transparency->alpha in tools::Color

this just changes the Get/Set methods, the constructor and internal
representation of Color is not changed.

Change-Id: Idb6e07cc08bbaa5bd55b6bd4b585e648aef507b6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/109074
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

9 files changed, 15 insertions, 15 deletions

diff --git a/sw/qa/inc/swmodeltestbase.hxx b/sw/qa/inc/swmodeltestbase.hxx
index ceb2bbe125d0..83ba3245dafe 100644
--- a/sw/qa/inc/swmodeltestbase.hxx
+++ b/sw/qa/inc/swmodeltestbase.hxx
@@ -429,7 +429,7 @@ inline std::ostream& operator<<(std::ostream& rStrm, const Color& rColor)
     rStrm << "Color: R:" << static_cast<int>(rColor.GetRed())
           << " G:" << static_cast<int>(rColor.GetGreen())
           << " B:" << static_cast<int>(rColor.GetBlue())
-          << " A:" << static_cast<int>(rColor.GetTransparency());
+          << " A:" << static_cast<int>(255 - rColor.GetAlpha());
     return rStrm;
 }
 
diff --git a/sw/source/core/layout/paintfrm.cxx b/sw/source/core/layout/paintfrm.cxx
index 27bfd520e03c..c1205226ea86 100644
--- a/sw/source/core/layout/paintfrm.cxx
+++ b/sw/source/core/layout/paintfrm.cxx
@@ -1571,7 +1571,7 @@ static void lcl_implDrawGraphicBackgrd( const SvxBrushItem& _rBackgrdBrush,
     ///     background color is transparent --> draw transparent.
     {
         bDrawTransparent = true;
-        nTransparencyPercent = (aColor.GetTransparency()*100 + 0x7F)/0xFF;
+        nTransparencyPercent = ((255 - aColor.GetAlpha())*100 + 0x7F)/0xFF;
     }
     else if ( (_rGraphicObj.GetAttr().IsTransparent()) &&
                 (_rBackgrdBrush.GetColor() == COL_TRANSPARENT) )
@@ -2107,7 +2107,7 @@ void DrawGraphic(
                 // the transparency value is taken from the background graphic,
                 // otherwise take the transparency value from the color.
                 sal_Int8 nTransparencyPercent = static_cast<sal_Int8>(
-                  (( bTransparentGrfWithNoFillBackgrd ? nGrfTransparency : aColor.GetTransparency()
+                  (( bTransparentGrfWithNoFillBackgrd ? nGrfTransparency : (255 - aColor.GetAlpha())
                    )*100 + 0x7F)/0xFF);
                 // draw poly-polygon transparent
                 pOutDev->DrawTransparent( aDrawPoly, nTransparencyPercent );
@@ -7303,7 +7303,7 @@ bool SwFrame::GetBackgroundBrush(
             bNewDrawingLayerFillStyleIsUsedAndNotNoFill ||
 
             // done when SvxBrushItem is used
-            !rBack.GetColor().GetTransparency() || rBack.GetGraphicPos() != GPOS_NONE ||
+            rBack.GetColor().GetAlpha() == 255 || rBack.GetGraphicPos() != GPOS_NONE ||
 
             // done when direct color is forced
             rxCol ||
diff --git a/sw/source/core/text/inftxt.cxx b/sw/source/core/text/inftxt.cxx
index 8ff2aac8d8da..b2d5bfa28728 100644
--- a/sw/source/core/text/inftxt.cxx
+++ b/sw/source/core/text/inftxt.cxx
@@ -602,7 +602,7 @@ SwTransparentTextGuard::~SwTransparentTextGuard()
     m_aContentMetafile.SetPrefSize(m_aPorRect.SSize());
     m_rDrawInf.SetOut(*m_rPaintInf.GetOut());
     Gradient aVCLGradient;
-    sal_uInt8 nTransPercentVcl = m_rPaintInf.GetFont()->GetColor().GetTransparency();
+    sal_uInt8 nTransPercentVcl = 255 - m_rPaintInf.GetFont()->GetColor().GetAlpha();
     const Color aTransColor(nTransPercentVcl, nTransPercentVcl, nTransPercentVcl);
     aVCLGradient.SetStyle(GradientStyle::Linear);
     aVCLGradient.SetStartColor(aTransColor);
diff --git a/sw/source/filter/ww8/docxattributeoutput.cxx b/sw/source/filter/ww8/docxattributeoutput.cxx
index e5b068a11676..29da55150a6a 100644
--- a/sw/source/filter/ww8/docxattributeoutput.cxx
+++ b/sw/source/filter/ww8/docxattributeoutput.cxx
@@ -7444,7 +7444,7 @@ void DocxAttributeOutput::CharColor( const SvxColorItem& rColor )
     }
 
     AddToAttrList( m_pColorAttrList, FSNS( XML_w, XML_val ), aColorString.getStr() );
-    m_nCharTransparence = aColor.GetTransparency();
+    m_nCharTransparence = 255 - aColor.GetAlpha();
 }
 
 void DocxAttributeOutput::CharContour( const SvxContourItem& rContour )
@@ -9038,7 +9038,7 @@ void DocxAttributeOutput::FormatAnchor( const SwFormatAnchor& )
 static std::optional<sal_Int32> lcl_getDmlAlpha(const SvxBrushItem& rBrush)
 {
     std::optional<sal_Int32> oRet;
-    sal_Int32 nTransparency = rBrush.GetColor().GetTransparency();
+    sal_Int32 nTransparency = 255 - rBrush.GetColor().GetAlpha();
     if (nTransparency)
     {
         // Convert transparency to percent
diff --git a/sw/source/filter/ww8/docxsdrexport.cxx b/sw/source/filter/ww8/docxsdrexport.cxx
index 1ed60de45e25..1af1dce13942 100644
--- a/sw/source/filter/ww8/docxsdrexport.cxx
+++ b/sw/source/filter/ww8/docxsdrexport.cxx
@@ -1083,7 +1083,7 @@ static OString lcl_TransparencyToDrawingMlAlpha(const Color& rColor)
 {
     if (rColor.IsTransparent())
     {
-        sal_Int32 nAlphaPercent = 100 - float(rColor.GetTransparency()) / 2.55;
+        sal_Int32 nAlphaPercent = float(rColor.GetAlpha()) / 2.55;
         return OString::number(nAlphaPercent * oox::drawingml::PER_PERCENT);
     }
 
diff --git a/sw/source/filter/ww8/wrtw8esh.cxx b/sw/source/filter/ww8/wrtw8esh.cxx
index 8b514baa59a4..48bf34fc9881 100644
--- a/sw/source/filter/ww8/wrtw8esh.cxx
+++ b/sw/source/filter/ww8/wrtw8esh.cxx
@@ -1869,7 +1869,7 @@ void SwBasicEscherEx::WriteBrushAttr(const SvxBrushItem &rBrush,
         rPropOpt.AddOpt( ESCHER_Prop_fillBackColor, nFillColor ^ 0xffffff );
         rPropOpt.AddOpt( ESCHER_Prop_fNoFillHitTest, 0x100010 );
 
-        nOpaque = rBrush.GetColor().GetTransparency();
+        nOpaque = 255 - rBrush.GetColor().GetAlpha();
         if (0 != nOpaque)
             bSetOpacity = true;
     }
diff --git a/sw/source/filter/ww8/ww8graf.cxx b/sw/source/filter/ww8/ww8graf.cxx
index de8a1866ba36..c04770c53f3c 100644
--- a/sw/source/filter/ww8/ww8graf.cxx
+++ b/sw/source/filter/ww8/ww8graf.cxx
@@ -1838,7 +1838,7 @@ void SwWW8ImplReader::MatchSdrItemsIntoFlySet( SdrObject const * pSdrObj,
         sal_uInt16 nRes = WW8ITEMVALUE(rOldSet, XATTR_FILLTRANSPARENCE,
             XFillTransparenceItem);
         nTrans = sal_uInt8((nRes * 0xFE) / 100);
-        aBrushItem.GetColor().SetTransparency(nTrans);
+        aBrushItem.GetColor().SetAlpha(255 - nTrans);
         bBrushItemOk = true;
     }
 
@@ -1855,7 +1855,7 @@ void SwWW8ImplReader::MatchSdrItemsIntoFlySet( SdrObject const * pSdrObj,
                 // Writer graphics don't have it yet
                 if (eShapeType != mso_sptPictureFrame)
                 {
-                    aBrushItem.GetColor().SetTransparency(0xFE);
+                    aBrushItem.GetColor().SetAlpha(1);
                     bBrushItemOk = true;
                 }
             break;
@@ -1867,7 +1867,7 @@ void SwWW8ImplReader::MatchSdrItemsIntoFlySet( SdrObject const * pSdrObj,
                     aBrushItem.SetColor(aColor);
 
                     if (bBrushItemOk) // has trans
-                        aBrushItem.GetColor().SetTransparency(nTrans);
+                        aBrushItem.GetColor().SetAlpha(255 - nTrans);
 
                     bBrushItemOk = true;
                 }
diff --git a/sw/source/filter/ww8/ww8par6.cxx b/sw/source/filter/ww8/ww8par6.cxx
index 75289e386eb4..762ea0c81869 100644
--- a/sw/source/filter/ww8/ww8par6.cxx
+++ b/sw/source/filter/ww8/ww8par6.cxx
@@ -3605,7 +3605,7 @@ void SwWW8ImplReader::Read_TextForeColor(sal_uInt16, const sal_uInt8* pData, sho
         // At least when transparency is 0xff and the color is black, Word renders that as black.
         if (aColor.IsTransparent() && aColor != COL_AUTO)
         {
-            aColor.SetTransparency(0);
+            aColor.SetAlpha(255);
         }
 
         NewAttr(SvxColorItem(aColor, RES_CHRATR_COLOR));
diff --git a/sw/source/filter/xml/xmlimpit.cxx b/sw/source/filter/xml/xmlimpit.cxx
index f41cec7cd206..2d0ea2bc046d 100644
--- a/sw/source/filter/xml/xmlimpit.cxx
+++ b/sw/source/filter/xml/xmlimpit.cxx
@@ -700,13 +700,13 @@ bool SvXMLImportItemMapper::PutXMLValue(
                 case MID_BACK_COLOR:
                     if( IsXMLToken( rValue, XML_TRANSPARENT ) )
                     {
-                        rBrush.GetColor().SetTransparency(0xff);
+                        rBrush.GetColor().SetAlpha(0);
                         bOk = true;
                     }
                     else if (::sax::Converter::convertColor(nTempColor, rValue))
                     {
                         Color aTempColor(nTempColor);
-                        aTempColor.SetTransparency(0);
+                        aTempColor.SetAlpha(255);
                         rBrush.SetColor( aTempColor );
                         bOk = true;
                     }