include/svx/xmlgrhlp.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
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  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_SVX_XMLGRHLP_HXX
  21 #define INCLUDED_SVX_XMLGRHLP_HXX
  22
  23 #include <cppuhelper/compbase.hxx>
  24 #include <osl/mutex.hxx>
  25 #include <vcl/graph.hxx>
  26 #include <rtl/ref.hxx>
  27 #include <vector>
  28 #include <unordered_map>
  29 #include <utility>
  30 #include <com/sun/star/document/XGraphicObjectResolver.hpp>
  31 #include <com/sun/star/document/XGraphicStorageHandler.hpp>
  32 #include <com/sun/star/document/XBinaryStreamResolver.hpp>
  33 #include <com/sun/star/embed/XStorage.hpp>
  34 #include <svx/svxdllapi.h>
  35
  36 enum class SvXMLGraphicHelperMode
  37 {
  38     Read, Write
  39 };
  40
  41 struct SvxGraphicHelperStream_Impl
  42 {
  43     css::uno::Reference < css::embed::XStorage > xStorage;
  44     css::uno::Reference < css::io::XStream > xStream;
  45 };
  46
  47 class SVX_DLLPUBLIC SvXMLGraphicHelper final : public cppu::WeakComponentImplHelper<css::document::XGraphicObjectResolver,
  48                                                                                     css::document::XGraphicStorageHandler,
  49                                                                                     css::document::XBinaryStreamResolver>
  50 {
  51 private:
  52     typedef ::std::vector< css::uno::Reference< css::io::XOutputStream > >    GraphicOutputStreamVector;
  53
  54     ::osl::Mutex                maMutex;
  55     css::uno::Reference < css::embed::XStorage > mxRootStorage;
  56     OUString             maCurStorageName;
  57     GraphicOutputStreamVector   maGrfStms;
  58
  59     std::unordered_map<OUString, css::uno::Reference<css::graphic::XGraphic>> maGraphicObjects;
  60     std::unordered_map<Graphic, std::pair<OUString, OUString>> maExportGraphics;
  61
  62     SvXMLGraphicHelperMode      meCreateMode;
  63     OUString                    maOutputMimeType;
  64
  65     SVX_DLLPRIVATE static bool          ImplGetStreamNames( const OUString& rURLStr,
  66                                                     OUString& rPictureStorageName,
  67                                                     OUString& rPictureStreamName );
  68     SVX_DLLPRIVATE css::uno::Reference < css::embed::XStorage >
  69                                             ImplGetGraphicStorage( const OUString& rPictureStorageName );
  70     SVX_DLLPRIVATE SvxGraphicHelperStream_Impl
  71                                             ImplGetGraphicStream( const OUString& rPictureStorageName,
  72                                                       const OUString& rPictureStreamName );
  73     SVX_DLLPRIVATE static OUString      ImplGetGraphicMimeType( const OUString& rFileName );
  74     SVX_DLLPRIVATE Graphic                  ImplReadGraphic( const OUString& rPictureStorageName,
  75                                                  const OUString& rPictureStreamName );
  76
  77                                 SvXMLGraphicHelper();
  78                                 virtual ~SvXMLGraphicHelper() override;
  79     void                        Init( const css::uno::Reference < css::embed::XStorage >& xXMLStorage,
  80                                       SvXMLGraphicHelperMode eCreateMode,
  81                                       const OUString& rGraphicMimeType = OUString() );
  82
  83     virtual void SAL_CALL       disposing() override;
  84
  85     SVX_DLLPRIVATE OUString implSaveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic,
  86                                             OUString & rOutMimeType, OUString const & rRequestName);
  87
  88 public:
  89                                 SvXMLGraphicHelper( SvXMLGraphicHelperMode eCreateMode );
  90
  91     static rtl::Reference<SvXMLGraphicHelper> Create( const css::uno::Reference < css::embed::XStorage >& rXMLStorage,
  92                                         SvXMLGraphicHelperMode eCreateMode );
  93     static rtl::Reference<SvXMLGraphicHelper>  Create( SvXMLGraphicHelperMode eCreateMode,
  94                                         const OUString& rMimeType = OUString() );
  95
  96 public:
  97
  98     // XGraphicObjectResolver
  99     virtual OUString SAL_CALL resolveGraphicObjectURL( const OUString& aURL ) override;
 100
 101     // XGraphicStorageHandler
 102     virtual css::uno::Reference<css::graphic::XGraphic> SAL_CALL
 103         loadGraphic(OUString const & aURL) override;
 104
 105     virtual css::uno::Reference<css::graphic::XGraphic> SAL_CALL
 106         loadGraphicFromOutputStream(css::uno::Reference<css::io::XOutputStream> const & rxOutputStream) override;
 107
 108     virtual OUString SAL_CALL
 109         saveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic) override;
 110
 111     virtual OUString SAL_CALL
 112         saveGraphicByName(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic, OUString & rOutSavedMimeType, OUString const & rRequestName) override;
 113
 114     virtual css::uno::Reference<css::io::XInputStream> SAL_CALL
 115         createInputStream(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic) override;
 116
 117     // XBinaryStreamResolver
 118     virtual css::uno::Reference< css::io::XInputStream > SAL_CALL getInputStream( const OUString& rURL ) override;
 119     virtual css::uno::Reference< css::io::XOutputStream > SAL_CALL createOutputStream(  ) override;
 120     virtual OUString SAL_CALL resolveOutputStream( const css::uno::Reference< css::io::XOutputStream >& rxBinaryStream ) override;
 121 };
 122
 123 #endif
 124
 125 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */