Resolves: #i125171# support lossless embedding of linked jpegs...

in writer for PDF export

(cherry picked from commit 131669af)

Conflicts:
	sw/source/core/doc/notxtfrm.cxx

Add missing includes to fix build break

(cherry picked from commit 662b23eb)

Conflicts:
	sw/source/core/doc/notxtfrm.cxx

1e2c208ac91c8e666e4f3f6f89cd917736cdc44d

Change-Id: Ie560fa05964b79240fbd97825be74b0543c97aba

sw/source/core/doc/notxtfrm.cxx

@@ -75,6 +75,8 @@
 #include <basegfx/matrix/b2dhommatrixtools.hxx>
 #include <drawinglayer/processor2d/processor2dtools.hxx>
 #include <txtfly.hxx>
+#include <vcl/graphicfilter.hxx>
+#include <vcl/pdfextoutdevdata.hxx>
 
 using namespace com::sun::star;
 
@@ -754,7 +756,7 @@ bool paintUsingPrimitivesHelper(
 }
 
 void paintGraphicUsingPrimitivesHelper(OutputDevice & rOutputDevice,
-         Graphic const& rGraphic, GraphicAttr const& rGraphicAttr,
+         GraphicObject const& rGrfObj, GraphicAttr const& rGraphicAttr,
          SwRect const& rAlignedGrfArea)
 {
     // unify using GraphicPrimitive2D
@@ -768,12 +770,55 @@ void paintGraphicUsingPrimitivesHelper(OutputDevice & rOutputDevice,
         basegfx::tools::createScaleTranslateB2DHomMatrix(
             aTargetRange.getRange(),
             aTargetRange.getMinimum()));
+
     drawinglayer::primitive2d::Primitive2DSequence aContent(1);
+    bool bDone(false);
+
+    // #i125171# The mechanism to get lossless jpegs into pdf is based on having the original
+    // file data (not the bitmap data) at the Graphic in the GfxLink (which has *nothing* to
+    // do with the graphic being linked). This works well for DrawingLayer GraphicObjects (linked
+    // and unlinked) but fails for linked Writer GraphicObjects. These have the URL in the
+    // GraphicObject, but no GfxLink with the original file data when it's a linked graphic.
+    // Since this blows up PDF size by a factor of 10 (the graphics get embedded as pixel maps
+    // then) it is okay to add this workarund: In the needed case, load the graphic in a way to
+    // get the GfxLink in the needed form and use that Graphic temporarily. Do this only when
+    // - we have PDF export
+    // - the GraphicObject is linked
+    // - the Graphic has no GfxLink
+    // - LosslessCompression is activated
+    // - it's indeed a jpeg graphic (could be checked by the url ending, but is more reliable to check later)
+    // In all other cases (normal repaint, print, etc...) use the available Graphic with the
+    // already loaded pixel graphic as before this change.
+    if (rOutputDevice.GetExtOutDevData() && rGrfObj.HasLink() && !rGrfObj.GetGraphic().IsLink())
+    {
+        const vcl::PDFExtOutDevData* pPDFExt = dynamic_cast< const vcl::PDFExtOutDevData* >(rOutputDevice.GetExtOutDevData());
+
+        if (pPDFExt && pPDFExt->GetIsLosslessCompression())
+        {
+            Graphic aTempGraphic;
+            INetURLObject aURL(rGrfObj.GetLink());
 
+            if (GRFILTER_OK == GraphicFilter::GetGraphicFilter().ImportGraphic(aTempGraphic, aURL))
+            {
+                if(aTempGraphic.IsLink() && GFX_LINK_TYPE_NATIVE_JPG == aTempGraphic.GetLink().GetType())
+                {
                     aContent[0] = new drawinglayer::primitive2d::GraphicPrimitive2D(
                         aTargetTransform,
-        rGraphic,
+                        aTempGraphic,
                         rGraphicAttr);
+                    bDone = true;
+                }
+            }
+        }
+    }
+
+    if(!bDone)
+    {
+        aContent[0] = new drawinglayer::primitive2d::GraphicPrimitive2D(
+            aTargetTransform,
+            rGrfObj.GetGraphic(),
+            rGraphicAttr);
+    }
 
     paintUsingPrimitivesHelper(
         rOutputDevice,
@@ -905,7 +950,7 @@ void SwNoTxtFrm::PaintPicture( OutputDevice* pOut, const SwRect &rGrfArea ) cons
                 else
                 {
                     paintGraphicUsingPrimitivesHelper(*pOut,
-                            rGrfObj.GetGraphic(), aGrfAttr, aAlignedGrfArea);
+                            rGrfObj, aGrfAttr, aAlignedGrfArea);
                 }
             }
             else

sw/source/core/inc/frmtool.hxx

@@ -40,7 +40,7 @@ class XFillGradientItem;
 class SdrMarkList;
 class SwNodeIndex;
 class OutputDevice;
-class Graphic;
+class GraphicObject;
 class GraphicAttr;
 class SwPageDesc;
 class SwFrmFmts;
@@ -72,7 +72,7 @@ bool DrawFillAttributes(
 
 void paintGraphicUsingPrimitivesHelper(
         OutputDevice & rOutputDevice,
-        Graphic const& rGraphic, GraphicAttr const& rGraphicAttr,
+        GraphicObject const& rGraphicObj, GraphicAttr const& rGraphicAttr,
         SwRect const& rAlignedGrfArea);
 
 // method to align rectangle.

sw/source/core/layout/paintfrm.cxx

@@ -1817,7 +1817,7 @@ static void lcl_DrawGraphic( const SvxBrushItem& rBrush, OutputDevice *pOut,
     if (pGrf->GetGraphic().getSvgData().get())
     {   // fdo#68927 - SVGs are rasterized badly by DrawWithPDFHandling
         paintGraphicUsingPrimitivesHelper(*pOut,
-                pGrf->GetGraphic(), pGrf->GetAttr(), aAlignedGrfRect);
+                *pGrf, pGrf->GetAttr(), aAlignedGrfRect);
     }
     else
     {