/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #ifndef INCLUDED_VCL_SOURCE_GDI_PDFWRITER_IMPL_HXX #define INCLUDED_VCL_SOURCE_GDI_PDFWRITER_IMPL_HXX #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "pdffontcache.hxx" #include "pdfbuildin_fonts.hxx" class StyleSettings; class FontSelectPattern; class FontSubsetInfo; class ZCodec; class EncHashTransporter; struct BitStreamState; class PhysicalFontFace; class SvStream; class SvMemoryStream; // the maximum password length #define ENCRYPTED_PWD_SIZE 32 #define MD5_DIGEST_SIZE 16 #define SECUR_40BIT_KEY 5 // security 128 bit #define SECUR_128BIT_KEY 16 // maximum length of MD5 digest input, in step 2 of algorithm 3.1 // PDF spec ver. 1.4: see there for details #define MAXIMUM_RC4_KEY_LENGTH (SECUR_128BIT_KEY+3+2) enum class GraphicsStateUpdateFlags { Font = 0x0001, MapMode = 0x0002, LineColor = 0x0004, FillColor = 0x0008, TextLineColor = 0x0010, OverlineColor = 0x0020, ClipRegion = 0x0040, LayoutMode = 0x0100, TransparentPercent = 0x0200, DigitLanguage = 0x0400, All = 0x077f }; namespace o3tl { template<> struct typed_flags : is_typed_flags {}; } namespace vcl { class PDFStreamIf; class Matrix3; namespace filter { class PDFObjectElement; } class PDFWriterImpl : public VirtualDevice { friend class PDFStreamIf; public: enum ResourceKind { ResXObject, ResExtGState, ResShading, ResPattern }; typedef std::map< OString, sal_Int32 > ResourceMap; struct ResourceDict { // note: handle fonts globally for performance ResourceMap m_aXObjects; ResourceMap m_aExtGStates; ResourceMap m_aShadings; ResourceMap m_aPatterns; void append( OStringBuffer&, sal_Int32 nFontDictObject ); }; struct PDFPage { VclPtr m_pWriter; double const m_nPageWidth; // in inch/72 double const m_nPageHeight; // in inch/72 /** * A positive number that gives the size of default user space units, in multiples of points. * Typically 1, larger if page size is > 508 cm. */ sal_Int32 m_nUserUnit; PDFWriter::Orientation const m_eOrientation; sal_Int32 m_nPageObject; std::vector m_aStreamObjects; sal_Int32 m_nStreamLengthObject; sal_uInt64 m_nBeginStreamPos; std::vector m_aAnnotations; std::vector m_aMCIDParents; PDFWriter::PageTransition m_eTransition; sal_uInt32 m_nTransTime; PDFPage( PDFWriterImpl* pWriter, double nPageWidth, double nPageHeight, PDFWriter::Orientation eOrientation ); ~PDFPage(); void beginStream(); void endStream(); bool emit( sal_Int32 nParentPage ); // converts point from ref device coordinates to // page coordinates and appends the point to the buffer // if pOutPoint is set it will be updated to the emitted point // (in PDF map mode, that is 10th of point) void appendPoint( const Point& rPoint, OStringBuffer& rBuffer ) const; // appends a B2DPoint without further transformation void appendPixelPoint( const basegfx::B2DPoint& rPoint, OStringBuffer& rBuffer ) const; // appends a rectangle void appendRect( const tools::Rectangle& rRect, OStringBuffer& rBuffer ) const; // converts a rectangle to 10th points page space void convertRect( tools::Rectangle& rRect ) const; // appends a polygon optionally closing it void appendPolygon( const tools::Polygon& rPoly, OStringBuffer& rBuffer, bool bClose = true ) const; // appends a polygon optionally closing it void appendPolygon( const basegfx::B2DPolygon& rPoly, OStringBuffer& rBuffer ) const; // appends a polypolygon optionally closing the subpaths void appendPolyPolygon( const tools::PolyPolygon& rPolyPoly, OStringBuffer& rBuffer ) const; // appends a polypolygon optionally closing the subpaths void appendPolyPolygon( const basegfx::B2DPolyPolygon& rPolyPoly, OStringBuffer& rBuffer ) const; // converts a length (either vertical or horizontal; this // can be important if the source MapMode is not // symmetrical) to page length and appends it to the buffer // if pOutLength is set it will be updated to the emitted length // (in PDF map mode, that is 10th of point) void appendMappedLength( sal_Int32 nLength, OStringBuffer& rBuffer, bool bVertical = true, sal_Int32* pOutLength = nullptr ) const; // the same for double values void appendMappedLength( double fLength, OStringBuffer& rBuffer, bool bVertical = true, sal_Int32 nPrecision = 5 ) const; // appends LineInfo // returns false if too many dash array entry were created for // the implementation limits of some PDF readers bool appendLineInfo( const LineInfo& rInfo, OStringBuffer& rBuffer ) const; // appends a horizontal waveline with vertical offset (helper for drawWaveLine) void appendWaveLine( sal_Int32 nLength, sal_Int32 nYOffset, sal_Int32 nDelta, OStringBuffer& rBuffer ) const; double getHeight() const; }; friend struct PDFPage; struct BitmapID { Size m_aPixelSize; sal_Int32 m_nSize; BitmapChecksum m_nChecksum; BitmapChecksum m_nMaskChecksum; BitmapID() : m_nSize( 0 ), m_nChecksum( 0 ), m_nMaskChecksum( 0 ) {} bool operator==( const BitmapID& rComp ) const { return (m_aPixelSize == rComp.m_aPixelSize && m_nSize == rComp.m_nSize && m_nChecksum == rComp.m_nChecksum && m_nMaskChecksum == rComp.m_nMaskChecksum ); } }; /// Contains information to emit a reference XObject. struct ReferenceXObjectEmit { /// ID of the Form XObject, if any. sal_Int32 m_nFormObject; /// ID of the vector/embedded object, if m_nFormObject is used. sal_Int32 m_nEmbeddedObject; /// ID of the bitmap object, if m_nFormObject is used. sal_Int32 m_nBitmapObject; /// Size of the bitmap replacement, in pixels. Size m_aPixelSize; /// PDF data from the graphic object, if not writing a reference XObject. std::vector m_aPDFData; sal_Int32 m_nPDFPageIndex; ReferenceXObjectEmit() : m_nFormObject(0), m_nEmbeddedObject(0), m_nBitmapObject(0), m_nPDFPageIndex(-1) { } /// Returns the ID one should use when referring to this bitmap. sal_Int32 getObject() const; }; struct BitmapEmit { BitmapID m_aID; BitmapEx m_aBitmap; sal_Int32 m_nObject; ReferenceXObjectEmit m_aReferenceXObject; BitmapEmit() : m_nObject(0) { } }; struct JPGEmit { BitmapID m_aID; std::unique_ptr m_pStream; Bitmap m_aMask; sal_Int32 m_nObject; bool m_bTrueColor; ReferenceXObjectEmit m_aReferenceXObject; JPGEmit() : m_nObject(0) , m_bTrueColor(false) { } }; struct GradientEmit { Gradient m_aGradient; Size m_aSize; sal_Int32 m_nObject; }; // for tilings (drawWallpaper, begin/endPattern) struct TilingEmit { sal_Int32 m_nObject; tools::Rectangle m_aRectangle; Size m_aCellSize; SvtGraphicFill::Transform m_aTransform; ResourceDict m_aResources; std::unique_ptr m_pTilingStream; TilingEmit() : m_nObject( 0 ) {} }; // for transparency group XObjects struct TransparencyEmit { sal_Int32 m_nObject; sal_Int32 m_nExtGStateObject; double m_fAlpha; tools::Rectangle m_aBoundRect; std::unique_ptr m_pContentStream; std::unique_ptr m_pSoftMaskStream; TransparencyEmit() : m_nObject( 0 ), m_nExtGStateObject( -1 ), m_fAlpha( 0.0 ) {} }; // font subsets class GlyphEmit { // performance: actually this should probably a vector; std::vector m_CodeUnits; sal_uInt8 m_nSubsetGlyphID; public: GlyphEmit() : m_nSubsetGlyphID(0) { } void setGlyphId( sal_uInt8 i_nId ) { m_nSubsetGlyphID = i_nId; } sal_uInt8 getGlyphId() const { return m_nSubsetGlyphID; } void addCode( sal_Ucs i_cCode ) { m_CodeUnits.push_back(i_cCode); } sal_Int32 countCodes() const { return m_CodeUnits.size(); } const std::vector& codes() const { return m_CodeUnits; } sal_Ucs getCode( sal_Int32 i_nIndex ) const { sal_Ucs nRet = 0; if (static_cast(i_nIndex) < m_CodeUnits.size()) nRet = m_CodeUnits[i_nIndex]; return nRet; } }; typedef std::map< sal_GlyphId, GlyphEmit > FontEmitMapping; struct FontEmit { sal_Int32 m_nFontID; FontEmitMapping m_aMapping; explicit FontEmit( sal_Int32 nID ) : m_nFontID( nID ) {} }; struct Glyph { sal_Int32 m_nFontID; sal_uInt8 m_nSubsetGlyphID; }; typedef std::map< sal_GlyphId, Glyph > FontMapping; struct FontSubset { std::vector< FontEmit > m_aSubsets; FontMapping m_aMapping; }; typedef std::map< const PhysicalFontFace*, FontSubset > FontSubsetData; struct EmbedFont { sal_Int32 m_nNormalFontID; EmbedFont() : m_nNormalFontID( 0 ) {} }; typedef std::map< const PhysicalFontFace*, EmbedFont > FontEmbedData; struct PDFDest { sal_Int32 m_nPage; PDFWriter::DestAreaType m_eType; tools::Rectangle m_aRect; }; //--->i56629 struct PDFNamedDest { OUString m_aDestName; sal_Int32 m_nPage; PDFWriter::DestAreaType m_eType; tools::Rectangle m_aRect; }; struct PDFOutlineEntry { sal_Int32 m_nObject; sal_Int32 m_nParentObject; sal_Int32 m_nNextObject; sal_Int32 m_nPrevObject; std::vector< sal_Int32 > m_aChildren; OUString m_aTitle; sal_Int32 m_nDestID; PDFOutlineEntry() : m_nObject( 0 ), m_nParentObject( 0 ), m_nNextObject( 0 ), m_nPrevObject( 0 ), m_nDestID( -1 ) {} }; struct PDFAnnotation { sal_Int32 m_nObject; tools::Rectangle m_aRect; sal_Int32 m_nPage; PDFAnnotation() : m_nObject( -1 ), m_nPage( -1 ) {} }; struct PDFLink : public PDFAnnotation { sal_Int32 m_nDest; // set to -1 for URL, to a dest else OUString m_aURL; sal_Int32 m_nStructParent; // struct parent entry PDFLink() : m_nDest( -1 ), m_nStructParent( -1 ) {} }; /// A PDF Screen annotation. struct PDFScreen : public PDFAnnotation { /// Linked video. OUString m_aURL; /// Embedded video. OUString m_aTempFileURL; /// ID of the EmbeddedFile object. sal_Int32 m_nTempFileObject; PDFScreen() : m_nTempFileObject(0) { } }; /// A PDF embedded file. struct PDFEmbeddedFile { /// ID of the file. sal_Int32 m_nObject; /// Contents of the file. std::shared_ptr> m_pData; PDFEmbeddedFile() : m_nObject(0) { } }; struct PDFNoteEntry : public PDFAnnotation { PDFNote m_aContents; PDFNoteEntry() {} }; typedef std::unordered_map< OString, SvMemoryStream* > PDFAppearanceStreams; typedef std::unordered_map< OString, PDFAppearanceStreams > PDFAppearanceMap; struct PDFWidget : public PDFAnnotation { PDFWriter::WidgetType m_eType; OString m_aName; OUString m_aDescription; OUString m_aText; DrawTextFlags m_nTextStyle; OUString m_aValue; OString m_aDAString; OString m_aDRDict; OString m_aMKDict; OString m_aMKDictCAString; // i12626, added to be able to encrypt the /CA text string // since the object number is not known at the moment // of filling m_aMKDict, the string will be encrypted when emitted. // the /CA string MUST BE the last added to m_aMKDict // see code for details sal_Int32 m_nFlags; sal_Int32 m_nParent; // if not 0, parent's object number std::vector m_aKids; // widget children, contains object numbers std::vector m_aKidsIndex; // widget children, contains index to m_aWidgets OUString m_aOnValue; sal_Int32 m_nTabOrder; // lowest number gets first in tab order sal_Int32 m_nRadioGroup; sal_Int32 m_nMaxLen; bool m_bSubmit; bool m_bSubmitGet; sal_Int32 m_nDest; std::vector m_aListEntries; std::vector m_aSelectedEntries; PDFAppearanceMap m_aAppearances; PDFWidget() : m_eType( PDFWriter::PushButton ), m_nTextStyle( DrawTextFlags::NONE ), m_nFlags( 0 ), m_nParent( 0 ), m_nTabOrder( 0 ), m_nRadioGroup( -1 ), m_nMaxLen( 0 ), m_bSubmit( false ), m_bSubmitGet( false ), m_nDest( -1 ) {} }; struct PDFStructureAttribute { PDFWriter::StructAttributeValue eValue; sal_Int32 nValue; PDFStructureAttribute() : eValue( PDFWriter::Invalid ), nValue( 0 ) {} explicit PDFStructureAttribute( PDFWriter::StructAttributeValue eVal ) : eValue( eVal ), nValue( 0 ) {} explicit PDFStructureAttribute( sal_Int32 nVal ) : eValue( PDFWriter::Invalid ), nValue( nVal ) {} }; struct PDFStructureElementKid // for Kids entries { sal_Int32 const nObject; // an object number if nMCID is -1, // else the page object relevant to MCID sal_Int32 const nMCID; // an MCID if >= 0 explicit PDFStructureElementKid( sal_Int32 nObj ) : nObject( nObj ), nMCID( -1 ) {} PDFStructureElementKid( sal_Int32 MCID, sal_Int32 nPage ) : nObject( nPage ), nMCID( MCID ) {} }; struct PDFStructureElement { sal_Int32 m_nObject; PDFWriter::StructElement m_eType; OString m_aAlias; sal_Int32 m_nOwnElement; // index into structure vector sal_Int32 m_nParentElement; // index into structure vector sal_Int32 m_nFirstPageObject; bool m_bOpenMCSeq; std::list< sal_Int32 > m_aChildren; // indexes into structure vector std::list< PDFStructureElementKid > m_aKids; std::map m_aAttributes; tools::Rectangle m_aBBox; OUString m_aActualText; OUString m_aAltText; css::lang::Locale m_aLocale; // m_aContents contains the element's marked content sequence // as pairs of (page nr, MCID) PDFStructureElement() : m_nObject( 0 ), m_eType( PDFWriter::NonStructElement ), m_nOwnElement( -1 ), m_nParentElement( -1 ), m_nFirstPageObject( 0 ), m_bOpenMCSeq( false ) { } }; struct PDFAddStream { OUString m_aMimeType; PDFOutputStream* m_pStream; sal_Int32 m_nStreamObject; bool m_bCompress; PDFAddStream() : m_pStream( nullptr ), m_nStreamObject( 0 ), m_bCompress( true ) {} }; // helper structure for drawLayout and friends struct PDFGlyph { Point const m_aPos; const GlyphItem* m_pGlyph; sal_Int32 const m_nNativeWidth; sal_Int32 const m_nMappedFontId; sal_uInt8 const m_nMappedGlyphId; int const m_nCharPos; PDFGlyph( const Point& rPos, const GlyphItem* pGlyph, sal_Int32 nNativeWidth, sal_Int32 nFontId, sal_uInt8 nMappedGlyphId, int nCharPos ) : m_aPos( rPos ), m_pGlyph(pGlyph), m_nNativeWidth( nNativeWidth ), m_nMappedFontId( nFontId ), m_nMappedGlyphId( nMappedGlyphId ), m_nCharPos(nCharPos) {} }; static const sal_Char* getStructureTag( PDFWriter::StructElement ); static const sal_Char* getAttributeTag( PDFWriter::StructAttribute eAtr ); static const sal_Char* getAttributeValueTag( PDFWriter::StructAttributeValue eVal ); // returns true if compression was done // else false static bool compressStream( SvMemoryStream* ); static void convertLineInfoToExtLineInfo( const LineInfo& rIn, PDFWriter::ExtLineInfo& rOut ); private: MapMode m_aMapMode; // PDFWriterImpl scaled units std::vector< PDFPage > m_aPages; /* maps object numbers to file offsets (needed for xref) */ std::vector< sal_uInt64 > m_aObjects; /* contains Bitmaps until they are written to the * file stream as XObjects*/ std::list< BitmapEmit > m_aBitmaps; /* contains JPG streams until written to file */ std::vector m_aJPGs; /*--->i56629 contains all named destinations ever set during the PDF creation, destination id is always the destination's position in this vector */ std::vector m_aNamedDests; /* contains all dests ever set during the PDF creation, dest id is always the dest's position in this vector */ std::vector m_aDests; /** contains destinations accessible via a public Id, instead of being linked to by an ordinary link */ ::std::map< sal_Int32, sal_Int32 > m_aDestinationIdTranslation; /* contains all links ever set during PDF creation, link id is always the link's position in this vector */ std::vector m_aLinks; /// Contains all screen annotations. std::vector m_aScreens; /// Contains embedded files. std::vector m_aEmbeddedFiles; /* makes correctly encoded for export to PDF URLS */ css::uno::Reference< css::util::XURLTransformer > m_xTrans; /* maps arbitrary link ids for structure attributes to real link ids (for setLinkPropertyId) */ std::map m_aLinkPropertyMap; /* contains all outline items, object 0 is the outline root */ std::vector m_aOutline; /* contains all notes set during PDF creation */ std::vector m_aNotes; /* the root of the structure tree */ std::vector m_aStructure; /* current object in the structure hierarchy */ sal_Int32 m_nCurrentStructElement; /* structure parent tree */ std::vector< OString > m_aStructParentTree; /* emit structure marks currently (aka. NonStructElement or not) */ bool m_bEmitStructure; /* role map of struct tree root */ std::unordered_map< OString, OString > m_aRoleMap; /* contains all widgets used in the PDF */ std::vector m_aWidgets; /* maps radio group id to index of radio group control in m_aWidgets */ std::map< sal_Int32, sal_Int32 > m_aRadioGroupWidgets; /* unordered_map for field names, used to ensure unique field names */ std::unordered_map< OString, sal_Int32 > m_aFieldNameMap; /* contains Bitmaps for gradient functions until they are written * to the file stream */ std::list< GradientEmit > m_aGradients; /* contains bitmap tiling patterns */ std::vector< TilingEmit > m_aTilings; std::list< TransparencyEmit > m_aTransparentObjects; /* contains all font subsets in use */ FontSubsetData m_aSubsets; FontEmbedData m_aSystemFonts; sal_Int32 m_nNextFID; PDFFontCache m_aFontCache; static constexpr sal_Int32 g_nInheritedPageWidth = 595; // default A4 in inch/72 static constexpr sal_Int32 g_nInheritedPageHeight = 842; // default A4 in inch/72 sal_Int32 m_nCurrentPage; sal_Int32 m_nCatalogObject; // object number of the main signature dictionary sal_Int32 m_nSignatureObject; sal_Int64 m_nSignatureContentOffset; sal_Int64 m_nSignatureLastByteRangeNoOffset; sal_Int32 m_nResourceDict; ResourceDict m_aGlobalResourceDict; sal_Int32 m_nFontDictObject; std::map< sal_Int32, sal_Int32 > m_aBuildinFontToObjectMap; PDFWriter::PDFWriterContext m_aContext; osl::File m_aFile; bool m_bOpen; /* output redirection; e.g. to accumulate content streams for XObjects */ struct StreamRedirect { SvStream* m_pStream; MapMode m_aMapMode; tools::Rectangle m_aTargetRect; ResourceDict m_aResourceDict; }; std::list< StreamRedirect > m_aOutputStreams; // graphics state struct GraphicsState { vcl::Font m_aFont; MapMode m_aMapMode; Color m_aLineColor; Color m_aFillColor; Color m_aTextLineColor; Color m_aOverlineColor; basegfx::B2DPolyPolygon m_aClipRegion; bool m_bClipRegion; ComplexTextLayoutFlags m_nLayoutMode; LanguageType m_aDigitLanguage; PushFlags m_nFlags; GraphicsStateUpdateFlags m_nUpdateFlags; GraphicsState() : m_aLineColor( COL_TRANSPARENT ), m_aFillColor( COL_TRANSPARENT ), m_aTextLineColor( COL_TRANSPARENT ), m_aOverlineColor( COL_TRANSPARENT ), m_bClipRegion( false ), m_nLayoutMode( ComplexTextLayoutFlags::Default ), m_aDigitLanguage( 0 ), m_nFlags( PushFlags::ALL ), m_nUpdateFlags( GraphicsStateUpdateFlags::All ) {} }; std::list< GraphicsState > m_aGraphicsStack; GraphicsState m_aCurrentPDFState; std::unique_ptr m_pCodec; std::unique_ptr m_pMemStream; std::vector< PDFAddStream > m_aAdditionalStreams; std::set< PDFWriter::ErrorCode > m_aErrors; ::comphelper::Hash m_DocDigest; /* variables for PDF security i12626 */ /* used to cipher the stream data and for password management */ rtlCipher m_aCipher; /* pad string used for password in Standard security handler */ static const sal_uInt8 s_nPadString[ENCRYPTED_PWD_SIZE]; /* the encryption key, formed with the user password according to algorithm 3.2, maximum length is 16 bytes + 3 + 2 for 128 bit security */ sal_Int32 m_nKeyLength; // key length, 16 or 5 sal_Int32 m_nRC4KeyLength; // key length, 16 or 10, to be input to the algorithm 3.1 /* set to true if the following stream must be encrypted, used inside writeBuffer() */ bool m_bEncryptThisStream; /* the numerical value of the access permissions, according to PDF spec, must be signed */ sal_Int32 m_nAccessPermissions; /* string to hold the PDF creation date */ OString m_aCreationDateString; /* string to hold the PDF creation date, for PDF/A metadata */ OString m_aCreationMetaDateString; /* the buffer where the data are encrypted, dynamically allocated */ std::vector m_vEncryptionBuffer; /* this function implements part of the PDF spec algorithm 3.1 in encryption, the rest (the actual encryption) is in PDFWriterImpl::writeBuffer */ void checkAndEnableStreamEncryption( sal_Int32 nObject ); void disableStreamEncryption() { m_bEncryptThisStream = false; }; /* */ void enableStringEncryption( sal_Int32 nObject ); // test if the encryption is active, if yes than encrypt the unicode string and add to the OStringBuffer parameter void appendUnicodeTextStringEncrypt( const OUString& rInString, const sal_Int32 nInObjectNumber, OStringBuffer& rOutBuffer ); void appendLiteralStringEncrypt( const OUString& rInString, const sal_Int32 nInObjectNumber, OStringBuffer& rOutBuffer, rtl_TextEncoding nEnc = RTL_TEXTENCODING_ASCII_US ); void appendLiteralStringEncrypt( const OString& rInString, const sal_Int32 nInObjectNumber, OStringBuffer& rOutBuffer ); void appendLiteralStringEncrypt( OStringBuffer const & rInString, const sal_Int32 nInObjectNumber, OStringBuffer& rOutBuffer ); /* creates fonts and subsets that will be emitted later */ void registerGlyph(const GlyphItem* pGlyph, const PhysicalFontFace* pFont, const std::vector& rCodeUnits, sal_uInt8& nMappedGlyph, sal_Int32& nMappedFontObject); /* emits a text object according to the passed layout */ /* TODO: remove rText as soon as SalLayout will change so that rText is not necessary anymore */ void drawVerticalGlyphs( const std::vector& rGlyphs, OStringBuffer& rLine, const Point& rAlignOffset, const Matrix3& rRotScale, double fAngle, double fXScale, double fSkew, sal_Int32 nFontHeight ); void drawHorizontalGlyphs( const std::vector& rGlyphs, OStringBuffer& rLine, const Point& rAlignOffset, bool bFirst, double fAngle, double fXScale, double fSkew, sal_Int32 nFontHeight, sal_Int32 nPixelFontHeight ); void drawLayout( SalLayout& rLayout, const OUString& rText, bool bTextLines ); void drawRelief( SalLayout& rLayout, const OUString& rText, bool bTextLines ); void drawShadow( SalLayout& rLayout, const OUString& rText, bool bTextLines ); enum Mode { DEFAULT, NOWRITE }; /* writes differences between graphics stack and current real PDF * state to the file */ void updateGraphicsState(Mode mode = DEFAULT); /* writes a transparency group object */ void writeTransparentObject( TransparencyEmit& rObject ); /* writes an XObject of type image, may create a second for the mask */ bool writeBitmapObject( BitmapEmit& rObject, bool bMask = false ); void writeJPG( JPGEmit& rEmit ); /// Writes the form XObject proxy for the image. void writeReferenceXObject(ReferenceXObjectEmit& rEmit); /// Copies resources of a given kind from an external page to the output, /// returning what has to be included in the new resource dictionary. OString copyExternalResources(filter::PDFObjectElement& rPage, const OString& rKind, std::map& rCopiedResources); /// Copies a single resource from an external document, returns the new /// object ID in our document. sal_Int32 copyExternalResource(SvMemoryStream& rDocBuffer, filter::PDFObjectElement& rObject, std::map& rCopiedResources); /* tries to find the bitmap by its id and returns its emit data if exists, else creates a new emit data block */ const BitmapEmit& createBitmapEmit( const BitmapEx& rBitmapEx, const Graphic& rGraphic ); /* writes the Do operation inside the content stream */ void drawBitmap( const Point& rDestPt, const Size& rDestSize, const BitmapEmit& rBitmap, const Color& rFillColor ); /* write the function object for a Gradient */ bool writeGradientFunction( GradientEmit const & rObject ); /* creates a GradientEmit and returns its object number */ sal_Int32 createGradient( const Gradient& rGradient, const Size& rSize ); /* writes all tilings */ bool emitTilings(); /* writes all gradient patterns */ bool emitGradients(); /* writes a builtin font object and returns its objectid (or 0 in case of failure ) */ sal_Int32 emitBuildinFont( const pdf::BuildinFontFace*, sal_Int32 nObject ); /* writes a type1 system font object and returns its mapping from font ids to object ids (or 0 in case of failure ) */ std::map< sal_Int32, sal_Int32 > emitSystemFont( const PhysicalFontFace*, EmbedFont const & ); /* writes a font descriptor and returns its object id (or 0) */ sal_Int32 emitFontDescriptor( const PhysicalFontFace*, FontSubsetInfo const &, sal_Int32 nSubsetID, sal_Int32 nStream ); /* writes a ToUnicode cmap, returns the corresponding stream object */ sal_Int32 createToUnicodeCMap( sal_uInt8 const * pEncoding, const sal_Ucs* pCodeUnits, const sal_Int32* pCodeUnitsPerGlyph, const sal_Int32* pEncToUnicodeIndex, int nGlyphs ); /* get resource dict object number */ sal_Int32 getResourceDictObj() { if( m_nResourceDict <= 0 ) m_nResourceDict = createObject(); return m_nResourceDict; } /* get the font dict object */ sal_Int32 getFontDictObject() { if( m_nFontDictObject <= 0 ) m_nFontDictObject = createObject(); return m_nFontDictObject; } /* push resource into current (redirected) resource dict */ void pushResource( ResourceKind eKind, const OString& rResource, sal_Int32 nObject ); void appendBuildinFontsToDict( OStringBuffer& rDict ) const; /* writes a the font dictionary and emits all font objects * returns object id of font directory (or 0 on error) */ bool emitFonts(); /* writes the Resource dictionary; * returns dict object id (or 0 on error) */ sal_Int32 emitResources(); // appends a dest bool appendDest( sal_Int32 nDestID, OStringBuffer& rBuffer ); // write all links bool emitLinkAnnotations(); /// Write all screen annotations. bool emitScreenAnnotations(); // write all notes bool emitNoteAnnotations(); // write the appearance streams of a widget bool emitAppearances( PDFWidget& rWidget, OStringBuffer& rAnnotDict ); // clean up radio button "On" values void ensureUniqueRadioOnValues(); // write all widgets bool emitWidgetAnnotations(); // writes all annotation objects bool emitAnnotations(); /// Writes embedded files. bool emitEmbeddedFiles(); //write the named destination stuff sal_Int32 emitNamedDestinations();//i56629 // writes outline dict and tree sal_Int32 emitOutline(); // puts the attribute objects of a structure element into the returned string, // helper for emitStructure OString emitStructureAttributes( PDFStructureElement& rEle ); //--->i94258 // the maximum array elements allowed for PDF array object static const sal_uInt32 ncMaxPDFArraySize = 8191; //check if internal dummy container are needed in the structure elements void addInternalStructureContainer( PDFStructureElement& rEle ); //<---i94258 // writes document structure sal_Int32 emitStructure( PDFStructureElement& rEle ); // writes structure parent tree sal_Int32 emitStructParentTree( sal_Int32 nTreeObject ); // writes page tree and catalog bool emitCatalog(); // writes signature dictionary object bool emitSignature(); // creates a PKCS7 object using the ByteRange and overwrite /Contents // of the signature dictionary bool finalizeSignature(); // writes xref and trailer bool emitTrailer(); // emit additional streams collected; also create there object numbers bool emitAdditionalStreams(); // emits info dict (if applicable) sal_Int32 emitInfoDict( ); // acrobat reader 5 and 6 use the order of the annotations // as their tab order; since PDF1.5 one can make the // tab order explicit by using the structure tree void sortWidgets(); // updates the count numbers of outline items sal_Int32 updateOutlineItemCount( std::vector< sal_Int32 >& rCounts, sal_Int32 nItemLevel, sal_Int32 nCurrentItemId ); // default appearances for widgets sal_Int32 findRadioGroupWidget( const PDFWriter::RadioButtonWidget& rRadio ); Font replaceFont( const Font& rControlFont, const Font& rAppSetFont ); sal_Int32 getBestBuildinFont( const Font& rFont ); sal_Int32 getSystemFont( const Font& i_rFont ); // used for edit and listbox Font drawFieldBorder( PDFWidget&, const PDFWriter::AnyWidget&, const StyleSettings& ); void createDefaultPushButtonAppearance( PDFWidget&, const PDFWriter::PushButtonWidget& rWidget ); void createDefaultCheckBoxAppearance( PDFWidget&, const PDFWriter::CheckBoxWidget& rWidget ); void createDefaultRadioButtonAppearance( PDFWidget&, const PDFWriter::RadioButtonWidget& rWidget ); void createDefaultEditAppearance( PDFWidget&, const PDFWriter::EditWidget& rWidget ); void createDefaultListBoxAppearance( PDFWidget&, const PDFWriter::ListBoxWidget& rWidget ); /* ensure proper escapement and uniqueness of field names */ void createWidgetFieldName( sal_Int32 i_nWidgetsIndex, const PDFWriter::AnyWidget& i_rInWidget ); /* adds an entry to m_aObjects and returns its index+1, * sets the offset to ~0 */ sal_Int32 createObject(); /* sets the offset of object n to the current position of output file+1 */ bool updateObject( sal_Int32 n ); bool writeBuffer( const void* pBuffer, sal_uInt64 nBytes ); void beginCompression(); void endCompression(); void beginRedirect( SvStream* pStream, const tools::Rectangle& ); SvStream* endRedirect(); void endPage(); void beginStructureElementMCSeq(); void endStructureElementMCSeq(); /** checks whether a non struct element lies in the ancestor hierarchy of the current structure element @returns true if no NonStructElement was found in ancestor path and tagged PDF output is enabled false else */ bool checkEmitStructure(); /* draws an emphasis mark */ void drawEmphasisMark( long nX, long nY, const tools::PolyPolygon& rPolyPoly, bool bPolyLine, const tools::Rectangle& rRect1, const tools::Rectangle& rRect2 ); /* true if PDF/A-1a or PDF/A-1b is output */ bool m_bIsPDF_A1; PDFWriter& m_rOuterFace; /* i12626 methods for PDF security pad a password according algorithm 3.2, step 1 */ static void padPassword( const OUString& i_rPassword, sal_uInt8* o_pPaddedPW ); /* algorithm 3.2: compute an encryption key */ static bool computeEncryptionKey( EncHashTransporter*, vcl::PDFWriter::PDFEncryptionProperties& io_rProperties, sal_Int32 i_nAccessPermissions ); /* algorithm 3.3: computing the encryption dictionary'ss owner password value ( /O ) */ static bool computeODictionaryValue( const sal_uInt8* i_pPaddedOwnerPassword, const sal_uInt8* i_pPaddedUserPassword, std::vector< sal_uInt8 >& io_rOValue, sal_Int32 i_nKeyLength ); /* algorithm 3.4 or 3.5: computing the encryption dictionary's user password value ( /U ) revision 2 or 3 of the standard security handler */ static bool computeUDictionaryValue( EncHashTransporter* i_pTransporter, vcl::PDFWriter::PDFEncryptionProperties& io_rProperties, sal_Int32 i_nKeyLength, sal_Int32 i_nAccessPermissions ); static void computeDocumentIdentifier( std::vector< sal_uInt8 >& o_rIdentifier, const vcl::PDFWriter::PDFDocInfo& i_rDocInfo, const OString& i_rCString1, OString& o_rCString2 ); static sal_Int32 computeAccessPermissions( const vcl::PDFWriter::PDFEncryptionProperties& i_rProperties, sal_Int32& o_rKeyLength, sal_Int32& o_rRC4KeyLength ); void setupDocInfo(); bool prepareEncryption( const css::uno::Reference< css::beans::XMaterialHolder >& ); // helper for playMetafile void implWriteGradient( const tools::PolyPolygon& rPolyPoly, const Gradient& rGradient, VirtualDevice* pDummyVDev, const vcl::PDFWriter::PlayMetafileContext& ); void implWriteBitmapEx( const Point& rPoint, const Size& rSize, const BitmapEx& rBitmapEx, const Graphic& i_pGraphic, VirtualDevice const * pDummyVDev, const vcl::PDFWriter::PlayMetafileContext& ); // helpers for CCITT 1bit bitmap stream void putG4Bits( sal_uInt32 i_nLength, sal_uInt32 i_nCode, BitStreamState& io_rState ); void putG4Span( long i_nSpan, bool i_bWhitePixel, BitStreamState& io_rState ); void writeG4Stream( BitmapReadAccess const * i_pBitmap ); // color helper functions void appendStrokingColor( const Color& rColor, OStringBuffer& rBuffer ); void appendNonStrokingColor( const Color& rColor, OStringBuffer& rBuffer ); public: PDFWriterImpl( const PDFWriter::PDFWriterContext& rContext, const css::uno::Reference< css::beans::XMaterialHolder >&, PDFWriter& ); ~PDFWriterImpl() override; void dispose() override; static css::uno::Reference< css::beans::XMaterialHolder > initEncryption( const OUString& i_rOwnerPassword, const OUString& i_rUserPassword ); /* document structure */ void newPage( double nPageWidth , double nPageHeight, PDFWriter::Orientation eOrientation ); bool emit(); const std::set< PDFWriter::ErrorCode > & getErrors() const { return m_aErrors;} void insertError( PDFWriter::ErrorCode eErr ) { m_aErrors.insert( eErr ); } void playMetafile( const GDIMetaFile&, vcl::PDFExtOutDevData*, const vcl::PDFWriter::PlayMetafileContext&, VirtualDevice* pDummyDev = nullptr ); Size getCurPageSize() const { Size aSize; if( m_nCurrentPage >= 0 && m_nCurrentPage < static_cast(m_aPages.size()) ) aSize = Size( m_aPages[ m_nCurrentPage ].m_nPageWidth, m_aPages[ m_nCurrentPage ].m_nPageHeight ); return aSize; } PDFWriter::PDFVersion getVersion() const { return m_aContext.Version; } void setDocumentLocale( const css::lang::Locale& rLoc ) { m_aContext.DocumentLocale = rLoc; } /* graphics state */ void push( PushFlags nFlags ); void pop(); void setFont( const Font& rFont ); void setMapMode( const MapMode& rMapMode ); const MapMode& getMapMode() { return m_aGraphicsStack.front().m_aMapMode; } void setLineColor( const Color& rColor ) { m_aGraphicsStack.front().m_aLineColor = ImplIsColorTransparent(rColor) ? COL_TRANSPARENT : rColor; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::LineColor; } void setFillColor( const Color& rColor ) { m_aGraphicsStack.front().m_aFillColor = ImplIsColorTransparent(rColor) ? COL_TRANSPARENT : rColor; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::FillColor; } void setTextLineColor() { m_aGraphicsStack.front().m_aTextLineColor = COL_TRANSPARENT; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::TextLineColor; } void setTextLineColor( const Color& rColor ) { m_aGraphicsStack.front().m_aTextLineColor = rColor; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::TextLineColor; } void setOverlineColor() { m_aGraphicsStack.front().m_aOverlineColor = COL_TRANSPARENT; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::OverlineColor; } void setOverlineColor( const Color& rColor ) { m_aGraphicsStack.front().m_aOverlineColor = rColor; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::OverlineColor; } void setTextFillColor( const Color& rColor ) { m_aGraphicsStack.front().m_aFont.SetFillColor( rColor ); m_aGraphicsStack.front().m_aFont.SetTransparent( ImplIsColorTransparent( rColor ) ); m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::Font; } void setTextFillColor() { m_aGraphicsStack.front().m_aFont.SetFillColor( COL_TRANSPARENT ); m_aGraphicsStack.front().m_aFont.SetTransparent( true ); m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::Font; } void setTextColor( const Color& rColor ) { m_aGraphicsStack.front().m_aFont.SetColor( rColor ); m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::Font; } void clearClipRegion() { m_aGraphicsStack.front().m_aClipRegion.clear(); m_aGraphicsStack.front().m_bClipRegion = false; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::ClipRegion; } void setClipRegion( const basegfx::B2DPolyPolygon& rRegion ); void moveClipRegion( sal_Int32 nX, sal_Int32 nY ); void intersectClipRegion( const tools::Rectangle& rRect ); void intersectClipRegion( const basegfx::B2DPolyPolygon& rRegion ); void setLayoutMode( ComplexTextLayoutFlags nLayoutMode ) { m_aGraphicsStack.front().m_nLayoutMode = nLayoutMode; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::LayoutMode; } void setDigitLanguage( LanguageType eLang ) { m_aGraphicsStack.front().m_aDigitLanguage = eLang; m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::DigitLanguage; } void setTextAlign( TextAlign eAlign ) { m_aGraphicsStack.front().m_aFont.SetAlignment( eAlign ); m_aGraphicsStack.front().m_nUpdateFlags |= GraphicsStateUpdateFlags::Font; } /* actual drawing functions */ void drawText( const Point& rPos, const OUString& rText, sal_Int32 nIndex, sal_Int32 nLen, bool bTextLines = true ); void drawTextArray( const Point& rPos, const OUString& rText, const long* pDXArray, sal_Int32 nIndex, sal_Int32 nLen ); void drawStretchText( const Point& rPos, sal_uLong nWidth, const OUString& rText, sal_Int32 nIndex, sal_Int32 nLen ); void drawText( const tools::Rectangle& rRect, const OUString& rOrigStr, DrawTextFlags nStyle ); void drawTextLine( const Point& rPos, long nWidth, FontStrikeout eStrikeout, FontLineStyle eUnderline, FontLineStyle eOverline, bool bUnderlineAbove ); void drawWaveTextLine( OStringBuffer& aLine, long nWidth, FontLineStyle eTextLine, Color aColor, bool bIsAbove ); void drawStraightTextLine( OStringBuffer& aLine, long nWidth, FontLineStyle eTextLine, Color aColor, bool bIsAbove ); void drawStrikeoutLine( OStringBuffer& aLine, long nWidth, FontStrikeout eStrikeout, Color aColor ); void drawStrikeoutChar( const Point& rPos, long nWidth, FontStrikeout eStrikeout ); void drawLine( const Point& rStart, const Point& rStop ); void drawLine( const Point& rStart, const Point& rStop, const LineInfo& rInfo ); void drawPolygon( const tools::Polygon& rPoly ); void drawPolyPolygon( const tools::PolyPolygon& rPolyPoly ); void drawPolyLine( const tools::Polygon& rPoly ); void drawPolyLine( const tools::Polygon& rPoly, const LineInfo& rInfo ); void drawPolyLine( const tools::Polygon& rPoly, const PDFWriter::ExtLineInfo& rInfo ); void drawPixel( const Point& rPt, const Color& rColor ); void drawRectangle( const tools::Rectangle& rRect ); void drawRectangle( const tools::Rectangle& rRect, sal_uInt32 nHorzRound, sal_uInt32 nVertRound ); void drawEllipse( const tools::Rectangle& rRect ); void drawArc( const tools::Rectangle& rRect, const Point& rStart, const Point& rStop, bool bWithPie, bool bWidthChord ); void drawBitmap( const Point& rDestPoint, const Size& rDestSize, const Bitmap& rBitmap, const Graphic& rGraphic ); void drawBitmap( const Point& rDestPoint, const Size& rDestSize, const BitmapEx& rBitmap ); void drawJPGBitmap( SvStream& rDCTData, bool bIsTrueColor, const Size& rSizePixel, const tools::Rectangle& rTargetArea, const Bitmap& rMask, const Graphic& rGraphic ); /// Stores the original PDF data from rGraphic as an embedded file. void createEmbeddedFile(const Graphic& rGraphic, ReferenceXObjectEmit& rEmit, sal_Int32 nBitmapObject); void drawGradient( const tools::Rectangle& rRect, const Gradient& rGradient ); void drawHatch( const tools::PolyPolygon& rPolyPoly, const Hatch& rHatch ); void drawWallpaper( const tools::Rectangle& rRect, const Wallpaper& rWall ); void drawTransparent( const tools::PolyPolygon& rPolyPoly, sal_uInt32 nTransparentPercent ); void beginTransparencyGroup(); void endTransparencyGroup( const tools::Rectangle& rBoundingBox, sal_uInt32 nTransparentPercent ); void emitComment( const char* pComment ); //--->i56629 named destinations sal_Int32 createNamedDest( const OUString& sDestName, const tools::Rectangle& rRect, sal_Int32 nPageNr, PDFWriter::DestAreaType eType ); //--->i59651 //emits output intent sal_Int32 emitOutputIntent(); //emits the document metadata sal_Int32 emitDocumentMetadata(); // links sal_Int32 createLink( const tools::Rectangle& rRect, sal_Int32 nPageNr ); sal_Int32 createDest( const tools::Rectangle& rRect, sal_Int32 nPageNr, PDFWriter::DestAreaType eType ); sal_Int32 registerDestReference( sal_Int32 nDestId, const tools::Rectangle& rRect, sal_Int32 nPageNr, PDFWriter::DestAreaType eType ); void setLinkDest( sal_Int32 nLinkId, sal_Int32 nDestId ); void setLinkURL( sal_Int32 nLinkId, const OUString& rURL ); void setLinkPropertyId( sal_Int32 nLinkId, sal_Int32 nPropertyId ); // screens sal_Int32 createScreen(const tools::Rectangle& rRect, sal_Int32 nPageNr); void setScreenURL(sal_Int32 nScreenId, const OUString& rURL); void setScreenStream(sal_Int32 nScreenId, const OUString& rURL); // outline sal_Int32 createOutlineItem( sal_Int32 nParent, const OUString& rText, sal_Int32 nDestID ); void setOutlineItemParent( sal_Int32 nItem, sal_Int32 nNewParent ); void setOutlineItemText( sal_Int32 nItem, const OUString& rText ); void setOutlineItemDest( sal_Int32 nItem, sal_Int32 nDestID ); // notes void createNote( const tools::Rectangle& rRect, const PDFNote& rNote, sal_Int32 nPageNr ); // structure elements sal_Int32 beginStructureElement( PDFWriter::StructElement eType, const OUString& rAlias ); void endStructureElement(); bool setCurrentStructureElement( sal_Int32 nElement ); bool setStructureAttribute( enum PDFWriter::StructAttribute eAttr, enum PDFWriter::StructAttributeValue eVal ); bool setStructureAttributeNumerical( enum PDFWriter::StructAttribute eAttr, sal_Int32 nValue ); void setStructureBoundingBox( const tools::Rectangle& rRect ); void setActualText( const OUString& rText ); void setAlternateText( const OUString& rText ); // transitional effects void setPageTransition( PDFWriter::PageTransition eType, sal_uInt32 nMilliSec, sal_Int32 nPageNr ); // controls sal_Int32 createControl( const PDFWriter::AnyWidget& rControl, sal_Int32 nPageNr = -1 ); // additional streams void addStream( const OUString& rMimeType, PDFOutputStream* pStream ); // helper: eventually begin marked content sequence and // emit a comment in debug case void MARK( const char* pString ); }; } // namespace vcl #endif //_VCL_PDFEXPORT_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */