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Diffstat (limited to 'include/vcl/graphicfilter.hxx')
| -rw-r--r-- | include/vcl/graphicfilter.hxx | 392 |
1 files changed, 392 insertions, 0 deletions
diff --git a/include/vcl/graphicfilter.hxx b/include/vcl/graphicfilter.hxx new file mode 100644 index 000000000..0e0351dc4 --- /dev/null +++ b/include/vcl/graphicfilter.hxx @@ -0,0 +1,392 @@ +/* -*- 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_GRAPHICFILTER_HXX +#define INCLUDED_VCL_GRAPHICFILTER_HXX + +#include <tools/gen.hxx> +#include <vcl/dllapi.h> +#include <vcl/graph.hxx> +#include <vcl/errcode.hxx> +#include <o3tl/typed_flags_set.hxx> + +#include <memory> +#include <optional> + +namespace com::sun::star::beans { struct PropertyValue; } +namespace com::sun::star::uno { template <class E> class Sequence; } + +class INetURLObject; + +class FilterConfigCache; +class SvStream; +struct WmfExternal; +struct ConvertData; + +#define ERRCODE_GRFILTER_OPENERROR ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 1) +#define ERRCODE_GRFILTER_IOERROR ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 2) +#define ERRCODE_GRFILTER_FORMATERROR ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 3) +#define ERRCODE_GRFILTER_VERSIONERROR ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 4) +#define ERRCODE_GRFILTER_FILTERERROR ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 5) +#define ERRCODE_GRFILTER_TOOBIG ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 7) + +#define GRFILTER_OUTHINT_GREY 1 + +#define GRFILTER_FORMAT_NOTFOUND (sal_uInt16(0xFFFF)) +#define GRFILTER_FORMAT_DONTKNOW (sal_uInt16(0xFFFF)) + +enum class GraphicFilterImportFlags +{ + NONE = 0x000, + SetLogsizeForJpeg = 0x001, + DontSetLogsizeForJpeg = 0x002, + /// Only create a bitmap, do not read pixel data. + OnlyCreateBitmap = 0x020, + /// Read pixel data into an existing bitmap. + UseExistingBitmap = 0x040, +}; +namespace o3tl +{ + template<> struct typed_flags<GraphicFilterImportFlags> : is_typed_flags<GraphicFilterImportFlags, 0x0063> {}; +} + +#define IMP_BMP "SVBMP" +#define IMP_MOV "SVMOV" +#define IMP_SVMETAFILE "SVMETAFILE" +#define IMP_WMF "SVWMF" +#define IMP_EMF "SVEMF" +#define IMP_GIF "SVIGIF" +#define IMP_PNG "SVIPNG" +#define IMP_JPEG "SVIJPEG" +#define IMP_XBM "SVIXBM" +#define IMP_XPM "SVIXPM" +#define IMP_SVG "SVISVG" +#define IMP_PDF "SVIPDF" +#define IMP_TIFF "SVTIFF" +#define IMP_TGA "SVTGA" +#define IMP_PICT "SVPICT" +#define IMP_MET "SVMET" +#define IMP_RAS "SVRAS" +#define IMP_PCX "SVPCX" +#define IMP_EPS "SVIEPS" +#define IMP_PSD "SVPSD" +#define IMP_PCD "SVPCD" +#define IMP_PBM "SVPBM" +#define IMP_DXF "SVDXF" +#define IMP_WEBP "SVIWEBP" + +#define EXP_BMP "SVBMP" +#define EXP_SVMETAFILE "SVMETAFILE" +#define EXP_WMF "SVWMF" +#define EXP_EMF "SVEMF" +#define EXP_JPEG "SVEJPEG" +#define EXP_SVG "SVESVG" +#define EXP_PDF "SVEPDF" +#define EXP_PNG "SVEPNG" +#define EXP_TIFF "SVTIFF" +#define EXP_EPS "SVEEPS" +#define EXP_GIF "SVEGIF" +#define EXP_WEBP "SVEWEBP" + + +inline constexpr OUStringLiteral BMP_SHORTNAME = u"BMP"; +inline constexpr OUStringLiteral GIF_SHORTNAME = u"GIF"; +inline constexpr OUStringLiteral JPG_SHORTNAME = u"JPG"; +inline constexpr OUStringLiteral MET_SHORTNAME = u"MET"; +inline constexpr OUStringLiteral PCT_SHORTNAME = u"PCT"; +inline constexpr OUStringLiteral PNG_SHORTNAME = u"PNG"; +inline constexpr OUStringLiteral SVM_SHORTNAME = u"SVM"; +inline constexpr OUStringLiteral TIF_SHORTNAME = u"TIF"; +inline constexpr OUStringLiteral WMF_SHORTNAME = u"WMF"; +inline constexpr OUStringLiteral EMF_SHORTNAME = u"EMF"; +inline constexpr OUStringLiteral SVG_SHORTNAME = u"SVG"; +inline constexpr OUStringLiteral PDF_SHORTNAME = u"PDF"; +inline constexpr OUStringLiteral WEBP_SHORTNAME = u"WEBP"; + +// Info class for all supported file formats + +enum class GraphicFileFormat +{ + NOT = 0x0000, + BMP = 0x0001, + GIF = 0x0002, + JPG = 0x0003, + PCD = 0x0004, + PCX = 0x0005, + PNG = 0x0006, + TIF = 0x0007, + XBM = 0x0008, + XPM = 0x0009, + PBM = 0x000a, + PGM = 0x000b, + PPM = 0x000c, + RAS = 0x000d, + TGA = 0x000e, + PSD = 0x000f, + EPS = 0x0010, + WEBP = 0x0011, + DXF = 0x00f1, + MET = 0x00f2, + PCT = 0x00f3, + // retired SGF = 0x00f4, + SVM = 0x00f5, + WMF = 0x00f6, + // retired SGV = 0x00f7, + EMF = 0x00f8, + SVG = 0x00f9 +}; + + +class VCL_DLLPUBLIC GraphicDescriptor final +{ + SvStream* pFileStm; + + OUString aPathExt; + Size aPixSize; + Size aLogSize; + std::optional<Size> maPreferredLogSize; + std::optional<MapMode> maPreferredMapMode; + sal_uInt16 nBitsPerPixel; + sal_uInt16 nPlanes; + GraphicFileFormat nFormat; + bool bOwnStream; + sal_uInt8 mnNumberOfImageComponents; + bool bIsTransparent; + bool bIsAlpha; + + void ImpConstruct(); + + bool ImpDetectBMP( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectGIF( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectJPG( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectPCD( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectPCX( SvStream& rStm ); + bool ImpDetectPNG( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectTIF( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectXBM( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectXPM( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectPBM( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectPGM( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectPPM( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectRAS( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectTGA( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectPSD( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectEPS( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectWEBP( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectDXF( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectMET( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectPCT( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectSVM( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectWMF( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectEMF( SvStream& rStm, bool bExtendedInfo ); + bool ImpDetectSVG( SvStream& rStm, bool bExtendedInfo ); + GraphicDescriptor( const GraphicDescriptor& ) = delete; + GraphicDescriptor& operator=( const GraphicDescriptor& ) = delete; + +public: + + /** Ctor to set a filename + + Detect() must be called to identify the file + If the file has no unique header (Mtf's), the format + is determined from the extension */ + GraphicDescriptor( const INetURLObject& rPath ); + + /** Ctor using a stream + + Detect() must be called to identify the file + As some formats (Mtf's) do not have a unique header, it makes sense + to supply the file name (incl. ext.), so that the format can be + derived from the extension */ + GraphicDescriptor( SvStream& rInStream, const OUString* pPath ); + + ~GraphicDescriptor(); + + /** starts the detection + + if bExtendedInfo == true the file header is used to derive + as many properties as possible (size, color, etc.) */ + bool Detect( bool bExtendedInfo = false ); + + /** @return the file format, GraphicFileFormat::NOT if no format was recognized */ + GraphicFileFormat GetFileFormat() const { return nFormat; } + + /** @return graphic size in pixels or 0 size */ + const Size& GetSizePixel() const { return aPixSize; } + + /** @return the logical graphic size in 1/100mm or 0 size */ + const Size& GetSize_100TH_MM() const { return aLogSize; } + + /** + * Returns the logic size, according to the map mode available via GetPreferredMapMode(). Prefer + * this size over GetSize_100TH_MM(). + */ + const std::optional<Size>& GetPreferredLogSize() const { return maPreferredLogSize; } + + /** + * If available, this returns the map mode the graphic prefers, which may be other than pixel or + * 100th mm. Prefer this map mode over just assuming MapUnit::Map100thMM. + */ + const std::optional<MapMode>& GetPreferredMapMode() const { return maPreferredMapMode; } + + /** @return bits/pixel or 0 **/ + sal_uInt16 GetBitsPerPixel() const { return nBitsPerPixel; } + + /** @return number of color channels */ + sal_uInt8 GetNumberOfImageComponents() const { return mnNumberOfImageComponents; } + + /** @return whether image supports transparency */ + bool IsTransparent() const { return bIsTransparent; } + + /** @return whether image supports alpha values for translucent colours */ + bool IsAlpha() const { return bIsAlpha; } + + /** @return filter number that is needed by the GraphFilter to read this format */ + static OUString GetImportFormatShortName( GraphicFileFormat nFormat ); +}; + +/** Class to import and export graphic formats. */ +class VCL_DLLPUBLIC GraphicFilter +{ +public: + GraphicFilter( bool bUseConfig = true ); + ~GraphicFilter(); + + sal_uInt16 GetImportFormatCount() const; + sal_uInt16 GetImportFormatNumber( std::u16string_view rFormatName ); + sal_uInt16 GetImportFormatNumberForShortName( std::u16string_view rShortName ); + sal_uInt16 GetImportFormatNumberForTypeName( std::u16string_view rType ); + OUString GetImportFormatName( sal_uInt16 nFormat ); + OUString GetImportFormatTypeName( sal_uInt16 nFormat ); +#ifdef _WIN32 + OUString GetImportFormatMediaType( sal_uInt16 nFormat ); +#endif + OUString GetImportFormatShortName( sal_uInt16 nFormat ); + OUString GetImportWildcard( sal_uInt16 nFormat, sal_Int32 nEntry ); + + sal_uInt16 GetExportFormatCount() const; + sal_uInt16 GetExportFormatNumber( std::u16string_view rFormatName ); + sal_uInt16 GetExportFormatNumberForMediaType( std::u16string_view rShortName ); + sal_uInt16 GetExportFormatNumberForShortName( std::u16string_view rShortName ); + OUString GetExportInternalFilterName( sal_uInt16 nFormat ); + sal_uInt16 GetExportFormatNumberForTypeName( std::u16string_view rType ); + OUString GetExportFormatName( sal_uInt16 nFormat ); + OUString GetExportFormatMediaType( sal_uInt16 nFormat ); + OUString GetExportFormatShortName( sal_uInt16 nFormat ); + OUString GetExportWildcard( sal_uInt16 nFormat ); + bool IsExportPixelFormat( sal_uInt16 nFormat ); + + ErrCode ExportGraphic( const Graphic& rGraphic, const INetURLObject& rPath, + sal_uInt16 nFormat, + const css::uno::Sequence< css::beans::PropertyValue >* pFilterData = nullptr ); + ErrCode ExportGraphic( const Graphic& rGraphic, std::u16string_view rPath, + SvStream& rOStm, sal_uInt16 nFormat, + const css::uno::Sequence< css::beans::PropertyValue >* pFilterData = nullptr ); + + ErrCode CanImportGraphic( const INetURLObject& rPath, + sal_uInt16 nFormat, + sal_uInt16 * pDeterminedFormat); + + ErrCode ImportGraphic( Graphic& rGraphic, const INetURLObject& rPath, + sal_uInt16 nFormat = GRFILTER_FORMAT_DONTKNOW, + sal_uInt16 * pDeterminedFormat = nullptr, GraphicFilterImportFlags nImportFlags = GraphicFilterImportFlags::NONE ); + + ErrCode CanImportGraphic( std::u16string_view rPath, SvStream& rStream, + sal_uInt16 nFormat, + sal_uInt16 * pDeterminedFormat); + + ErrCode ImportGraphic( Graphic& rGraphic, std::u16string_view rPath, + SvStream& rStream, + sal_uInt16 nFormat = GRFILTER_FORMAT_DONTKNOW, + sal_uInt16 * pDeterminedFormat = nullptr, GraphicFilterImportFlags nImportFlags = GraphicFilterImportFlags::NONE ); + + /// Imports multiple graphics. + /// + /// The resulting graphic is added to rGraphics on success, nullptr is added on failure. + void ImportGraphics(std::vector< std::shared_ptr<Graphic> >& rGraphics, std::vector< std::unique_ptr<SvStream> > vStreams); + + /** + Tries to ensure all Graphic objects are available (Graphic::isAvailable()). Only an optimization, may + not process all items. + */ + void MakeGraphicsAvailableThreaded(std::vector< Graphic* >& rGraphics); + + // Setting sizeLimit limits how much will be read from the stream. + Graphic ImportUnloadedGraphic(SvStream& rIStream, sal_uInt64 sizeLimit = 0, const Size* pSizeHint = nullptr); + + const ErrCode& GetLastError() const { return *mxErrorEx;} + void ResetLastError(); + + Link<ConvertData&,bool> GetFilterCallback() const; + static GraphicFilter& GetGraphicFilter(); + static ErrCode LoadGraphic( const OUString& rPath, const OUString& rFilter, + Graphic& rGraphic, + GraphicFilter* pFilter = nullptr, + sal_uInt16* pDeterminedFormat = nullptr ); + + ErrCode compressAsPNG(const Graphic& rGraphic, SvStream& rOutputStream); + + static ErrCode readGIF(SvStream& rStream, Graphic& rGraphic, GfxLinkType& rLinkType); + static ErrCode readPNG(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType, + std::unique_ptr<sal_uInt8[]> & rpGraphicContent, sal_Int32& rGraphicContentSize); + static ErrCode readJPEG(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType, + GraphicFilterImportFlags nImportFlags); + static ErrCode readSVG(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType, + std::unique_ptr<sal_uInt8[]> & rpGraphicContent, sal_Int32& rGraphicContentSize); + static ErrCode readXBM(SvStream & rStream, Graphic & rGraphic); + static ErrCode readXPM(SvStream & rStream, Graphic & rGraphic); + + static ErrCode readWMF_EMF(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType, VectorGraphicDataType eType); + static ErrCode readWMF(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + static ErrCode readEMF(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + + static ErrCode readPDF(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + static ErrCode readTIFF(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + static ErrCode readWithTypeSerializer(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType, std::u16string_view aFilterName); + static ErrCode readBMP(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + static ErrCode readTGA(SvStream & rStream, Graphic & rGraphic); + static ErrCode readPICT(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + static ErrCode readMET(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + static ErrCode readRAS(SvStream & rStream, Graphic & rGraphic); + static ErrCode readPCX(SvStream & rStream, Graphic & rGraphic); + static ErrCode readEPS(SvStream & rStream, Graphic & rGraphic); + static ErrCode readPSD(SvStream & rStream, Graphic & rGraphic); + static ErrCode readPCD(SvStream & rStream, Graphic & rGraphic); + static ErrCode readPBM(SvStream & rStream, Graphic & rGraphic); + static ErrCode readDXF(SvStream & rStream, Graphic & rGraphic); + static ErrCode readWEBP(SvStream & rStream, Graphic & rGraphic, GfxLinkType & rLinkType); + +private: + OUString aFilterPath; + FilterConfigCache* pConfig; + + void ImplInit(); + ErrCode ImplSetError( ErrCode nError, const SvStream* pStm = nullptr ); + ErrCode ImpTestOrFindFormat( std::u16string_view rPath, SvStream& rStream, sal_uInt16& rFormat ); + + DECL_DLLPRIVATE_LINK( FilterCallback, ConvertData&, bool ); + + /** Information about errors during the GraphicFilter operation. */ + std::optional<ErrCode> mxErrorEx; + bool bUseConfig; +}; + +#endif // INCLUDED_VCL_GRAPHICFILTER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |