include/vcl/graphicfilter.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_GRAPHICFILTER_HXX
  21 #define INCLUDED_VCL_GRAPHICFILTER_HXX
  22
  23 #include <tools/gen.hxx>
  24 #include <vcl/dllapi.h>
  25 #include <vcl/graph.hxx>
  26 #include <vcl/errcode.hxx>
  27 #include <o3tl/typed_flags_set.hxx>
  28
  29 #include <memory>
  30
  31 namespace com { namespace sun { namespace star { namespace beans { struct PropertyValue; } } } }
  32 namespace com { namespace sun { namespace star { namespace uno { template <class E> class Sequence; } } } }
  33
  34 class INetURLObject;
  35
  36 class FilterConfigCache;
  37 class SvStream;
  38 struct WmfExternal;
  39 struct ConvertData;
  40
  41 #define ERRCODE_GRFILTER_OPENERROR    ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 1)
  42 #define ERRCODE_GRFILTER_IOERROR      ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 2)
  43 #define ERRCODE_GRFILTER_FORMATERROR  ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 3)
  44 #define ERRCODE_GRFILTER_VERSIONERROR ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 4)
  45 #define ERRCODE_GRFILTER_FILTERERROR  ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 5)
  46 #define ERRCODE_GRFILTER_TOOBIG       ErrCode(ErrCodeArea::Vcl, ErrCodeClass::General, 7)
  47
  48 #define GRFILTER_OUTHINT_GREY       1
  49
  50 #define GRFILTER_FORMAT_NOTFOUND    (sal_uInt16(0xFFFF))
  51 #define GRFILTER_FORMAT_DONTKNOW    (sal_uInt16(0xFFFF))
  52
  53 enum class GraphicFilterImportFlags
  54 {
  55     NONE                   = 0x000,
  56     SetLogsizeForJpeg      = 0x001,
  57     DontSetLogsizeForJpeg  = 0x002,
  58     ForPreview             = 0x004,
  59     /// Only create a bitmap, do not read pixel data.
  60     OnlyCreateBitmap       = 0x020,
  61     /// Read pixel data into an existing bitmap.
  62     UseExistingBitmap      = 0x040,
  63 };
  64 namespace o3tl
  65 {
  66     template<> struct typed_flags<GraphicFilterImportFlags> : is_typed_flags<GraphicFilterImportFlags, 0x0067> {};
  67 }
  68
  69 #define IMP_BMP                 "SVBMP"
  70 #define IMP_MOV                 "SVMOV"
  71 #define IMP_SVMETAFILE          "SVMETAFILE"
  72 #define IMP_WMF                 "SVWMF"
  73 #define IMP_EMF                 "SVEMF"
  74 #define IMP_GIF                 "SVIGIF"
  75 #define IMP_PNG                 "SVIPNG"
  76 #define IMP_JPEG                "SVIJPEG"
  77 #define IMP_XBM                 "SVIXBM"
  78 #define IMP_XPM                 "SVIXPM"
  79 #define IMP_SVG                 "SVISVG"
  80 #define IMP_PDF                 "SVIPDF"
  81 #define EXP_BMP                 "SVBMP"
  82 #define EXP_SVMETAFILE          "SVMETAFILE"
  83 #define EXP_WMF                 "SVWMF"
  84 #define EXP_EMF                 "SVEMF"
  85 #define EXP_JPEG                "SVEJPEG"
  86 #define EXP_SVG                 "SVESVG"
  87 #define EXP_PDF                 "SVEPDF"
  88 #define EXP_PNG                 "SVEPNG"
  89
  90 #define BMP_SHORTNAME           "BMP"
  91 #define GIF_SHORTNAME           "GIF"
  92 #define JPG_SHORTNAME           "JPG"
  93 #define MET_SHORTNAME           "MET"
  94 #define PCT_SHORTNAME           "PCT"
  95 #define PNG_SHORTNAME           "PNG"
  96 #define SVM_SHORTNAME           "SVM"
  97 #define TIF_SHORTNAME           "TIF"
  98 #define WMF_SHORTNAME           "WMF"
  99 #define EMF_SHORTNAME           "EMF"
 100 #define SVG_SHORTNAME           "SVG"
 101 #define PDF_SHORTNAME           "PDF"
 102
 103 //  Info class for all supported file formats
 104
 105 enum class GraphicFileFormat
 106 {
 107     NOT = 0x0000,
 108     BMP = 0x0001,
 109     GIF = 0x0002,
 110     JPG = 0x0003,
 111     PCD = 0x0004,
 112     PCX = 0x0005,
 113     PNG = 0x0006,
 114     TIF = 0x0007,
 115     XBM = 0x0008,
 116     XPM = 0x0009,
 117     PBM = 0x000a,
 118     PGM = 0x000b,
 119     PPM = 0x000c,
 120     RAS = 0x000d,
 121     TGA = 0x000e,
 122     PSD = 0x000f,
 123     EPS = 0x0010,
 124     DXF = 0x00f1,
 125     MET = 0x00f2,
 126     PCT = 0x00f3,
 127     // retired SGF = 0x00f4,
 128     SVM = 0x00f5,
 129     WMF = 0x00f6,
 130     // retired SGV = 0x00f7,
 131     EMF = 0x00f8,
 132     SVG = 0x00f9
 133 };
 134
 135
 136 class VCL_DLLPUBLIC GraphicDescriptor final
 137 {
 138     SvStream*           pFileStm;
 139
 140     OUString            aPathExt;
 141     Size                aPixSize;
 142     Size                aLogSize;
 143     sal_uInt16          nBitsPerPixel;
 144     sal_uInt16          nPlanes;
 145     GraphicFileFormat   nFormat;
 146     bool const          bOwnStream;
 147     sal_uInt8 mnNumberOfImageComponents;
 148
 149     void                ImpConstruct();
 150
 151     bool            ImpDetectBMP( SvStream& rStm, bool bExtendedInfo );
 152     bool            ImpDetectGIF( SvStream& rStm, bool bExtendedInfo );
 153     bool            ImpDetectJPG( SvStream& rStm, bool bExtendedInfo );
 154     bool            ImpDetectPCD( SvStream& rStm, bool bExtendedInfo );
 155     bool            ImpDetectPCX( SvStream& rStm );
 156     bool            ImpDetectPNG( SvStream& rStm, bool bExtendedInfo );
 157     bool            ImpDetectTIF( SvStream& rStm, bool bExtendedInfo );
 158     bool            ImpDetectXBM( SvStream& rStm, bool bExtendedInfo );
 159     bool            ImpDetectXPM( SvStream& rStm, bool bExtendedInfo );
 160     bool            ImpDetectPBM( SvStream& rStm, bool bExtendedInfo );
 161     bool            ImpDetectPGM( SvStream& rStm, bool bExtendedInfo );
 162     bool            ImpDetectPPM( SvStream& rStm, bool bExtendedInfo );
 163     bool            ImpDetectRAS( SvStream& rStm, bool bExtendedInfo );
 164     bool            ImpDetectTGA( SvStream& rStm, bool bExtendedInfo );
 165     bool            ImpDetectPSD( SvStream& rStm, bool bExtendedInfo );
 166     bool            ImpDetectEPS( SvStream& rStm, bool bExtendedInfo );
 167     bool            ImpDetectDXF( SvStream& rStm, bool bExtendedInfo );
 168     bool            ImpDetectMET( SvStream& rStm, bool bExtendedInfo );
 169     bool            ImpDetectPCT( SvStream& rStm, bool bExtendedInfo );
 170     bool            ImpDetectSVM( SvStream& rStm, bool bExtendedInfo );
 171     bool            ImpDetectWMF( SvStream& rStm, bool bExtendedInfo );
 172     bool            ImpDetectEMF( SvStream& rStm, bool bExtendedInfo );
 173     bool            ImpDetectSVG( SvStream& rStm, bool bExtendedInfo );
 174     GraphicDescriptor( const GraphicDescriptor& ) = delete;
 175     GraphicDescriptor& operator=( const GraphicDescriptor& ) = delete;
 176
 177 public:
 178
 179     /** Ctor to set a filename
 180
 181         Detect() must be called to identify the file
 182         If the file has no unique header (Mtf's), the format
 183         is determined from the extension */
 184     GraphicDescriptor( const INetURLObject& rPath );
 185
 186     /** Ctor using a stream
 187
 188         Detect() must be called to identify the file
 189         As some formats (Mtf's) do not have a unique header, it makes sense
 190         to supply the file name (incl. ext.), so that the format can be
 191         derived from the extension */
 192     GraphicDescriptor( SvStream& rInStream, const OUString* pPath );
 193
 194     ~GraphicDescriptor();
 195
 196     /** starts the detection
 197
 198         if bExtendedInfo == true the file header is used to derive
 199         as many properties as possible (size, color, etc.) */
 200     bool    Detect( bool bExtendedInfo = false );
 201
 202     /** @return the file format, GraphicFileFormat::NOT if no format was recognized */
 203     GraphicFileFormat  GetFileFormat() const { return nFormat; }
 204
 205     /** @return graphic size in pixels or 0 size */
 206     const Size&     GetSizePixel() const { return aPixSize; }
 207
 208     /** @return the logical graphic size in 1/100mm or 0 size */
 209     const Size&     GetSize_100TH_MM() const { return aLogSize; }
 210
 211     /** @return bits/pixel or 0 **/
 212     sal_uInt16          GetBitsPerPixel() const { return nBitsPerPixel; }
 213
 214     /** @return number of color channels */
 215     sal_uInt8 GetNumberOfImageComponents() const { return mnNumberOfImageComponents; }
 216
 217     /** @return filter number that is needed by the GraphFilter to read this format */
 218     static OUString GetImportFormatShortName( GraphicFileFormat nFormat );
 219 };
 220
 221 /** Information about errors during the GraphicFilter operation. */
 222 struct FilterErrorEx
 223 {
 224     ErrCode   nStreamError;
 225
 226     FilterErrorEx() : nStreamError( ERRCODE_NONE ) {}
 227 };
 228
 229 /** Class to import and export graphic formats. */
 230 class VCL_DLLPUBLIC GraphicFilter
 231 {
 232 public:
 233                     GraphicFilter( bool bUseConfig = true );
 234                     ~GraphicFilter();
 235
 236     sal_uInt16      GetImportFormatCount();
 237     sal_uInt16      GetImportFormatNumber( const OUString& rFormatName );
 238     sal_uInt16      GetImportFormatNumberForShortName( const OUString& rShortName );
 239     sal_uInt16      GetImportFormatNumberForTypeName( const OUString& rType );
 240     OUString        GetImportFormatName( sal_uInt16 nFormat );
 241     OUString        GetImportFormatTypeName( sal_uInt16 nFormat );
 242 #ifdef _WIN32
 243     OUString        GetImportFormatMediaType( sal_uInt16 nFormat );
 244 #endif
 245     OUString        GetImportFormatShortName( sal_uInt16 nFormat );
 246     OUString        GetImportWildcard( sal_uInt16 nFormat, sal_Int32 nEntry );
 247
 248     sal_uInt16      GetExportFormatCount();
 249     sal_uInt16      GetExportFormatNumber( const OUString& rFormatName );
 250     sal_uInt16      GetExportFormatNumberForMediaType( const OUString& rShortName );
 251     sal_uInt16      GetExportFormatNumberForShortName( const OUString& rShortName );
 252     OUString        GetExportInternalFilterName( sal_uInt16 nFormat );
 253     sal_uInt16      GetExportFormatNumberForTypeName( const OUString& rType );
 254     OUString        GetExportFormatName( sal_uInt16 nFormat );
 255     OUString        GetExportFormatMediaType( sal_uInt16 nFormat );
 256     OUString        GetExportFormatShortName( sal_uInt16 nFormat );
 257     OUString        GetExportWildcard( sal_uInt16 nFormat );
 258     bool            IsExportPixelFormat( sal_uInt16 nFormat );
 259
 260     ErrCode             ExportGraphic( const Graphic& rGraphic, const INetURLObject& rPath,
 261                                        sal_uInt16 nFormat,
 262                                        const css::uno::Sequence< css::beans::PropertyValue >* pFilterData = nullptr );
 263     ErrCode             ExportGraphic( const Graphic& rGraphic, const OUString& rPath,
 264                                        SvStream& rOStm, sal_uInt16 nFormat,
 265                                        const css::uno::Sequence< css::beans::PropertyValue >* pFilterData = nullptr );
 266
 267     ErrCode             CanImportGraphic( const INetURLObject& rPath,
 268                                       sal_uInt16 nFormat,
 269                                       sal_uInt16 * pDeterminedFormat);
 270
 271     ErrCode             ImportGraphic( Graphic& rGraphic, const INetURLObject& rPath,
 272                                    sal_uInt16 nFormat = GRFILTER_FORMAT_DONTKNOW,
 273                                    sal_uInt16 * pDeterminedFormat = nullptr, GraphicFilterImportFlags nImportFlags = GraphicFilterImportFlags::NONE );
 274
 275     ErrCode             CanImportGraphic( const OUString& rPath, SvStream& rStream,
 276                                       sal_uInt16 nFormat,
 277                                       sal_uInt16 * pDeterminedFormat);
 278
 279     ErrCode             ImportGraphic( Graphic& rGraphic, const OUString& rPath,
 280                                    SvStream& rStream,
 281                                    sal_uInt16 nFormat = GRFILTER_FORMAT_DONTKNOW,
 282                                    sal_uInt16 * pDeterminedFormat = nullptr, GraphicFilterImportFlags nImportFlags = GraphicFilterImportFlags::NONE,
 283                                    WmfExternal const *pExtHeader = nullptr );
 284
 285     /// Imports multiple graphics.
 286     ///
 287     /// The resulting graphic is added to rGraphics on success, nullptr is added on failure.
 288     void ImportGraphics(std::vector< std::shared_ptr<Graphic> >& rGraphics, std::vector< std::unique_ptr<SvStream> > vStreams);
 289
 290     ErrCode             ImportGraphic( Graphic& rGraphic, const OUString& rPath,
 291                                    SvStream& rStream,
 292                                    sal_uInt16 nFormat,
 293                                    sal_uInt16 * pDeterminedFormat, GraphicFilterImportFlags nImportFlags,
 294                                    const css::uno::Sequence< css::beans::PropertyValue >* pFilterData,
 295                                    WmfExternal const *pExtHeader = nullptr );
 296
 297     // Setting sizeLimit limits how much will be read from the stream.
 298     Graphic ImportUnloadedGraphic(SvStream& rIStream, sal_uInt64 sizeLimit = 0, Size* pSizeHint = nullptr);
 299
 300     const FilterErrorEx&    GetLastError() const { return *pErrorEx;}
 301     void                    ResetLastError();
 302
 303     const Link<ConvertData&,bool> GetFilterCallback() const;
 304     static GraphicFilter& GetGraphicFilter();
 305     static ErrCode  LoadGraphic( const OUString& rPath, const OUString& rFilter,
 306                      Graphic& rGraphic,
 307                      GraphicFilter* pFilter = nullptr,
 308                      sal_uInt16* pDeterminedFormat = nullptr );
 309
 310     ErrCode         compressAsPNG(const Graphic& rGraphic, SvStream& rOutputStream);
 311
 312     void preload();
 313
 314 private:
 315     OUString        aFilterPath;
 316     FilterConfigCache*  pConfig;
 317
 318     void            ImplInit();
 319     ErrCode         ImplSetError( ErrCode nError, const SvStream* pStm = nullptr );
 320     ErrCode         ImpTestOrFindFormat( const OUString& rPath, SvStream& rStream, sal_uInt16& rFormat );
 321
 322                     DECL_LINK( FilterCallback, ConvertData&, bool );
 323
 324     std::unique_ptr<FilterErrorEx> pErrorEx;
 325     bool const                     bUseConfig;
 326 };
 327
 328 #endif // INCLUDED_VCL_GRAPHICFILTER_HXX
 329
 330 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */