mainfrm.h

是WTL的开发包,直接包括在路径中,最好放在VC目录中,要更新的包请到官方网站去下载

					break;
				}
			}
			// open file
			if(DoFileOpen(szFile, lpstrFileName))
				m_mru.MoveToTop(wID);
			else
				m_mru.RemoveFromList(wID);
			m_mru.WriteToRegistry(lpcstrMTPadRegKey);
		}
		else
		{
			::MessageBeep(MB_ICONERROR);
		}

		return 0;
	}

	LRESULT OnFileNewWindow(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		::PostThreadMessage(_Module.m_dwMainThreadID, WM_USER, 0, 0L);
		return 0;
	}

	LRESULT OnFileExit(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		PostMessage(WM_CLOSE);
		return 0;
	}

	LRESULT OnViewToolBar(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		static BOOL bNew = TRUE;	// initially visible
		bNew = !bNew;
		::SendMessage(m_hWndToolBar, RB_SHOWBAND, 1, bNew); // toolbar is band #1
		UISetCheck(ID_VIEW_TOOLBAR, bNew);
		UpdateLayout();
		return 0;
	}

	LRESULT OnViewStatusBar(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		BOOL bNew = !::IsWindowVisible(m_hWndStatusBar);
		::ShowWindow(m_hWndStatusBar, bNew ? SW_SHOWNOACTIVATE : SW_HIDE);
		UISetCheck(ID_VIEW_STATUS_BAR, bNew);
		UpdateLayout();
		return 0;
	}

	LRESULT OnAppAbout(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		CAboutDlg dlg;
		dlg.DoModal();
		return 0;
	}

	LRESULT OnContextMenu(UINT /*uMsg*/, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
	{
		if((HWND)wParam == m_view.m_hWnd)
		{
			CMenu menuContext;
			menuContext.LoadMenu(IDR_CONTEXTMENU);
			CMenuHandle menuPopup(menuContext.GetSubMenu(0));
			m_CmdBar.TrackPopupMenu(menuPopup, TPM_LEFTALIGN | TPM_RIGHTBUTTON, LOWORD(lParam), HIWORD(lParam));
		}
		else
			bHandled = FALSE;
		return 0;
	}

	void UpdateUIAll()
	{
		BOOL bModified = m_view.GetModify();
		if(bModified != m_bModified)
		{
			m_bModified = bModified;
			UpdateTitle();
		}

		UIEnable(ID_EDIT_UNDO, m_view.CanUndo());
		UIEnable(ID_EDIT_PASTE, m_view.CanPaste(CF_TEXT));

		BOOL bSel = (m_view.GetSelectionType() != SEL_EMPTY);

		UIEnable(ID_EDIT_CUT, bSel);
		UIEnable(ID_EDIT_COPY, bSel);
		UIEnable(ID_EDIT_CLEAR, bSel);

		BOOL bNotEmpty = (m_view.GetWindowTextLength() > 0);
		UIEnable(ID_EDIT_SELECT_ALL, bNotEmpty);
		UIEnable(ID_EDIT_FIND, bNotEmpty);
		UIEnable(ID_EDIT_REPEAT, bNotEmpty);
		UIEnable(ID_EDIT_REPLACE, bNotEmpty);

		UISetCheck(ID_EDIT_WORD_WRAP, m_view.m_bWordWrap);

		if(prev.IsWindow() && (prev.GetStyle() & WS_VISIBLE) != 0)
		{
			UIEnable(ID_PP_BACK, (prev.m_nCurPage > prev.m_nMinPage));
			UIEnable(ID_PP_FORWARD, prev.m_nCurPage < prev.m_nMaxPage);
		}

		UIUpdateToolBar();
	}

//print job info callback
	virtual bool IsValidPage(UINT /*nPage*/)
	{
		return true;
	}

	virtual bool PrintPage(UINT nPage, HDC hDC)
	{
		if (nPage >= (UINT)m_arrPages.GetSize())
			return false;

		RECT rcPage;
		rcPage.left = rcPage.top = 0;
		rcPage.bottom = GetDeviceCaps(hDC, PHYSICALHEIGHT);
		rcPage.right = GetDeviceCaps(hDC, PHYSICALWIDTH);

		rcPage.right = MulDiv(rcPage.right, 1440, GetDeviceCaps(hDC, LOGPIXELSX));
		rcPage.bottom = MulDiv(rcPage.bottom, 1440, GetDeviceCaps(hDC, LOGPIXELSY));

		RECT rcOutput = rcPage;
		//convert from 1/1000" to twips
		rcOutput.left += MulDiv(m_rcMargin.left, 1440, 1000);
		rcOutput.right -= MulDiv(m_rcMargin.right, 1440, 1000);
		rcOutput.top += MulDiv(m_rcMargin.top, 1440, 1000);
		rcOutput.bottom -= MulDiv(m_rcMargin.bottom, 1440, 1000);

		
		FORMATRANGE fr;
		fr.hdc = hDC;
		fr.hdcTarget = hDC;
		fr.rc = rcOutput;
		fr.rcPage = rcPage;
		fr.chrg.cpMin = 0;
		fr.chrg.cpMax = -1;
		fr.chrg.cpMin = m_arrPages[nPage];

		// We have to adjust the origin because 0,0 is not at the corner of the paper
		// but is at the corner of the printable region
		int nOffsetX = GetDeviceCaps(hDC, PHYSICALOFFSETX);
		int nOffsetY = GetDeviceCaps(hDC, PHYSICALOFFSETY);
		SetViewportOrgEx(hDC, -nOffsetX, -nOffsetY, NULL);
		m_view.FormatRange(fr, TRUE);
		m_view.DisplayBand(&rcOutput);

		//Cleanup cache in richedit
		m_view.FormatRange(NULL, FALSE);
		return true;
	}

	bool LayoutPages()
	{
		CDC dc = printer.CreatePrinterDC(devmode);
		if(dc.IsNull())
			return false;

		RECT rcPage;
		rcPage.left = rcPage.top = 0;
		rcPage.bottom = GetDeviceCaps(dc, PHYSICALHEIGHT);
		rcPage.right = GetDeviceCaps(dc, PHYSICALWIDTH);
		// We have to adjust the origin because 0,0 is not at the corner of the paper
		// but is at the corner of the printable region
		int nOffsetX = dc.GetDeviceCaps(PHYSICALOFFSETX);
		int nOffsetY = dc.GetDeviceCaps(PHYSICALOFFSETY);
		dc.SetViewportOrg(-nOffsetX, -nOffsetY);
		rcPage.right = MulDiv(rcPage.right, 1440, GetDeviceCaps(dc, LOGPIXELSX));
		rcPage.bottom = MulDiv(rcPage.bottom, 1440, GetDeviceCaps(dc, LOGPIXELSY));

		RECT rcOutput = rcPage;
		//convert from 1/1000" to twips
		rcOutput.left += MulDiv(m_rcMargin.left, 1440, 1000);
		rcOutput.right -= MulDiv(m_rcMargin.right, 1440, 1000);
		rcOutput.top += MulDiv(m_rcMargin.top, 1440, 1000);
		rcOutput.bottom -= MulDiv(m_rcMargin.bottom, 1440, 1000);
		
		FORMATRANGE fr;
		fr.hdc = dc;
		fr.hdcTarget = dc;
		fr.rc = rcOutput;
		fr.rcPage = rcPage;
		fr.chrg.cpMin = 0;
		fr.chrg.cpMax = -1;

		LONG n = (LONG)m_view.GetTextLength();
		m_arrPages.RemoveAll();
		while (1)
		{
			m_arrPages.Add(fr.chrg.cpMin);
			LONG lRet = m_view.FormatRange(fr, FALSE);
			if((lRet - fr.chrg.cpMin) == -1)
			{
				m_arrPages.RemoveAt(m_arrPages.GetSize()-1);
				break;
			}
			else
				fr.chrg.cpMin = lRet;
			if (fr.chrg.cpMin >= n)
				break;
		}

		m_view.FormatRange(NULL, FALSE);

		return true;
	}

	LRESULT OnFilePrint(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		if(!LayoutPages())
		{
			MessageBox(_T("Print operation failed"), _T("MTPad"), MB_ICONERROR | MB_OK);
			return 0;
		}

		CPrintDialog dlg(FALSE);
		dlg.m_pd.hDevMode = devmode.CopyToHDEVMODE();
		dlg.m_pd.hDevNames = printer.CopyToHDEVNAMES();
		dlg.m_pd.nMinPage = 1;
		dlg.m_pd.nMaxPage = (WORD)m_arrPages.GetSize();
		dlg.m_pd.nFromPage = 1;
		dlg.m_pd.nToPage = (WORD)m_arrPages.GetSize();
		dlg.m_pd.Flags &= ~PD_NOPAGENUMS;

		if (dlg.DoModal() == IDOK)
		{
			devmode.CopyFromHDEVMODE(dlg.m_pd.hDevMode);
			printer.ClosePrinter();
			printer.OpenPrinter(dlg.m_pd.hDevNames, devmode.m_pDevMode);

			CPrintJob job;
			int nMin=0;
			int nMax = m_arrPages.GetSize()-1;
			if (dlg.m_pd.Flags | PD_PAGENUMS)
			{
				nMin = dlg.m_pd.nFromPage-1;
				nMax = dlg.m_pd.nToPage-1;
			}

			job.StartPrintJob(false, printer, devmode.m_pDevMode, this, _T("MTPad Document"), nMin, nMax);
		}

		GlobalFree(dlg.m_pd.hDevMode);
		GlobalFree(dlg.m_pd.hDevNames);

		return 0;
	}

	LRESULT OnFilePrintPreview(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		bool bRet = LayoutPages();
		if(!bRet)
		{
			MessageBox(_T("Print preview operation failed"), _T("MTPad"), MB_ICONERROR | MB_OK);
			return 0;
		}

		prev.SetPrintPreviewInfo(printer, devmode.m_pDevMode, this, 0, m_arrPages.GetSize() - 1);
		prev.SetPage(0);
		RECT rcPos;
		GetClientRect(&rcPos);
		prev.Create(m_hWnd, rcPos);
		prev.ShowWindow(SW_SHOW);
		prev.SetWindowPos(HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_SHOWWINDOW);

		::ShowWindow(m_hWndClient, SW_HIDE);
		m_hWndOldClient = m_hWndClient;
		m_hWndClient = prev;
		::SendMessage(m_hWndToolBar, RB_SHOWBAND, 1, FALSE);	// toolbar is band #1
		::SendMessage(m_hWndToolBar, RB_SHOWBAND, 2, TRUE); // print preview toolbar is band #2
		UpdateLayout();
		return 0;
	}

	LRESULT OnFilePageSetup(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		CPageSetupDialog dlg;
		dlg.m_psd.hDevMode = devmode.CopyToHDEVMODE();
		dlg.m_psd.hDevNames = printer.CopyToHDEVNAMES();
		dlg.m_psd.rtMargin = m_rcMargin;

		if (dlg.DoModal() == IDOK)
		{
			devmode.CopyFromHDEVMODE(dlg.m_psd.hDevMode);
			printer.ClosePrinter();
			printer.OpenPrinter(dlg.m_psd.hDevNames, devmode.m_pDevMode);
			m_rcMargin = dlg.m_psd.rtMargin;
		}

		GlobalFree(dlg.m_psd.hDevMode);
		GlobalFree(dlg.m_psd.hDevNames);

		return 0;
	}

	LRESULT OnPrintPreviewClose(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		prev.DestroyWindow();
		m_hWndClient = m_hWndOldClient;
		::ShowWindow(m_hWndClient, SW_SHOW);
		::SendMessage(m_hWndToolBar, RB_SHOWBAND, 1, TRUE); // toolbar is band #1
		::SendMessage(m_hWndToolBar, RB_SHOWBAND, 2, FALSE);	// print preview toolbar is band #2
		UpdateLayout();
		return 0;
	}

	LRESULT OnPrintPreviewForward(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		prev.NextPage();
		return 0;
	}
	
	LRESULT OnPrintPreviewBack(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		prev.PrevPage();
		return 0;
	}
};