include/svx/xmlgrhlp.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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/GraphicObject.hxx>
  26 #include <rtl/ref.hxx>
  27 #include <vector>
  28 #include <set>
  29 #include <unordered_map>
  30 #include <utility>
  31 #include <com/sun/star/document/XGraphicObjectResolver.hpp>
  32 #include <com/sun/star/document/XGraphicStorageHandler.hpp>
  33 #include <com/sun/star/document/XBinaryStreamResolver.hpp>
  34 #include <com/sun/star/embed/XStorage.hpp>
  35 #include <svx/svxdllapi.h>
  36
  37 enum class SvXMLGraphicHelperMode
  38 {
  39     Read, Write
  40 };
  41
  42 struct SvxGraphicHelperStream_Impl
  43 {
  44     css::uno::Reference < css::embed::XStorage > xStorage;
  45     css::uno::Reference < css::io::XStream > xStream;
  46 };
  47
  48 class SVX_DLLPUBLIC SvXMLGraphicHelper final : public cppu::WeakComponentImplHelper<css::document::XGraphicObjectResolver,
  49                                                                                     css::document::XGraphicStorageHandler,
  50                                                                                     css::document::XBinaryStreamResolver>
  51 {
  52 private:
  53     typedef ::std::vector< css::uno::Reference< css::io::XOutputStream > >    GraphicOutputStreamVector;
  54
  55     ::osl::Mutex                maMutex;
  56     css::uno::Reference < css::embed::XStorage > mxRootStorage;
  57     OUString             maCurStorageName;
  58     GraphicOutputStreamVector   maGrfStms;
  59
  60     std::unordered_map<OUString, css::uno::Reference<css::graphic::XGraphic>> maGraphicObjects;
  61     std::unordered_map<Graphic, std::pair<OUString, OUString>> maExportGraphics;
  62     std::unordered_map<void*, std::pair<OUString, OUString>> maExportPdf;
  63
  64     SvXMLGraphicHelperMode      meCreateMode;
  65     OUString                    maOutputMimeType;
  66
  67     SVX_DLLPRIVATE static bool          ImplGetStreamNames( const OUString& rURLStr,
  68                                                     OUString& rPictureStorageName,
  69                                                     OUString& rPictureStreamName );
  70     SVX_DLLPRIVATE css::uno::Reference < css::embed::XStorage >
  71                                             ImplGetGraphicStorage( const OUString& rPictureStorageName );
  72     SVX_DLLPRIVATE SvxGraphicHelperStream_Impl
  73                                             ImplGetGraphicStream( const OUString& rPictureStorageName,
  74                                                       const OUString& rPictureStreamName );
  75     SVX_DLLPRIVATE static OUString      ImplGetGraphicMimeType( const OUString& rFileName );
  76     SVX_DLLPRIVATE Graphic                  ImplReadGraphic( const OUString& rPictureStorageName,
  77                                                  const OUString& rPictureStreamName );
  78
  79                                 SvXMLGraphicHelper();
  80                                 virtual ~SvXMLGraphicHelper() override;
  81     void                        Init( const css::uno::Reference < css::embed::XStorage >& xXMLStorage,
  82                                       SvXMLGraphicHelperMode eCreateMode,
  83                                       const OUString& rGraphicMimeType = OUString() );
  84
  85     virtual void SAL_CALL       disposing() override;
  86
  87     SVX_DLLPRIVATE OUString implSaveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic,
  88                                             OUString & rOutMimeType, OUString const & rRequestName);
  89
  90 public:
  91                                 SvXMLGraphicHelper( SvXMLGraphicHelperMode eCreateMode );
  92
  93     static rtl::Reference<SvXMLGraphicHelper> Create( const css::uno::Reference < css::embed::XStorage >& rXMLStorage,
  94                                         SvXMLGraphicHelperMode eCreateMode );
  95     static rtl::Reference<SvXMLGraphicHelper>  Create( SvXMLGraphicHelperMode eCreateMode,
  96                                         const OUString& rMimeType = OUString() );
  97
  98 public:
  99
 100     // XGraphicObjectResolver
 101     virtual OUString SAL_CALL resolveGraphicObjectURL( const OUString& aURL ) override;
 102
 103     // XGraphicStorageHandler
 104     virtual css::uno::Reference<css::graphic::XGraphic> SAL_CALL
 105         loadGraphic(OUString const & aURL) override;
 106
 107     virtual css::uno::Reference<css::graphic::XGraphic> SAL_CALL
 108         loadGraphicFromOutputStream(css::uno::Reference<css::io::XOutputStream> const & rxOutputStream) override;
 109
 110     virtual OUString SAL_CALL
 111         saveGraphic(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic) override;
 112
 113     virtual OUString SAL_CALL
 114         saveGraphicByName(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic, OUString & rOutSavedMimeType, OUString const & rRequestName) override;
 115
 116     virtual css::uno::Reference<css::io::XInputStream> SAL_CALL
 117         createInputStream(css::uno::Reference<css::graphic::XGraphic> const & rxGraphic) override;
 118
 119     // XBinaryStreamResolver
 120     virtual css::uno::Reference< css::io::XInputStream > SAL_CALL getInputStream( const OUString& rURL ) override;
 121     virtual css::uno::Reference< css::io::XOutputStream > SAL_CALL createOutputStream(  ) override;
 122     virtual OUString SAL_CALL resolveOutputStream( const css::uno::Reference< css::io::XOutputStream >& rxBinaryStream ) override;
 123 };
 124
 125 #endif
 126
 127 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */