prposterdatafile.h

虚拟打印机

/*
 *
 * prposterdatafile.h
 * 
   Copyright (C) 2006 Michael H. Overlin

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   
   Contact at [e-mail]
 *
 */

#ifndef PRPOSTERDATAFILE_H
#define PRPOSTERDATAFILE_H

#include "..\lib\myfilemap.h"
#include "..\lib\prdatasource.h"
#include "..\lib\renderpages.h"

#include <vector>

struct PRPosterDataFileRef;
typedef PRPosterDataFileRef *PRPosterDataFileHandle;

class PRPosterDataFile : public PRDataSource {
public:
	PRPosterDataFile();
	// DEBUG/FIX DOES THE BASE CLASS NEED TO HAVE A DESTRUCTOR FOR THIS TO BE SAFE??
	virtual ~PRPosterDataFile();

	// ****** PRDataSource INTERFACE ******
	virtual ::PrintPreviewDataSource GetDataSourceType(void) const { return ::PrintPreviewDataSources::ePosterDataFile; }

	virtual BOOL Open(const tstring& tstrFileName) ;
	virtual void Close(void) ;
	virtual BOOL IsOpen(void) const ;

	virtual BOOL GetAutoRotate(IN uint uiPage, OUT BOOL& bAutoRotate) const ;
	virtual BOOL GetEvenPageMargins(IN uint uiPage, OUT BOOL& bEvenPageMargins) const ;
	virtual const tstring & GetJobName(void) const ;
	virtual BOOL GetLandscape(IN uint uiPage, OUT BOOL& bLandscape) const ;
	//virtual BOOL GetNoCutGuidelines(IN uint uiPage, OUT BOOL& bNoCutGuidelines) const ;
	virtual uint GetPageCount(void) const ;
	// CALLER IS RESPONSIBLE FOR DELETING RETURNED HANDLE
	virtual HENHMETAFILE GetPageEMF(uint uiPage) const ;
	virtual BOOL GetResizedRenderSpec(IN uint uiPage, OUT ::RenderSpec& rsResized) const ;
	virtual BOOL GetResizedSourceSpec(IN uint uiPage, OUT ::SourceSpec& ssResized) const ;
	virtual BOOL GetSourcePageSpec(IN uint uiPage, OUT ::PageSpec& ps) const ;
	// CALLER IS RESPONSIBLE FOR FREEING RETURNED MALLOC'D BUFFER
	virtual PDEVMODE GetTargetPrinter(IN uint uiPage, OUT tstring& tstrTargetPrinterName) const ;

	// ****** END OF PRDataSource INTERFACE ******

	static PRPosterDataFileHandle TheirWritePosterDataFileHeader(
		IN const tstring& tstrFileName, 
		IN const tstring& tstrJobName,
		IN uint nPageCount
		) ;
	static BOOL TheirWritePosterDataFilePage(
		PRPosterDataFileHandle h,
		IN const tstring& tstrTargetPrinterName,
		IN PCDEVMODE pdmTargetPrinter,
		IN BOOL bLandscape,
		//IN BOOL bNoCutGuides,
		IN BOOL bAutoRotate,
		IN BOOL bEvenPageMargins,
		IN const ::PageSpec& psOriginal,
		//IN const ::RECTD& rdSourceSelection_Inches,
		IN const ::SourceSpec& ssResized, 
		IN const ::RenderSpec& rsResized,
		IN HENHMETAFILE hMeta
	) ;
	static BOOL TheirClosePosterDataFile(PRPosterDataFileHandle h, BOOL bSucess);

private:
	struct SimplePageData {
		DWORD dwCbMetaFile;
		BOOL bHasTargetPrinterDM;
		BOOL bLandscape;
		//BOOL bNoCutGuides;
		BOOL bAutoRotate;
		BOOL bEvenPageMargins;
		::PageSpec psOriginal;
		::SourceSpec ssResized;
		::RenderSpec rsResized;
	};

	struct PageInfo {
		PageInfo(void) { pdmTargetPrinter = NULL; }
		~PageInfo(void) { if (pdmTargetPrinter != NULL) { free(pdmTargetPrinter); } }

		SimplePageData spd;
		DWORD dwEMFOffset;
		tstring tstrTargetPrinterName;
		PDEVMODE pdmTargetPrinter;
	};

	tstring m_tstrJobName;
	std::vector<PageInfo> m_vpi;
	MyFileMap m_mfm;
};

#endif