filter: svg: js engine: support for bitmaps in slide background

When a slide background includes one or more bitmaps, they are
exported only once.
This avoid to export the same bitmap more than once when it is
embedded in several backgound slides and to export only one bitmap for
the tile style.

Change-Id: Ia5b75f7805541486b76a81f86907e88ed9d4764a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/109835
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Marco Cecchetti <marco.cecchetti@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/111842
Tested-by: Jenkins
Reviewed-by: Andras Timar <andras.timar@collabora.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/filter/source/svg/svgfilter.hxx b/filter/source/svg/svgfilter.hxx
index b761e1768e9c..9f612440ebdf 100644
--- a/filter/source/svg/svgfilter.hxx
+++ b/filter/source/svg/svgfilter.hxx
@@ -153,6 +153,9 @@ struct EqualityBitmap
                      const ObjectRepresentation& rObjRep2 ) const;
 };
 
+// This must match the same type definition in svgwriter.hxx
+typedef std::unordered_map< BitmapChecksum, std::unique_ptr< GDIMetaFile > > MetaBitmapActionMap;
+
 class SVGFontExport;
 class SVGActionWriter;
 class EditFieldInfo;
@@ -210,6 +213,7 @@ private:
                                         mTextShapeIdListMap;
     MetaBitmapActionSet                 mEmbeddedBitmapActionSet;
     ObjectMap                           mEmbeddedBitmapActionMap;
+    MetaBitmapActionMap                 maBitmapActionMap;
     std::vector< Reference< css::drawing::XDrawPage > > mMasterPageTargets;
 
     Link<EditFieldInfo*,void>           maOldFieldHdl;
@@ -229,6 +233,7 @@ private:
     void                            implEmbedBulletGlyphs();
     void                            implEmbedBulletGlyph( sal_Unicode cBullet, const OUString & sPathData );
     void                            implExportTextEmbeddedBitmaps();
+    void                            implExportBackgroundBitmaps();
     void                            implGenerateScript();
 
     bool                            implExportDocument();