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| -rw-r--r-- | include/vcl/pdfextoutdevdata.hxx | 488 |
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diff --git a/include/vcl/pdfextoutdevdata.hxx b/include/vcl/pdfextoutdevdata.hxx new file mode 100644 index 000000000..45cb71682 --- /dev/null +++ b/include/vcl/pdfextoutdevdata.hxx @@ -0,0 +1,488 @@ +/* -*- 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_PDFEXTOUTDEVDATA_HXX +#define INCLUDED_VCL_PDFEXTOUTDEVDATA_HXX + +#include <vcl/dllapi.h> + +#include <vcl/pdfwriter.hxx> +#include <vcl/extoutdevdata.hxx> +#include <vector> +#include <memory> + +class Graphic; +class GDIMetaFile; + +namespace vcl +{ + +/* + A PDFExtOutDevBookmarkEntry is being created by the EditEngine if + a bookmark URL has been parsed. The Application is requested to take + care of each bookmark entry by emptying out the bookmark vector. +*/ +struct PDFExtOutDevBookmarkEntry +{ + /** ID of the link pointing to the bookmark, or -1 if the entry denotes a destination instead of a link. + */ + sal_Int32 nLinkId; + + /** ID of the named destination denoted by the bookmark, or -1 if the entry denotes a link instead of a named destination. + */ + sal_Int32 nDestId; + + /** link target name, respectively destination name + */ + OUString aBookmark; + + PDFExtOutDevBookmarkEntry() + :nLinkId( -1 ) + ,nDestId( -1 ) + { + } +}; + +/* + Class that is being set at the OutputDevice allowing the + application to send enhanced PDF commands like CreateLink +*/ +struct PageSyncData; +struct GlobalSyncData; +class VCL_DLLPUBLIC PDFExtOutDevData final : public ExtOutDevData +{ + + const OutputDevice& mrOutDev; + + bool mbTaggedPDF; + bool mbExportNotes; + bool mbExportNotesPages; + bool mbTransitionEffects; + bool mbUseLosslessCompression; + bool mbReduceImageResolution; + bool mbExportFormFields; + bool mbExportBookmarks; + bool mbExportHiddenSlides; + bool mbSinglePageSheets; + bool mbExportNDests; //i56629 + sal_Int32 mnPage; + sal_Int32 mnCompressionQuality; + css::lang::Locale maDocLocale; + + std::unique_ptr<PageSyncData> mpPageSyncData; + std::unique_ptr<GlobalSyncData> mpGlobalSyncData; + + std::vector< PDFExtOutDevBookmarkEntry > maBookmarks; + std::vector<OUString> maChapterNames; + +public: + + PDFExtOutDevData( const OutputDevice& rOutDev ); + virtual ~PDFExtOutDevData() override; + + bool PlaySyncPageAct( PDFWriter& rWriter, sal_uInt32& rCurGDIMtfAction, const GDIMetaFile& rMtf ); + void ResetSyncData(); + + void PlayGlobalActions( PDFWriter& rWriter ); + + bool GetIsExportNotes() const { return mbExportNotes;} + void SetIsExportNotes( const bool bExportNotes ); + + bool GetIsExportNotesPages() const { return mbExportNotesPages;} + void SetIsExportNotesPages( const bool bExportNotesPages ); + + bool GetIsExportTaggedPDF() const { return mbTaggedPDF;} + void SetIsExportTaggedPDF( const bool bTaggedPDF ); + + bool GetIsExportTransitionEffects() const { return mbTransitionEffects;} + void SetIsExportTransitionEffects( const bool bTransitionalEffects ); + + bool GetIsExportFormFields() const { return mbExportFormFields;} + void SetIsExportFormFields( const bool bExportFormFields ); + + bool GetIsExportBookmarks() const { return mbExportBookmarks;} + void SetIsExportBookmarks( const bool bExportBookmarks ); + + bool GetIsExportHiddenSlides() const { return mbExportHiddenSlides;} + void SetIsExportHiddenSlides( const bool bExportHiddenSlides ); + + void SetIsSinglePageSheets( const bool bSinglePageSheets ); + + bool GetIsExportNamedDestinations() const { return mbExportNDests;} //i56629 + void SetIsExportNamedDestinations( const bool bExportNDests ); //i56629 + + // PageNumber, Compression is being set by the PDFExport + sal_Int32 GetCurrentPageNumber() const { return mnPage;} + void SetCurrentPageNumber( const sal_Int32 nPage ); + + bool GetIsLosslessCompression() const { return mbUseLosslessCompression;} + void SetIsLosslessCompression( const bool bLosslessCompression ); + + void SetCompressionQuality( const sal_Int32 nQuality ); + + bool GetIsReduceImageResolution() const { return mbReduceImageResolution;} + void SetIsReduceImageResolution( const bool bReduceImageResolution ); + + const css::lang::Locale& GetDocumentLocale() const { return maDocLocale;} + void SetDocumentLocale( const css::lang::Locale& rLoc ); + + std::vector< PDFExtOutDevBookmarkEntry >& GetBookmarks() { return maBookmarks;} + const std::vector<OUString>& GetChapterNames() const { return maChapterNames; } + + const Graphic& GetCurrentGraphic() const; + + /** Start a new group of render output + + Use this method to group render output. + */ + void BeginGroup(); + + /** End render output + + This method ends grouped render output, that can be + represented by a GfxLink. This is typically used for + external graphic files, such as JPEGs, EPS files etc. + The BeginGroup/EndGroup calls must exactly enclose the + relevant OutputDevice calls issued to render the + graphic the normal way. + + @param rGraphic + The link to the original graphic + + @param nTransparency + Eight bit transparency value, with 0 denoting full opacity, + and 255 full transparency. + + @param rOutputRect + The output rectangle of the graphic. + + @param rVisibleOutputRect + The visible part of the output. This might be less than + rOutputRect, e.g. for cropped graphics. + */ + void EndGroup( const Graphic& rGraphic, + sal_uInt8 nTransparency, + const tools::Rectangle& rOutputRect, + const tools::Rectangle& rVisibleOutputRect ); + + /// Detect if stream is compressed enough to avoid de-compress / scale & re-compress + bool HasAdequateCompression( const Graphic &rGraphic, + const tools::Rectangle &rOutputRect, + const tools::Rectangle &rVisibleOutputRect ) const; + +//--->i56629 + /** Create a new named destination to be used in a link to this document from another PDF document + (see PDF spec 1.4, 8.2.1) + + @param sDestName + the name this destination will be addressed with from others PDF document + + @param rRect + target rectangle on page to be displayed if dest is jumped to + + @param nPageNr + number of page the dest is on (as returned by NewPage) + or -1 in which case the current page is used + + @returns + the destination id (to be used in SetLinkDest) or + -1 if page id does not exist + */ + sal_Int32 CreateNamedDest( const OUString& sDestName, const tools::Rectangle& rRect, sal_Int32 nPageNr = -1 ); + + /** registers a destination for which a destination ID needs to be known immediately, instead of later on setting it via + SetLinkDest. + + This is used in contexts where a destination is referenced by means other than a link. + + Later in the export process, a call to DescribeRegisteredDest must be made, providing the information about + the destination. + + @return + the unique Id of the destination + */ + sal_Int32 RegisterDest(); + + /** provides detailed information about a destination range which previously has been registered using RegisterDest. + */ + void DescribeRegisteredDest( sal_Int32 nDestId, const tools::Rectangle& rRect, sal_Int32 nPageNr, PDFWriter::DestAreaType eType = PDFWriter::DestAreaType::XYZ ); + +//<---i56629 + + /** Create a new destination to be used in a link + + @param rRect + target rectangle on page to be displayed if dest is jumped to + + @param nPageNr + number of page the dest is on (as returned by NewPage) + or -1 in which case the current page is used + + @param eType + what dest type to use + + @returns + the destination id (to be used in SetLinkDest) or + -1 if page id does not exist + */ + sal_Int32 CreateDest( const tools::Rectangle& rRect, sal_Int32 nPageNr = -1, PDFWriter::DestAreaType eType = PDFWriter::DestAreaType::XYZ ); + /** Create a new link on a page + + @param rRect + active rectangle of the link (that is the area that has to be + hit to activate the link) + + @param nPageNr + number of page the link is on (as returned by NewPage) + or -1 in which case the current page is used + + @param rAltText + Alt text for the link + + @returns + the link id (to be used in SetLinkDest, SetLinkURL) or + -1 if page id does not exist + */ + sal_Int32 CreateLink(const tools::Rectangle& rRect, OUString const& rAltText, sal_Int32 nPageNr = -1); + + /// Create a Screen annotation. + sal_Int32 CreateScreen(const tools::Rectangle& rRect, sal_Int32 nPageNr); + + /** Set the destination for a link + <p>will change a URL type link to a dest link if necessary</p> + + @param nLinkId + the link to be changed + + @param nDestId + the dest the link shall point to + */ + void SetLinkDest( sal_Int32 nLinkId, sal_Int32 nDestId ); + /** Set the URL for a link + <p>will change a dest type link to a URL type link if necessary</p> + @param nLinkId + the link to be changed + + @param rURL + the URL the link shall point to. + there will be no error checking or any kind of + conversion done to this parameter execept this: + it will be output as 7bit Ascii. The URL + will appear literally in the PDF file produced + */ + void SetLinkURL( sal_Int32 nLinkId, const OUString& rURL ); + + /// Set URL for a linked Screen annotation. + void SetScreenURL(sal_Int32 nScreenId, const OUString& rURL); + /// Set URL for an embedded Screen annotation. + void SetScreenStream(sal_Int32 nScreenId, const OUString& rURL); + + /** Create a new outline item + + @param nParent + declares the parent of the new item in the outline hierarchy. + An invalid value will result in a new toplevel item. + + @param rText + sets the title text of the item + + @param nDestID + declares which Dest (created with CreateDest) the outline item + will point to + + @returns + the outline item id of the new item + */ + sal_Int32 CreateOutlineItem( sal_Int32 nParent, const OUString& rText, sal_Int32 nDestID ); + + /** Create a new note on a page + + @param rRect + active rectangle of the note (that is the area that has to be + hit to popup the annotation) + + @param rNote + specifies the contents of the note + + @param nPageNr + number of page the note is on (as returned by NewPage) + or -1 in which case the current page is used + */ + void CreateNote( const tools::Rectangle& rRect, const PDFNote& rNote, sal_Int32 nPageNr = -1 ); + + /** begin a new logical structure element + + BeginStructureElement/EndStructureElement calls build the logical structure + of the PDF - the basis for tagged PDF. Structural elements are implemented + using marked content tags. Each structural element can contain sub elements + (e.g. a section can contain a heading and a paragraph). The structure hierarchy + is build automatically from the Begin/EndStructureElement calls. + + A structural element need not be contained on one page; e.g. paragraphs often + run from one page to the next. In this case the corresponding EndStructureElement + must be called while drawing the next page. + + BeginStructureElement and EndStructureElement must be called only after + PDFWriter::NewPage has been called and before + PDFWriter::Emit gets called. The current page + number is an implicit context parameter for Begin/EndStructureElement. + + For pagination artifacts that are not part of the logical structure + of the document (like header, footer or page number) the special + StructElement NonStructElement exists. To place content + outside of the structure tree simply call + BeginStructureElement( NonStructElement ) then draw your + content and then call EndStructureElement(). Any children + of a NonStructElement will not be part of the structure as well. + + @param eType + denotes what kind of element to begin (e.g. a heading or paragraph) + + @param rAlias + the specified alias will be used as structure tag. Also an entry in the PDF's + role map will be created mapping alias to regular structure type. + + @returns + the id of the newly created structural element + */ + sal_Int32 BeginStructureElement( PDFWriter::StructElement eType, const OUString& rAlias = OUString() ); + /** end a logical structure element + + @see BeginStructureElement + */ + void EndStructureElement(); + /** set the current structure element + + <p> + For different purposes it may be useful to paint a structure element's + content discontinuously. In that case an already existing structure element + can be appended to by using SetCurrentStructureElement. The + referenced structure element becomes the current structure element with + all consequences: all following structure elements are appended as children + of the current element. + </p> + + @param nElement + the id of the new current structure element + + @returns + True if the current structure element could be set successfully + False if the current structure element could not be changed + (e.g. if the passed element id is invalid) + */ + bool SetCurrentStructureElement( sal_Int32 nElement ); + /** get the current structure element id + + @returns + the id of the current structure element + */ + sal_Int32 GetCurrentStructureElement() const; + + /** set a structure attribute on the current structural element + + SetStructureAttribute sets an attribute of the current structural element to a + new value. A consistency check is performed before actually setting the value; + if the check fails, the function returns False and the attribute remains + unchanged. + + @param eAttr + denotes what attribute to change + + @param eVal + the value to set the attribute to + */ + void SetStructureAttribute( PDFWriter::StructAttribute eAttr, PDFWriter::StructAttributeValue eVal ); + /** set a structure attribute on the current structural element + + SetStructureAttributeNumerical sets an attribute of the current structural element + to a new numerical value. A consistency check is performed before actually setting + the value; if the check fails, the function returns False and the attribute + remains unchanged. + + @param eAttr + denotes what attribute to change + + @param nValue + the value to set the attribute to + */ + void SetStructureAttributeNumerical( PDFWriter::StructAttribute eAttr, sal_Int32 nValue ); + /** set the bounding box of a structural element + + SetStructureBoundingBox sets the BBox attribute to a new value. Since the BBox + attribute can only be applied to Table, Figure, + Form and Formula elements, a call of this function + for other element types will be ignored and the BBox attribute not be set. + + @param rRect + the new bounding box for the structural element + */ + void SetStructureBoundingBox( const tools::Rectangle& rRect ); + + /** set the ActualText attribute of a structural element + + ActualText contains the Unicode text without layout artifacts that is shown by + a structural element. For example if a line is ended prematurely with a break in + a word and continued on the next line (e.g. "happen-<newline>stance") the + corresponding ActualText would contain the unbroken line (e.g. "happenstance"). + + @param rText + contains the complete logical text the structural element displays. + */ + void SetActualText( const OUString& rText ); + + /** set the Alt attribute of a strutural element + + Alt is s replacement text describing the contents of a structural element. This + is mainly used by accessibility applications; e.g. a screen reader would read + the Alt replacement text for an image to a visually impaired user. + + @param rText + contains the replacement text for the structural element + */ + void SetAlternateText( const OUString& rText ); + + /** Sets the transitional effect to be applied when the current page gets shown. + + @param eType + the kind of effect to be used; use Regular to disable transitional effects + for this page + + @param nMilliSec + the duration of the transitional effect in milliseconds; + set 0 to disable transitional effects + */ + void SetPageTransition( PDFWriter::PageTransition eType, sal_uInt32 nMilliSec ); + + /** create a new form control + + This function creates a new form control in the PDF and sets its various + properties. Do not pass an actual AnyWidget as rControlType + will be cast to the type described by the type member. + + @param rControlType + a descendant of AnyWidget determining the control's properties + */ + void CreateControl( const PDFWriter::AnyWidget& rControlType ); +}; + +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |