tdf#123504: 0 and 360 are different angles in charts

This partly reverts commit 81302f33.

Reviewed-on: https://gerrit.libreoffice.org/69440
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
(cherry picked from commit 166a4989)

Change-Id: I40cbe739eb4497b8217aca56a2c3661ed1e491f4
Reviewed-on: https://gerrit.libreoffice.org/69447
Tested-by: Jenkins
Reviewed-by: Xisco Faulí <xiscofauli@libreoffice.org>

chart2/qa/extras/chart2import.cxx

@@ -118,6 +118,7 @@ public:
     void testTdf121205();
 
     void testTdf114179();
+    void testTdf123504();
 
     CPPUNIT_TEST_SUITE(Chart2ImportTest);
     CPPUNIT_TEST(Fdo60083);
@@ -190,6 +191,7 @@ public:
     CPPUNIT_TEST(testTdf121205);
 
     CPPUNIT_TEST(testTdf114179);
+    CPPUNIT_TEST(testTdf123504);
 
     CPPUNIT_TEST_SUITE_END();
 
@@ -1699,6 +1701,37 @@ void Chart2ImportTest::testTdf114179()
     CPPUNIT_ASSERT( aSize.Height > 0);
 }
 
+void Chart2ImportTest::testTdf123504()
+{
+    load("/chart2/qa/extras/data/ods/", "pie_chart_100_and_0.ods");
+    Reference<chart::XChartDocument> xChartDoc(getChartDocFromSheet(0, mxComponent),
+        UNO_QUERY_THROW);
+
+    Reference<chart2::XChartDocument> xChartDoc2(xChartDoc, UNO_QUERY_THROW);
+    Reference<chart2::XChartType> xChartType(getChartTypeFromDoc(xChartDoc2, 0), UNO_SET_THROW);
+    auto aDataSeriesYValues = getDataSeriesYValuesFromChartType(xChartType);
+    CPPUNIT_ASSERT_EQUAL(size_t(1), aDataSeriesYValues.size());
+
+    Reference<drawing::XDrawPageSupplier> xDrawPageSupplier(xChartDoc, UNO_QUERY_THROW);
+    Reference<drawing::XDrawPage> xDrawPage(xDrawPageSupplier->getDrawPage(), UNO_SET_THROW);
+    Reference<drawing::XShapes> xShapes(xDrawPage->getByIndex(0), UNO_QUERY_THROW);
+    Reference<drawing::XShape> xSeriesSlices(getShapeByName(xShapes, "CID/D=0:CS=0:CT=0:Series=0"),
+        UNO_SET_THROW);
+
+    Reference<container::XIndexAccess> xIndexAccess(xSeriesSlices, UNO_QUERY_THROW);
+    CPPUNIT_ASSERT_EQUAL(sal_Int32(1), xIndexAccess->getCount());
+    Reference<drawing::XShape> xSlice(xIndexAccess->getByIndex(0), UNO_QUERY_THROW);
+
+    // Check size and position of the only slice in the chart (100%)
+    // In the regressed state, it used to be 0-sized at position 0,0
+    awt::Point aSlicePosition = xSlice->getPosition();
+    CPPUNIT_ASSERT_GREATER(sal_Int32(3000), aSlicePosition.X);
+    CPPUNIT_ASSERT_GREATER(sal_Int32(150), aSlicePosition.Y);
+    awt::Size aSliceSize = xSlice->getSize();
+    CPPUNIT_ASSERT_GREATER(sal_Int32(8500), aSliceSize.Height);
+    CPPUNIT_ASSERT_GREATER(sal_Int32(8500), aSliceSize.Width);
+}
+
 CPPUNIT_TEST_SUITE_REGISTRATION(Chart2ImportTest);
 
 CPPUNIT_PLUGIN_IMPLEMENT();

chart2/source/view/main/PlottingPositionHelper.cxx

@@ -35,7 +35,6 @@
 
 #include <o3tl/make_unique.hxx>
 #include <rtl/math.hxx>
-#include <tools/helpers.hxx>
 
 namespace chart
 {
@@ -420,10 +419,11 @@ double PolarPlottingPositionHelper::getWidthAngleDegree( double& fStartLogicValu
         && !::rtl::math::approxEqual( fStartLogicValueOnAngleAxis, fEndLogicValueOnAngleAxis ) )
         fWidthAngleDegree = 360.0;
 
-    while(fWidthAngleDegree<0.0)
-        fWidthAngleDegree+=360.0;
-    while(fWidthAngleDegree>360.0)
-        fWidthAngleDegree-=360.0;
+    // tdf#123504: both 0 and 360 are valid and different values here!
+    while (fWidthAngleDegree < 0.0)
+        fWidthAngleDegree += 360.0;
+    while (fWidthAngleDegree > 360.0)
+        fWidthAngleDegree -= 360.0;
 
     return fWidthAngleDegree;
 }
@@ -476,7 +476,12 @@ double PolarPlottingPositionHelper::transformToAngleDegree( double fLogicValueOn
     fRet = m_fAngleDegreeOffset
                   + fAxisAngleScaleDirection*(fScaledLogicAngleValue-MinAngleValue)*360.0
                     /fabs(MaxAngleValue-MinAngleValue);
-    return NormAngle360(fRet);
+    // tdf#123504: both 0 and 360 are valid and different values here!
+    while (fRet > 360.0)
+        fRet -= 360.0;
+    while (fRet < 0)
+        fRet += 360.0;
+    return fRet;
 }
 
 /**

chart2/source/view/main/PolarLabelPositionHelper.cxx

@@ -25,8 +25,6 @@
 
 #include <com/sun/star/chart/DataLabelPlacement.hpp>
 
-#include <tools/helpers.hxx>
-
 namespace chart
 {
 using namespace ::com::sun::star;
@@ -124,7 +122,11 @@ awt::Point PolarLabelPositionHelper::getLabelScreenPositionAndAlignmentForUnitCi
     //set LabelAlignment
     if( !bCenter )
     {
-        fAngleDegree = NormAngle360(fAngleDegree);
+        // tdf#123504: both 0 and 360 are valid and different values here!
+        while (fAngleDegree > 360.0)
+            fAngleDegree -= 360.0;
+        while (fAngleDegree < 0.0)
+            fAngleDegree += 360.0;
 
         bool bOutside = nLabelPlacement == css::chart::DataLabelPlacement::OUTSIDE;
 

chart2/source/view/main/ShapeFactory.cxx

@@ -877,7 +877,11 @@ uno::Reference< drawing::XShape >
     if( !xTarget.is() )
         return nullptr;
 
-    fUnitCircleWidthAngleDegree = NormAngle360(fUnitCircleWidthAngleDegree);
+    // tdf#123504: both 0 and 360 are valid and different values here!
+    while (fUnitCircleWidthAngleDegree > 360)
+        fUnitCircleWidthAngleDegree -= 360.0;
+    while (fUnitCircleWidthAngleDegree < 0)
+        fUnitCircleWidthAngleDegree += 360.0;
 
     //create shape
     uno::Reference< drawing::XShape > xShape(
@@ -926,9 +930,10 @@ uno::Reference< drawing::XShape >
     if( !xTarget.is() )
         return nullptr;
 
-    while(fUnitCircleWidthAngleDegree>360)
+    // tdf#123504: both 0 and 360 are valid and different values here!
+    while (fUnitCircleWidthAngleDegree > 360)
         fUnitCircleWidthAngleDegree -= 360.0;
-    while(fUnitCircleWidthAngleDegree<0)
+    while (fUnitCircleWidthAngleDegree < 0)
         fUnitCircleWidthAngleDegree += 360.0;
 
     //create shape