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Current File : //usr/share/emscripten/tests/poppler/poppler/PDFDoc.h
//========================================================================
//
// PDFDoc.h
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005, 2006, 2008 Brad Hards <bradh@frogmouth.net>
// Copyright (C) 2005, 2009 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2008 Julien Rebetez <julienr@svn.gnome.org>
// Copyright (C) 2008 Pino Toscano <pino@kde.org>
// Copyright (C) 2008 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2009 Eric Toombs <ewtoombs@uwaterloo.ca>
// Copyright (C) 2009 Kovid Goyal <kovid@kovidgoyal.net>
// Copyright (C) 2010 Hib Eris <hib@hiberis.nl>
// Copyright (C) 2010 Srinivas Adicherla <srinivas.adicherla@geodesic.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef PDFDOC_H
#define PDFDOC_H
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include <stdio.h>
#include "XRef.h"
#include "Catalog.h"
#include "Page.h"
#include "Annot.h"
#include "OptionalContent.h"
class GooString;
class BaseStream;
class OutputDev;
class Links;
class LinkAction;
class LinkDest;
class Outline;
class Linearization;
class SecurityHandler;
class Hints;
enum PDFWriteMode {
writeStandard,
writeForceRewrite,
writeForceIncremental
};
//------------------------------------------------------------------------
// PDFDoc
//------------------------------------------------------------------------
class PDFDoc {
public:
PDFDoc(GooString *fileNameA, GooString *ownerPassword = NULL,
GooString *userPassword = NULL, void *guiDataA = NULL);
#ifdef _WIN32
PDFDoc(wchar_t *fileNameA, int fileNameLen, GooString *ownerPassword = NULL,
GooString *userPassword = NULL, void *guiDataA = NULL);
#endif
PDFDoc(BaseStream *strA, GooString *ownerPassword = NULL,
GooString *userPassword = NULL, void *guiDataA = NULL);
~PDFDoc();
static PDFDoc *ErrorPDFDoc(int errorCode, GooString *fileNameA = NULL);
// Was PDF document successfully opened?
GBool isOk() { return ok; }
// Get the error code (if isOk() returns false).
int getErrorCode() { return errCode; }
// Get the error code returned by fopen() (if getErrorCode() ==
// errOpenFile).
int getFopenErrno() { return fopenErrno; }
// Get file name.
GooString *getFileName() { return fileName; }
// Get the linearization table.
Linearization *getLinearization();
// Get the xref table.
XRef *getXRef() { return xref; }
// Get catalog.
Catalog *getCatalog() { return catalog; }
// Get optional content configuration
OCGs *getOptContentConfig() { return catalog->getOptContentConfig(); }
// Get base stream.
BaseStream *getBaseStream() { return str; }
// Get page parameters.
double getPageMediaWidth(int page)
{ return getPage(page) ? getPage(page)->getMediaWidth() : 0.0 ; }
double getPageMediaHeight(int page)
{ return getPage(page) ? getPage(page)->getMediaHeight() : 0.0 ; }
double getPageCropWidth(int page)
{ return getPage(page) ? getPage(page)->getCropWidth() : 0.0 ; }
double getPageCropHeight(int page)
{ return getPage(page) ? getPage(page)->getCropHeight() : 0.0 ; }
int getPageRotate(int page)
{ return getPage(page) ? getPage(page)->getRotate() : 0 ; }
// Get number of pages.
int getNumPages();
// Return the contents of the metadata stream, or NULL if there is
// no metadata.
GooString *readMetadata() { return catalog->readMetadata(); }
// Return the structure tree root object.
Object *getStructTreeRoot() { return catalog->getStructTreeRoot(); }
// Get page.
Page *getPage(int page);
// Display a page.
void displayPage(OutputDev *out, int page,
double hDPI, double vDPI, int rotate,
GBool useMediaBox, GBool crop, GBool printing,
GBool (*abortCheckCbk)(void *data) = NULL,
void *abortCheckCbkData = NULL,
GBool (*annotDisplayDecideCbk)(Annot *annot, void *user_data) = NULL,
void *annotDisplayDecideCbkData = NULL);
// Display a range of pages.
void displayPages(OutputDev *out, int firstPage, int lastPage,
double hDPI, double vDPI, int rotate,
GBool useMediaBox, GBool crop, GBool printing,
GBool (*abortCheckCbk)(void *data) = NULL,
void *abortCheckCbkData = NULL,
GBool (*annotDisplayDecideCbk)(Annot *annot, void *user_data) = NULL,
void *annotDisplayDecideCbkData = NULL);
// Display part of a page.
void displayPageSlice(OutputDev *out, int page,
double hDPI, double vDPI, int rotate,
GBool useMediaBox, GBool crop, GBool printing,
int sliceX, int sliceY, int sliceW, int sliceH,
GBool (*abortCheckCbk)(void *data) = NULL,
void *abortCheckCbkData = NULL,
GBool (*annotDisplayDecideCbk)(Annot *annot, void *user_data) = NULL,
void *annotDisplayDecideCbkData = NULL);
// Find a page, given its object ID. Returns page number, or 0 if
// not found.
int findPage(int num, int gen) { return catalog->findPage(num, gen); }
// Returns the links for the current page, transferring ownership to
// the caller.
Links *getLinks(int page);
// Find a named destination. Returns the link destination, or
// NULL if <name> is not a destination.
LinkDest *findDest(GooString *name)
{ return catalog->findDest(name); }
// Process the links for a page.
void processLinks(OutputDev *out, int page);
#ifndef DISABLE_OUTLINE
// Return the outline object.
Outline *getOutline();
#endif
// Is the file encrypted?
GBool isEncrypted() { return xref->isEncrypted(); }
// Check various permissions.
GBool okToPrint(GBool ignoreOwnerPW = gFalse)
{ return xref->okToPrint(ignoreOwnerPW); }
GBool okToPrintHighRes(GBool ignoreOwnerPW = gFalse)
{ return xref->okToPrintHighRes(ignoreOwnerPW); }
GBool okToChange(GBool ignoreOwnerPW = gFalse)
{ return xref->okToChange(ignoreOwnerPW); }
GBool okToCopy(GBool ignoreOwnerPW = gFalse)
{ return xref->okToCopy(ignoreOwnerPW); }
GBool okToAddNotes(GBool ignoreOwnerPW = gFalse)
{ return xref->okToAddNotes(ignoreOwnerPW); }
GBool okToFillForm(GBool ignoreOwnerPW = gFalse)
{ return xref->okToFillForm(ignoreOwnerPW); }
GBool okToAccessibility(GBool ignoreOwnerPW = gFalse)
{ return xref->okToAccessibility(ignoreOwnerPW); }
GBool okToAssemble(GBool ignoreOwnerPW = gFalse)
{ return xref->okToAssemble(ignoreOwnerPW); }
// Is this document linearized?
GBool isLinearized();
// Return the document's Info dictionary (if any).
Object *getDocInfo(Object *obj) { return xref->getDocInfo(obj); }
Object *getDocInfoNF(Object *obj) { return xref->getDocInfoNF(obj); }
// Return the PDF version specified by the file.
int getPDFMajorVersion() { return pdfMajorVersion; }
int getPDFMinorVersion() { return pdfMinorVersion; }
//Return the PDF ID in the trailer dictionary (if any).
GBool getID(GooString *permanent_id, GooString *update_id);
// Save this file with another name.
int saveAs(GooString *name, PDFWriteMode mode=writeStandard);
// Save this file in the given output stream.
int saveAs(OutStream *outStr, PDFWriteMode mode=writeStandard);
// Save this file with another name without saving changes
int saveWithoutChangesAs(GooString *name);
// Save this file in the given output stream without saving changes
int saveWithoutChangesAs(OutStream *outStr);
// Return a pointer to the GUI (XPDFCore or WinPDFCore object).
void *getGUIData() { return guiData; }
private:
// Add object to current file stream and return the offset of the beginning of the object
Guint writeObject (Object *obj, Ref *ref, OutStream* outStr);
void writeDictionnary (Dict* dict, OutStream* outStr);
void writeStream (Stream* str, OutStream* outStr);
void writeRawStream (Stream* str, OutStream* outStr);
void writeTrailer (Guint uxrefOffset, int uxrefSize, OutStream* outStr, GBool incrUpdate);
void writeString (GooString* s, OutStream* outStr);
void saveIncrementalUpdate (OutStream* outStr);
void saveCompleteRewrite (OutStream* outStr);
Page *parsePage(int page);
// Get hints.
Hints *getHints();
PDFDoc();
void init();
GBool setup(GooString *ownerPassword, GooString *userPassword);
GBool checkFooter();
void checkHeader();
GBool checkEncryption(GooString *ownerPassword, GooString *userPassword);
// Get the offset of the start xref table.
Guint getStartXRef();
// Get the offset of the entries in the main XRef table of a
// linearized document (0 for non linearized documents).
Guint getMainXRefEntriesOffset();
Guint strToUnsigned(char *s);
GooString *fileName;
FILE *file;
BaseStream *str;
void *guiData;
int pdfMajorVersion;
int pdfMinorVersion;
Linearization *linearization;
XRef *xref;
SecurityHandler *secHdlr;
Catalog *catalog;
Hints *hints;
#ifndef DISABLE_OUTLINE
Outline *outline;
#endif
Page **pageCache;
GBool ok;
int errCode;
//If there is an error opening the PDF file with fopen() in the constructor,
//then the POSIX errno will be here.
int fopenErrno;
Guint startXRefPos; // offset of last xref table
};
#endif
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