tdf#111798 Fix deformed export of flipped custom shapes to pptx

Shapes were deformed because flipping wasn't considered when removing
the rotation. Also WriteShapeTransformation needs information about
flipping to convert the angle correctly.

Change-Id: I7d485e93c00e02b9ec6c73ad6ae2876e5bc6360a
Reviewed-on: https://gerrit.libreoffice.org/41462Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>

include/oox/export/drawingml.hxx

@@ -189,8 +189,8 @@ public:
             const OUString& rURL, bool bRelPathToMedia = false , const Graphic *pGraphic=nullptr );
     void WriteBlipMode( const css::uno::Reference< css::beans::XPropertySet >& rXPropSet, const OUString& rURL );
 
-    void WriteShapeTransformation( const css::uno::Reference< css::drawing::XShape >& rXShape,
-                  sal_Int32 nXmlNamespace, bool bFlipH = false, bool bFlipV = false, bool bSuppressRotation = false );
+    void WriteShapeTransformation(const css::uno::Reference< css::drawing::XShape >& rXShape,
+                  sal_Int32 nXmlNamespace, bool bFlipH = false, bool bFlipV = false, bool bSuppressRotation = false, bool bSuppressFlipping = false );
     void WriteTransformation( const tools::Rectangle& rRectangle,
                   sal_Int32 nXmlNamespace, bool bFlipH = false, bool bFlipV = false, sal_Int32 nRotation = 0 );
 

oox/source/export/drawingml.cxx

@@ -1157,11 +1157,6 @@ void DrawingML::WriteStretch( const css::uno::Reference< css::beans::XPropertySe
 void DrawingML::WriteTransformation( const tools::Rectangle& rRect,
         sal_Int32 nXmlNamespace, bool bFlipH, bool bFlipV, sal_Int32 nRotation )
 {
-    //OOXML flips shapes before rotating them.
-    if(bFlipH)
-        nRotation = nRotation * -1 + 60000*360;
-    if(bFlipV)
-        nRotation = nRotation * -1 + 60000*360;
 
     mpFS->startElementNS( nXmlNamespace, XML_xfrm,
                           XML_flipH, bFlipH ? "1" : nullptr,
@@ -1183,7 +1178,7 @@ void DrawingML::WriteTransformation( const tools::Rectangle& rRect,
     mpFS->endElementNS( nXmlNamespace, XML_xfrm );
 }
 
-void DrawingML::WriteShapeTransformation( const Reference< XShape >& rXShape, sal_Int32 nXmlNamespace, bool bFlipH, bool bFlipV, bool bSuppressRotation  )
+void DrawingML::WriteShapeTransformation( const Reference< XShape >& rXShape, sal_Int32 nXmlNamespace, bool bFlipH, bool bFlipV, bool bSuppressRotation, bool bSuppressFlipping )
 {
     SAL_INFO("oox.shape",  "write shape transformation");
 
@@ -1220,6 +1215,14 @@ void DrawingML::WriteShapeTransformation( const Reference< XShape >& rXShape, sa
         if (xPropertySetInfo->hasPropertyByName("RotateAngle"))
             xPropertySet->getPropertyValue("RotateAngle") >>= nRotation;
     }
+
+    // OOXML flips shapes before rotating them.
+    if(bFlipH != bFlipV)
+        nRotation = nRotation * -1 + 36000;
+
+    if(bSuppressFlipping)
+        bFlipH = bFlipV = false;
+
     WriteTransformation( tools::Rectangle( Point( aPos.X, aPos.Y ), Size( aSize.Width, aSize.Height ) ), nXmlNamespace, bFlipH, bFlipV, OOX_DRAWINGML_EXPORT_ROTATE_CLOCKWISIFY(nRotation) );
 }
 

oox/source/export/shapes.cxx

@@ -823,7 +823,7 @@ ShapeExport& ShapeExport::WriteCustomShape( const Reference< XShape >& xShape )
 
     if (bHasHandles && bCustGeom && pShape)
     {
-        WriteShapeTransformation( xShape, XML_a ); // do not flip, polypolygon coordinates are flipped already
+        WriteShapeTransformation( xShape, XML_a, bFlipH, bFlipV, false, true );// do not flip, polypolygon coordinates are flipped already
         tools::PolyPolygon aPolyPolygon( pShape->GetLineGeometry(true) );
         sal_Int32 nRotation = 0;
         // The RotateAngle property's value is independent from any flipping, and that's exactly what we need here.
@@ -831,8 +831,10 @@ ShapeExport& ShapeExport::WriteCustomShape( const Reference< XShape >& xShape )
         uno::Reference<beans::XPropertySetInfo> xPropertySetInfo = xPropertySet->getPropertySetInfo();
         if (xPropertySetInfo->hasPropertyByName("RotateAngle"))
             xPropertySet->getPropertyValue("RotateAngle") >>= nRotation;
+        // Remove rotation
+        bool bInvertRotation = bFlipH != bFlipV;
         if (nRotation != 0)
-            aPolyPolygon.Rotate(Point(0,0), static_cast<sal_uInt16>(3600-nRotation/10));
+            aPolyPolygon.Rotate(Point(0,0), static_cast<sal_uInt16>(bInvertRotation ? nRotation/10 : 3600-nRotation/10));
         WritePolyPolygon( aPolyPolygon );
     }
     else if (bCustGeom)

sd/qa/unit/export-tests-ooxml2.cxx

@@ -99,6 +99,7 @@ public:
     void testTdf105739();
     void testPageBitmapWithTransparency();
     void testPptmContentType();
+    void testTdf111798();
     void testPptmVBAStream();
     void testTdf111518();
     void testTdf100387();
@@ -128,6 +129,7 @@ public:
     CPPUNIT_TEST(testTdf105739);
     CPPUNIT_TEST(testPageBitmapWithTransparency);
     CPPUNIT_TEST(testPptmContentType);
+    CPPUNIT_TEST(testTdf111798);
     CPPUNIT_TEST(testPptmVBAStream);
     CPPUNIT_TEST(testTdf111518);
     CPPUNIT_TEST(testTdf100387);
@@ -828,6 +830,63 @@ void SdOOXMLExportTest2::testPptmContentType()
     xDocShRef->DoClose();
 }
 
+void SdOOXMLExportTest2::testTdf111798()
+{
+    sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc("/sd/qa/unit/data/odp/tdf111798.odp"), ODP);
+    utl::TempFile tempFile;
+    xDocShRef = saveAndReload(xDocShRef.get(), PPTX, &tempFile);
+    xDocShRef->DoClose();
+    xmlDocPtr pXmlDoc = parseExport(tempFile, "ppt/slides/slide1.xml");
+
+    const OUString data[][29] =
+    {
+        {
+            "2700000", "2458080", "2414880", "1439640", "1440000",
+            "moveTo",  "0",    "3000",
+            "lnTo[1]", "3000", "3000",
+            "lnTo[2]", "3000", "4000",
+            "lnTo[3]", "4000", "2000",
+            "lnTo[4]", "3000", "0",
+            "lnTo[5]", "3000", "1000",
+            "lnTo[6]", "0",    "1000",
+            "lnTo[7]", "0",    "3000"
+        },
+        {
+            "2700000", "6778080", "2414880", "1439640", "1440000",
+            "moveTo",  "3000", "0",
+            "lnTo[1]", "3000", "3000",
+            "lnTo[2]", "4000", "3000",
+            "lnTo[3]", "2000", "4000",
+            "lnTo[4]", "0", "3000",
+            "lnTo[5]", "1000", "3000",
+            "lnTo[6]", "1000", "0",
+            "lnTo[7]", "3000", "0"
+        }
+    };
+
+    for (size_t nShapeIndex = 0; nShapeIndex < SAL_N_ELEMENTS(data); nShapeIndex++)
+    {
+        size_t nDataIndex = 0;
+
+        const OString sSpPr = "/p:sld/p:cSld/p:spTree/p:sp[" + OString::number(nShapeIndex + 1) + "]/p:spPr";
+        const OString sXfrm = sSpPr + "/a:xfrm";
+        assertXPath(pXmlDoc, sXfrm, "rot", data[nShapeIndex][nDataIndex++]);
+        const OString sOff = sXfrm + "/a:off";
+        assertXPath(pXmlDoc, sOff, "x", data[nShapeIndex][nDataIndex++]);
+        assertXPath(pXmlDoc, sOff, "y", data[nShapeIndex][nDataIndex++]);
+        const OString sExt = sXfrm + "/a:ext";
+        assertXPath(pXmlDoc, sExt, "cx", data[nShapeIndex][nDataIndex++]);
+        assertXPath(pXmlDoc, sExt, "cy", data[nShapeIndex][nDataIndex++]);
+
+        while (nDataIndex < SAL_N_ELEMENTS(data[nShapeIndex]))
+        {
+            const OString sPt = sSpPr + "/a:custGeom/a:pathLst/a:path/a:" + data[nShapeIndex][nDataIndex++].toUtf8() + "/a:pt";
+            assertXPath(pXmlDoc, sPt, "x", data[nShapeIndex][nDataIndex++]);
+            assertXPath(pXmlDoc, sPt, "y", data[nShapeIndex][nDataIndex++]);
+        }
+    }
+}
+
 void SdOOXMLExportTest2::testPptmVBAStream()
 {
     ::sd::DrawDocShellRef xDocShRef = loadURL(m_directories.getURLFromSrc("sd/qa/unit/data/pptm/macro.pptm"), PPTM);