&& bPitchAndFamily == cf.bPitchAndFamily
#if _MFC_VER > 0x700
	&& (_tcscmp(szFaceName, cf.szFaceName) == 0);
#else
	&& (lstrcmpA(szFaceName, cf.szFaceName) == 0);
#endif
}

BOOL CParaFormat::operator==(PARAFORMAT& pf)
{
	if(
		dwMask != pf.dwMask
		|| wNumbering != pf.wNumbering
		|| wReserved != pf.wReserved
		|| dxStartIndent != pf.dxStartIndent
		|| dxRightIndent != pf.dxRightIndent
		|| dxOffset != pf.dxOffset
		|| cTabCount != pf.cTabCount
		)
	{
		return FALSE;
	}
	for (int i=0;i<pf.cTabCount;i++)
	{
		if (rgxTabs[i] != pf.rgxTabs[i])
			return FALSE;
	}
	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CWordPadView

IMPLEMENT_DYNCREATE(CWordPadView, CRichEditView)

//WM_SETTINGCHANGE -- default printer might have changed
//WM_FONTCHANGE -- pool of fonts changed
//WM_DEVMODECHANGE -- printer settings changes

BEGIN_MESSAGE_MAP(CWordPadView, CRichEditView)
	ON_COMMAND(ID_CANCEL_EDIT_CNTR, OnCancelEditCntr)
	ON_COMMAND(ID_CANCEL_EDIT_SRVR, OnCancelEditSrvr)
	//{{AFX_MSG_MAP(CWordPadView)
	ON_COMMAND(ID_PAGE_SETUP, OnPageSetup)
	ON_COMMAND(ID_CHAR_BOLD, OnCharBold)
	ON_UPDATE_COMMAND_UI(ID_CHAR_BOLD, OnUpdateCharBold)
	ON_COMMAND(ID_CHAR_ITALIC, OnCharItalic)
	ON_UPDATE_COMMAND_UI(ID_CHAR_ITALIC, OnUpdateCharItalic)
	ON_COMMAND(ID_CHAR_UNDERLINE, OnCharUnderline)
	ON_UPDATE_COMMAND_UI(ID_CHAR_UNDERLINE, OnUpdateCharUnderline)
	ON_COMMAND(ID_PARA_CENTER, OnParaCenter)
	ON_UPDATE_COMMAND_UI(ID_PARA_CENTER, OnUpdateParaCenter)
	ON_COMMAND(ID_PARA_LEFT, OnParaLeft)
	ON_UPDATE_COMMAND_UI(ID_PARA_LEFT, OnUpdateParaLeft)
	ON_COMMAND(ID_PARA_RIGHT, OnParaRight)
	ON_UPDATE_COMMAND_UI(ID_PARA_RIGHT, OnUpdateParaRight)
	ON_WM_CREATE()
	ON_COMMAND(ID_INSERT_DATE_TIME, OnInsertDateTime)
	ON_COMMAND(ID_FORMAT_PARAGRAPH, OnFormatParagraph)
	ON_COMMAND(ID_FORMAT_TABS, OnFormatTabs)
	ON_COMMAND(ID_COLOR16, OnColorDefault)
	ON_WM_TIMER()
	ON_WM_DESTROY()
	ON_WM_MEASUREITEM()
	ON_COMMAND(ID_PEN_BACKSPACE, OnPenBackspace)
	ON_COMMAND(ID_PEN_NEWLINE, OnPenNewline)
	ON_COMMAND(ID_PEN_PERIOD, OnPenPeriod)
	ON_COMMAND(ID_PEN_SPACE, OnPenSpace)
	ON_WM_SIZE()
	ON_WM_KEYDOWN()
	ON_COMMAND(ID_FILE_PRINT, OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, OnFilePrint)
	ON_WM_DROPFILES()
	ON_COMMAND(ID_PEN_LENS, OnPenLens)
	ON_COMMAND(ID_PEN_TAB, OnPenTab)
	ON_WM_PALETTECHANGED()
	ON_WM_QUERYNEWPALETTE()
	ON_WM_SETTINGCHANGE()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_INSERT_BULLET, CRichEditView::OnBullet)
	ON_UPDATE_COMMAND_UI(ID_INSERT_BULLET, CRichEditView::OnUpdateBullet)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CRichEditView::OnFilePrintPreview)
	ON_COMMAND_RANGE(ID_COLOR0, ID_COLOR16, OnColorPick)
	ON_EN_CHANGE(AFX_IDW_PANE_FIRST, OnEditChange)
	ON_WM_MOUSEACTIVATE()
	ON_REGISTERED_MESSAGE(CWordPadApp::m_nPrinterChangedMsg, OnPrinterChangedMsg)
	ON_NOTIFY(FN_GETFORMAT, ID_VIEW_FORMATBAR, OnGetCharFormat)
	ON_NOTIFY(FN_SETFORMAT, ID_VIEW_FORMATBAR, OnSetCharFormat)
	ON_NOTIFY(NM_SETFOCUS, ID_VIEW_FORMATBAR, OnBarSetFocus)
	ON_NOTIFY(NM_KILLFOCUS, ID_VIEW_FORMATBAR, OnBarKillFocus)
	ON_NOTIFY(NM_RETURN, ID_VIEW_FORMATBAR, OnBarReturn)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CWordPadView construction/destruction

CWordPadView::CWordPadView()
{
	m_bSyncCharFormat = m_bSyncParaFormat = TRUE;
	m_uTimerID = 0;
	m_bDelayUpdateItems = FALSE;
	m_bOnBar = FALSE;
	m_bInPrint = FALSE;
	m_nPasteType = 0;
	m_rectMargin = theApp.m_rectPageMargin;
}

BOOL CWordPadView::PreCreateWindow(CREATESTRUCT& cs)
{
	BOOL bRes = CRichEditView::PreCreateWindow(cs);
	cs.style |= ES_SELECTIONBAR;
	return bRes;
}

/////////////////////////////////////////////////////////////////////////////
// CWordPadView attributes

BOOL CWordPadView::IsFormatText()
{
	// this function checks to see if any formatting is not default text
	BOOL bRes = FALSE;
	CHARRANGE cr;
	CCharFormat cf;
	CParaFormat pf;
	GetRichEditCtrl().GetSel(cr);
	GetRichEditCtrl().HideSelection(TRUE, FALSE);
	GetRichEditCtrl().SetSel(0,-1);

	if (!(GetRichEditCtrl().GetSelectionType() & (SEL_OBJECT|SEL_MULTIOBJECT)))
	{
		GetRichEditCtrl().GetSelectionCharFormat(cf);
		if (cf == m_defTextCharFormat)
		{
			GetRichEditCtrl().GetParaFormat(pf);
			if (pf == m_defParaFormat) //compared using CParaFormat::operator==
				bRes = TRUE;
		}
	}

	GetRichEditCtrl().SetSel(cr);
	GetRichEditCtrl().HideSelection(FALSE, FALSE);
	return bRes;
}

HMENU CWordPadView::GetContextMenu(WORD, LPOLEOBJECT, CHARRANGE* )
{
	CRichEditCntrItem* pItem = GetSelectedItem();
	if (pItem == NULL || !pItem->IsInPlaceActive())
	{
		CMenu menuText;
		menuText.LoadMenu(IDR_TEXT_POPUP);
		CMenu* pMenuPopup = menuText.GetSubMenu(0);
		menuText.RemoveMenu(0, MF_BYPOSITION);
		if (!GetSystemMetrics(SM_PENWINDOWS))
		{
			//delete pen specific stuff
			// remove Insert Keystrokes
			pMenuPopup->DeleteMenu(ID_PEN_LENS, MF_BYCOMMAND);
			int nIndex = pMenuPopup->GetMenuItemCount()-1; //index of last item
			// remove Edit Text...
			pMenuPopup->DeleteMenu(nIndex, MF_BYPOSITION);
			// remove separator
			pMenuPopup->DeleteMenu(nIndex-1, MF_BYPOSITION);
		}
		return pMenuPopup->Detach();
	}
	return NULL;
}

/////////////////////////////////////////////////////////////////////////////
// CWordPadView operations

void CWordPadView::WrapChanged()
{
	CWaitCursor wait;
	CFrameWnd* pFrameWnd = GetParentFrame();
	ASSERT(pFrameWnd != NULL);
	pFrameWnd->SetMessageText(IDS_FORMATTING);
	CWnd* pBarWnd = pFrameWnd->GetMessageBar();
	if (pBarWnd != NULL)
		pBarWnd->UpdateWindow();

	CRichEditView::WrapChanged();

	pFrameWnd->SetMessageText(AFX_IDS_IDLEMESSAGE);
	if (pBarWnd != NULL)
		pBarWnd->UpdateWindow();
}

void CWordPadView::SetUpdateTimer()
{
	if (m_uTimerID != 0) // if outstanding timer kill it
		KillTimer(m_uTimerID);
	m_uTimerID = SetTimer(1, 1000, NULL); //set a timer for 1000 milliseconds
	if (m_uTimerID == 0) // no timer available so force update now
		GetDocument()->UpdateAllItems(NULL);
	else
		m_bDelayUpdateItems = TRUE;
}

void CWordPadView::DeleteContents()
{
	ASSERT_VALID(this);
	ASSERT(m_hWnd != NULL);
	CRichEditView::DeleteContents();
	SetDefaultFont(IsTextType(GetDocument()->m_nNewDocType));
}

void CWordPadView::SetDefaultFont(BOOL bText)
{
	ASSERT_VALID(this);
	ASSERT(m_hWnd != NULL);
	m_bSyncCharFormat = m_bSyncParaFormat = TRUE;
	CHARFORMAT* pCharFormat = bText ? &m_defTextCharFormat : &m_defCharFormat;
	// set the default character format -- the FALSE makes it the default
	GetRichEditCtrl().SetSel(0,-1);
	GetRichEditCtrl().SetDefaultCharFormat(*pCharFormat);
	GetRichEditCtrl().SetSelectionCharFormat(*pCharFormat);

	GetRichEditCtrl().SetParaFormat(m_defParaFormat);

	GetRichEditCtrl().SetSel(0,0);
	GetRichEditCtrl().EmptyUndoBuffer();
	GetRichEditCtrl().SetModify(FALSE);
	ASSERT_VALID(this);
}

/////////////////////////////////////////////////////////////////////////////
// CWordPadView drawing

/////////////////////////////////////////////////////////////////////////////
// CWordPadView printing

void CWordPadView::OnPrint(CDC* pDC, CPrintInfo* pInfo)
{
	CRichEditView::OnPrint(pDC, pInfo);
	if (pInfo != NULL && pInfo->m_bPreview)
		DrawMargins(pDC);
}

void CWordPadView::DrawMargins(CDC* pDC)
{
	if (pDC->m_hAttribDC != NULL)
	{
		CRect rect;
		rect.left = m_rectMargin.left;
		rect.right = m_sizePaper.cx - m_rectMargin.right;
		rect.top = m_rectMargin.top;
		rect.bottom = m_sizePaper.cy - m_rectMargin.bottom;
		//rect in twips
		int logx = ::GetDeviceCaps(pDC->m_hDC, LOGPIXELSX);
		int logy = ::GetDeviceCaps(pDC->m_hDC, LOGPIXELSY);
		rect.left = MulDiv(rect.left, logx, 1440);
		rect.right = MulDiv(rect.right, logx, 1440);
		rect.top = MulDiv(rect.top, logy, 1440);
		rect.bottom = MulDiv(rect.bottom, logy, 1440);
		CPen pen(PS_DOT, 0, pDC->GetTextColor());
		CPen* ppen = pDC->SelectObject(&pen);
		pDC->MoveTo(0, rect.top);
		pDC->LineTo(10000, rect.top);
		pDC->MoveTo(rect.left, 0);
		pDC->LineTo(rect.left, 10000);
		pDC->MoveTo(0, rect.bottom);
		pDC->LineTo(10000, rect.bottom);
		pDC->MoveTo(rect.right, 0);
		pDC->LineTo(rect.right, 10000);
		pDC->SelectObject(ppen);
	}
}

BOOL CWordPadView::OnPreparePrinting(CPrintInfo* pInfo)
{
	return DoPreparePrinting(pInfo);
}

/////////////////////////////////////////////////////////////////////////////
// OLE Client support and commands

inline int roundleast(int n)
{
	int mod = n%10;
	n -= mod;
	if (mod >= 5)
		n += 10;
	else if (mod <= -5)
		n -= 10;
	return n;
}

static void RoundRect(LPRECT r1)
{
	r1->left = roundleast(r1->left);
	r1->right = roundleast(r1->right);
	r1->top = roundleast(r1->top);
	r1->bottom = roundleast(r1->bottom);
}

static void MulDivRect(LPRECT r1, LPRECT r2, int num, int div)
{
	r1->left = MulDiv(r2->left, num, div);
	r1->top = MulDiv(r2->top, num, div);
	r1->right = MulDiv(r2->right, num, div);
	r1->bottom = MulDiv(r2->bottom, num, div);
}

void CWordPadView::OnPageSetup()
{
	CPageSetupDialog dlg;
	PAGESETUPDLG& psd = dlg.m_psd;
	BOOL bMetric = theApp.GetUnits() == 1; //centimeters
	psd.Flags |= PSD_MARGINS | (bMetric ? PSD_INHUNDREDTHSOFMILLIMETERS :
		PSD_INTHOUSANDTHSOFINCHES);
	int nUnitsPerInch = bMetric ? 2540 : 1000;
	MulDivRect(&psd.rtMargin, m_rectMargin, nUnitsPerInch, 1440);
	RoundRect(&psd.rtMargin);
	// get the current device from the app
	PRINTDLG pd;
	pd.hDevNames = NULL;
	pd.hDevMode = NULL;
	theApp.GetPrinterDeviceDefaults(&pd);
	psd.hDevNames = pd.hDevNames;
	psd.hDevMode = pd.hDevMode;
	if (dlg.DoModal() == IDOK)
	{
		RoundRect(&psd.rtMargin);
		MulDivRect(m_rectMargin, &psd.rtMargin, 1440, nUnitsPerInch);
		theApp.m_rectPageMargin = m_rectMargin;
		theApp.SelectPrinter(psd.hDevNames, psd.hDevMode);
		theApp.NotifyPrinterChanged();
	}
	// PageSetupDlg failed
	if (CommDlgExtendedError() != 0)
	{
		CPageSetupDlg dlg;
		dlg.m_nBottomMargin = m_rectMargin.bottom;
		dlg.m_nLeftMargin = m_rectMargin.left;
		dlg.m_nRightMargin = m_rectMargin.right;
		dlg.m_nTopMargin = m_rectMargin.top;
		if (dlg.DoModal() == IDOK)
		{
			m_rectMargin.SetRect(dlg.m_nLeftMargin, dlg.m_nTopMargin,
				dlg.m_nRightMargin, dlg.m_nBottomMargin);
			// m_page will be changed at this point
			theApp.m_rectPageMargin = m_rectMargin;
			theApp.NotifyPrinterChanged();
		}
	}
}

/////////////////////////////////////////////////////////////////////////////
// OLE Server support

// The following command handler provides the standard keyboard
//  user interface to cancel an in-place editing session.  Here,
//  the server (not the container) causes the deactivation.
void CWordPadView::OnCancelEditSrvr()
{
	GetDocument()->OnDeactivateUI(FALSE);
}

/////////////////////////////////////////////////////////////////////////////
// CWordPadView diagnostics

#ifdef _DEBUG
void CWordPadView::AssertValid() const
{
	CRichEditView::AssertValid();
}

void CWordPadView::Dump(CDumpContext& dc) const
{
	CRichEditView::Dump(dc);
}

CWordPadDoc* CWordPadView::GetDocument() // non-debug version is inline
{
	return (CWordPadDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CWordPadView message helpers

/////////////////////////////////////////////////////////////////////////////
// CWordPadView message handlers

int CWordPadView::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CRichEditView::OnCreate(lpCreateStruct) == -1)
		return -1;
	theApp.m_listPrinterNotify.AddTail(m_hWnd);

	if (theApp.m_bWordSel)
		GetRichEditCtrl().SetOptions(ECOOP_OR, ECO_AUTOWORDSELECTION);
	else
		GetRichEditCtrl().SetOptions(ECOOP_AND, ~(DWORD)ECO_AUTOWORDSELECTION);
//  GetRichEditCtrl().SetOptions(ECOOP_OR, ECO_SELECTIONBAR);

	GetDefaultFont(m_defTextCharFormat, IDS_DEFAULTTEXTFONT);
	GetDefaultFont(m_defCharFormat, IDS_DEFAULTFONT);