//========================================================================

//

// PDFDoc.h

//

// Copyright 1996-2003 Glyph & Cog, LLC

//

//========================================================================

#ifndef PDFDOC_H

#define PDFDOC_H

#include <aconf.h>

#include <stdio.h>

#include "XRef.h"

#include "Catalog.h"

#include "Page.h"

class GString;

class BaseStream;

class OutputDev;

class Annots;

class Links;

class LinkAction;

class LinkDest;

class Outline;

class OutlineItem;

class OptionalContent;

class PDFCore;

//------------------------------------------------------------------------

// PDFDoc

//------------------------------------------------------------------------

class PDFDoc {

public:

  PDFDoc(GString *fileNameA, GString *ownerPassword = NULL,

   GString *userPassword = NULL, PDFCore *coreA = NULL);

#ifdef _WIN32

  PDFDoc(wchar_t *fileNameA, int fileNameLen, GString *ownerPassword = NULL,

   GString *userPassword = NULL, PDFCore *coreA = NULL);

#endif

  // This version takes a UTF-8 file name (which is only relevant on

  // Windows).

  PDFDoc(char *fileNameA, GString *ownerPassword = NULL,

   GString *userPassword = NULL, PDFCore *coreA = NULL);

  PDFDoc(BaseStream *strA, GString *ownerPassword = NULL,

   GString *userPassword = NULL, PDFCore *coreA = NULL);

  ~PDFDoc();

  // Was PDF document successfully opened?

  GBool isOk() { return ok; }

  // Get the error code (if isOk() returns false).

  int getErrorCode() { return errCode; }

  // Get file name.

  GString *getFileName() { return fileName; }

#ifdef _WIN32

  wchar_t *getFileNameU() { return fileNameU; }

#endif

  // Get the xref table.

  XRef *getXRef() { return xref; }

  // Get catalog.

  Catalog *getCatalog() { return catalog; }

  // Get annotations.

  Annots *getAnnots() { return annots; }

  // Get base stream.

  BaseStream *getBaseStream() { return str; }

  // Get page parameters.

  double getPageMediaWidth(int page)

    { return catalog->getPage(page)->getMediaWidth(); }

  double getPageMediaHeight(int page)

    { return catalog->getPage(page)->getMediaHeight(); }

  double getPageCropWidth(int page)

    { return catalog->getPage(page)->getCropWidth(); }

  double getPageCropHeight(int page)

    { return catalog->getPage(page)->getCropHeight(); }

  int getPageRotate(int page)

    { return catalog->getPage(page)->getRotate(); }

  // Get number of pages.

  int getNumPages() { return catalog->getNumPages(); }

  // Return the contents of the metadata stream, or NULL if there is

  // no metadata.

  GString *readMetadata() { return catalog->readMetadata(); }

  // Return the structure tree root object.

  Object *getStructTreeRoot() { return catalog->getStructTreeRoot(); }

  // 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);

  // 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);

  // 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);

  // 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(GString *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() { return outline; }

  // Return the target page number for an outline item.  Returns 0 if

  // the item doesn't target a page in this PDF file.

  int getOutlineTargetPage(OutlineItem *outlineItem);

#endif

  // Return the OptionalContent object.

  OptionalContent *getOptionalContent() { return optContent; }

  // Is the file encrypted?

  GBool isEncrypted() { return xref->isEncrypted(); }

  // Check various permissions.

  GBool okToPrint(GBool ignoreOwnerPW = gFalse)

    { return xref->okToPrint(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); }

  // Is the PDF file damaged?  This checks to see if the xref table

  // was constructed by the repair code.

  GBool isDamaged() { return xref->isRepaired(); }

  // 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.

  double getPDFVersion() { return pdfVersion; }

  // Save this file with another name.

  GBool saveAs(GString *name);

  // Return a pointer to the PDFCore object.

  PDFCore *getCore() { return core; }

  // Get the list of embedded files.

  int getNumEmbeddedFiles() { return catalog->getNumEmbeddedFiles(); }

  Unicode *getEmbeddedFileName(int idx)

    { return catalog->getEmbeddedFileName(idx); }

  int getEmbeddedFileNameLength(int idx)

    { return catalog->getEmbeddedFileNameLength(idx); }

  GBool saveEmbeddedFile(int idx, const char *path);

  GBool saveEmbeddedFileU(int idx, const char *path);

#ifdef _WIN32

  GBool saveEmbeddedFile(int idx, const wchar_t *path, int pathLen);

#endif

  char *getEmbeddedFileMem(int idx, int *size);

  // Return true if the document uses JavaScript.

  GBool usesJavaScript() { return catalog->usesJavaScript(); }

private:

  void init(PDFCore *coreA);

  GBool setup(GString *ownerPassword, GString *userPassword);

  GBool setup2(GString *ownerPassword, GString *userPassword,

         GBool repairXRef);

  void checkHeader();

  GBool checkEncryption(GString *ownerPassword, GString *userPassword);

  GBool saveEmbeddedFile2(int idx, FILE *f);

  GString *fileName;

#ifdef _WIN32

  wchar_t *fileNameU;

#endif

  FILE *file;

  BaseStream *str;

  PDFCore *core;

  double pdfVersion;

  XRef *xref;

  Catalog *catalog;

  Annots *annots;

#ifndef DISABLE_OUTLINE

  Outline *outline;

#endif

  OptionalContent *optContent;

  GBool ok;

  int errCode;

};

#endif