rhbz#1589029 tdf#93789 impress not showing text highlight in presentation mode

the text hightlighting feature was implemented backed on to the vcl
TextFillColor feature. TextFillColor fills the background of the bounds
of the text with that color

Likely either the same problem or similar as tdf#93789

Change-Id: Iace62cedc49e5f5844ac35d3caa23249b6cb4bc1
Reviewed-on: https://gerrit.libreoffice.org/55629Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

cppcanvas/source/mtfrenderer/emfplus.cxx

@@ -1298,6 +1298,7 @@ namespace cppcanvas
                                         ::Color(),
                                         ::Size(),
                                         ::Color(),
+                                        ::Color(),
                                         text,
                                         0,
                                         stringLength,
@@ -1612,6 +1613,7 @@ namespace cppcanvas
                                         ::Color(),
                                         ::Size(),
                                         ::Color(),
+                                        ::Color(),
                                         text,
                                         0,
                                         glyphsCount,

cppcanvas/source/mtfrenderer/implrenderer.cxx

@@ -864,6 +864,7 @@ namespace cppcanvas
             // TODO(F2): implement all text effects
             // if( rState.textAlignment );             // TODO(F2): NYI
 
+            ::Color aTextFillColor( COL_AUTO );
             ::Color aShadowColor( COL_AUTO );
             ::Color aReliefColor( COL_AUTO );
             ::Size  aShadowOffset;
@@ -929,6 +930,9 @@ namespace cppcanvas
                 aReliefColor.SetTransparency( aTextColor.GetTransparency() );
             }
 
+            if (rState.isTextFillColorSet)
+                aTextFillColor = vcl::unotools::doubleSequenceToColor(rState.textFillColor, xColorSpace);
+
             // create the actual text action
             std::shared_ptr<Action> pTextAction(
                 TextActionFactory::createTextAction(
@@ -937,6 +941,7 @@ namespace cppcanvas
                     aReliefColor,
                     aShadowOffset,
                     aShadowColor,
+                    aTextFillColor,
                     rString,
                     nIndex,
                     nLength,
@@ -1001,6 +1006,7 @@ namespace cppcanvas
                             aReliefColor,
                             aShadowOffset,
                             aShadowColor,
+                            aTextFillColor,
                             aStrikeoutText,
                             0/*nStartPos*/,
                             aStrikeoutText.getLength(),

cppcanvas/source/mtfrenderer/textaction.hxx

@@ -66,6 +66,7 @@ namespace cppcanvas
                                                      const ::Color&                 rReliefColor,
                                                      const ::Size&                  rShadowOffset,
                                                      const ::Color&                 rShadowColor,
+                                                     const ::Color&                 rTextFillColor,
                                                      const OUString&                rText,
                                                      sal_Int32                      nStartPos,
                                                      sal_Int32                      nLen,