Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1971 insertions, 0 deletions

diff --git a/chart2/source/view/axes/VCartesianAxis.cxx b/chart2/source/view/axes/VCartesianAxis.cxx
new file mode 100644
index 000000000..0ea37f9a7
--- /dev/null
+++ b/chart2/source/view/axes/VCartesianAxis.cxx
@@ -0,0 +1,1971 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "VCartesianAxis.hxx"
+#include <PlottingPositionHelper.hxx>
+#include <ShapeFactory.hxx>
+#include <PropertyMapper.hxx>
+#include <NumberFormatterWrapper.hxx>
+#include <LabelPositionHelper.hxx>
+#include <BaseGFXHelper.hxx>
+#include <Axis.hxx>
+#include <AxisHelper.hxx>
+#include "Tickmarks_Equidistant.hxx"
+#include <ExplicitCategoriesProvider.hxx>
+#include <com/sun/star/chart2/AxisType.hpp>
+#include <o3tl/safeint.hxx>
+#include <rtl/math.hxx>
+#include <tools/diagnose_ex.h>
+#include <tools/color.hxx>
+#include <svx/unoshape.hxx>
+#include <svx/unoshtxt.hxx>
+
+#include <comphelper/scopeguard.hxx>
+
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolygonclipper.hxx>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+
+#include <algorithm>
+#include <limits>
+#include <memory>
+
+using namespace ::com::sun::star;
+using ::com::sun::star::uno::Reference;
+using ::basegfx::B2DVector;
+using ::basegfx::B2DPolygon;
+using ::basegfx::B2DPolyPolygon;
+
+namespace chart {
+
+VCartesianAxis::VCartesianAxis( const AxisProperties& rAxisProperties
+            , const Reference< util::XNumberFormatsSupplier >& xNumberFormatsSupplier
+            , sal_Int32 nDimensionIndex, sal_Int32 nDimensionCount
+            , PlottingPositionHelper* pPosHelper )//takes ownership
+            : VAxisBase( nDimensionIndex, nDimensionCount, rAxisProperties, xNumberFormatsSupplier )
+{
+    if( pPosHelper )
+        m_pPosHelper = pPosHelper;
+    else
+        m_pPosHelper = new PlottingPositionHelper();
+}
+
+VCartesianAxis::~VCartesianAxis()
+{
+    delete m_pPosHelper;
+    m_pPosHelper = nullptr;
+}
+
+static void lcl_ResizeTextShapeToFitAvailableSpace( SvxShapeText& rShape2DText,
+                                             const AxisLabelProperties& rAxisLabelProperties,
+                                             const OUString& rLabel,
+                                             const tNameSequence& rPropNames,
+                                             const tAnySequence& rPropValues,
+                                             const bool bIsHorizontalAxis )
+{
+    bool bTextHorizontal = rAxisLabelProperties.m_fRotationAngleDegree != 0.0;
+    bool bIsDirectionVertical = bIsHorizontalAxis && bTextHorizontal;
+    const sal_Int32 nFullSize = bIsDirectionVertical ? rAxisLabelProperties.m_aFontReferenceSize.Height : rAxisLabelProperties.m_aFontReferenceSize.Width;
+
+    if( !nFullSize || !rLabel.getLength() )
+        return;
+
+    const sal_Int32 nAvgCharWidth = rShape2DText.getSize().Width / rLabel.getLength();
+
+    sal_Int32 nMaxLabelsSize = bIsDirectionVertical ? rAxisLabelProperties.m_aMaximumSpaceForLabels.Height : rAxisLabelProperties.m_aMaximumSpaceForLabels.Width;
+
+    awt::Size aSizeAfterRotation = ShapeFactory::getSizeAfterRotation(rShape2DText, rAxisLabelProperties.m_fRotationAngleDegree);
+
+    const sal_Int32 nTextSize = bIsDirectionVertical ? aSizeAfterRotation.Height : aSizeAfterRotation.Width;
+
+    if( !nAvgCharWidth )
+        return;
+
+    static const OUStringLiteral sDots = u"...";
+    const sal_Int32 nCharsToRemove = ( nTextSize - nMaxLabelsSize ) / nAvgCharWidth + 1;
+    sal_Int32 nNewLen = rLabel.getLength() - nCharsToRemove - sDots.getLength();
+    // Prevent from showing only dots
+    if (nNewLen < 0)
+        nNewLen = ( rLabel.getLength() >= sDots.getLength() ) ? sDots.getLength() : rLabel.getLength();
+
+    bool bCrop = nCharsToRemove > 0;
+    if( !bCrop )
+        return;
+
+    OUString aNewLabel = rLabel.copy( 0, nNewLen );
+    if( nNewLen > sDots.getLength() )
+        aNewLabel += sDots;
+    rShape2DText.setString( aNewLabel );
+
+    PropertyMapper::setMultiProperties( rPropNames, rPropValues, rShape2DText );
+}
+
+static rtl::Reference<SvxShapeText> createSingleLabel(
+            const rtl::Reference< SvxShapeGroupAnyD >& xTarget
+          , const awt::Point& rAnchorScreenPosition2D
+          , const OUString& rLabel
+          , const AxisLabelProperties& rAxisLabelProperties
+          , const AxisProperties& rAxisProperties
+          , const tNameSequence& rPropNames
+          , const tAnySequence& rPropValues
+          , const bool bIsHorizontalAxis
+          )
+{
+    if(rLabel.isEmpty())
+        return nullptr;
+
+    // #i78696# use mathematically correct rotation now
+    const double fRotationAnglePi(-basegfx::deg2rad(rAxisLabelProperties.m_fRotationAngleDegree));
+    uno::Any aATransformation = ShapeFactory::makeTransformation( rAnchorScreenPosition2D, fRotationAnglePi );
+    OUString aLabel = ShapeFactory::getStackedString( rLabel, rAxisLabelProperties.m_bStackCharacters );
+
+    rtl::Reference<SvxShapeText> xShape2DText =
+                    ShapeFactory::createText( xTarget, aLabel, rPropNames, rPropValues, aATransformation );
+
+    if( rAxisProperties.m_bLimitSpaceForLabels )
+        lcl_ResizeTextShapeToFitAvailableSpace(*xShape2DText, rAxisLabelProperties, aLabel, rPropNames, rPropValues, bIsHorizontalAxis);
+
+    LabelPositionHelper::correctPositionForRotation( xShape2DText
+        , rAxisProperties.maLabelAlignment.meAlignment, rAxisLabelProperties.m_fRotationAngleDegree, rAxisProperties.m_bComplexCategories );
+
+    return xShape2DText;
+}
+
+static bool lcl_doesShapeOverlapWithTickmark( SvxShape& rShape
+                       , double fRotationAngleDegree
+                       , const basegfx::B2DVector& rTickScreenPosition )
+{
+    ::basegfx::B2IRectangle aShapeRect = BaseGFXHelper::makeRectangle(rShape.getPosition(), ShapeFactory::getSizeAfterRotation( rShape, fRotationAngleDegree ));
+
+    basegfx::B2IVector aPosition(
+        static_cast<sal_Int32>( rTickScreenPosition.getX() )
+        , static_cast<sal_Int32>( rTickScreenPosition.getY() ) );
+    return aShapeRect.isInside(aPosition);
+}
+
+static void lcl_getRotatedPolygon( B2DPolygon &aPoly, const ::basegfx::B2DRectangle &aRect, const awt::Point &aPos, const double fRotationAngleDegree )
+{
+    aPoly = basegfx::utils::createPolygonFromRect( aRect );
+
+    // For rotating the rectangle we use the opposite angle,
+    // since `B2DHomMatrix` class used for
+    // representing the transformation, performs rotations in the positive
+    // direction (from the X axis to the Y axis). However since the coordinate
+    // system used by the chart has the Y-axis pointing downward, a rotation in
+    // the positive direction means a clockwise rotation. On the contrary text
+    // labels are rotated counterclockwise.
+    // The rotation is performed around the top-left vertex of the rectangle
+    // which is then moved to its final position by using the top-left
+    // vertex of the text label bounding box (aPos) as the translation vector.
+    ::basegfx::B2DHomMatrix aMatrix;
+    aMatrix.rotate(-basegfx::deg2rad(fRotationAngleDegree));
+    aMatrix.translate( aPos.X, aPos.Y);
+    aPoly.transform( aMatrix );
+}
+
+static bool doesOverlap( const rtl::Reference<SvxShapeText>& xShape1
+                , const rtl::Reference<SvxShapeText>& xShape2
+                , double fRotationAngleDegree )
+{
+    if( !xShape1.is() || !xShape2.is() )
+        return false;
+
+    ::basegfx::B2DRectangle aRect1( BaseGFXHelper::makeRectangle( awt::Point(0,0), xShape1->getSize()));
+    ::basegfx::B2DRectangle aRect2( BaseGFXHelper::makeRectangle( awt::Point(0,0), xShape2->getSize()));
+
+    B2DPolygon aPoly1;
+    B2DPolygon aPoly2;
+    lcl_getRotatedPolygon( aPoly1, aRect1, xShape1->getPosition(), fRotationAngleDegree );
+    lcl_getRotatedPolygon( aPoly2, aRect2, xShape2->getPosition(), fRotationAngleDegree );
+
+    B2DPolyPolygon aPolyPoly1, aPolyPoly2;
+    aPolyPoly1.append( aPoly1 );
+    aPolyPoly2.append( aPoly2 );
+    B2DPolyPolygon overlapPoly = ::basegfx::utils::clipPolyPolygonOnPolyPolygon( aPolyPoly1, aPolyPoly2, true, false );
+
+    return (overlapPoly.count() > 0);
+}
+
+static void removeShapesAtWrongRhythm( TickIter& rIter
+                              , sal_Int32 nCorrectRhythm
+                              , sal_Int32 nMaxTickToCheck
+                              , const rtl::Reference< SvxShapeGroupAnyD >& xTarget )
+{
+    sal_Int32 nTick = 0;
+    for( TickInfo* pTickInfo = rIter.firstInfo()
+        ; pTickInfo && nTick <= nMaxTickToCheck
+        ; pTickInfo = rIter.nextInfo(), nTick++ )
+    {
+        //remove labels which does not fit into the rhythm
+        if( nTick%nCorrectRhythm != 0)
+        {
+            if(pTickInfo->xTextShape.is())
+            {
+                xTarget->remove(pTickInfo->xTextShape);
+                pTickInfo->xTextShape = nullptr;
+            }
+        }
+    }
+}
+
+namespace {
+
+/**
+ * If the labels are staggered and bInnerLine is true we iterate through
+ * only those labels that are closer to the diagram.
+ *
+ * If the labels are staggered and bInnerLine is false we iterate through
+ * only those that are farther from the diagram.
+ *
+ * If the labels are not staggered we iterate through all labels.
+ */
+class LabelIterator : public TickIter
+{
+public:
+    LabelIterator( TickInfoArrayType& rTickInfoVector
+            , const AxisLabelStaggering eAxisLabelStaggering
+            , bool bInnerLine );
+
+    virtual TickInfo*   firstInfo() override;
+    virtual TickInfo*   nextInfo() override;
+
+private: //member
+    PureTickIter m_aPureTickIter;
+    const AxisLabelStaggering   m_eAxisLabelStaggering;
+    bool m_bInnerLine;
+};
+
+}
+
+LabelIterator::LabelIterator( TickInfoArrayType& rTickInfoVector
+            , const AxisLabelStaggering eAxisLabelStaggering
+            , bool bInnerLine )
+            : m_aPureTickIter( rTickInfoVector )
+            , m_eAxisLabelStaggering(eAxisLabelStaggering)
+            , m_bInnerLine(bInnerLine)
+{
+}
+
+TickInfo* LabelIterator::firstInfo()
+{
+    TickInfo* pTickInfo = m_aPureTickIter.firstInfo();
+    while( pTickInfo && !pTickInfo->xTextShape.is() )
+        pTickInfo = m_aPureTickIter.nextInfo();
+    if(!pTickInfo)
+        return nullptr;
+    if( (m_eAxisLabelStaggering==AxisLabelStaggering::StaggerEven && m_bInnerLine)
+        ||
+        (m_eAxisLabelStaggering==AxisLabelStaggering::StaggerOdd && !m_bInnerLine)
+        )
+    {
+        //skip first label
+        do
+            pTickInfo = m_aPureTickIter.nextInfo();
+        while( pTickInfo && !pTickInfo->xTextShape.is() );
+    }
+    if(!pTickInfo)
+        return nullptr;
+    return pTickInfo;
+}
+
+TickInfo* LabelIterator::nextInfo()
+{
+    TickInfo* pTickInfo = nullptr;
+    //get next label
+    do
+        pTickInfo = m_aPureTickIter.nextInfo();
+    while( pTickInfo && !pTickInfo->xTextShape.is() );
+
+    if(  m_eAxisLabelStaggering==AxisLabelStaggering::StaggerEven
+      || m_eAxisLabelStaggering==AxisLabelStaggering::StaggerOdd )
+    {
+        //skip one label
+        do
+            pTickInfo = m_aPureTickIter.nextInfo();
+        while( pTickInfo && !pTickInfo->xTextShape.is() );
+    }
+    return pTickInfo;
+}
+
+static B2DVector lcl_getLabelsDistance( TickIter& rIter, const B2DVector& rDistanceTickToText, double fRotationAngleDegree )
+{
+    //calculates the height or width of a line of labels
+    //thus a following line of labels can be shifted for that distance
+
+    B2DVector aRet(0,0);
+
+    sal_Int32 nDistanceTickToText = static_cast<sal_Int32>( rDistanceTickToText.getLength() );
+    if( nDistanceTickToText==0.0)
+        return aRet;
+
+    B2DVector aStaggerDirection(rDistanceTickToText);
+    aStaggerDirection.normalize();
+
+    sal_Int32 nDistance=0;
+    rtl::Reference< SvxShapeText >  xShape2DText;
+    for( TickInfo* pTickInfo = rIter.firstInfo()
+        ; pTickInfo
+        ; pTickInfo = rIter.nextInfo() )
+    {
+        xShape2DText = pTickInfo->xTextShape;
+        if( xShape2DText.is() )
+        {
+            awt::Size aSize = ShapeFactory::getSizeAfterRotation( *xShape2DText, fRotationAngleDegree );
+            if(fabs(aStaggerDirection.getX())>fabs(aStaggerDirection.getY()))
+                nDistance = std::max(nDistance,aSize.Width);
+            else
+                nDistance = std::max(nDistance,aSize.Height);
+        }
+    }
+
+    aRet = aStaggerDirection*nDistance;
+
+    //add extra distance for vertical distance
+    if(fabs(aStaggerDirection.getX())>fabs(aStaggerDirection.getY()))
+        aRet += rDistanceTickToText;
+
+    return aRet;
+}
+
+static void lcl_shiftLabels( TickIter& rIter, const B2DVector& rStaggerDistance )
+{
+    if(rStaggerDistance.getLength()==0.0)
+        return;
+    for( TickInfo* pTickInfo = rIter.firstInfo()
+        ; pTickInfo
+        ; pTickInfo = rIter.nextInfo() )
+    {
+        const rtl::Reference<SvxShapeText>& xShape2DText = pTickInfo->xTextShape;
+        if( xShape2DText.is() )
+        {
+            awt::Point aPos  = xShape2DText->getPosition();
+            aPos.X += static_cast<sal_Int32>(rStaggerDistance.getX());
+            aPos.Y += static_cast<sal_Int32>(rStaggerDistance.getY());
+            xShape2DText->setPosition( aPos );
+        }
+    }
+}
+
+static bool lcl_hasWordBreak( const rtl::Reference<SvxShapeText>& xShape )
+{
+    if (!xShape.is())
+        return false;
+
+    SvxTextEditSource* pTextEditSource = dynamic_cast<SvxTextEditSource*>(xShape->GetEditSource());
+    if (!pTextEditSource)
+        return false;
+
+    pTextEditSource->UpdateOutliner();
+    SvxTextForwarder* pTextForwarder = pTextEditSource->GetTextForwarder();
+    if (!pTextForwarder)
+        return false;
+
+    sal_Int32 nParaCount = pTextForwarder->GetParagraphCount();
+    for ( sal_Int32 nPara = 0; nPara < nParaCount; ++nPara )
+    {
+        sal_Int32 nLineCount = pTextForwarder->GetLineCount( nPara );
+        for ( sal_Int32 nLine = 0; nLine < nLineCount; ++nLine )
+        {
+            sal_Int32 nLineStart = 0;
+            sal_Int32 nLineEnd = 0;
+            pTextForwarder->GetLineBoundaries( nLineStart, nLineEnd, nPara, nLine );
+            assert(nLineStart >= 0);
+            sal_Int32 nWordStart = 0;
+            sal_Int32 nWordEnd = 0;
+            if ( pTextForwarder->GetWordIndices( nPara, nLineStart, nWordStart, nWordEnd ) &&
+                 ( nWordStart != nLineStart ) )
+            {
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+static OUString getTextLabelString(
+    const FixedNumberFormatter& rFixedNumberFormatter, const uno::Sequence<OUString>* pCategories,
+    const TickInfo* pTickInfo, bool bComplexCat, Color& rExtraColor, bool& rHasExtraColor )
+{
+    if (pCategories)
+    {
+        // This is a normal category axis.  Get the label string from the
+        // label string array.
+        sal_Int32 nIndex = static_cast<sal_Int32>(pTickInfo->getUnscaledTickValue()) - 1; //first category (index 0) matches with real number 1.0
+        if( nIndex>=0 && nIndex<pCategories->getLength() )
+            return (*pCategories)[nIndex];
+
+        return OUString();
+    }
+    else if (bComplexCat)
+    {
+        // This is a complex category axis.  The label is stored in the tick.
+        return pTickInfo->aText;
+    }
+
+    // This is a numeric axis.  Format the original tick value per number format.
+    return rFixedNumberFormatter.getFormattedString(pTickInfo->getUnscaledTickValue(), rExtraColor, rHasExtraColor);
+}
+
+static void getAxisLabelProperties(
+    tNameSequence& rPropNames, tAnySequence& rPropValues, const AxisProperties& rAxisProp,
+    const AxisLabelProperties& rAxisLabelProp,
+    sal_Int32 nLimitedSpaceForText, bool bLimitedHeight )
+{
+    Reference<beans::XPropertySet> xProps(rAxisProp.m_xAxisModel);
+
+    PropertyMapper::getTextLabelMultiPropertyLists(
+        xProps, rPropNames, rPropValues, false, nLimitedSpaceForText, bLimitedHeight, false);
+
+    LabelPositionHelper::doDynamicFontResize(
+        rPropValues, rPropNames, xProps, rAxisLabelProp.m_aFontReferenceSize);
+
+    LabelPositionHelper::changeTextAdjustment(
+        rPropValues, rPropNames, rAxisProp.maLabelAlignment.meAlignment);
+}
+
+namespace {
+
+/**
+ * Iterate through only 3 ticks including the one that has the longest text
+ * length.  When the first tick has the longest text, it iterates through
+ * the first 3 ticks.  Otherwise it iterates through 3 ticks such that the
+ * 2nd tick is the one with the longest text.
+ */
+class MaxLabelTickIter : public TickIter
+{
+public:
+    MaxLabelTickIter( TickInfoArrayType& rTickInfoVector, size_t nLongestLabelIndex );
+
+    virtual TickInfo* firstInfo() override;
+    virtual TickInfo* nextInfo() override;
+
+private:
+    TickInfoArrayType& m_rTickInfoVector;
+    std::vector<size_t> m_aValidIndices;
+    size_t m_nCurrentIndex;
+};
+
+}
+
+MaxLabelTickIter::MaxLabelTickIter(
+    TickInfoArrayType& rTickInfoVector, size_t nLongestLabelIndex ) :
+    m_rTickInfoVector(rTickInfoVector), m_nCurrentIndex(0)
+{
+    assert(!rTickInfoVector.empty()); // should be checked by the caller.
+    assert(nLongestLabelIndex < rTickInfoVector.size());
+
+    size_t nMaxIndex = m_rTickInfoVector.size()-1;
+    if (nLongestLabelIndex >= nMaxIndex-1)
+        nLongestLabelIndex = 0;
+
+    if (nLongestLabelIndex > 0)
+        m_aValidIndices.push_back(nLongestLabelIndex-1);
+
+    m_aValidIndices.push_back(nLongestLabelIndex);
+
+    while (m_aValidIndices.size() < 3)
+    {
+        ++nLongestLabelIndex;
+        if (nLongestLabelIndex > nMaxIndex)
+            break;
+
+        m_aValidIndices.push_back(nLongestLabelIndex);
+    }
+}
+
+TickInfo* MaxLabelTickIter::firstInfo()
+{
+    m_nCurrentIndex = 0;
+    if (m_nCurrentIndex < m_aValidIndices.size())
+        return &m_rTickInfoVector[m_aValidIndices[m_nCurrentIndex]];
+    return nullptr;
+}
+
+TickInfo* MaxLabelTickIter::nextInfo()
+{
+    m_nCurrentIndex++;
+    if (m_nCurrentIndex < m_aValidIndices.size())
+        return &m_rTickInfoVector[m_aValidIndices[m_nCurrentIndex]];
+    return nullptr;
+}
+
+bool VCartesianAxis::isBreakOfLabelsAllowed(
+    const AxisLabelProperties& rAxisLabelProperties, bool bIsHorizontalAxis, bool bIsVerticalAxis) const
+{
+    if( m_aTextLabels.getLength() > 100 )
+        return false;
+    if( !rAxisLabelProperties.m_bLineBreakAllowed )
+        return false;
+    if( rAxisLabelProperties.m_bStackCharacters )
+        return false;
+    //no break for value axis
+    if( !m_bUseTextLabels )
+        return false;
+    if( !( rAxisLabelProperties.m_fRotationAngleDegree == 0.0 ||
+           rAxisLabelProperties.m_fRotationAngleDegree == 90.0 ||
+           rAxisLabelProperties.m_fRotationAngleDegree == 270.0 ) )
+        return false;
+    //no break for complex vertical category axis
+    if( !m_aAxisProperties.m_bSwapXAndY )
+        return bIsHorizontalAxis;
+    else if( m_aAxisProperties.m_bSwapXAndY && !m_aAxisProperties.m_bComplexCategories )
+        return bIsVerticalAxis;
+    else
+        return false;
+}
+namespace{
+
+bool canAutoAdjustLabelPlacement(
+    const AxisLabelProperties& rAxisLabelProperties, bool bIsHorizontalAxis, bool bIsVerticalAxis)
+{
+    // joined prerequisite checks for auto rotate and auto stagger
+    if( rAxisLabelProperties.m_bOverlapAllowed )
+        return false;
+    if( rAxisLabelProperties.m_bLineBreakAllowed ) // auto line break may conflict with...
+        return false;
+    if( rAxisLabelProperties.m_fRotationAngleDegree != 0.0 )
+        return false;
+    // automatic adjusting labels only works for
+    // horizontal axis with horizontal text
+    // or vertical axis with vertical text
+    if( bIsHorizontalAxis )
+        return !rAxisLabelProperties.m_bStackCharacters;
+    if( bIsVerticalAxis )
+        return rAxisLabelProperties.m_bStackCharacters;
+    return false;
+}
+
+bool isAutoStaggeringOfLabelsAllowed(
+    const AxisLabelProperties& rAxisLabelProperties, bool bIsHorizontalAxis, bool bIsVerticalAxis )
+{
+    if( rAxisLabelProperties.m_eStaggering != AxisLabelStaggering::StaggerAuto )
+        return false;
+    return canAutoAdjustLabelPlacement(rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis);
+}
+
+// make clear that we check for auto rotation prerequisites
+const auto& isAutoRotatingOfLabelsAllowed = canAutoAdjustLabelPlacement;
+
+} // namespace
+void VCartesianAxis::createAllTickInfosFromComplexCategories( TickInfoArraysType& rAllTickInfos, bool bShiftedPosition )
+{
+    //no minor tickmarks will be generated!
+    //order is: inner labels first , outer labels last (that is different to all other TickIter cases)
+    if(!bShiftedPosition)
+    {
+        rAllTickInfos.clear();
+        sal_Int32 nLevel=0;
+        sal_Int32 nLevelCount = m_aAxisProperties.m_pExplicitCategoriesProvider->getCategoryLevelCount();
+        for( ; nLevel<nLevelCount; nLevel++ )
+        {
+            TickInfoArrayType aTickInfoVector;
+            const std::vector<ComplexCategory>* pComplexCategories =
+                m_aAxisProperties.m_pExplicitCategoriesProvider->getCategoriesByLevel(nLevel);
+
+            if (!pComplexCategories)
+                continue;
+
+            sal_Int32 nCatIndex = 0;
+
+            for (auto const& complexCategory : *pComplexCategories)
+            {
+                TickInfo aTickInfo(nullptr);
+                sal_Int32 nCount = complexCategory.Count;
+                if( nCatIndex + 1.0 + nCount >= m_aScale.Maximum )
+                {
+                    nCount = static_cast<sal_Int32>(m_aScale.Maximum - 1.0 - nCatIndex);
+                    if( nCount <= 0 )
+                        nCount = 1;
+                }
+                aTickInfo.fScaledTickValue = nCatIndex + 1.0 + nCount/2.0;
+                aTickInfo.nFactorForLimitedTextWidth = nCount;
+                aTickInfo.aText = complexCategory.Text;
+                aTickInfoVector.push_back(aTickInfo);
+                nCatIndex += nCount;
+                if( nCatIndex + 1.0 >= m_aScale.Maximum )
+                    break;
+            }
+            rAllTickInfos.push_back(aTickInfoVector);
+        }
+    }
+    else //bShiftedPosition==false
+    {
+        rAllTickInfos.clear();
+        sal_Int32 nLevel=0;
+        sal_Int32 nLevelCount = m_aAxisProperties.m_pExplicitCategoriesProvider->getCategoryLevelCount();
+        for( ; nLevel<nLevelCount; nLevel++ )
+        {
+            TickInfoArrayType aTickInfoVector;
+            const std::vector<ComplexCategory>* pComplexCategories =
+                m_aAxisProperties.m_pExplicitCategoriesProvider->getCategoriesByLevel(nLevel);
+            sal_Int32 nCatIndex = 0;
+            if (pComplexCategories)
+            {
+                for (auto const& complexCategory : *pComplexCategories)
+                {
+                    TickInfo aTickInfo(nullptr);
+                    aTickInfo.fScaledTickValue = nCatIndex + 1.0;
+                    aTickInfoVector.push_back(aTickInfo);
+                    nCatIndex += complexCategory.Count;
+                    if( nCatIndex + 1.0 > m_aScale.Maximum )
+                        break;
+                }
+            }
+
+            //fill up with single ticks until maximum scale
+            while( nCatIndex + 1.0 < m_aScale.Maximum )
+            {
+                TickInfo aTickInfo(nullptr);
+                aTickInfo.fScaledTickValue = nCatIndex + 1.0;
+                aTickInfoVector.push_back(aTickInfo);
+                nCatIndex ++;
+                if( nLevel>0 )
+                    break;
+            }
+            //add an additional tick at the end
+            {
+                TickInfo aTickInfo(nullptr);
+                aTickInfo.fScaledTickValue = m_aScale.Maximum;
+                aTickInfoVector.push_back(aTickInfo);
+            }
+            rAllTickInfos.push_back(aTickInfoVector);
+        }
+    }
+}
+
+void VCartesianAxis::createAllTickInfos( TickInfoArraysType& rAllTickInfos )
+{
+    if( isComplexCategoryAxis() )
+        createAllTickInfosFromComplexCategories( rAllTickInfos, false );
+    else
+        VAxisBase::createAllTickInfos(rAllTickInfos);
+}
+
+TickIter* VCartesianAxis::createLabelTickIterator( sal_Int32 nTextLevel )
+{
+    if( nTextLevel>=0 && o3tl::make_unsigned(nTextLevel) < m_aAllTickInfos.size() )
+        return new PureTickIter( m_aAllTickInfos[nTextLevel] );
+    return nullptr;
+}
+
+TickIter* VCartesianAxis::createMaximumLabelTickIterator( sal_Int32 nTextLevel )
+{
+    if( isComplexCategoryAxis() || isDateAxis() )
+    {
+        return createLabelTickIterator( nTextLevel ); //mmmm maybe todo: create less than all texts here
+    }
+    else
+    {
+        if(nTextLevel==0)
+        {
+            if( !m_aAllTickInfos.empty() )
+            {
+                size_t nLongestLabelIndex = m_bUseTextLabels ? getIndexOfLongestLabel(m_aTextLabels) : 0;
+                if (nLongestLabelIndex >= m_aAllTickInfos[0].size())
+                    return nullptr;
+
+                return new MaxLabelTickIter( m_aAllTickInfos[0], nLongestLabelIndex );
+            }
+        }
+    }
+    return nullptr;
+}
+
+sal_Int32 VCartesianAxis::getTextLevelCount() const
+{
+    sal_Int32 nTextLevelCount = 1;
+    if( isComplexCategoryAxis() )
+        nTextLevelCount = m_aAxisProperties.m_pExplicitCategoriesProvider->getCategoryLevelCount();
+    return nTextLevelCount;
+}
+
+bool VCartesianAxis::createTextShapes(
+    const rtl::Reference< SvxShapeGroupAnyD >& xTarget, TickIter& rTickIter,
+    AxisLabelProperties& rAxisLabelProperties, TickFactory2D const * pTickFactory,
+    sal_Int32 nScreenDistanceBetweenTicks )
+{
+    const bool bIsHorizontalAxis = pTickFactory->isHorizontalAxis();
+    const bool bIsVerticalAxis = pTickFactory->isVerticalAxis();
+
+    if( m_bUseTextLabels && (m_aAxisProperties.m_eLabelPos == css::chart::ChartAxisLabelPosition_NEAR_AXIS ||
+        m_aAxisProperties.m_eLabelPos == css::chart::ChartAxisLabelPosition_OUTSIDE_START))
+    {
+        if (bIsHorizontalAxis)
+        {
+            rAxisLabelProperties.m_aMaximumSpaceForLabels.Y = pTickFactory->getXaxisStartPos().getY();
+            rAxisLabelProperties.m_aMaximumSpaceForLabels.Height = rAxisLabelProperties.m_aFontReferenceSize.Height - rAxisLabelProperties.m_aMaximumSpaceForLabels.Y;
+        }
+        else if (bIsVerticalAxis)
+        {
+            rAxisLabelProperties.m_aMaximumSpaceForLabels.X = 0;
+            rAxisLabelProperties.m_aMaximumSpaceForLabels.Width = pTickFactory->getXaxisStartPos().getX();
+        }
+    }
+
+    bool bIsBreakOfLabelsAllowed = isBreakOfLabelsAllowed( rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis );
+    if (!bIsBreakOfLabelsAllowed &&
+        !isAutoStaggeringOfLabelsAllowed(rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis) &&
+        !rAxisLabelProperties.isStaggered())
+    {
+        return createTextShapesSimple(xTarget, rTickIter, rAxisLabelProperties, pTickFactory);
+    }
+
+    FixedNumberFormatter aFixedNumberFormatter(
+                m_xNumberFormatsSupplier, rAxisLabelProperties.m_nNumberFormatKey );
+
+    bool bIsStaggered = rAxisLabelProperties.isStaggered();
+    B2DVector aTextToTickDistance = pTickFactory->getDistanceAxisTickToText(m_aAxisProperties, true);
+    sal_Int32 nLimitedSpaceForText = -1;
+
+    if (bIsBreakOfLabelsAllowed)
+    {
+        if (!m_aAxisProperties.m_bLimitSpaceForLabels)
+        {
+            basegfx::B2DVector nDeltaVector = pTickFactory->getXaxisEndPos() - pTickFactory->getXaxisStartPos();
+            nLimitedSpaceForText = nDeltaVector.getX();
+        }
+        if (nScreenDistanceBetweenTicks > 0)
+            nLimitedSpaceForText = nScreenDistanceBetweenTicks;
+
+        if( bIsStaggered )
+            nLimitedSpaceForText *= 2;
+
+        if( nLimitedSpaceForText > 0 )
+        { //reduce space for a small amount to have a visible distance between the labels:
+            sal_Int32 nReduce = (nLimitedSpaceForText*5)/100;
+            if(!nReduce)
+                nReduce = 1;
+            nLimitedSpaceForText -= nReduce;
+        }
+
+        // recalculate the nLimitedSpaceForText in case of 90 and 270 degree if the text break is true
+        if ( rAxisLabelProperties.m_fRotationAngleDegree == 90.0 || rAxisLabelProperties.m_fRotationAngleDegree == 270.0 )
+        {
+            nLimitedSpaceForText = rAxisLabelProperties.m_aMaximumSpaceForLabels.Height;
+            m_aAxisProperties.m_bLimitSpaceForLabels = false;
+        }
+
+        // recalculate the nLimitedSpaceForText in case of vertical category axis if the text break is true
+        if ( m_aAxisProperties.m_bSwapXAndY && bIsVerticalAxis && rAxisLabelProperties.m_fRotationAngleDegree == 0.0 )
+        {
+            nLimitedSpaceForText = pTickFactory->getXaxisStartPos().getX();
+            m_aAxisProperties.m_bLimitSpaceForLabels = false;
+        }
+    }
+
+    // Stores an array of text label strings in case of a normal
+    // (non-complex) category axis.
+    const uno::Sequence<OUString>* pCategories = nullptr;
+    if( m_bUseTextLabels && !m_aAxisProperties.m_bComplexCategories )
+        pCategories = &m_aTextLabels;
+
+    bool bLimitedHeight;
+    if( !m_aAxisProperties.m_bSwapXAndY )
+        bLimitedHeight = fabs(aTextToTickDistance.getX()) > fabs(aTextToTickDistance.getY());
+    else
+        bLimitedHeight = fabs(aTextToTickDistance.getX()) < fabs(aTextToTickDistance.getY());
+    //prepare properties for multipropertyset-interface of shape
+    tNameSequence aPropNames;
+    tAnySequence aPropValues;
+    getAxisLabelProperties(aPropNames, aPropValues, m_aAxisProperties, rAxisLabelProperties, nLimitedSpaceForText, bLimitedHeight);
+
+    uno::Any* pColorAny = PropertyMapper::getValuePointer(aPropValues,aPropNames,u"CharColor");
+    Color nColor = COL_AUTO;
+    if(pColorAny)
+        *pColorAny >>= nColor;
+
+    uno::Any* pLimitedSpaceAny = PropertyMapper::getValuePointerForLimitedSpace(aPropValues,aPropNames,bLimitedHeight);
+
+    const TickInfo* pPreviousVisibleTickInfo = nullptr;
+    const TickInfo* pPREPreviousVisibleTickInfo = nullptr;
+    sal_Int32 nTick = 0;
+    for( TickInfo* pTickInfo = rTickIter.firstInfo()
+        ; pTickInfo
+        ; pTickInfo = rTickIter.nextInfo(), nTick++ )
+    {
+        const TickInfo* pLastVisibleNeighbourTickInfo = bIsStaggered ?
+                    pPREPreviousVisibleTickInfo : pPreviousVisibleTickInfo;
+
+        //don't create labels which does not fit into the rhythm
+        if( nTick%rAxisLabelProperties.m_nRhythm != 0 )
+            continue;
+
+        //don't create labels for invisible ticks
+        if( !pTickInfo->bPaintIt )
+            continue;
+
+        if( pLastVisibleNeighbourTickInfo && !rAxisLabelProperties.m_bOverlapAllowed )
+        {
+            // Overlapping is not allowed.  If the label overlaps with its
+            // neighboring label, try increasing the tick interval (or rhythm
+            // as it's called) and start over.
+
+            if( lcl_doesShapeOverlapWithTickmark( *pLastVisibleNeighbourTickInfo->xTextShape
+                       , rAxisLabelProperties.m_fRotationAngleDegree
+                       , pTickInfo->aTickScreenPosition ) )
+            {
+                // This tick overlaps with its neighbor.  Try to stagger (if
+                // auto staggering is allowed) to avoid overlapping.
+
+                bool bOverlapsAfterAutoStagger = true;
+                if( !bIsStaggered && isAutoStaggeringOfLabelsAllowed( rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis ) )
+                {
+                    bIsStaggered = true;
+                    rAxisLabelProperties.m_eStaggering = AxisLabelStaggering::StaggerEven;
+                    pLastVisibleNeighbourTickInfo = pPREPreviousVisibleTickInfo;
+                    if( !pLastVisibleNeighbourTickInfo ||
+                        !lcl_doesShapeOverlapWithTickmark( *pLastVisibleNeighbourTickInfo->xTextShape
+                                , rAxisLabelProperties.m_fRotationAngleDegree
+                                , pTickInfo->aTickScreenPosition ) )
+                        bOverlapsAfterAutoStagger = false;
+                }
+
+                if (bOverlapsAfterAutoStagger)
+                {
+                    // Still overlaps with its neighbor even after staggering.
+                    // Increment the visible tick intervals (if that's
+                    // allowed) and start over.
+
+                    rAxisLabelProperties.m_nRhythm++;
+                    removeShapesAtWrongRhythm( rTickIter, rAxisLabelProperties.m_nRhythm, nTick, xTarget );
+                    return false;
+                }
+            }
+        }
+
+        bool bHasExtraColor=false;
+        Color nExtraColor;
+
+        OUString aLabel = getTextLabelString(
+            aFixedNumberFormatter, pCategories, pTickInfo, isComplexCategoryAxis(),
+            nExtraColor, bHasExtraColor);
+
+        if(pColorAny)
+            *pColorAny <<= bHasExtraColor?nExtraColor:nColor;
+        if(pLimitedSpaceAny)
+            *pLimitedSpaceAny <<= sal_Int32(nLimitedSpaceForText*pTickInfo->nFactorForLimitedTextWidth);
+
+        B2DVector aTickScreenPos2D = pTickInfo->aTickScreenPosition;
+        aTickScreenPos2D += aTextToTickDistance;
+        awt::Point aAnchorScreenPosition2D(
+            static_cast<sal_Int32>(aTickScreenPos2D.getX())
+            ,static_cast<sal_Int32>(aTickScreenPos2D.getY()));
+
+        //create single label
+        if(!pTickInfo->xTextShape.is())
+        {
+            pTickInfo->xTextShape = createSingleLabel( xTarget
+                                    , aAnchorScreenPosition2D, aLabel
+                                    , rAxisLabelProperties, m_aAxisProperties
+                                    , aPropNames, aPropValues, bIsHorizontalAxis );
+        }
+        if(!pTickInfo->xTextShape.is())
+            continue;
+
+        recordMaximumTextSize( *pTickInfo->xTextShape, rAxisLabelProperties.m_fRotationAngleDegree );
+
+        // Label has multiple lines and the words are broken
+        if (nLimitedSpaceForText > 0
+                && !rAxisLabelProperties.m_bOverlapAllowed
+                && rAxisLabelProperties.m_fRotationAngleDegree == 0.0
+                && nTick > 0
+                && lcl_hasWordBreak(pTickInfo->xTextShape))
+        {
+            // Label has multiple lines and belongs to a complex category
+            // axis. Rotate 90 degrees to try to avoid overlaps.
+            if ( m_aAxisProperties.m_bComplexCategories )
+            {
+                rAxisLabelProperties.m_fRotationAngleDegree = 90;
+            }
+            rAxisLabelProperties.m_bLineBreakAllowed = false;
+            m_aAxisLabelProperties.m_fRotationAngleDegree = rAxisLabelProperties.m_fRotationAngleDegree;
+            removeTextShapesFromTicks();
+            return false;
+        }
+
+        //if NO OVERLAP -> remove overlapping shapes
+        if( pLastVisibleNeighbourTickInfo && !rAxisLabelProperties.m_bOverlapAllowed )
+        {
+            // Check if the label still overlaps with its neighbor.
+            if( doesOverlap( pLastVisibleNeighbourTickInfo->xTextShape, pTickInfo->xTextShape, rAxisLabelProperties.m_fRotationAngleDegree ) )
+            {
+                // It overlaps.  Check if staggering helps.
+                bool bOverlapsAfterAutoStagger = true;
+                if( !bIsStaggered && isAutoStaggeringOfLabelsAllowed( rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis ) )
+                {
+                    // Compatibility option: starting from LibreOffice 5.1 the rotated
+                    // layout is preferred to staggering for axis labels.
+                    if( !isAutoRotatingOfLabelsAllowed(rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis)
+                        || m_aAxisProperties.m_bTryStaggeringFirst )
+                    {
+                        bIsStaggered = true;
+                        rAxisLabelProperties.m_eStaggering = AxisLabelStaggering::StaggerEven;
+                        pLastVisibleNeighbourTickInfo = pPREPreviousVisibleTickInfo;
+                        if( !pLastVisibleNeighbourTickInfo ||
+                            !lcl_doesShapeOverlapWithTickmark( *pLastVisibleNeighbourTickInfo->xTextShape
+                                , rAxisLabelProperties.m_fRotationAngleDegree
+                                , pTickInfo->aTickScreenPosition ) )
+                            bOverlapsAfterAutoStagger = false;
+                    }
+                }
+
+                if (bOverlapsAfterAutoStagger)
+                {
+                    // Staggering didn't solve the overlap.
+                    if( isAutoRotatingOfLabelsAllowed(rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis) )
+                    {
+                        // Try auto-rotating the labels at 45 degrees and
+                        // start over.  This rotation angle will be stored for
+                        // all future text shape creation runs.
+                        // The nRhythm parameter is reset to 1 since the layout
+                        // used for text labels is changed.
+                        rAxisLabelProperties.autoRotate45();
+                        m_aAxisLabelProperties.m_fRotationAngleDegree = rAxisLabelProperties.m_fRotationAngleDegree; // Store it for future runs.
+                        removeTextShapesFromTicks();
+                        rAxisLabelProperties.m_nRhythm = 1;
+                        return false;
+                    }
+
+                    // Try incrementing the tick interval and start over.
+                    rAxisLabelProperties.m_nRhythm++;
+                    removeShapesAtWrongRhythm( rTickIter, rAxisLabelProperties.m_nRhythm, nTick, xTarget );
+                    return false;
+                }
+            }
+        }
+
+        pPREPreviousVisibleTickInfo = pPreviousVisibleTickInfo;
+        pPreviousVisibleTickInfo = pTickInfo;
+    }
+    return true;
+}
+
+bool VCartesianAxis::createTextShapesSimple(
+    const rtl::Reference< SvxShapeGroupAnyD >& xTarget, TickIter& rTickIter,
+    AxisLabelProperties& rAxisLabelProperties, TickFactory2D const * pTickFactory )
+{
+    FixedNumberFormatter aFixedNumberFormatter(
+                m_xNumberFormatsSupplier, rAxisLabelProperties.m_nNumberFormatKey );
+
+    const bool bIsHorizontalAxis = pTickFactory->isHorizontalAxis();
+    const bool bIsVerticalAxis = pTickFactory->isVerticalAxis();
+    B2DVector aTextToTickDistance = pTickFactory->getDistanceAxisTickToText(m_aAxisProperties, true);
+
+     // Stores an array of text label strings in case of a normal
+     // (non-complex) category axis.
+    const uno::Sequence<OUString>* pCategories = nullptr;
+    if( m_bUseTextLabels && !m_aAxisProperties.m_bComplexCategories )
+        pCategories = &m_aTextLabels;
+
+    bool bLimitedHeight = fabs(aTextToTickDistance.getX()) > fabs(aTextToTickDistance.getY());
+
+    //prepare properties for multipropertyset-interface of shape
+    tNameSequence aPropNames;
+    tAnySequence aPropValues;
+    getAxisLabelProperties(aPropNames, aPropValues, m_aAxisProperties, rAxisLabelProperties, -1, bLimitedHeight);
+
+    uno::Any* pColorAny = PropertyMapper::getValuePointer(aPropValues,aPropNames,u"CharColor");
+    Color nColor = COL_AUTO;
+    if(pColorAny)
+        *pColorAny >>= nColor;
+
+    uno::Any* pLimitedSpaceAny = PropertyMapper::getValuePointerForLimitedSpace(aPropValues,aPropNames,bLimitedHeight);
+
+    const TickInfo* pPreviousVisibleTickInfo = nullptr;
+    sal_Int32 nTick = 0;
+    for( TickInfo* pTickInfo = rTickIter.firstInfo()
+        ; pTickInfo
+        ; pTickInfo = rTickIter.nextInfo(), nTick++ )
+    {
+        const TickInfo* pLastVisibleNeighbourTickInfo = pPreviousVisibleTickInfo;
+
+        //don't create labels which does not fit into the rhythm
+        if( nTick%rAxisLabelProperties.m_nRhythm != 0 )
+            continue;
+
+        //don't create labels for invisible ticks
+        if( !pTickInfo->bPaintIt )
+            continue;
+
+        if( pLastVisibleNeighbourTickInfo && !rAxisLabelProperties.m_bOverlapAllowed )
+        {
+            // Overlapping is not allowed.  If the label overlaps with its
+            // neighboring label, try increasing the tick interval (or rhythm
+            // as it's called) and start over.
+
+            if( lcl_doesShapeOverlapWithTickmark( *pLastVisibleNeighbourTickInfo->xTextShape
+                       , rAxisLabelProperties.m_fRotationAngleDegree
+                       , pTickInfo->aTickScreenPosition ) )
+            {
+                // This tick overlaps with its neighbor. Increment the visible
+                // tick intervals (if that's allowed) and start over.
+
+                rAxisLabelProperties.m_nRhythm++;
+                removeShapesAtWrongRhythm( rTickIter, rAxisLabelProperties.m_nRhythm, nTick, xTarget );
+                return false;
+            }
+        }
+
+        bool bHasExtraColor=false;
+        Color nExtraColor;
+
+        OUString aLabel = getTextLabelString(
+            aFixedNumberFormatter, pCategories, pTickInfo, isComplexCategoryAxis(),
+            nExtraColor, bHasExtraColor);
+
+        if(pColorAny)
+            *pColorAny <<= bHasExtraColor?nExtraColor:nColor;
+        if(pLimitedSpaceAny)
+            *pLimitedSpaceAny <<= sal_Int32(-1*pTickInfo->nFactorForLimitedTextWidth);
+
+        B2DVector aTickScreenPos2D = pTickInfo->aTickScreenPosition;
+        aTickScreenPos2D += aTextToTickDistance;
+        awt::Point aAnchorScreenPosition2D(
+            static_cast<sal_Int32>(aTickScreenPos2D.getX())
+            ,static_cast<sal_Int32>(aTickScreenPos2D.getY()));
+
+        //create single label
+        if(!pTickInfo->xTextShape.is())
+            pTickInfo->xTextShape = createSingleLabel( xTarget
+                                    , aAnchorScreenPosition2D, aLabel
+                                    , rAxisLabelProperties, m_aAxisProperties
+                                    , aPropNames, aPropValues, bIsHorizontalAxis );
+        if(!pTickInfo->xTextShape.is())
+            continue;
+
+        recordMaximumTextSize( *pTickInfo->xTextShape, rAxisLabelProperties.m_fRotationAngleDegree );
+
+        //if NO OVERLAP -> remove overlapping shapes
+        if( pLastVisibleNeighbourTickInfo && !rAxisLabelProperties.m_bOverlapAllowed )
+        {
+            // Check if the label still overlaps with its neighbor.
+            if( doesOverlap( pLastVisibleNeighbourTickInfo->xTextShape, pTickInfo->xTextShape, rAxisLabelProperties.m_fRotationAngleDegree ) )
+            {
+                // It overlaps.
+                if( isAutoRotatingOfLabelsAllowed(rAxisLabelProperties, bIsHorizontalAxis, bIsVerticalAxis) )
+                {
+                    // Try auto-rotating the labels at 45 degrees and
+                    // start over.  This rotation angle will be stored for
+                    // all future text shape creation runs.
+                    // The nRhythm parameter is reset to 1 since the layout
+                    // used for text labels is changed.
+                    rAxisLabelProperties.autoRotate45();
+                    m_aAxisLabelProperties.m_fRotationAngleDegree = rAxisLabelProperties.m_fRotationAngleDegree; // Store it for future runs.
+                    removeTextShapesFromTicks();
+                    rAxisLabelProperties.m_nRhythm = 1;
+                    return false;
+                }
+
+                // Try incrementing the tick interval and start over.
+                rAxisLabelProperties.m_nRhythm++;
+                removeShapesAtWrongRhythm( rTickIter, rAxisLabelProperties.m_nRhythm, nTick, xTarget );
+                return false;
+            }
+        }
+
+        pPreviousVisibleTickInfo = pTickInfo;
+    }
+    return true;
+}
+
+double VCartesianAxis::getAxisIntersectionValue() const
+{
+    if (m_aAxisProperties.m_pfMainLinePositionAtOtherAxis)
+        return *m_aAxisProperties.m_pfMainLinePositionAtOtherAxis;
+
+    double fMin = (m_nDimensionIndex==1) ? m_pPosHelper->getLogicMinX() : m_pPosHelper->getLogicMinY();
+    double fMax = (m_nDimensionIndex==1) ? m_pPosHelper->getLogicMaxX() : m_pPosHelper->getLogicMaxY();
+
+    return (m_aAxisProperties.m_eCrossoverType == css::chart::ChartAxisPosition_END) ? fMax : fMin;
+}
+
+double VCartesianAxis::getLabelLineIntersectionValue() const
+{
+    if (m_aAxisProperties.m_eLabelPos == css::chart::ChartAxisLabelPosition_OUTSIDE_START)
+        return (m_nDimensionIndex==1) ? m_pPosHelper->getLogicMinX() : m_pPosHelper->getLogicMinY();
+
+    if (m_aAxisProperties.m_eLabelPos == css::chart::ChartAxisLabelPosition_OUTSIDE_END)
+        return (m_nDimensionIndex==1) ? m_pPosHelper->getLogicMaxX() : m_pPosHelper->getLogicMaxY();
+
+    return getAxisIntersectionValue();
+}
+
+double VCartesianAxis::getExtraLineIntersectionValue() const
+{
+    if( !m_aAxisProperties.m_pfExrtaLinePositionAtOtherAxis )
+        return std::numeric_limits<double>::quiet_NaN();
+
+    double fMin = (m_nDimensionIndex==1) ? m_pPosHelper->getLogicMinX() : m_pPosHelper->getLogicMinY();
+    double fMax = (m_nDimensionIndex==1) ? m_pPosHelper->getLogicMaxX() : m_pPosHelper->getLogicMaxY();
+
+    if( *m_aAxisProperties.m_pfExrtaLinePositionAtOtherAxis <= fMin
+        || *m_aAxisProperties.m_pfExrtaLinePositionAtOtherAxis >= fMax )
+        return std::numeric_limits<double>::quiet_NaN();
+
+    return *m_aAxisProperties.m_pfExrtaLinePositionAtOtherAxis;
+}
+
+B2DVector VCartesianAxis::getScreenPosition( double fLogicX, double fLogicY, double fLogicZ ) const
+{
+    B2DVector aRet(0,0);
+
+    if( m_pPosHelper )
+    {
+        drawing::Position3D aScenePos = m_pPosHelper->transformLogicToScene( fLogicX, fLogicY, fLogicZ, true );
+        if(m_nDimension==3)
+        {
+            if (m_xLogicTarget.is())
+            {
+                tPropertyNameMap aDummyPropertyNameMap;
+                rtl::Reference<Svx3DExtrudeObject> xShape3DAnchor = ShapeFactory::createCube( m_xLogicTarget
+                        , aScenePos,drawing::Direction3D(1,1,1), 0, nullptr, aDummyPropertyNameMap);
+                awt::Point a2DPos = xShape3DAnchor->getPosition(); //get 2D position from xShape3DAnchor
+                m_xLogicTarget->remove(xShape3DAnchor);
+                aRet.setX( a2DPos.X );
+                aRet.setY( a2DPos.Y );
+            }
+            else
+            {
+                OSL_FAIL("cannot calculate screen position in VCartesianAxis::getScreenPosition");
+            }
+        }
+        else
+        {
+            aRet.setX( aScenePos.PositionX );
+            aRet.setY( aScenePos.PositionY );
+        }
+    }
+
+    return aRet;
+}
+
+VCartesianAxis::ScreenPosAndLogicPos VCartesianAxis::getScreenPosAndLogicPos( double fLogicX_, double fLogicY_, double fLogicZ_ ) const
+{
+    ScreenPosAndLogicPos aRet;
+    aRet.fLogicX = fLogicX_;
+    aRet.fLogicY = fLogicY_;
+    aRet.fLogicZ = fLogicZ_;
+    aRet.aScreenPos = getScreenPosition( fLogicX_, fLogicY_, fLogicZ_ );
+    return aRet;
+}
+
+typedef std::vector< VCartesianAxis::ScreenPosAndLogicPos > tScreenPosAndLogicPosList;
+
+namespace {
+
+struct lcl_LessXPos
+{
+    bool operator() ( const VCartesianAxis::ScreenPosAndLogicPos& rPos1, const VCartesianAxis::ScreenPosAndLogicPos& rPos2 )
+    {
+        return ( rPos1.aScreenPos.getX() < rPos2.aScreenPos.getX() );
+    }
+};
+
+struct lcl_GreaterYPos
+{
+    bool operator() ( const VCartesianAxis::ScreenPosAndLogicPos& rPos1, const VCartesianAxis::ScreenPosAndLogicPos& rPos2 )
+    {
+        return ( rPos1.aScreenPos.getY() > rPos2.aScreenPos.getY() );
+    }
+};
+
+}
+
+void VCartesianAxis::get2DAxisMainLine(
+    B2DVector& rStart, B2DVector& rEnd, AxisLabelAlignment& rAlignment, double fCrossesOtherAxis ) const
+{
+    //m_aAxisProperties might get updated and changed here because
+    //    the label alignment and inner direction sign depends exactly of the choice of the axis line position which is made here in this method
+
+    double const fMinX = m_pPosHelper->getLogicMinX();
+    double const fMinY = m_pPosHelper->getLogicMinY();
+    double const fMinZ = m_pPosHelper->getLogicMinZ();
+    double const fMaxX = m_pPosHelper->getLogicMaxX();
+    double const fMaxY = m_pPosHelper->getLogicMaxY();
+    double const fMaxZ = m_pPosHelper->getLogicMaxZ();
+
+    double fXOnXPlane = fMinX;
+    double fXOther = fMaxX;
+    int nDifferentValue = !m_pPosHelper->isMathematicalOrientationX() ? -1 : 1;
+    if( !m_pPosHelper->isSwapXAndY() )
+        nDifferentValue *= (m_eLeftWallPos != CuboidPlanePosition_Left) ? -1 : 1;
+    else
+        nDifferentValue *= (m_eBottomPos != CuboidPlanePosition_Bottom) ? -1 : 1;
+    if( nDifferentValue<0 )
+    {
+        fXOnXPlane = fMaxX;
+        fXOther = fMinX;
+    }
+
+    double fYOnYPlane = fMinY;
+    double fYOther = fMaxY;
+    nDifferentValue = !m_pPosHelper->isMathematicalOrientationY() ? -1 : 1;
+    if( !m_pPosHelper->isSwapXAndY() )
+        nDifferentValue *= (m_eBottomPos != CuboidPlanePosition_Bottom) ? -1 : 1;
+    else
+        nDifferentValue *= (m_eLeftWallPos != CuboidPlanePosition_Left) ? -1 : 1;
+    if( nDifferentValue<0 )
+    {
+        fYOnYPlane = fMaxY;
+        fYOther = fMinY;
+    }
+
+    double fZOnZPlane = fMaxZ;
+    double fZOther = fMinZ;
+    nDifferentValue = !m_pPosHelper->isMathematicalOrientationZ() ? -1 : 1;
+    nDifferentValue *= (m_eBackWallPos != CuboidPlanePosition_Back) ? -1 : 1;
+    if( nDifferentValue<0 )
+    {
+        fZOnZPlane = fMinZ;
+        fZOther = fMaxZ;
+    }
+
+    double fXStart = fMinX;
+    double fYStart = fMinY;
+    double fZStart = fMinZ;
+    double fXEnd;
+    double fYEnd;
+    double fZEnd = fZStart;
+
+    if( m_nDimensionIndex==0 ) //x-axis
+    {
+        if( fCrossesOtherAxis < fMinY )
+            fCrossesOtherAxis = fMinY;
+        else if( fCrossesOtherAxis > fMaxY )
+            fCrossesOtherAxis = fMaxY;
+
+        fYStart = fYEnd = fCrossesOtherAxis;
+        fXEnd=m_pPosHelper->getLogicMaxX();
+
+        if(m_nDimension==3)
+        {
+            if( AxisHelper::isAxisPositioningEnabled() )
+            {
+                if( ::rtl::math::approxEqual( fYOther, fYStart) )
+                    fZStart = fZEnd = fZOnZPlane;
+                else
+                    fZStart = fZEnd = fZOther;
+            }
+            else
+            {
+                rStart = getScreenPosition( fXStart, fYStart, fZStart );
+                rEnd = getScreenPosition( fXEnd, fYEnd, fZEnd );
+
+                double fDeltaX = rEnd.getX() - rStart.getX();
+                double fDeltaY = rEnd.getY() - rStart.getY();
+
+                //only those points are candidates which are lying on exactly one wall as these are outer edges
+                tScreenPosAndLogicPosList aPosList { getScreenPosAndLogicPos( fMinX, fYOnYPlane, fZOther ), getScreenPosAndLogicPos( fMinX, fYOther, fZOnZPlane ) };
+
+                if( fabs(fDeltaY) > fabs(fDeltaX)  )
+                {
+                    rAlignment.meAlignment = LABEL_ALIGN_LEFT;
+                    //choose most left positions
+                    std::sort( aPosList.begin(), aPosList.end(), lcl_LessXPos() );
+                    rAlignment.mfLabelDirection = (fDeltaY < 0) ? -1.0 : 1.0;
+                }
+                else
+                {
+                    rAlignment.meAlignment = LABEL_ALIGN_BOTTOM;
+                    //choose most bottom positions
+                    std::sort( aPosList.begin(), aPosList.end(), lcl_GreaterYPos() );
+                    rAlignment.mfLabelDirection = (fDeltaX < 0) ? -1.0 : 1.0;
+                }
+                ScreenPosAndLogicPos aBestPos( aPosList[0] );
+                fYStart = fYEnd = aBestPos.fLogicY;
+                fZStart = fZEnd = aBestPos.fLogicZ;
+                if( !m_pPosHelper->isMathematicalOrientationX() )
+                    rAlignment.mfLabelDirection *= -1.0;
+            }
+        }//end 3D x axis
+    }
+    else if( m_nDimensionIndex==1 ) //y-axis
+    {
+        if( fCrossesOtherAxis < fMinX )
+            fCrossesOtherAxis = fMinX;
+        else if( fCrossesOtherAxis > fMaxX )
+            fCrossesOtherAxis = fMaxX;
+
+        fXStart = fXEnd = fCrossesOtherAxis;
+        fYEnd=m_pPosHelper->getLogicMaxY();
+
+        if(m_nDimension==3)
+        {
+            if( AxisHelper::isAxisPositioningEnabled() )
+            {
+                if( ::rtl::math::approxEqual( fXOther, fXStart) )
+                    fZStart = fZEnd = fZOnZPlane;
+                else
+                    fZStart = fZEnd = fZOther;
+            }
+            else
+            {
+                rStart = getScreenPosition( fXStart, fYStart, fZStart );
+                rEnd = getScreenPosition( fXEnd, fYEnd, fZEnd );
+
+                double fDeltaX = rEnd.getX() - rStart.getX();
+                double fDeltaY = rEnd.getY() - rStart.getY();
+
+                //only those points are candidates which are lying on exactly one wall as these are outer edges
+                tScreenPosAndLogicPosList aPosList { getScreenPosAndLogicPos( fXOnXPlane, fMinY, fZOther ), getScreenPosAndLogicPos( fXOther, fMinY, fZOnZPlane ) };
+
+                if( fabs(fDeltaY) > fabs(fDeltaX)  )
+                {
+                    rAlignment.meAlignment = LABEL_ALIGN_LEFT;
+                    //choose most left positions
+                    std::sort( aPosList.begin(), aPosList.end(), lcl_LessXPos() );
+                    rAlignment.mfLabelDirection = (fDeltaY < 0) ? -1.0 : 1.0;
+                }
+                else
+                {
+                    rAlignment.meAlignment = LABEL_ALIGN_BOTTOM;
+                    //choose most bottom positions
+                    std::sort( aPosList.begin(), aPosList.end(), lcl_GreaterYPos() );
+                    rAlignment.mfLabelDirection = (fDeltaX < 0) ? -1.0 : 1.0;
+                }
+                ScreenPosAndLogicPos aBestPos( aPosList[0] );
+                fXStart = fXEnd = aBestPos.fLogicX;
+                fZStart = fZEnd = aBestPos.fLogicZ;
+                if( !m_pPosHelper->isMathematicalOrientationY() )
+                    rAlignment.mfLabelDirection *= -1.0;
+            }
+        }//end 3D y axis
+    }
+    else //z-axis
+    {
+        fZEnd = m_pPosHelper->getLogicMaxZ();
+        if( AxisHelper::isAxisPositioningEnabled() )
+        {
+            if( !m_aAxisProperties.m_bSwapXAndY )
+            {
+                if( fCrossesOtherAxis < fMinY )
+                    fCrossesOtherAxis = fMinY;
+                else if( fCrossesOtherAxis > fMaxY )
+                    fCrossesOtherAxis = fMaxY;
+                fYStart = fYEnd = fCrossesOtherAxis;
+
+                if( ::rtl::math::approxEqual( fYOther, fYStart) )
+                    fXStart = fXEnd = fXOnXPlane;
+                else
+                    fXStart = fXEnd = fXOther;
+            }
+            else
+            {
+                if( fCrossesOtherAxis < fMinX )
+                    fCrossesOtherAxis = fMinX;
+                else if( fCrossesOtherAxis > fMaxX )
+                    fCrossesOtherAxis = fMaxX;
+                fXStart = fXEnd = fCrossesOtherAxis;
+
+                if( ::rtl::math::approxEqual( fXOther, fXStart) )
+                    fYStart = fYEnd = fYOnYPlane;
+                else
+                    fYStart = fYEnd = fYOther;
+            }
+        }
+        else
+        {
+            if( !m_pPosHelper->isSwapXAndY() )
+            {
+                fXStart = fXEnd = m_pPosHelper->isMathematicalOrientationX() ? m_pPosHelper->getLogicMaxX() : m_pPosHelper->getLogicMinX();
+                fYStart = fYEnd = m_pPosHelper->isMathematicalOrientationY() ? m_pPosHelper->getLogicMinY() : m_pPosHelper->getLogicMaxY();
+            }
+            else
+            {
+                fXStart = fXEnd = m_pPosHelper->isMathematicalOrientationX() ? m_pPosHelper->getLogicMinX() : m_pPosHelper->getLogicMaxX();
+                fYStart = fYEnd = m_pPosHelper->isMathematicalOrientationY() ? m_pPosHelper->getLogicMaxY() : m_pPosHelper->getLogicMinY();
+            }
+
+            if(m_nDimension==3)
+            {
+                rStart = getScreenPosition( fXStart, fYStart, fZStart );
+                rEnd = getScreenPosition( fXEnd, fYEnd, fZEnd );
+
+                double fDeltaX = rEnd.getX() - rStart.getX();
+
+                //only those points are candidates which are lying on exactly one wall as these are outer edges
+                tScreenPosAndLogicPosList aPosList { getScreenPosAndLogicPos( fXOther, fYOnYPlane, fMinZ ), getScreenPosAndLogicPos( fXOnXPlane, fYOther, fMinZ ) };
+
+                std::sort( aPosList.begin(), aPosList.end(), lcl_GreaterYPos() );
+                ScreenPosAndLogicPos aBestPos( aPosList[0] );
+                ScreenPosAndLogicPos aNotSoGoodPos( aPosList[1] );
+
+                //choose most bottom positions
+                if( fDeltaX != 0.0 ) // prefer left-right alignments
+                {
+                    if( aBestPos.aScreenPos.getX() > aNotSoGoodPos.aScreenPos.getX() )
+                        rAlignment.meAlignment = LABEL_ALIGN_RIGHT;
+                    else
+                         rAlignment.meAlignment = LABEL_ALIGN_LEFT;
+                }
+                else
+                {
+                    if( aBestPos.aScreenPos.getY() > aNotSoGoodPos.aScreenPos.getY() )
+                        rAlignment.meAlignment = LABEL_ALIGN_BOTTOM;
+                    else
+                        rAlignment.meAlignment = LABEL_ALIGN_TOP;
+                }
+
+                rAlignment.mfLabelDirection = (fDeltaX < 0) ? -1.0 : 1.0;
+                if( !m_pPosHelper->isMathematicalOrientationZ() )
+                    rAlignment.mfLabelDirection *= -1.0;
+
+                fXStart = fXEnd = aBestPos.fLogicX;
+                fYStart = fYEnd = aBestPos.fLogicY;
+            }
+        }//end 3D z axis
+    }
+
+    rStart = getScreenPosition( fXStart, fYStart, fZStart );
+    rEnd = getScreenPosition( fXEnd, fYEnd, fZEnd );
+
+    if(m_nDimension==3 && !AxisHelper::isAxisPositioningEnabled() )
+        rAlignment.mfInnerTickDirection = rAlignment.mfLabelDirection;//to behave like before
+
+    if(!(m_nDimension==3 && AxisHelper::isAxisPositioningEnabled()) )
+        return;
+
+    double fDeltaX = rEnd.getX() - rStart.getX();
+    double fDeltaY = rEnd.getY() - rStart.getY();
+
+    if( m_nDimensionIndex==2 )
+    {
+        if( m_eLeftWallPos != CuboidPlanePosition_Left )
+        {
+            rAlignment.mfLabelDirection *= -1.0;
+            rAlignment.mfInnerTickDirection *= -1.0;
+        }
+
+        rAlignment.meAlignment =
+            (rAlignment.mfLabelDirection < 0) ?
+                LABEL_ALIGN_LEFT :  LABEL_ALIGN_RIGHT;
+
+        if( ( fDeltaY<0 && m_aScale.Orientation == chart2::AxisOrientation_REVERSE ) ||
+            ( fDeltaY>0 && m_aScale.Orientation == chart2::AxisOrientation_MATHEMATICAL ) )
+            rAlignment.meAlignment =
+                (rAlignment.meAlignment == LABEL_ALIGN_RIGHT) ?
+                    LABEL_ALIGN_LEFT : LABEL_ALIGN_RIGHT;
+    }
+    else if( fabs(fDeltaY) > fabs(fDeltaX) )
+    {
+        if( m_eBackWallPos != CuboidPlanePosition_Back )
+        {
+            rAlignment.mfLabelDirection *= -1.0;
+            rAlignment.mfInnerTickDirection *= -1.0;
+        }
+
+        rAlignment.meAlignment =
+            (rAlignment.mfLabelDirection < 0) ?
+                LABEL_ALIGN_LEFT : LABEL_ALIGN_RIGHT;
+
+        if( ( fDeltaY<0 && m_aScale.Orientation == chart2::AxisOrientation_REVERSE ) ||
+            ( fDeltaY>0 && m_aScale.Orientation == chart2::AxisOrientation_MATHEMATICAL ) )
+            rAlignment.meAlignment =
+                (rAlignment.meAlignment == LABEL_ALIGN_RIGHT) ?
+                    LABEL_ALIGN_LEFT :  LABEL_ALIGN_RIGHT;
+    }
+    else
+    {
+        if( m_eBackWallPos != CuboidPlanePosition_Back )
+        {
+            rAlignment.mfLabelDirection *= -1.0;
+            rAlignment.mfInnerTickDirection *= -1.0;
+        }
+
+        rAlignment.meAlignment =
+            (rAlignment.mfLabelDirection < 0) ?
+                LABEL_ALIGN_TOP : LABEL_ALIGN_BOTTOM;
+
+        if( ( fDeltaX>0 && m_aScale.Orientation == chart2::AxisOrientation_REVERSE ) ||
+            ( fDeltaX<0 && m_aScale.Orientation == chart2::AxisOrientation_MATHEMATICAL ) )
+            rAlignment.meAlignment =
+                (rAlignment.meAlignment == LABEL_ALIGN_TOP) ?
+                    LABEL_ALIGN_BOTTOM : LABEL_ALIGN_TOP;
+    }
+}
+
+TickFactory* VCartesianAxis::createTickFactory()
+{
+    return createTickFactory2D();
+}
+
+TickFactory2D* VCartesianAxis::createTickFactory2D()
+{
+    AxisLabelAlignment aLabelAlign = m_aAxisProperties.maLabelAlignment;
+    B2DVector aStart, aEnd;
+    get2DAxisMainLine(aStart, aEnd, aLabelAlign, getAxisIntersectionValue());
+
+    B2DVector aLabelLineStart, aLabelLineEnd;
+    get2DAxisMainLine(aLabelLineStart, aLabelLineEnd, aLabelAlign, getLabelLineIntersectionValue());
+    m_aAxisProperties.maLabelAlignment = aLabelAlign;
+
+    return new TickFactory2D( m_aScale, m_aIncrement, aStart, aEnd, aLabelLineStart-aStart );
+}
+
+static void lcl_hideIdenticalScreenValues( TickIter& rTickIter )
+{
+    TickInfo* pPrevTickInfo = rTickIter.firstInfo();
+    if (!pPrevTickInfo)
+        return;
+
+    pPrevTickInfo->bPaintIt = true;
+    for( TickInfo* pTickInfo = rTickIter.nextInfo(); pTickInfo; pTickInfo = rTickIter.nextInfo())
+    {
+        pTickInfo->bPaintIt = (pTickInfo->aTickScreenPosition != pPrevTickInfo->aTickScreenPosition);
+        pPrevTickInfo = pTickInfo;
+    }
+}
+
+//'hide' tickmarks with identical screen values in aAllTickInfos
+void VCartesianAxis::hideIdenticalScreenValues( TickInfoArraysType& rTickInfos ) const
+{
+    if( isComplexCategoryAxis() || isDateAxis() )
+    {
+        sal_Int32 nCount = rTickInfos.size();
+        for( sal_Int32 nN=0; nN<nCount; nN++ )
+        {
+            PureTickIter aTickIter( rTickInfos[nN] );
+            lcl_hideIdenticalScreenValues( aTickIter );
+        }
+    }
+    else
+    {
+        EquidistantTickIter aTickIter( rTickInfos, m_aIncrement, -1 );
+        lcl_hideIdenticalScreenValues( aTickIter );
+    }
+}
+
+sal_Int32 VCartesianAxis::estimateMaximumAutoMainIncrementCount()
+{
+    sal_Int32 nRet = 10;
+
+    if( m_nMaximumTextWidthSoFar==0 && m_nMaximumTextHeightSoFar==0 )
+        return nRet;
+
+    B2DVector aStart, aEnd;
+    AxisLabelAlignment aLabelAlign = m_aAxisProperties.maLabelAlignment;
+    get2DAxisMainLine(aStart, aEnd, aLabelAlign, getAxisIntersectionValue());
+    m_aAxisProperties.maLabelAlignment = aLabelAlign;
+
+    sal_Int32 nMaxHeight = static_cast<sal_Int32>(fabs(aEnd.getY()-aStart.getY()));
+    sal_Int32 nMaxWidth = static_cast<sal_Int32>(fabs(aEnd.getX()-aStart.getX()));
+
+    sal_Int32 nTotalAvailable = nMaxHeight;
+    sal_Int32 nSingleNeeded = m_nMaximumTextHeightSoFar;
+    sal_Int32 nMaxSameLabel = 0;
+
+    // tdf#48041: do not duplicate the value labels because of rounding
+    if (m_aAxisProperties.m_nAxisType != css::chart2::AxisType::DATE)
+    {
+        FixedNumberFormatter aFixedNumberFormatterTest(m_xNumberFormatsSupplier, m_aAxisLabelProperties.m_nNumberFormatKey);
+        OUString sPreviousValueLabel;
+        sal_Int32 nSameLabel = 0;
+        for (auto const & nLabel: m_aAllTickInfos[0])
+        {
+            Color nColor = COL_AUTO;
+            bool bHasColor = false;
+            OUString sValueLabel = aFixedNumberFormatterTest.getFormattedString(nLabel.fScaledTickValue, nColor, bHasColor);
+            if (sValueLabel == sPreviousValueLabel)
+            {
+                nSameLabel++;
+                if (nSameLabel > nMaxSameLabel)
+                    nMaxSameLabel = nSameLabel;
+            }
+            else
+                nSameLabel = 0;
+            sPreviousValueLabel = sValueLabel;
+        }
+    }
+    //for horizontal axis:
+    if( (m_nDimensionIndex == 0 && !m_aAxisProperties.m_bSwapXAndY)
+        || (m_nDimensionIndex == 1 && m_aAxisProperties.m_bSwapXAndY) )
+    {
+        nTotalAvailable = nMaxWidth;
+        nSingleNeeded = m_nMaximumTextWidthSoFar;
+    }
+
+    if( nSingleNeeded>0 )
+        nRet = nTotalAvailable/nSingleNeeded;
+
+    if ( nMaxSameLabel > 0 )
+    {
+        sal_Int32 nRetNoSameLabel = m_aAllTickInfos[0].size() / (nMaxSameLabel + 1);
+        if ( nRet > nRetNoSameLabel )
+           nRet = nRetNoSameLabel;
+    }
+
+    return nRet;
+}
+
+void VCartesianAxis::doStaggeringOfLabels( const AxisLabelProperties& rAxisLabelProperties, TickFactory2D const * pTickFactory2D )
+{
+    if( !pTickFactory2D )
+        return;
+
+    if( isComplexCategoryAxis() )
+    {
+        sal_Int32 nTextLevelCount = getTextLevelCount();
+        B2DVector aCumulatedLabelsDistance(0,0);
+        for( sal_Int32 nTextLevel=0; nTextLevel<nTextLevelCount; nTextLevel++ )
+        {
+            std::unique_ptr<TickIter> apTickIter(createLabelTickIterator(nTextLevel));
+            if (apTickIter)
+            {
+                double fRotationAngleDegree = m_aAxisLabelProperties.m_fRotationAngleDegree;
+                if( nTextLevel>0 )
+                {
+                    lcl_shiftLabels(*apTickIter, aCumulatedLabelsDistance);
+                    //multilevel labels: 0 or 90 by default
+                    if( m_aAxisProperties.m_bSwapXAndY )
+                        fRotationAngleDegree = 90.0;
+                    else
+                        fRotationAngleDegree = 0.0;
+                }
+                aCumulatedLabelsDistance += lcl_getLabelsDistance(
+                    *apTickIter, pTickFactory2D->getDistanceAxisTickToText(m_aAxisProperties),
+                    fRotationAngleDegree);
+            }
+        }
+    }
+    else if (rAxisLabelProperties.isStaggered())
+    {
+        if( !m_aAllTickInfos.empty() )
+        {
+            LabelIterator aInnerIter( m_aAllTickInfos[0], rAxisLabelProperties.m_eStaggering, true );
+            LabelIterator aOuterIter( m_aAllTickInfos[0], rAxisLabelProperties.m_eStaggering, false );
+
+            lcl_shiftLabels( aOuterIter
+                , lcl_getLabelsDistance( aInnerIter
+                    , pTickFactory2D->getDistanceAxisTickToText( m_aAxisProperties ), 0.0 ) );
+        }
+    }
+}
+
+void VCartesianAxis::createLabels()
+{
+    if( !prepareShapeCreation() )
+        return;
+
+    //create labels
+    if (!m_aAxisProperties.m_bDisplayLabels)
+        return;
+
+    std::unique_ptr<TickFactory2D> apTickFactory2D(createTickFactory2D()); // throws on failure
+    TickFactory2D* pTickFactory2D = apTickFactory2D.get();
+
+    //get the transformed screen values for all tickmarks in aAllTickInfos
+    pTickFactory2D->updateScreenValues( m_aAllTickInfos );
+    //'hide' tickmarks with identical screen values in aAllTickInfos
+    hideIdenticalScreenValues( m_aAllTickInfos );
+
+    removeTextShapesFromTicks();
+
+    //create tick mark text shapes
+    sal_Int32 nTextLevelCount = getTextLevelCount();
+    sal_Int32 nScreenDistanceBetweenTicks = -1;
+    for( sal_Int32 nTextLevel=0; nTextLevel<nTextLevelCount; nTextLevel++ )
+    {
+        std::unique_ptr< TickIter > apTickIter(createLabelTickIterator( nTextLevel ));
+        if(apTickIter)
+        {
+            if(nTextLevel==0)
+            {
+                nScreenDistanceBetweenTicks = TickFactory2D::getTickScreenDistance(*apTickIter);
+                if( nTextLevelCount>1 )
+                    nScreenDistanceBetweenTicks*=2; //the above used tick iter does contain also the sub ticks -> thus the given distance is only the half
+            }
+
+            AxisLabelProperties aComplexProps(m_aAxisLabelProperties);
+            if( m_aAxisProperties.m_bComplexCategories )
+            {
+                aComplexProps.m_bLineBreakAllowed = true;
+                aComplexProps.m_bOverlapAllowed = aComplexProps.m_fRotationAngleDegree != 0.0;
+                if( nTextLevel > 0 )
+                {
+                    //multilevel labels: 0 or 90 by default
+                    if( m_aAxisProperties.m_bSwapXAndY )
+                        aComplexProps.m_fRotationAngleDegree = 90.0;
+                    else
+                        aComplexProps.m_fRotationAngleDegree = 0.0;
+                }
+            }
+            AxisLabelProperties& rAxisLabelProperties =  m_aAxisProperties.m_bComplexCategories ? aComplexProps : m_aAxisLabelProperties;
+            while (!createTextShapes(m_xTextTarget, *apTickIter, rAxisLabelProperties,
+                                     pTickFactory2D, nScreenDistanceBetweenTicks))
+            {
+            };
+        }
+    }
+    doStaggeringOfLabels( m_aAxisLabelProperties, pTickFactory2D );
+}
+
+void VCartesianAxis::createMaximumLabels()
+{
+    m_bRecordMaximumTextSize = true;
+    const comphelper::ScopeGuard aGuard([this]() { m_bRecordMaximumTextSize = false; });
+
+    if( !prepareShapeCreation() )
+        return;
+
+    //create labels
+    if (!m_aAxisProperties.m_bDisplayLabels)
+        return;
+
+    std::unique_ptr<TickFactory2D> apTickFactory2D(createTickFactory2D()); // throws on failure
+    TickFactory2D* pTickFactory2D = apTickFactory2D.get();
+
+    //get the transformed screen values for all tickmarks in aAllTickInfos
+    pTickFactory2D->updateScreenValues( m_aAllTickInfos );
+
+    //create tick mark text shapes
+    //@todo: iterate through all tick depth which should be labeled
+
+    AxisLabelProperties aAxisLabelProperties( m_aAxisLabelProperties );
+    if( isAutoStaggeringOfLabelsAllowed( aAxisLabelProperties, pTickFactory2D->isHorizontalAxis(), pTickFactory2D->isVerticalAxis() ) )
+        aAxisLabelProperties.m_eStaggering = AxisLabelStaggering::StaggerEven;
+
+    aAxisLabelProperties.m_bOverlapAllowed = true;
+    aAxisLabelProperties.m_bLineBreakAllowed = false;
+    sal_Int32 nTextLevelCount = getTextLevelCount();
+    for( sal_Int32 nTextLevel=0; nTextLevel<nTextLevelCount; nTextLevel++ )
+    {
+        std::unique_ptr< TickIter > apTickIter(createMaximumLabelTickIterator( nTextLevel ));
+        if(apTickIter)
+        {
+            while (!createTextShapes(m_xTextTarget, *apTickIter, aAxisLabelProperties,
+                                     pTickFactory2D, -1))
+            {
+            };
+        }
+    }
+    doStaggeringOfLabels( aAxisLabelProperties, pTickFactory2D );
+}
+
+void VCartesianAxis::updatePositions()
+{
+    //update positions of labels
+    if (!m_aAxisProperties.m_bDisplayLabels)
+        return;
+
+    std::unique_ptr<TickFactory2D> apTickFactory2D(createTickFactory2D()); // throws on failure
+    TickFactory2D* pTickFactory2D = apTickFactory2D.get();
+
+    //update positions of all existing text shapes
+    pTickFactory2D->updateScreenValues( m_aAllTickInfos );
+
+    sal_Int32 nDepth=0;
+    for (auto const& tickInfos : m_aAllTickInfos)
+    {
+        for (auto const& tickInfo : tickInfos)
+        {
+            const rtl::Reference<SvxShapeText> & xShape2DText(tickInfo.xTextShape);
+            if( xShape2DText.is() )
+            {
+                B2DVector aTextToTickDistance( pTickFactory2D->getDistanceAxisTickToText( m_aAxisProperties, true ) );
+                B2DVector aTickScreenPos2D(tickInfo.aTickScreenPosition);
+                aTickScreenPos2D += aTextToTickDistance;
+                awt::Point aAnchorScreenPosition2D(
+                    static_cast<sal_Int32>(aTickScreenPos2D.getX())
+                    ,static_cast<sal_Int32>(aTickScreenPos2D.getY()));
+
+                double fRotationAngleDegree = m_aAxisLabelProperties.m_fRotationAngleDegree;
+                if( nDepth > 0 )
+                {
+                    //multilevel labels: 0 or 90 by default
+                    if( pTickFactory2D->isHorizontalAxis() )
+                        fRotationAngleDegree = 0.0;
+                    else
+                        fRotationAngleDegree = 90;
+                }
+
+                // #i78696# use mathematically correct rotation now
+                const double fRotationAnglePi(-basegfx::deg2rad(fRotationAngleDegree));
+                uno::Any aATransformation = ShapeFactory::makeTransformation(aAnchorScreenPosition2D, fRotationAnglePi);
+
+                //set new position
+                try
+                {
+                    xShape2DText->SvxShape::setPropertyValue( "Transformation", aATransformation );
+                }
+                catch( const uno::Exception& )
+                {
+                    TOOLS_WARN_EXCEPTION("chart2", "" );
+                }
+
+                //correctPositionForRotation
+                LabelPositionHelper::correctPositionForRotation( xShape2DText
+                    , m_aAxisProperties.maLabelAlignment.meAlignment, fRotationAngleDegree, m_aAxisProperties.m_bComplexCategories );
+            }
+        }
+        ++nDepth;
+    }
+
+    doStaggeringOfLabels( m_aAxisLabelProperties, pTickFactory2D );
+}
+
+void VCartesianAxis::createTickMarkLineShapes( TickInfoArrayType& rTickInfos, const TickmarkProperties& rTickmarkProperties, TickFactory2D const & rTickFactory2D, bool bOnlyAtLabels )
+{
+    sal_Int32 nPointCount = rTickInfos.size();
+    drawing::PointSequenceSequence aPoints(2*nPointCount);
+
+    sal_Int32 nN = 0;
+    for (auto const& tickInfo : rTickInfos)
+    {
+        if( !tickInfo.bPaintIt )
+            continue;
+
+        bool bTicksAtLabels = ( m_aAxisProperties.m_eTickmarkPos != css::chart::ChartAxisMarkPosition_AT_AXIS );
+        double fInnerDirectionSign = m_aAxisProperties.maLabelAlignment.mfInnerTickDirection;
+        if( bTicksAtLabels && m_aAxisProperties.m_eLabelPos == css::chart::ChartAxisLabelPosition_OUTSIDE_END )
+            fInnerDirectionSign *= -1.0;
+        bTicksAtLabels = bTicksAtLabels || bOnlyAtLabels;
+        //add ticks at labels:
+        rTickFactory2D.addPointSequenceForTickLine( aPoints, nN++, tickInfo.fScaledTickValue
+            , fInnerDirectionSign , rTickmarkProperties, bTicksAtLabels );
+        //add ticks at axis (without labels):
+        if( !bOnlyAtLabels && m_aAxisProperties.m_eTickmarkPos == css::chart::ChartAxisMarkPosition_AT_LABELS_AND_AXIS )
+            rTickFactory2D.addPointSequenceForTickLine( aPoints, nN++, tickInfo.fScaledTickValue
+                , m_aAxisProperties.maLabelAlignment.mfInnerTickDirection, rTickmarkProperties, !bTicksAtLabels );
+    }
+    aPoints.realloc(nN);
+    ShapeFactory::createLine2D( m_xGroupShape_Shapes, aPoints
+                                , &rTickmarkProperties.aLineProperties );
+}
+
+void VCartesianAxis::createShapes()
+{
+    if( !prepareShapeCreation() )
+        return;
+
+    //create line shapes
+    if(m_nDimension==2)
+    {
+        std::unique_ptr<TickFactory2D> apTickFactory2D(createTickFactory2D()); // throws on failure
+        TickFactory2D* pTickFactory2D = apTickFactory2D.get();
+
+        //create extra long ticks to separate complex categories (create them only there where the labels are)
+        if( isComplexCategoryAxis() )
+        {
+            TickInfoArraysType aComplexTickInfos;
+            createAllTickInfosFromComplexCategories( aComplexTickInfos, true );
+            pTickFactory2D->updateScreenValues( aComplexTickInfos );
+            hideIdenticalScreenValues( aComplexTickInfos );
+
+            std::vector<TickmarkProperties> aTickmarkPropertiesList;
+            static const bool bIncludeSpaceBetweenTickAndText = false;
+            sal_Int32 nOffset = static_cast<sal_Int32>(pTickFactory2D->getDistanceAxisTickToText( m_aAxisProperties, false, bIncludeSpaceBetweenTickAndText ).getLength());
+            sal_Int32 nTextLevelCount = getTextLevelCount();
+            for( sal_Int32 nTextLevel=0; nTextLevel<nTextLevelCount; nTextLevel++ )
+            {
+                std::unique_ptr< TickIter > apTickIter(createLabelTickIterator( nTextLevel ));
+                if( apTickIter )
+                {
+                    double fRotationAngleDegree = m_aAxisLabelProperties.m_fRotationAngleDegree;
+                    if( nTextLevel > 0 )
+                    {
+                        //Multi-level Labels: default to 0 or 90
+                        if( m_aAxisProperties.m_bSwapXAndY )
+                            fRotationAngleDegree = 90.0;
+                        else
+                            fRotationAngleDegree = 0.0;
+                    }
+                    B2DVector aLabelsDistance(lcl_getLabelsDistance(
+                        *apTickIter, pTickFactory2D->getDistanceAxisTickToText(m_aAxisProperties),
+                        fRotationAngleDegree));
+                    sal_Int32 nCurrentLength = static_cast<sal_Int32>(aLabelsDistance.getLength());
+                    aTickmarkPropertiesList.push_back( m_aAxisProperties.makeTickmarkPropertiesForComplexCategories( nOffset + nCurrentLength, 0 ) );
+                    nOffset += nCurrentLength;
+                }
+            }
+
+            sal_Int32 nTickmarkPropertiesCount = aTickmarkPropertiesList.size();
+            TickInfoArraysType::iterator aDepthIter             = aComplexTickInfos.begin();
+            const TickInfoArraysType::const_iterator aDepthEnd  = aComplexTickInfos.end();
+            for( sal_Int32 nDepth=0; aDepthIter != aDepthEnd && nDepth < nTickmarkPropertiesCount; ++aDepthIter, nDepth++ )
+            {
+                if(nDepth==0 && !m_aAxisProperties.m_nMajorTickmarks)
+                    continue;
+                createTickMarkLineShapes( *aDepthIter, aTickmarkPropertiesList[nDepth], *pTickFactory2D, true /*bOnlyAtLabels*/ );
+            }
+        }
+        //create normal ticks for major and minor intervals
+        {
+            TickInfoArraysType aUnshiftedTickInfos;
+            if( m_aScale.m_bShiftedCategoryPosition )// if m_bShiftedCategoryPosition==true the tickmarks in m_aAllTickInfos are shifted
+            {
+                pTickFactory2D->getAllTicks( aUnshiftedTickInfos );
+                pTickFactory2D->updateScreenValues( aUnshiftedTickInfos );
+                hideIdenticalScreenValues( aUnshiftedTickInfos );
+            }
+            TickInfoArraysType& rAllTickInfos = m_aScale.m_bShiftedCategoryPosition ? aUnshiftedTickInfos : m_aAllTickInfos;
+
+            if (rAllTickInfos.empty())
+                return;
+
+            sal_Int32 nDepth = 0;
+            sal_Int32 nTickmarkPropertiesCount = m_aAxisProperties.m_aTickmarkPropertiesList.size();
+            for( auto& rTickInfos : rAllTickInfos )
+            {
+                if (nDepth == nTickmarkPropertiesCount)
+                    break;
+
+                createTickMarkLineShapes( rTickInfos, m_aAxisProperties.m_aTickmarkPropertiesList[nDepth], *pTickFactory2D, false /*bOnlyAtLabels*/ );
+                nDepth++;
+            }
+        }
+        //create axis main lines
+        //it serves also as the handle shape for the axis selection
+        {
+            drawing::PointSequenceSequence aPoints(1);
+            apTickFactory2D->createPointSequenceForAxisMainLine( aPoints );
+            rtl::Reference<SvxShapePolyPolygon> xShape = ShapeFactory::createLine2D(
+                    m_xGroupShape_Shapes, aPoints
+                    , &m_aAxisProperties.m_aLineProperties );
+            //because of this name this line will be used for marking the axis
+            ::chart::ShapeFactory::setShapeName( xShape, "MarkHandles" );
+        }
+        //create an additional line at NULL
+        if( !AxisHelper::isAxisPositioningEnabled() )
+        {
+            double fExtraLineCrossesOtherAxis = getExtraLineIntersectionValue();
+            if (!std::isnan(fExtraLineCrossesOtherAxis))
+            {
+                B2DVector aStart, aEnd;
+                AxisLabelAlignment aLabelAlign = m_aAxisProperties.maLabelAlignment;
+                get2DAxisMainLine(aStart, aEnd, aLabelAlign, fExtraLineCrossesOtherAxis);
+                m_aAxisProperties.maLabelAlignment = aLabelAlign;
+                drawing::PointSequenceSequence aPoints{{
+                        {static_cast<sal_Int32>(aStart.getX()), static_cast<sal_Int32>(aStart.getY())},
+                        {static_cast<sal_Int32>(aEnd.getX()), static_cast<sal_Int32>(aEnd.getY())} }};
+                ShapeFactory::createLine2D(
+                        m_xGroupShape_Shapes, aPoints, &m_aAxisProperties.m_aLineProperties );
+            }
+        }
+    }
+
+    createLabels();
+}
+
+} //namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */