tdf#130478 Enhance Dashed line drawing on all systems

For more info and explanation including state of process
information and discussion(s) see task please.

Adding corrections for gerrit build

Cherry-picked 5f61c9fe99ac93087b898adddbb4d4733f1fcd07:
Adaptions made and checked that Caio fat line draw
works as expected. Surprisingly some new files were
created which I removed here again.
Also needs to be cherry-picked is:
9c9f76dd5b6fb115e521ac6568673c7a10879192
which will enable direct dash paint for Cairo.
Not done here due to not sure if I can do two
cherry-picks in one run and it's lust a view lines,
so -compared to this one- should be not difficult.

Change-Id: Ie10fb8093a86459dee80db5ab4355b47e46c1f8c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/88130
Tested-by: Jenkins
Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/88284
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Tor Lillqvist <tml@collabora.com>

26 files changed, 456 insertions, 134 deletions

diff --git a/vcl/headless/svpgdi.cxx b/vcl/headless/svpgdi.cxx
index c4453c7f4560..8dcdcc5df44c 100644
--- a/vcl/headless/svpgdi.cxx
+++ b/vcl/headless/svpgdi.cxx
@@ -20,6 +20,8 @@
 #include <config_features.h>
 
 #include <memory>
+#include <numeric>
+
 #ifndef IOS
 #include <headless/svpgdi.hxx>
 #endif
@@ -789,6 +791,7 @@ void SvpSalGraphics::drawPolyLine(sal_uInt32 nPoints, const SalPoint* pPtAry)
         aPoly,
         0.0,
         basegfx::B2DVector(1.0, 1.0),
+        nullptr, // MM01
         basegfx::B2DLineJoin::Miter,
         css::drawing::LineCap_BUTT,
         basegfx::deg2rad(15.0) /*default*/,
@@ -1057,18 +1060,22 @@ private:
     // need to be compared with to check for data validity
     bool                mbNoJoin;
     bool                mbAntiAliasB2DDraw;
+    std::vector< double >                       maStroke;
 
 public:
     SystemDependentData_CairoPath(
         basegfx::SystemDependentDataManager& rSystemDependentDataManager,
         cairo_path_t* pCairoPath,
         bool bNoJoin,
-        bool bAntiAliasB2DDraw);
+        bool bAntiAliasB2DDraw,
+        const std::vector< double >* pStroke); // MM01
     virtual ~SystemDependentData_CairoPath() override;
 
+    // read access
     cairo_path_t* getCairoPath() { return mpCairoPath; }
     bool getNoJoin() const { return mbNoJoin; }
     bool getAntiAliasB2DDraw() const { return mbAntiAliasB2DDraw; }
+    const std::vector< double >& getStroke() const { return maStroke; }
 
     virtual sal_Int64 estimateUsageInBytes() const override;
 };
@@ -1077,12 +1084,18 @@ SystemDependentData_CairoPath::SystemDependentData_CairoPath(
     basegfx::SystemDependentDataManager& rSystemDependentDataManager,
     cairo_path_t* pCairoPath,
     bool bNoJoin,
-    bool bAntiAliasB2DDraw)
+    bool bAntiAliasB2DDraw,
+    const std::vector< double >* pStroke)
 :   basegfx::SystemDependentData(rSystemDependentDataManager),
     mpCairoPath(pCairoPath),
     mbNoJoin(bNoJoin),
-    mbAntiAliasB2DDraw(bAntiAliasB2DDraw)
+    mbAntiAliasB2DDraw(bAntiAliasB2DDraw),
+    maStroke()
 {
+    if(nullptr != pStroke)
+    {
+        maStroke = *pStroke;
+    }
 }
 
 SystemDependentData_CairoPath::~SystemDependentData_CairoPath()
@@ -1114,7 +1127,8 @@ bool SvpSalGraphics::drawPolyLine(
     const basegfx::B2DHomMatrix& rObjectToDevice,
     const basegfx::B2DPolygon& rPolyLine,
     double fTransparency,
-    const basegfx::B2DVector& rLineWidths,
+    const basegfx::B2DVector& rLineWidth,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
@@ -1145,7 +1159,8 @@ bool SvpSalGraphics::drawPolyLine(
             rObjectToDevice,
             rPolyLine,
             fTransparency,
-            rLineWidths,
+            rLineWidth,
+            pStroke, // MM01
             eLineJoin,
             eLineCap,
             fMiterMinimumAngle,
@@ -1167,7 +1182,8 @@ bool SvpSalGraphics::drawPolyLine(
     const basegfx::B2DHomMatrix& rObjectToDevice,
     const basegfx::B2DPolygon& rPolyLine,
     double fTransparency,
-    const basegfx::B2DVector& rLineWidths,
+    const basegfx::B2DVector& rLineWidth,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
@@ -1180,10 +1196,10 @@ bool SvpSalGraphics::drawPolyLine(
     }
 
     // need to check/handle LineWidth when ObjectToDevice transformation is used
-    basegfx::B2DVector aLineWidths(rLineWidths);
+    basegfx::B2DVector aLineWidth(rLineWidth);
     const bool bObjectToDeviceIsIdentity(rObjectToDevice.isIdentity());
-    const basegfx::B2DVector aDeviceLineWidths(bObjectToDeviceIsIdentity ? rLineWidths : rObjectToDevice * rLineWidths);
-    const bool bCorrectLineWidth(!bObjectToDeviceIsIdentity && aDeviceLineWidths.getX() < 1.0 && aLineWidths.getX() >= 1.0);
+    const basegfx::B2DVector aDeviceLineWidth(bObjectToDeviceIsIdentity ? rLineWidth : rObjectToDevice * rLineWidth);
+    const bool bCorrectLineWidth(!bObjectToDeviceIsIdentity && aDeviceLineWidth.getX() < 1.0 && aLineWidth.getX() >= 1.0);
 
     // on-demand inverse of ObjectToDevice transformation
     basegfx::B2DHomMatrix aObjectToDeviceInv;
@@ -1197,7 +1213,7 @@ bool SvpSalGraphics::drawPolyLine(
         }
 
         // calculate-back logical LineWidth for a hairline
-        aLineWidths = aObjectToDeviceInv * basegfx::B2DVector(1.0, 1.0);
+        aLineWidth = aObjectToDeviceInv * basegfx::B2DVector(1.0, 1.0);
     }
 
     // PixelOffset used: Need to reflect in linear transformation
@@ -1227,8 +1243,6 @@ bool SvpSalGraphics::drawPolyLine(
     // set linear transformation
     cairo_set_matrix(cr, &aMatrix);
 
-    const bool bNoJoin((basegfx::B2DLineJoin::NONE == eLineJoin && basegfx::fTools::more(aLineWidths.getX(), 0.0)));
-
     // setup line attributes
     cairo_line_join_t eCairoLineJoin = CAIRO_LINE_JOIN_MITER;
     switch (eLineJoin)
@@ -1279,78 +1293,118 @@ bool SvpSalGraphics::drawPolyLine(
 
     cairo_set_line_join(cr, eCairoLineJoin);
     cairo_set_line_cap(cr, eCairoLineCap);
-    cairo_set_line_width(cr, aLineWidths.getX());
+    cairo_set_line_width(cr, aLineWidth.getX());
     cairo_set_miter_limit(cr, fMiterLimit);
 
-    bool bDone = false;
-    bool bIsTrivial = isTrivial(rPolyLine);
+    // try to access buffered data
+    const bool bIsTrivial(isTrivial(rPolyLine));
+    std::shared_ptr<SystemDependentData_CairoPath> pSystemDependentData_CairoPath(
+        bIsTrivial ? nullptr : rPolyLine.getSystemDependentData<SystemDependentData_CairoPath>());
 
-    if (!bIsTrivial)
+    // MM01 need to do line dashing as fallback stuff here now
+    const double fDotDashLength(nullptr != pStroke ? std::accumulate(pStroke->begin(), pStroke->end(), 0.0) : 0.0);
+    const bool bStrokeUsed(0.0 != fDotDashLength);
+
+    if(pSystemDependentData_CairoPath)
     {
-        // try to access buffered data
-        std::shared_ptr<SystemDependentData_CairoPath> pSystemDependentData_CairoPath(
-            rPolyLine.getSystemDependentData<SystemDependentData_CairoPath>());
+        // MM01 - check on stroke change. Used against not used, or if both used,
+        // equal or different?
+        const bool bStrokeWasUsed(!pSystemDependentData_CairoPath->getStroke().empty());
 
-        if(pSystemDependentData_CairoPath)
+        if(bStrokeWasUsed != bStrokeUsed
+        || (bStrokeUsed && *pStroke != pSystemDependentData_CairoPath->getStroke()))
         {
-            // check data validity
-            if(nullptr == pSystemDependentData_CairoPath->getCairoPath()
-               || pSystemDependentData_CairoPath->getNoJoin() != bNoJoin
-               || pSystemDependentData_CairoPath->getAntiAliasB2DDraw() != bAntiAliasB2DDraw
-               || bPixelSnapHairline /*tdf#124700*/ )
-            {
-                // data invalid, forget
-                pSystemDependentData_CairoPath.reset();
-            }
+            // data invalid, forget
+            pSystemDependentData_CairoPath.reset();
         }
+    }
 
-        if(pSystemDependentData_CairoPath)
+    // check for basegfx::B2DLineJoin::NONE to react accordingly
+    const bool bNoJoin((basegfx::B2DLineJoin::NONE == eLineJoin
+        && basegfx::fTools::more(aLineWidth.getX(), 0.0)));
+
+    if(pSystemDependentData_CairoPath)
+    {
+        // check data validity
+        if(nullptr == pSystemDependentData_CairoPath->getCairoPath()
+            || pSystemDependentData_CairoPath->getNoJoin() != bNoJoin
+            || pSystemDependentData_CairoPath->getAntiAliasB2DDraw() != bAntiAliasB2DDraw
+            || bPixelSnapHairline /*tdf#124700*/ )
         {
-            // re-use data
-            cairo_append_path(cr, pSystemDependentData_CairoPath->getCairoPath());
-            bDone = true;
+            // data invalid, forget
+            pSystemDependentData_CairoPath.reset();
         }
     }
 
-    if (!bDone)
+    if(pSystemDependentData_CairoPath)
+    {
+        // re-use data
+        cairo_append_path(cr, pSystemDependentData_CairoPath->getCairoPath());
+    }
+    else
     {
         // create data
-        if (!bNoJoin)
+        // MM01 need to do line dashing as fallback stuff here now
+        basegfx::B2DPolyPolygon aPolyPolygonLine;
+
+        if(bStrokeUsed)
         {
-            // PixelOffset now reflected in linear transformation used
-            AddPolygonToPath(
-                cr,
-                rPolyLine,
-                rObjectToDevice, // ObjectToDevice *without* LineDraw-Offset
-                !bAntiAliasB2DDraw,
-                bPixelSnapHairline);
+            // apply LineStyle
+            basegfx::utils::applyLineDashing(
+                rPolyLine, // source
+                *pStroke, // pattern
+                &aPolyPolygonLine, // traget for lines
+                nullptr, // target for gaps
+                fDotDashLength); // full length if available
         }
         else
         {
-            const sal_uInt32 nPointCount(rPolyLine.count());
-            const sal_uInt32 nEdgeCount(rPolyLine.isClosed() ? nPointCount : nPointCount - 1);
-            basegfx::B2DPolygon aEdge;
+            // no line dashing, just copy
+            aPolyPolygonLine.append(rPolyLine);
+        }
 
-            aEdge.append(rPolyLine.getB2DPoint(0));
-            aEdge.append(basegfx::B2DPoint(0.0, 0.0));
+        // MM01 checked/verified for Cairo
+        for(sal_uInt32 a(0); a < aPolyPolygonLine.count(); a++)
+        {
+            const basegfx::B2DPolygon aPolyLine(aPolyPolygonLine.getB2DPolygon(a));
 
-            for (sal_uInt32 i(0); i < nEdgeCount; i++)
+            if (!bNoJoin)
             {
-                const sal_uInt32 nNextIndex((i + 1) % nPointCount);
-                aEdge.setB2DPoint(1, rPolyLine.getB2DPoint(nNextIndex));
-                aEdge.setNextControlPoint(0, rPolyLine.getNextControlPoint(i));
-                aEdge.setPrevControlPoint(1, rPolyLine.getPrevControlPoint(nNextIndex));
-
                 // PixelOffset now reflected in linear transformation used
                 AddPolygonToPath(
                     cr,
-                    aEdge,
+                    aPolyLine,
                     rObjectToDevice, // ObjectToDevice *without* LineDraw-Offset
                     !bAntiAliasB2DDraw,
                     bPixelSnapHairline);
+            }
+            else
+            {
+                const sal_uInt32 nPointCount(aPolyLine.count());
+                const sal_uInt32 nEdgeCount(aPolyLine.isClosed() ? nPointCount : nPointCount - 1);
+                basegfx::B2DPolygon aEdge;
+
+                aEdge.append(aPolyLine.getB2DPoint(0));
+                aEdge.append(basegfx::B2DPoint(0.0, 0.0));
 
-                // prepare next step
-                aEdge.setB2DPoint(0, aEdge.getB2DPoint(1));
+                for (sal_uInt32 i(0); i < nEdgeCount; i++)
+                {
+                    const sal_uInt32 nNextIndex((i + 1) % nPointCount);
+                    aEdge.setB2DPoint(1, aPolyLine.getB2DPoint(nNextIndex));
+                    aEdge.setNextControlPoint(0, aPolyLine.getNextControlPoint(i));
+                    aEdge.setPrevControlPoint(1, aPolyLine.getPrevControlPoint(nNextIndex));
+
+                    // PixelOffset now reflected in linear transformation used
+                    AddPolygonToPath(
+                        cr,
+                        aEdge,
+                        rObjectToDevice, // ObjectToDevice *without* LineDraw-Offset
+                        !bAntiAliasB2DDraw,
+                        bPixelSnapHairline);
+
+                    // prepare next step
+                    aEdge.setB2DPoint(0, aEdge.getB2DPoint(1));
+                }
             }
         }
 
@@ -1361,7 +1415,8 @@ bool SvpSalGraphics::drawPolyLine(
                 ImplGetSystemDependentDataManager(),
                 cairo_copy_path(cr),
                 bNoJoin,
-                bAntiAliasB2DDraw);
+                bAntiAliasB2DDraw,
+                pStroke);
         }
     }
 
@@ -1472,7 +1527,8 @@ bool SvpSalGraphics::drawPolyPolygon(
                 ImplGetSystemDependentDataManager(),
                 cairo_copy_path(cr),
                 false,
-                false);
+                false,
+                nullptr);
         }
     }
 
diff --git a/vcl/inc/headless/svpgdi.hxx b/vcl/inc/headless/svpgdi.hxx
index 9ee269aa18a5..ea7be8c0733c 100644
--- a/vcl/inc/headless/svpgdi.hxx
+++ b/vcl/inc/headless/svpgdi.hxx
@@ -117,6 +117,7 @@ public:
         const basegfx::B2DPolygon& rPolyLine,
         double fTransparency,
         const basegfx::B2DVector& rLineWidths,
+        const std::vector< double >* pStroke, // MM01
         basegfx::B2DLineJoin eLineJoin,
         css::drawing::LineCap eLineCap,
         double fMiterMinimumAngle,
@@ -214,6 +215,7 @@ public:
                                 const basegfx::B2DPolygon&,
                                 double fTransparency,
                                 const basegfx::B2DVector& rLineWidths,
+                                const std::vector< double >* pStroke, // MM01
                                 basegfx::B2DLineJoin,
                                 css::drawing::LineCap,
                                 double fMiterMinimumAngle,
diff --git a/vcl/inc/openglgdiimpl.hxx b/vcl/inc/openglgdiimpl.hxx
index 132a64327e42..8d3f8c95ce7b 100644
--- a/vcl/inc/openglgdiimpl.hxx
+++ b/vcl/inc/openglgdiimpl.hxx
@@ -260,6 +260,7 @@ public:
                 const basegfx::B2DPolygon&,
                 double fTransparency,
                 const basegfx::B2DVector& rLineWidths,
+                const std::vector< double >* pStroke, // MM01
                 basegfx::B2DLineJoin,
                 css::drawing::LineCap,
                 double fMiterMinimumAngle,
diff --git a/vcl/inc/qt5/Qt5Graphics.hxx b/vcl/inc/qt5/Qt5Graphics.hxx
index 9430be94a112..5b50f9975d70 100644..100755
--- a/vcl/inc/qt5/Qt5Graphics.hxx
+++ b/vcl/inc/qt5/Qt5Graphics.hxx
@@ -119,9 +119,10 @@ public:
                                        const PolyFlags* const* pFlgAry) override;
     virtual bool drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice,
                               const basegfx::B2DPolygon&, double fTransparency,
-                              const basegfx::B2DVector& rLineWidths, basegfx::B2DLineJoin,
-                              css::drawing::LineCap eLineCap, double fMiterMinimumAngle,
-                              bool bPixelSnapHairline) override;
+                              const basegfx::B2DVector& rLineWidths,
+                              const std::vector<double>* pStroke, // MM01
+                              basegfx::B2DLineJoin, css::drawing::LineCap eLineCap,
+                              double fMiterMinimumAngle, bool bPixelSnapHairline) override;
     virtual bool drawGradient(const tools::PolyPolygon&, const Gradient&) override;
 
     virtual void copyArea(long nDestX, long nDestY, long nSrcX, long nSrcY, long nSrcWidth,
diff --git a/vcl/inc/quartz/salgdi.h b/vcl/inc/quartz/salgdi.h
index 70b4ddad47f1..e9e9f4905e5e 100644
--- a/vcl/inc/quartz/salgdi.h
+++ b/vcl/inc/quartz/salgdi.h
@@ -238,6 +238,7 @@ public:
                                 const basegfx::B2DPolygon&,
                                 double fTransparency,
                                 const basegfx::B2DVector& rLineWidths,
+                                const std::vector< double >* pStroke, // MM01
                                 basegfx::B2DLineJoin,
                                 css::drawing::LineCap eLineCap,
                                 double fMiterMinimumAngle,
diff --git a/vcl/inc/salgdi.hxx b/vcl/inc/salgdi.hxx
index 1106a1eed981..7ce17fa38385 100644
--- a/vcl/inc/salgdi.hxx
+++ b/vcl/inc/salgdi.hxx
@@ -248,6 +248,7 @@ public:
                                     const basegfx::B2DPolygon& i_rPolygon,
                                     double i_fTransparency,
                                     const basegfx::B2DVector& i_rLineWidth,
+                                    const std::vector< double >* i_pStroke, // MM01
                                     basegfx::B2DLineJoin i_eLineJoin,
                                     css::drawing::LineCap i_eLineCap,
                                     double i_fMiterMinimumAngle,
@@ -476,6 +477,7 @@ protected:
                                     const basegfx::B2DPolygon&,
                                     double fTransparency,
                                     const basegfx::B2DVector& rLineWidths,
+                                    const std::vector< double >* pStroke, // MM01
                                     basegfx::B2DLineJoin,
                                     css::drawing::LineCap,
                                     double fMiterMinimumAngle,
diff --git a/vcl/inc/salgdiimpl.hxx b/vcl/inc/salgdiimpl.hxx
index a6dc4a808ee9..887d1b49bbaf 100644
--- a/vcl/inc/salgdiimpl.hxx
+++ b/vcl/inc/salgdiimpl.hxx
@@ -111,6 +111,7 @@ public:
                 const basegfx::B2DPolygon&,
                 double fTransparency,
                 const basegfx::B2DVector& rLineWidths,
+                const std::vector< double >* pStroke, // MM01
                 basegfx::B2DLineJoin,
                 css::drawing::LineCap,
                 double fMiterMinimumAngle,
diff --git a/vcl/inc/unx/genpspgraphics.h b/vcl/inc/unx/genpspgraphics.h
index efe1bc7bfa3f..c5eaf1975626 100644
--- a/vcl/inc/unx/genpspgraphics.h
+++ b/vcl/inc/unx/genpspgraphics.h
@@ -135,6 +135,7 @@ public:
                                 const basegfx::B2DPolygon&,
                                 double fTransparency,
                                 const basegfx::B2DVector& rLineWidths,
+                                const std::vector< double >* pStroke, // MM01
                                 basegfx::B2DLineJoin,
                                 css::drawing::LineCap,
                                 double fMiterMinimumAngle,
diff --git a/vcl/inc/unx/salgdi.h b/vcl/inc/unx/salgdi.h
index 97be62230a68..f979a3841b49 100644
--- a/vcl/inc/unx/salgdi.h
+++ b/vcl/inc/unx/salgdi.h
@@ -168,6 +168,7 @@ public:
                                         const basegfx::B2DPolygon&,
                                         double fTransparency,
                                         const basegfx::B2DVector& rLineWidth,
+                                        const std::vector< double >* pStroke, // MM01
                                         basegfx::B2DLineJoin,
                                         css::drawing::LineCap,
                                         double fMiterMinimumAngle,
diff --git a/vcl/inc/win/salgdi.h b/vcl/inc/win/salgdi.h
index cc59322b3098..08061db3c3ea 100644
--- a/vcl/inc/win/salgdi.h
+++ b/vcl/inc/win/salgdi.h
@@ -230,6 +230,7 @@ protected:
         const basegfx::B2DPolygon&,
         double fTransparency,
         const basegfx::B2DVector& rLineWidth,
+        const std::vector< double >* pStroke, // MM01
         basegfx::B2DLineJoin,
         css::drawing::LineCap,
         double fMiterMinimumAngle,
diff --git a/vcl/opengl/gdiimpl.cxx b/vcl/opengl/gdiimpl.cxx
index dfd916f9e4c7..4e58196e4b01 100644
--- a/vcl/opengl/gdiimpl.cxx
+++ b/vcl/opengl/gdiimpl.cxx
@@ -26,6 +26,7 @@
 #include <basegfx/matrix/b2dhommatrixtools.hxx>
 #include <basegfx/polygon/b2dlinegeometry.hxx>
 #include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
 #include <basegfx/polygon/b2dpolygontriangulator.hxx>
 #include <basegfx/polygon/b2dpolypolygoncutter.hxx>
 #include <basegfx/polygon/b2dtrapezoid.hxx>
@@ -42,6 +43,7 @@
 
 #include <cmath>
 #include <vector>
+#include <numeric>
 
 #include <glm/gtc/type_ptr.hpp>
 #include <glm/gtx/norm.hpp>
@@ -1553,6 +1555,7 @@ void OpenGLSalGraphicsImpl::drawPolyLine( sal_uInt32 nPoints, const SalPoint* pP
         aPoly,
         0.0,
         basegfx::B2DVector(1.0, 1.0),
+        nullptr, // MM01
         basegfx::B2DLineJoin::Miter,
         css::drawing::LineCap_BUTT,
         basegfx::deg2rad(15.0) /*default*/,
@@ -1630,6 +1633,7 @@ bool OpenGLSalGraphicsImpl::drawPolyLine(
     const basegfx::B2DPolygon& rPolygon,
     double fTransparency,
     const basegfx::B2DVector& rLineWidth,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
@@ -1637,28 +1641,60 @@ bool OpenGLSalGraphicsImpl::drawPolyLine(
 {
     VCL_GL_INFO("::drawPolyLine " << rPolygon.getB2DRange());
 
+    // MM01 check done for simple reasons
+    if(!rPolygon.count() || fTransparency < 0.0 || fTransparency > 1.0)
+    {
+        return true;
+    }
+
+    // MM01 need to do line dashing as fallback stuff here now
+    const double fDotDashLength(nullptr != pStroke ? std::accumulate(pStroke->begin(), pStroke->end(), 0.0) : 0.0);
+    const bool bStrokeUsed(0.0 != fDotDashLength);
+    basegfx::B2DPolyPolygon aPolyPolygonLine;
+
+    if(bStrokeUsed)
+    {
+        // apply LineStyle
+        basegfx::utils::applyLineDashing(
+            rPolygon, // source
+            *pStroke, // pattern
+            &aPolyPolygonLine, // traget for lines
+            nullptr, // target for gaps
+            fDotDashLength); // full length if available
+    }
+    else
+    {
+        // no line dashing, just copy
+        aPolyPolygonLine.append(rPolygon);
+    }
+
     // Transform to DeviceCoordinates, get DeviceLineWidth, execute PixelSnapHairline
-    basegfx::B2DPolygon aPolyLine(rPolygon);
-    aPolyLine.transform(rObjectToDevice);
-    if(bPixelSnapHairline) { aPolyLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyLine); }
+    aPolyPolygonLine.transform(rObjectToDevice);
+    if(bPixelSnapHairline) { aPolyPolygonLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyPolygonLine); }
     const basegfx::B2DVector aLineWidth(rObjectToDevice * rLineWidth);
 
-    // addDrawPolyLine() assumes that there are no duplicate points in the
-    // polygon.
-    // basegfx::B2DPolygon aPolygon(rPolygon);
-    aPolyLine.removeDoublePoints();
+    for(sal_uInt32 a(0); a < aPolyPolygonLine.count(); a++)
+    {
+        // addDrawPolyLine() assumes that there are no duplicate points in the polygon
+        basegfx::B2DPolygon aPolyLine(aPolyPolygonLine.getB2DPolygon(a));
+        basegfx::utils::simplifyCurveSegments(aPolyLine);
+        aPolyLine.removeDoublePoints();
 
-    mpRenderList->addDrawPolyLine(
-        aPolyLine,
-        fTransparency,
-        aLineWidth,
-        eLineJoin,
-        eLineCap,
-        fMiterMinimumAngle,
-        mnLineColor,
-        mrParent.getAntiAliasB2DDraw());
+        mpRenderList->addDrawPolyLine(
+            aPolyLine,
+            fTransparency,
+            aLineWidth,
+            eLineJoin,
+            eLineCap,
+            fMiterMinimumAngle,
+            mnLineColor,
+            mrParent.getAntiAliasB2DDraw());
+
+        // MM01: not sure - maybe this can be moved out of this loop, but to
+        // keep on the safe side for now, do not relly change something for now
+        PostBatchDraw();
+    }
 
-    PostBatchDraw();
     return true;
 }
 
diff --git a/vcl/qt5/Qt5Graphics_GDI.cxx b/vcl/qt5/Qt5Graphics_GDI.cxx
index 851d222f0ab7..afca58868076 100644..100755
--- a/vcl/qt5/Qt5Graphics_GDI.cxx
+++ b/vcl/qt5/Qt5Graphics_GDI.cxx
@@ -29,7 +29,9 @@
 #include <QtGui/QWindow>
 #include <QtWidgets/QWidget>
 
+#include <numeric>
 #include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
 
 static const basegfx::B2DPoint aHalfPointOfs(0.5, 0.5);
 
@@ -323,37 +325,67 @@ bool Qt5Graphics::drawPolyPolygonBezier(sal_uInt32 /*nPoly*/, const sal_uInt32*
 
 bool Qt5Graphics::drawPolyLine(const basegfx::B2DHomMatrix& rObjectToDevice,
                                const basegfx::B2DPolygon& rPolyLine, double fTransparency,
-                               const basegfx::B2DVector& rLineWidths,
+                               const basegfx::B2DVector& rLineWidth,
+                               const std::vector<double>* pStroke, // MM01
                                basegfx::B2DLineJoin eLineJoin, css::drawing::LineCap eLineCap,
                                double fMiterMinimumAngle, bool bPixelSnapHairline)
 {
     if (SALCOLOR_NONE == m_aFillColor && SALCOLOR_NONE == m_aLineColor)
+    {
         return true;
+    }
 
-    // short circuit if there is nothing to do
-    if (0 == rPolyLine.count())
+    // MM01 check done for simple reasons
+    if (!rPolyLine.count() || fTransparency < 0.0 || fTransparency > 1.0)
     {
         return true;
     }
 
+    // MM01 need to do line dashing as fallback stuff here now
+    const double fDotDashLength(
+        nullptr != pStroke ? std::accumulate(pStroke->begin(), pStroke->end(), 0.0) : 0.0);
+    const bool bStrokeUsed(0.0 != fDotDashLength);
+    basegfx::B2DPolyPolygon aPolyPolygonLine;
+
+    if (bStrokeUsed)
+    {
+        // apply LineStyle
+        basegfx::utils::applyLineDashing(rPolyLine, // source
+                                         *pStroke, // pattern
+                                         &aPolyPolygonLine, // traget for lines
+                                         nullptr, // target for gaps
+                                         fDotDashLength); // full length if available
+    }
+    else
+    {
+        // no line dashing, just copy
+        aPolyPolygonLine.append(rPolyLine);
+    }
+
     // Transform to DeviceCoordinates, get DeviceLineWidth, execute PixelSnapHairline
-    basegfx::B2DPolygon aPolyLine(rPolyLine);
-    aPolyLine.transform(rObjectToDevice);
+    aPolyPolygonLine.transform(rObjectToDevice);
     if (bPixelSnapHairline)
     {
-        aPolyLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyLine);
+        aPolyPolygonLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyPolygonLine);
     }
-    const basegfx::B2DVector aLineWidths(rObjectToDevice * rLineWidths);
+    const basegfx::B2DVector aLineWidth(rObjectToDevice * rLineWidth);
 
     // setup poly-polygon path
     QPainterPath aPath;
-    AddPolygonToPath(aPath, aPolyLine, aPolyLine.isClosed(), !getAntiAliasB2DDraw(), true);
+
+    // MM01 todo - I assume that this is OKAY to be done in one run for Qt5,
+    // but this NEEDS to be checked/verified
+    for (sal_uInt32 a(0); a < aPolyPolygonLine.count(); a++)
+    {
+        const basegfx::B2DPolygon aPolyLine(aPolyPolygonLine.getB2DPolygon(a));
+        AddPolygonToPath(aPath, aPolyLine, aPolyLine.isClosed(), !getAntiAliasB2DDraw(), true);
+    }
 
     Qt5Painter aPainter(*this, false, 255 * (1.0 - fTransparency));
 
     // setup line attributes
     QPen aPen = aPainter.pen();
-    aPen.setWidth(aLineWidths.getX());
+    aPen.setWidth(aLineWidth.getX());
 
     switch (eLineJoin)
     {
diff --git a/vcl/quartz/salgdicommon.cxx b/vcl/quartz/salgdicommon.cxx
index e43e75caad2e..684cff1e9bd4 100644
--- a/vcl/quartz/salgdicommon.cxx
+++ b/vcl/quartz/salgdicommon.cxx
@@ -22,9 +22,11 @@
 
 #include <cassert>
 #include <cstring>
+#include <numeric>
 
 #include <basegfx/polygon/b2dpolygon.hxx>
 #include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
 #include <osl/endian.h>
 #include <osl/file.hxx>
 #include <sal/types.h>
@@ -851,15 +853,18 @@ bool AquaSalGraphics::drawPolyLine(
     const basegfx::B2DHomMatrix& rObjectToDevice,
     const basegfx::B2DPolygon& rPolyLine,
     double fTransparency,
-    const basegfx::B2DVector& rLineWidths,
+    const basegfx::B2DVector& rLineWidth,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
     bool bPixelSnapHairline)
 {
-    // short circuit if there is nothing to do
-    if(0 == rPolyLine.count())
+    // MM01 check done for simple reasons
+    if(!rPolyLine.count() || fTransparency < 0.0 || fTransparency > 1.0)
+    {
         return true;
+    }
 
 #ifdef IOS
     if( !CheckContext() )
@@ -867,20 +872,40 @@ bool AquaSalGraphics::drawPolyLine(
 #endif
 
     // need to check/handle LineWidth when ObjectToDevice transformation is used
-    const basegfx::B2DVector aDeviceLineWidths(rObjectToDevice * rLineWidths);
-    const bool bCorrectLineWidth(aDeviceLineWidths.getX() < 1.0 && rLineWidths.getX() >= 1.0);
-    const basegfx::B2DVector aLineWidths(bCorrectLineWidth ? rLineWidths : aDeviceLineWidths);
+    const basegfx::B2DVector aDeviceLineWidth(rObjectToDevice * rLineWidth);
+    const bool bCorrectLineWidth(aDeviceLineWidth.getX() < 1.0 && rLineWidth.getX() >= 1.0);
+    const basegfx::B2DVector aLineWidth(bCorrectLineWidth ? rLineWidth : aDeviceLineWidth);
 
     // #i101491# Aqua does not support B2DLineJoin::NONE; return false to use
     // the fallback (own geometry preparation)
     // #i104886# linejoin-mode and thus the above only applies to "fat" lines
-    if( (basegfx::B2DLineJoin::NONE == eLineJoin) && (aLineWidths.getX() > 1.3) )
+    if( (basegfx::B2DLineJoin::NONE == eLineJoin) && (aLineWidth.getX() > 1.3) )
         return false;
 
+    // MM01 need to do line dashing as fallback stuff here now
+    const double fDotDashLength(nullptr != pStroke ? std::accumulate(pStroke->begin(), pStroke->end(), 0.0) : 0.0);
+    const bool bStrokeUsed(0.0 != fDotDashLength);
+    basegfx::B2DPolyPolygon aPolyPolygonLine;
+
+    if(bStrokeUsed)
+    {
+        // apply LineStyle
+        basegfx::utils::applyLineDashing(
+            rPolyLine, // source
+            *pStroke, // pattern
+            &aPolyPolygonLine, // traget for lines
+            nullptr, // target for gaps
+            fDotDashLength); // full length if available
+    }
+    else
+    {
+        // no line dashing, just copy
+        aPolyPolygonLine.append(rPolyLine);
+    }
+
     // Transform to DeviceCoordinates, get DeviceLineWidth, execute PixelSnapHairline
-    basegfx::B2DPolygon aPolyLine(rPolyLine);
-    aPolyLine.transform(rObjectToDevice);
-    if(bPixelSnapHairline) { aPolyLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyLine); }
+    aPolyPolygonLine.transform(rObjectToDevice);
+    if(bPixelSnapHairline) { aPolyPolygonLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyPolygonLine); }
 
     // setup line attributes
     CGLineJoin aCGLineJoin = kCGLineJoinMiter;
@@ -918,12 +943,19 @@ bool AquaSalGraphics::drawPolyLine(
     // setup poly-polygon path
     CGMutablePathRef xPath = CGPathCreateMutable();
     SAL_INFO( "vcl.cg", "CGPathCreateMutable() = " << xPath );
-    AddPolygonToPath(
-        xPath,
-        aPolyLine,
-        aPolyLine.isClosed(),
-        !getAntiAliasB2DDraw(),
-        true);
+
+    // MM01 todo - I assume that this is OKAY to be done in one run for quartz
+    // but this NEEDS to be checked/verified
+    for(sal_uInt32 a(0); a < aPolyPolygonLine.count(); a++)
+    {
+        const basegfx::B2DPolygon aPolyLine(aPolyPolygonLine.getB2DPolygon(a));
+        AddPolygonToPath(
+            xPath,
+            aPolyLine,
+            aPolyLine.isClosed(),
+            !getAntiAliasB2DDraw(),
+            true);
+    }
 
     const CGRect aRefreshRect = CGPathGetBoundingBox( xPath );
     SAL_INFO( "vcl.cg", "CGPathGetBoundingBox(" << xPath << ") = " << aRefreshRect );
@@ -943,7 +975,7 @@ bool AquaSalGraphics::drawPolyLine(
         CGContextSetAlpha( mrContext, 1.0 - fTransparency );
         CGContextSetLineJoin( mrContext, aCGLineJoin );
         CGContextSetLineCap( mrContext, aCGLineCap );
-        CGContextSetLineWidth( mrContext, aLineWidths.getX() );
+        CGContextSetLineWidth( mrContext, aLineWidth.getX() );
         CGContextSetMiterLimit(mrContext, fCGMiterLimit);
         SAL_INFO( "vcl.cg", "CGContextDrawPath(" << mrContext << ",kCGPathStroke)" );
         CGContextDrawPath( mrContext, kCGPathStroke );
diff --git a/vcl/source/gdi/FileDefinitionWidgetDraw.cxx b/vcl/source/gdi/FileDefinitionWidgetDraw.cxx
index 8256b0529dd7..bd494866a21f 100644..100755
--- a/vcl/source/gdi/FileDefinitionWidgetDraw.cxx
+++ b/vcl/source/gdi/FileDefinitionWidgetDraw.cxx
@@ -300,6 +300,7 @@ void drawFromDrawCommands(gfx::DrawRoot const& rDrawRoot, SalGraphics& rGraphics
                     rGraphics.DrawPolyLine(
                         basegfx::B2DHomMatrix(), aB2DPolygon, 1.0 - rRectangle.mnOpacity,
                         basegfx::B2DVector(rRectangle.mnStrokeWidth, rRectangle.mnStrokeWidth),
+                        nullptr, // MM01
                         basegfx::B2DLineJoin::Round, css::drawing::LineCap_ROUND, 0.0f, false,
                         nullptr);
                 }
@@ -347,6 +348,7 @@ void drawFromDrawCommands(gfx::DrawRoot const& rDrawRoot, SalGraphics& rGraphics
                         rGraphics.DrawPolyLine(
                             basegfx::B2DHomMatrix(), rPolygon, 1.0 - rPath.mnOpacity,
                             basegfx::B2DVector(rPath.mnStrokeWidth, rPath.mnStrokeWidth),
+                            nullptr, // MM01
                             basegfx::B2DLineJoin::Round, css::drawing::LineCap_ROUND, 0.0f, false,
                             nullptr);
                     }
@@ -389,6 +391,7 @@ void munchDrawCommands(std::vector<std::shared_ptr<WidgetDrawAction>> const& rDr
                 rGraphics.DrawPolyLine(
                     basegfx::B2DHomMatrix(), aB2DPolygon, 0.0f,
                     basegfx::B2DVector(rWidgetDraw.mnStrokeWidth, rWidgetDraw.mnStrokeWidth),
+                    nullptr, // MM01
                     basegfx::B2DLineJoin::Round, css::drawing::LineCap_ROUND, 0.0f, false, nullptr);
             }
             break;
@@ -412,6 +415,7 @@ void munchDrawCommands(std::vector<std::shared_ptr<WidgetDrawAction>> const& rDr
                 rGraphics.DrawPolyLine(
                     basegfx::B2DHomMatrix(), aB2DPolygon, 0.0f,
                     basegfx::B2DVector(rWidgetDraw.mnStrokeWidth, rWidgetDraw.mnStrokeWidth),
+                    nullptr, // MM01
                     basegfx::B2DLineJoin::Round, css::drawing::LineCap_ROUND, 0.0f, false, nullptr);
             }
             break;
diff --git a/vcl/source/gdi/salgdilayout.cxx b/vcl/source/gdi/salgdilayout.cxx
index 61c510a363d8..114e4051ec24 100644
--- a/vcl/source/gdi/salgdilayout.cxx
+++ b/vcl/source/gdi/salgdilayout.cxx
@@ -573,6 +573,7 @@ bool SalGraphics::DrawPolyLine(
     const basegfx::B2DPolygon& i_rPolygon,
     double i_fTransparency,
     const basegfx::B2DVector& i_rLineWidth,
+    const std::vector< double >* i_pStroke, // MM01
     basegfx::B2DLineJoin i_eLineJoin,
     css::drawing::LineCap i_eLineCap,
     double i_fMiterMinimumAngle,
@@ -601,6 +602,7 @@ bool SalGraphics::DrawPolyLine(
                     i_rPolygon,
                     i_fTransparency,
                     i_rLineWidth,
+                    i_pStroke, // MM01
                     i_eLineJoin,
                     i_eLineCap,
                     i_fMiterMinimumAngle,
@@ -628,6 +630,7 @@ bool SalGraphics::DrawPolyLine(
                     i_rPolygon,
                     i_fTransparency,
                     i_rLineWidth,
+                    i_pStroke, // MM01
                     i_eLineJoin,
                     i_eLineCap,
                     i_fMiterMinimumAngle,
@@ -642,6 +645,7 @@ bool SalGraphics::DrawPolyLine(
         i_rPolygon,
         i_fTransparency,
         i_rLineWidth,
+        i_pStroke, // MM01
         i_eLineJoin,
         i_eLineCap,
         i_fMiterMinimumAngle,
diff --git a/vcl/source/outdev/line.cxx b/vcl/source/outdev/line.cxx
index ef7cb30ef6ba..a6a23026aa94 100644
--- a/vcl/source/outdev/line.cxx
+++ b/vcl/source/outdev/line.cxx
@@ -133,6 +133,7 @@ void OutputDevice::DrawLine( const Point& rStartPt, const Point& rEndPt )
             aB2DPolyLine,
             0.0,
             aB2DLineWidth,
+            nullptr, // MM01
             basegfx::B2DLineJoin::NONE,
             css::drawing::LineCap_BUTT,
             basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
@@ -244,6 +245,7 @@ void OutputDevice::drawLine( basegfx::B2DPolyPolygon aLinePolyPolygon, const Lin
                     rB2DPolygon,
                     0.0,
                     basegfx::B2DVector(1.0,1.0),
+                    nullptr, // MM01
                     basegfx::B2DLineJoin::NONE,
                     css::drawing::LineCap_BUTT,
                     basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
diff --git a/vcl/source/outdev/polygon.cxx b/vcl/source/outdev/polygon.cxx
index aacbe00df924..8aeda1d0c1e5 100644
--- a/vcl/source/outdev/polygon.cxx
+++ b/vcl/source/outdev/polygon.cxx
@@ -101,6 +101,7 @@ void OutputDevice::DrawPolyPolygon( const tools::PolyPolygon& rPolyPoly )
                     rPolygon,
                     0.0,
                     aB2DLineWidth,
+                    nullptr, // MM01
                     basegfx::B2DLineJoin::NONE,
                     css::drawing::LineCap_BUTT,
                     basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
@@ -219,6 +220,7 @@ void OutputDevice::DrawPolygon( const tools::Polygon& rPoly )
                 aB2DPolygon,
                 0.0,
                 aB2DLineWidth,
+                nullptr, // MM01
                 basegfx::B2DLineJoin::NONE,
                 css::drawing::LineCap_BUTT,
                 basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
@@ -329,6 +331,7 @@ void OutputDevice::ImplDrawPolyPolygonWithB2DPolyPolygon(const basegfx::B2DPolyP
                     rPolygon,
                     0.0,
                     aB2DLineWidth,
+                    nullptr, // MM01
                     basegfx::B2DLineJoin::NONE,
                     css::drawing::LineCap_BUTT,
                     basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
diff --git a/vcl/source/outdev/polyline.cxx b/vcl/source/outdev/polyline.cxx
index a1b63fe494dd..997f5383aa12 100644
--- a/vcl/source/outdev/polyline.cxx
+++ b/vcl/source/outdev/polyline.cxx
@@ -76,6 +76,7 @@ void OutputDevice::DrawPolyLine( const tools::Polygon& rPoly )
         aB2DPolyLine,
         0.0,
         aB2DLineWidth,
+        nullptr, // MM01
         basegfx::B2DLineJoin::NONE,
         css::drawing::LineCap_BUTT,
         basegfx::deg2rad(15.0) /*default fMiterMinimumAngle, not used*/,
@@ -179,6 +180,7 @@ void OutputDevice::DrawPolyLine( const basegfx::B2DPolygon& rB2DPolygon,
         rB2DPolygon,
         fLineWidth,
         0.0,
+        nullptr, // MM01
         eLineJoin,
         eLineCap,
         fMiterMinimumAngle))
@@ -235,6 +237,7 @@ void OutputDevice::DrawPolyLine( const basegfx::B2DPolygon& rB2DPolygon,
                 rPolygon,
                 0.0,
                 0.0,
+                nullptr, // MM01
                 basegfx::B2DLineJoin::NONE,
                 css::drawing::LineCap_BUTT,
                 basegfx::deg2rad(15.0) /*default, not used*/,
@@ -306,6 +309,7 @@ bool OutputDevice::DrawPolyLineDirect(
     const basegfx::B2DPolygon& rB2DPolygon,
     double fLineWidth,
     double fTransparency,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
@@ -350,6 +354,7 @@ bool OutputDevice::DrawPolyLineDirect(
             rB2DPolygon,
             fTransparency,
             aB2DLineWidth,
+            pStroke, // MM01
             eLineJoin,
             eLineCap,
             fMiterMinimumAngle,
diff --git a/vcl/source/outdev/transparent.cxx b/vcl/source/outdev/transparent.cxx
index fdb3115b2812..764d13fc80d8 100644
--- a/vcl/source/outdev/transparent.cxx
+++ b/vcl/source/outdev/transparent.cxx
@@ -278,6 +278,7 @@ void OutputDevice::DrawTransparent(
                     rPolygon,
                     fTransparency,
                     aHairlineWidth,
+                    nullptr, // MM01
                     basegfx::B2DLineJoin::NONE,
                     css::drawing::LineCap_BUTT,
                     basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
@@ -400,6 +401,7 @@ bool OutputDevice::DrawTransparentNatively ( const tools::PolyPolygon& rPolyPoly
                     rPolygon,
                     fTransparency,
                     aLineWidths,
+                    nullptr, // MM01
                     basegfx::B2DLineJoin::NONE,
                     css::drawing::LineCap_BUTT,
                     basegfx::deg2rad(15.0), // not used with B2DLineJoin::NONE, but the correct default
diff --git a/vcl/unx/generic/gdi/gdiimpl.cxx b/vcl/unx/generic/gdi/gdiimpl.cxx
index e0a4879ff6fb..62c29fb593bd 100644
--- a/vcl/unx/generic/gdi/gdiimpl.cxx
+++ b/vcl/unx/generic/gdi/gdiimpl.cxx
@@ -18,6 +18,8 @@
  */
 
 #include <memory>
+#include <numeric>
+
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/extensions/Xrender.h>
@@ -1656,6 +1658,7 @@ private:
     basegfx::B2DLineJoin                        meJoin;
     css::drawing::LineCap                       meCap;
     double                                      mfMiterMinimumAngle;
+    std::vector< double >                       maStroke;
 
 public:
     SystemDependentData_Triangulation(
@@ -1664,13 +1667,16 @@ public:
         const basegfx::B2DVector& rLineWidth,
         basegfx::B2DLineJoin eJoin,
         css::drawing::LineCap eCap,
-        double fMiterMinimumAngle);
+        double fMiterMinimumAngle,
+        const std::vector< double >* pStroke); // MM01
 
+    // read access
     const basegfx::triangulator::B2DTriangleVector& getTriangles() const { return maTriangles; }
     const basegfx::B2DVector& getLineWidth() const { return maLineWidth; }
     const basegfx::B2DLineJoin& getJoin() const { return meJoin; }
     const css::drawing::LineCap& getCap() const { return meCap; }
     double getMiterMinimumAngle() const { return mfMiterMinimumAngle; }
+    const std::vector< double >& getStroke() const { return maStroke; }
 
     virtual sal_Int64 estimateUsageInBytes() const override;
 };
@@ -1681,14 +1687,20 @@ SystemDependentData_Triangulation::SystemDependentData_Triangulation(
     const basegfx::B2DVector& rLineWidth,
     basegfx::B2DLineJoin eJoin,
     css::drawing::LineCap eCap,
-    double fMiterMinimumAngle)
+    double fMiterMinimumAngle,
+    const std::vector< double >* pStroke)
 :   basegfx::SystemDependentData(rSystemDependentDataManager),
     maTriangles(rTriangles),
     maLineWidth(rLineWidth),
     meJoin(eJoin),
     meCap(eCap),
-    mfMiterMinimumAngle(fMiterMinimumAngle)
+    mfMiterMinimumAngle(fMiterMinimumAngle),
+    maStroke()
 {
+    if(nullptr != pStroke)
+    {
+        maStroke = *pStroke;
+    }
 }
 
 sal_Int64 SystemDependentData_Triangulation::estimateUsageInBytes() const
@@ -1708,6 +1720,7 @@ bool X11SalGraphicsImpl::drawPolyLine(
     const basegfx::B2DPolygon& rPolygon,
     double fTransparency,
     const basegfx::B2DVector& rLineWidth,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
@@ -1725,7 +1738,6 @@ bool X11SalGraphicsImpl::drawPolyLine(
     const basegfx::B2DVector aDeviceLineWidths(bObjectToDeviceIsIdentity ? rLineWidth : rObjectToDevice * rLineWidth);
     const bool bCorrectLineWidth(!bObjectToDeviceIsIdentity && aDeviceLineWidths.getX() < 1.0 && aLineWidth.getX() >= 1.0);
     basegfx::B2DHomMatrix aObjectToDeviceInv;
-    basegfx::B2DPolygon aPolygon(rPolygon);
 
     if(bCorrectLineWidth)
     {
@@ -1743,6 +1755,25 @@ bool X11SalGraphicsImpl::drawPolyLine(
     std::shared_ptr<SystemDependentData_Triangulation> pSystemDependentData_Triangulation(
         rPolygon.getSystemDependentData<SystemDependentData_Triangulation>());
 
+    // MM01 need to do line dashing as fallback stuff here now
+    const double fDotDashLength(nullptr != pStroke ? std::accumulate(pStroke->begin(), pStroke->end(), 0.0) : 0.0);
+    const bool bStrokeUsed(0.0 != fDotDashLength);
+
+    if(pSystemDependentData_Triangulation)
+    {
+        // MM01 - check on stroke change. Used against not used, or if oth used,
+        // equal or different? Triangulation geometry creation depends heavily
+        // on stroke, independent of being transformation independent
+        const bool bStrokeWasUsed(!pSystemDependentData_Triangulation->getStroke().empty());
+
+        if(bStrokeWasUsed != bStrokeUsed
+        || (bStrokeUsed && *pStroke != pSystemDependentData_Triangulation->getStroke()))
+        {
+            // data invalid, forget
+            pSystemDependentData_Triangulation.reset();
+        }
+    }
+
     if(pSystemDependentData_Triangulation)
     {
         // check data validity (I)
@@ -1779,15 +1810,36 @@ bool X11SalGraphicsImpl::drawPolyLine(
 
     if(!pSystemDependentData_Triangulation)
     {
+        // MM01 need to do line dashing as fallback stuff here now
+        basegfx::B2DPolyPolygon aPolyPolygonLine;
+
+        if(bStrokeUsed)
+        {
+            // apply LineStyle
+            basegfx::utils::applyLineDashing(
+                rPolygon, // source
+                *pStroke, // pattern
+                &aPolyPolygonLine, // traget for lines
+                nullptr, // target for gaps
+                fDotDashLength); // full length if available
+        }
+        else
+        {
+            // no line dashing, just copy
+            aPolyPolygonLine.append(rPolygon);
+        }
+
         // try to create data
         if(bPixelSnapHairline)
         {
+            // Do NOT transform, but keep device-independent. To
+            // do so, transform to device for snap, but back again after
             if(!bObjectToDeviceIsIdentity)
             {
-                aPolygon.transform(rObjectToDevice);
+                aPolyPolygonLine.transform(rObjectToDevice);
             }
 
-            aPolygon = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolygon);
+            aPolyPolygonLine = basegfx::utils::snapPointsOfHorizontalOrVerticalEdges(aPolyPolygonLine);
 
             if(!bObjectToDeviceIsIdentity)
             {
@@ -1797,21 +1849,30 @@ bool X11SalGraphicsImpl::drawPolyLine(
                     aObjectToDeviceInv.invert();
                 }
 
-                aPolygon.transform(aObjectToDeviceInv);
+                aPolyPolygonLine.transform(aObjectToDeviceInv);
             }
         }
 
         basegfx::triangulator::B2DTriangleVector aTriangles;
-        const basegfx::B2DPolyPolygon aAreaPolyPoly(
+
+        // MM01 checked/verified for X11 (linux)
+        for(sal_uInt32 a(0); a < aPolyPolygonLine.count(); a++)
+        {
+            const basegfx::B2DPolygon aPolyLine(aPolyPolygonLine.getB2DPolygon(a));
+            // MM01 upps - commit 51b5b93092d6231615de470c62494c24e54828a1 removed
+            // this *central* geometry-creating lines (!) probably due to aAreaPolyPoly
+            // *not* being used - that's true, but the work is inside of filling
+            // aTriangles data (!)
             basegfx::utils::createAreaGeometry(
-                aPolygon,
+                aPolyLine,
                 0.5 * aLineWidth.getX(),
                 eLineJoin,
                 eLineCap,
                 basegfx::deg2rad(12.5),
                 0.4,
                 fMiterMinimumAngle,
-                &aTriangles));
+                &aTriangles); // CAUTION! This is *needed* since it creates the data!
+        }
 
         if(!aTriangles.empty())
         {
@@ -1824,7 +1885,8 @@ bool X11SalGraphicsImpl::drawPolyLine(
                 aLineWidth,
                 eLineJoin,
                 eLineCap,
-                fMiterMinimumAngle);
+                fMiterMinimumAngle,
+                pStroke);
         }
     }
 
diff --git a/vcl/unx/generic/gdi/gdiimpl.hxx b/vcl/unx/generic/gdi/gdiimpl.hxx
index 282b9a29a8d9..222bc6c7a3c1 100644
--- a/vcl/unx/generic/gdi/gdiimpl.hxx
+++ b/vcl/unx/generic/gdi/gdiimpl.hxx
@@ -173,6 +173,7 @@ public:
                 const basegfx::B2DPolygon&,
                 double fTransparency,
                 const basegfx::B2DVector& rLineWidths,
+                const std::vector< double >* pStroke, // MM01
                 basegfx::B2DLineJoin,
                 css::drawing::LineCap,
                 double fMiterMinimumAngle,
diff --git a/vcl/unx/generic/gdi/salgdi.cxx b/vcl/unx/generic/gdi/salgdi.cxx
index 1af613902663..fd3c926b95a5 100644
--- a/vcl/unx/generic/gdi/salgdi.cxx
+++ b/vcl/unx/generic/gdi/salgdi.cxx
@@ -706,6 +706,7 @@ bool X11SalGraphics::drawPolyLine(
     const basegfx::B2DPolygon& rPolygon,
     double fTransparency,
     const basegfx::B2DVector& rLineWidth,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
@@ -742,6 +743,7 @@ bool X11SalGraphics::drawPolyLine(
                 rPolygon,
                 fTransparency,
                 rLineWidth,
+                pStroke, // MM01
                 eLineJoin,
                 eLineCap,
                 fMiterMinimumAngle,
@@ -761,6 +763,7 @@ bool X11SalGraphics::drawPolyLine(
         rPolygon,
         fTransparency,
         rLineWidth,
+        pStroke, // MM01
         eLineJoin,
         eLineCap,
         fMiterMinimumAngle,
diff --git a/vcl/unx/generic/print/genpspgraphics.cxx b/vcl/unx/generic/print/genpspgraphics.cxx
index e40b9fd5cc82..7a5df6b3e262 100644
--- a/vcl/unx/generic/print/genpspgraphics.cxx
+++ b/vcl/unx/generic/print/genpspgraphics.cxx
@@ -419,6 +419,7 @@ bool GenPspGraphics::drawPolyLine(
     const basegfx::B2DPolygon&,
     double /*fTransparency*/,
     const basegfx::B2DVector& /*rLineWidths*/,
+    const std::vector< double >* /*pStroke*/, // MM01
     basegfx::B2DLineJoin /*eJoin*/,
     css::drawing::LineCap /*eLineCap*/,
     double /*fMiterMinimumAngle*/,
diff --git a/vcl/win/gdi/gdiimpl.cxx b/vcl/win/gdi/gdiimpl.cxx
index 434cdcbac8e4..26f972919ff4 100644
--- a/vcl/win/gdi/gdiimpl.cxx
+++ b/vcl/win/gdi/gdiimpl.cxx
@@ -17,6 +17,11 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <sal/config.h>
+
+#include <memory>
+#include <numeric>
+
 #include <svsys.h>
 
 #include "gdiimpl.hxx"
@@ -1957,18 +1962,19 @@ private:
     // all other values the triangulation is based on and
     // need to be compared with to check for data validity
     bool                                    mbNoLineJoin;
+    std::vector< double >                       maStroke;
 
 public:
     SystemDependentData_GraphicsPath(
         basegfx::SystemDependentDataManager& rSystemDependentDataManager,
         std::shared_ptr<Gdiplus::GraphicsPath>& rpGraphicsPath,
-        bool bNoLineJoin);
+        bool bNoLineJoin,
+        const std::vector< double >* pStroke); // MM01
 
-    // read access to Gdiplus::GraphicsPath
+    // read access
     std::shared_ptr<Gdiplus::GraphicsPath>& getGraphicsPath() { return mpGraphicsPath; }
-
-    // other data-validity access
     bool getNoLineJoin() const { return mbNoLineJoin; }
+    const std::vector< double >& getStroke() const { return maStroke; }
 
     virtual sal_Int64 estimateUsageInBytes() const override;
 };
@@ -1976,11 +1982,17 @@ public:
 SystemDependentData_GraphicsPath::SystemDependentData_GraphicsPath(
     basegfx::SystemDependentDataManager& rSystemDependentDataManager,
     std::shared_ptr<Gdiplus::GraphicsPath>& rpGraphicsPath,
-    bool bNoLineJoin)
+    bool bNoLineJoin,
+    const std::vector< double >* pStroke)
 :   basegfx::SystemDependentData(rSystemDependentDataManager),
     mpGraphicsPath(rpGraphicsPath),
-    mbNoLineJoin(bNoLineJoin)
+    mbNoLineJoin(bNoLineJoin),
+    maStroke()
 {
+    if(nullptr != pStroke)
+    {
+        maStroke = *pStroke;
+    }
 }
 
 sal_Int64 SystemDependentData_GraphicsPath::estimateUsageInBytes() const
@@ -2104,7 +2116,8 @@ bool WinSalGraphicsImpl::drawPolyPolygon(
         rPolyPolygon.addOrReplaceSystemDependentData<SystemDependentData_GraphicsPath>(
             ImplGetSystemDependentDataManager(),
             pGraphicsPath,
-            false);
+            false,
+            nullptr);
     }
 
     if(mrParent.getAntiAliasB2DDraw())
@@ -2164,12 +2177,14 @@ bool WinSalGraphicsImpl::drawPolyLine(
     const basegfx::B2DPolygon& rPolygon,
     double fTransparency,
     const basegfx::B2DVector& rLineWidths,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
     bool bPixelSnapHairline)
 {
-    if(!mbPen || 0 == rPolygon.count())
+    // MM01 check done for simple reasons
+    if(!mbPen || !rPolygon.count() || fTransparency < 0.0 || fTransparency > 1.0)
     {
         return true;
     }
@@ -2261,6 +2276,25 @@ bool WinSalGraphicsImpl::drawPolyLine(
     std::shared_ptr<SystemDependentData_GraphicsPath> pSystemDependentData_GraphicsPath(
         rPolygon.getSystemDependentData<SystemDependentData_GraphicsPath>());
 
+    // MM01 need to do line dashing as fallback stuff here now
+    const double fDotDashLength(nullptr != pStroke ? std::accumulate(pStroke->begin(), pStroke->end(), 0.0) : 0.0);
+    const bool bStrokeUsed(0.0 != fDotDashLength);
+
+    if(pSystemDependentData_GraphicsPath)
+    {
+        // MM01 - check on stroke change. Used against not used, or if oth used,
+        // equal or different? Triangulation geometry creation depends heavily
+        // on stroke, independent of being transformation independent
+        const bool bStrokeWasUsed(!pSystemDependentData_GraphicsPath->getStroke().empty());
+
+        if(bStrokeWasUsed != bStrokeUsed
+        || (bStrokeUsed && *pStroke != pSystemDependentData_GraphicsPath->getStroke()))
+        {
+            // data invalid, forget
+            pSystemDependentData_GraphicsPath.reset();
+        }
+    }
+
     if(pSystemDependentData_GraphicsPath)
     {
         // check data validity
@@ -2282,17 +2316,47 @@ bool WinSalGraphicsImpl::drawPolyLine(
         // fill data of buffered data
         pGraphicsPath.reset(new Gdiplus::GraphicsPath());
 
-        impAddB2DPolygonToGDIPlusGraphicsPathReal(
-            *pGraphicsPath,
-            rPolygon,
-            rObjectToDevice,
-            bNoLineJoin,
-            bPixelSnapHairline);
-
-        if(rPolygon.isClosed() && !bNoLineJoin)
+        if(bStrokeUsed)
         {
-            // #i101491# needed to create the correct line joins
-            pGraphicsPath->CloseFigure();
+            // MM01 need to do line dashing as fallback stuff here now
+            basegfx::B2DPolyPolygon aPolyPolygonLine;
+
+            // apply LineStyle
+            basegfx::utils::applyLineDashing(
+                rPolygon, // source
+                *pStroke, // pattern
+                &aPolyPolygonLine, // traget for lines
+                nullptr, // target for gaps
+                fDotDashLength); // full length if available
+
+            // MM01 checked/verified, ok
+            for(sal_uInt32 a(0); a < aPolyPolygonLine.count(); a++)
+            {
+                const basegfx::B2DPolygon aPolyLine(aPolyPolygonLine.getB2DPolygon(a));
+                pGraphicsPath->StartFigure();
+                impAddB2DPolygonToGDIPlusGraphicsPathReal(
+                    *pGraphicsPath,
+                    aPolyLine,
+                    rObjectToDevice,
+                    bNoLineJoin,
+                    bPixelSnapHairline);
+            }
+        }
+        else
+        {
+            // no line dashing, just copy
+            impAddB2DPolygonToGDIPlusGraphicsPathReal(
+                *pGraphicsPath,
+                rPolygon,
+                rObjectToDevice,
+                bNoLineJoin,
+                bPixelSnapHairline);
+
+            if(rPolygon.isClosed() && !bNoLineJoin)
+            {
+                // #i101491# needed to create the correct line joins
+                pGraphicsPath->CloseFigure();
+            }
         }
 
         // add to buffering mechanism
@@ -2301,7 +2365,8 @@ bool WinSalGraphicsImpl::drawPolyLine(
             rPolygon.addOrReplaceSystemDependentData<SystemDependentData_GraphicsPath>(
                 ImplGetSystemDependentDataManager(),
                 pGraphicsPath,
-                bNoLineJoin);
+                bNoLineJoin,
+                pStroke);
         }
     }
 
diff --git a/vcl/win/gdi/gdiimpl.hxx b/vcl/win/gdi/gdiimpl.hxx
index 54d75bd9291c..086d7312b695 100644
--- a/vcl/win/gdi/gdiimpl.hxx
+++ b/vcl/win/gdi/gdiimpl.hxx
@@ -117,6 +117,7 @@ public:
                 const basegfx::B2DPolygon&,
                 double fTransparency,
                 const basegfx::B2DVector& rLineWidths,
+                const std::vector< double >* pStroke, // MM01
                 basegfx::B2DLineJoin,
                 css::drawing::LineCap,
                 double fMiterMinimumAngle,
diff --git a/vcl/win/gdi/salgdi_gdiplus.cxx b/vcl/win/gdi/salgdi_gdiplus.cxx
index 99c7d0e506e9..ce2f2cc69c20 100644
--- a/vcl/win/gdi/salgdi_gdiplus.cxx
+++ b/vcl/win/gdi/salgdi_gdiplus.cxx
@@ -42,6 +42,7 @@ bool WinSalGraphics::drawPolyLine(
     const basegfx::B2DPolygon& rPolygon,
     double fTransparency,
     const basegfx::B2DVector& rLineWidths,
+    const std::vector< double >* pStroke, // MM01
     basegfx::B2DLineJoin eLineJoin,
     css::drawing::LineCap eLineCap,
     double fMiterMinimumAngle,
@@ -52,6 +53,7 @@ bool WinSalGraphics::drawPolyLine(
         rPolygon,
         fTransparency,
         rLineWidths,
+        pStroke, // MM01
         eLineJoin,
         eLineCap,
         fMiterMinimumAngle,