tdf#80194 editeng: fix auto subscript calculations

...and auto superscript too (although not as noticably).

THIS WILL CHANGE THE POSITION OF EDITENG SUBSCRIPTS
AND SUPERSCRIPTS IN EXISTING DOCUMENTS!
That is because they were very poorly placed
before - using a formula that is very different
from how Writer does it. Everyone in the bug reports
indicates that Writer does it good, but Impress
does it really bad. (tdf#89849, tdf#63083)

FOR EXAMPLE, when the char-size is reduced to
the default OF 58%, it will now be raised by 33%, not 42%.
Likewise, the subscript will now be lowered by 8%, not 42%.

THIS AFFECTS/FIXES Writer textboxes, Calc, Draw/Impress.

"Automatic" indicates that there is not a
"correct" answer, but that the computer should make
it "look good", so the user should be able to accept
this change in positioning, as long as it looks good.

The number of documents affected might be less than
one would expect. By default .uno:SuperScript
does NOT set auto mode (although Format-Character does).
Since most people would use the toolbar instead of the
format menu to create a superscript, auto will be rare.
So there will be relatively few cases where
subscripts are automatic in editeng, especially since
it looks so poor that most people probably turned
automatic off...

This patch has no effect on non-automatic escapement.

It uses the same fomula that calculated DFLT_ESC_SUB
(since it isn't an arbitrarily chosen value).
This is an approximation of the formula that Writer
uses (since Writer does exact calculations based
on each font's metrics).
This Writer-inspired formula was introduced in LO 6.4
for more accurate exporting to MSO
word processing formats (tdf#127316).

Change-Id: I0267810efe31a2b3be41bf2d39e2278ce9bc99e9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/88911
Tested-by: Jenkins
Reviewed-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>
Reviewed-by: Justin Luth <justin_luth@sil.org>

5 files changed, 430 insertions, 6 deletions

diff --git a/editeng/source/editeng/editattr.cxx b/editeng/source/editeng/editattr.cxx
index f000cf793560..a99e4d496f74 100644
--- a/editeng/source/editeng/editattr.cxx
+++ b/editeng/source/editeng/editattr.cxx
@@ -273,9 +273,9 @@ void EditCharAttribEscapement::SetFont( SvxFont& rFont, OutputDevice* )
 
     short nEsc = static_cast<const SvxEscapementItem*>(GetItem())->GetEsc();
     if ( nEsc == DFLT_ESC_AUTO_SUPER )
-        nEsc = 100 - nProp;
+        nEsc =  .8 * (100 - nProp);
     else if ( nEsc == DFLT_ESC_AUTO_SUB )
-        nEsc = sal::static_int_cast< short >( -( 100 - nProp ) );
+        nEsc =  .2 * -(100 - nProp);
     rFont.SetEscapement( nEsc );
 }
 
diff --git a/editeng/source/editeng/editdoc.cxx b/editeng/source/editeng/editdoc.cxx
index f3f55edf60c1..42fc1f3cc22c 100644
--- a/editeng/source/editeng/editdoc.cxx
+++ b/editeng/source/editeng/editdoc.cxx
@@ -2008,9 +2008,9 @@ void CreateFont( SvxFont& rFont, const SfxItemSet& rSet, bool bSearchInParent, S
 
         short nEsc = rEsc.GetEsc();
         if ( nEsc == DFLT_ESC_AUTO_SUPER )
-            nEsc = 100 - nProp;
+            nEsc = .8 * (100 - nProp);
         else if ( nEsc == DFLT_ESC_AUTO_SUB )
-            nEsc = sal::static_int_cast< short >( -( 100 - nProp ) );
+            nEsc = .2 * -(100 - nProp);
         rFont.SetEscapement( nEsc );
     }
     if ( bSearchInParent || ( rSet.GetItemState( EE_CHAR_PAIRKERNING ) == SfxItemState::SET ) )
diff --git a/editeng/source/editeng/impedit4.cxx b/editeng/source/editeng/impedit4.cxx
index 67e924653618..25d7ecc0aa8a 100644
--- a/editeng/source/editeng/impedit4.cxx
+++ b/editeng/source/editeng/impedit4.cxx
@@ -930,12 +930,12 @@ void ImpEditEngine::WriteItemAsRTF( const SfxPoolItem& rItem, SvStream& rOutput,
             short nEsc = static_cast<const SvxEscapementItem&>(rItem).GetEsc();
             if ( nEsc == DFLT_ESC_AUTO_SUPER )
             {
-                nEsc = 100 - nProp;
+                nEsc =  .8 * (100 - nProp);
                 nProp100++; // A 1 afterwards means 'automatic'.
             }
             else if ( nEsc == DFLT_ESC_AUTO_SUB )
             {
-                nEsc = sal::static_int_cast< short >( -( 100 - nProp ) );
+                nEsc =  .2 * -(100 - nProp);
                 nProp100++;
             }
             // SWG:
diff --git a/sd/qa/unit/data/tdf80194_defaultSubscripts.fodg b/sd/qa/unit/data/tdf80194_defaultSubscripts.fodg
new file mode 100644
index 000000000000..d8028b6371c1
--- /dev/null
+++ b/sd/qa/unit/data/tdf80194_defaultSubscripts.fodg
@@ -0,0 +1,407 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<office:document xmlns:officeooo="http://openoffice.org/2009/office" xmlns:anim="urn:oasis:names:tc:opendocument:xmlns:animation:1.0" xmlns:smil="urn:oasis:names:tc:opendocument:xmlns:smil-compatible:1.0" xmlns:presentation="urn:oasis:names:tc:opendocument:xmlns:presentation:1.0" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ooo="http://openoffice.org/2004/office" xmlns:loext="urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0" xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" xmlns:calcext="urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:rpt="http://openoffice.org/2005/report" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:css3t="http://www.w3.org/TR/css3-text/" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:drawooo="http://openoffice.org/2010/draw" office:version="1.2" office:mimetype="application/vnd.oasis.opendocument.graphics">
+ <office:meta><meta:creation-date>2020-02-17T15:21:21.927256142</meta:creation-date><dc:date>2020-02-17T16:18:41.297941901</dc:date><meta:editing-duration>PT17M53S</meta:editing-duration><meta:editing-cycles>8</meta:editing-cycles><meta:generator>LibreOfficeDev/7.0.0.0.alpha0$Linux_X86_64 LibreOffice_project/76fec020a99a41a06176307cb2c31f9494867dd0</meta:generator><meta:document-statistic meta:object-count="2"/></office:meta>
+ <office:settings>
+  <config:config-item-set config:name="ooo:view-settings">
+   <config:config-item config:name="VisibleAreaTop" config:type="int">19876</config:config-item>
+   <config:config-item config:name="VisibleAreaLeft" config:type="int">6602</config:config-item>
+   <config:config-item config:name="VisibleAreaWidth" config:type="int">3646</config:config-item>
+   <config:config-item config:name="VisibleAreaHeight" config:type="int">3659</config:config-item>
+   <config:config-item-map-indexed config:name="Views">
+    <config:config-item-map-entry>
+     <config:config-item config:name="ViewId" config:type="string">view1</config:config-item>
+     <config:config-item config:name="GridIsVisible" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="GridIsFront" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="IsSnapToGrid" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="IsSnapToPageMargins" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="IsSnapToSnapLines" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="IsSnapToObjectFrame" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="IsSnapToObjectPoints" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="IsPlusHandlesAlwaysVisible" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="IsFrameDragSingles" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="EliminatePolyPointLimitAngle" config:type="int">1500</config:config-item>
+     <config:config-item config:name="IsEliminatePolyPoints" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="VisibleLayers" config:type="base64Binary">Hw==</config:config-item>
+     <config:config-item config:name="PrintableLayers" config:type="base64Binary">Hw==</config:config-item>
+     <config:config-item config:name="LockedLayers" config:type="base64Binary"/>
+     <config:config-item config:name="NoAttribs" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="NoColors" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="RulerIsVisible" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="PageKind" config:type="short">0</config:config-item>
+     <config:config-item config:name="SelectedPage" config:type="short">0</config:config-item>
+     <config:config-item config:name="IsLayerMode" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="IsDoubleClickTextEdit" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="IsClickChangeRotation" config:type="boolean">true</config:config-item>
+     <config:config-item config:name="SlidesPerRow" config:type="short">4</config:config-item>
+     <config:config-item config:name="EditMode" config:type="int">0</config:config-item>
+     <config:config-item config:name="VisibleAreaTop" config:type="int">20184</config:config-item>
+     <config:config-item config:name="VisibleAreaLeft" config:type="int">6885</config:config-item>
+     <config:config-item config:name="VisibleAreaWidth" config:type="int">3052</config:config-item>
+     <config:config-item config:name="VisibleAreaHeight" config:type="int">3063</config:config-item>
+     <config:config-item config:name="GridCoarseWidth" config:type="int">1000</config:config-item>
+     <config:config-item config:name="GridCoarseHeight" config:type="int">1000</config:config-item>
+     <config:config-item config:name="GridFineWidth" config:type="int">100</config:config-item>
+     <config:config-item config:name="GridFineHeight" config:type="int">100</config:config-item>
+     <config:config-item config:name="GridSnapWidthXNumerator" config:type="int">1000</config:config-item>
+     <config:config-item config:name="GridSnapWidthXDenominator" config:type="int">10</config:config-item>
+     <config:config-item config:name="GridSnapWidthYNumerator" config:type="int">1000</config:config-item>
+     <config:config-item config:name="GridSnapWidthYDenominator" config:type="int">10</config:config-item>
+     <config:config-item config:name="IsAngleSnapEnabled" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="SnapAngle" config:type="int">1500</config:config-item>
+     <config:config-item config:name="ZoomOnPage" config:type="boolean">false</config:config-item>
+     <config:config-item config:name="AnchoredTextOverflowLegacy" config:type="boolean">false</config:config-item>
+    </config:config-item-map-entry>
+   </config:config-item-map-indexed>
+  </config:config-item-set>
+  <config:config-item-set config:name="ooo:configuration-settings">
+   <config:config-item config:name="ApplyUserData" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="BitmapTableURL" config:type="string">$(brandbaseurl)/share/palette%3B$(userpath)/config/standard.sob</config:config-item>
+   <config:config-item config:name="CharacterCompressionType" config:type="short">0</config:config-item>
+   <config:config-item config:name="ColorTableURL" config:type="string">$(brandbaseurl)/share/palette%3B$(userpath)/config/standard.soc</config:config-item>
+   <config:config-item config:name="DashTableURL" config:type="string">$(brandbaseurl)/share/palette%3B$(userpath)/config/standard.sod</config:config-item>
+   <config:config-item config:name="DefaultTabStop" config:type="int">1250</config:config-item>
+   <config:config-item config:name="EmbedAsianScriptFonts" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="EmbedComplexScriptFonts" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="EmbedFonts" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="EmbedLatinScriptFonts" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="EmbedOnlyUsedFonts" config:type="boolean">false</config:config-item>
+   <config:config-item-map-indexed config:name="ForbiddenCharacters">
+    <config:config-item-map-entry>
+     <config:config-item config:name="Language" config:type="string">en</config:config-item>
+     <config:config-item config:name="Country" config:type="string">GB</config:config-item>
+     <config:config-item config:name="Variant" config:type="string"/>
+     <config:config-item config:name="BeginLine" config:type="string"/>
+     <config:config-item config:name="EndLine" config:type="string"/>
+    </config:config-item-map-entry>
+   </config:config-item-map-indexed>
+   <config:config-item config:name="GradientTableURL" config:type="string">$(brandbaseurl)/share/palette%3B$(userpath)/config/standard.sog</config:config-item>
+   <config:config-item config:name="HatchTableURL" config:type="string">$(brandbaseurl)/share/palette%3B$(userpath)/config/standard.soh</config:config-item>
+   <config:config-item config:name="IsKernAsianPunctuation" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="IsPrintBooklet" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="IsPrintBookletBack" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="IsPrintBookletFront" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="IsPrintDate" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="IsPrintFitPage" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="IsPrintHiddenPages" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="IsPrintPageName" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="IsPrintTilePage" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="IsPrintTime" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="LineEndTableURL" config:type="string">$(brandbaseurl)/share/palette%3B$(userpath)/config/standard.soe</config:config-item>
+   <config:config-item config:name="LoadReadonly" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="MeasureUnit" config:type="short">3</config:config-item>
+   <config:config-item config:name="PageNumberFormat" config:type="int">4</config:config-item>
+   <config:config-item config:name="ParagraphSummation" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="PrintQuality" config:type="int">0</config:config-item>
+   <config:config-item config:name="PrinterIndependentLayout" config:type="string">low-resolution</config:config-item>
+   <config:config-item config:name="PrinterName" config:type="string">Boomaga</config:config-item>
+   <config:config-item config:name="PrinterPaperFromSetup" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="PrinterSetup" config:type="base64Binary">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</config:config-item>
+   <config:config-item config:name="SaveThumbnail" config:type="boolean">true</config:config-item>
+   <config:config-item config:name="SaveVersionOnClose" config:type="boolean">false</config:config-item>
+   <config:config-item config:name="ScaleDenominator" config:type="int">1</config:config-item>
+   <config:config-item config:name="ScaleNumerator" config:type="int">1</config:config-item>
+   <config:config-item config:name="UpdateFromTemplate" config:type="boolean">true</config:config-item>
+  </config:config-item-set>
+ </office:settings>
+ <office:scripts>
+  <office:script script:language="ooo:Basic">
+   <ooo:libraries xmlns:ooo="http://openoffice.org/2004/office" xmlns:xlink="http://www.w3.org/1999/xlink"/>
+  </office:script>
+ </office:scripts>
+ <office:font-face-decls>
+  <style:font-face style:name="Liberation Sans" svg:font-family="&apos;Liberation Sans&apos;" style:font-family-generic="roman" style:font-pitch="variable"/>
+  <style:font-face style:name="Liberation Serif" svg:font-family="&apos;Liberation Serif&apos;" style:font-family-generic="roman" style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Sans" svg:font-family="&apos;Noto Sans&apos;" style:font-family-generic="roman" style:font-pitch="variable"/>
+  <style:font-face style:name="DejaVu Sans" svg:font-family="&apos;DejaVu Sans&apos;" style:font-family-generic="system" style:font-pitch="variable"/>
+  <style:font-face style:name="FreeSans" svg:font-family="FreeSans" style:font-family-generic="system" style:font-pitch="variable"/>
+  <style:font-face style:name="Noto Sans CJK SC Regular" svg:font-family="&apos;Noto Sans CJK SC Regular&apos;" style:font-family-generic="system" style:font-pitch="variable"/>
+ </office:font-face-decls>
+ <office:styles>
+  <draw:gradient draw:name="Filled" draw:style="linear" draw:start-color="#ffffff" draw:end-color="#cccccc" draw:start-intensity="100%" draw:end-intensity="100%" draw:angle="300" draw:border="0%"/>
+  <draw:gradient draw:name="Filled_20_Blue" draw:display-name="Filled Blue" draw:style="linear" draw:start-color="#729fcf" draw:end-color="#355269" draw:start-intensity="100%" draw:end-intensity="100%" draw:angle="300" draw:border="0%"/>
+  <draw:gradient draw:name="Filled_20_Green" draw:display-name="Filled Green" draw:style="linear" draw:start-color="#77bc65" draw:end-color="#127622" draw:start-intensity="100%" draw:end-intensity="100%" draw:angle="300" draw:border="0%"/>
+  <draw:gradient draw:name="Filled_20_Red" draw:display-name="Filled Red" draw:style="linear" draw:start-color="#ff6d6d" draw:end-color="#c9211e" draw:start-intensity="100%" draw:end-intensity="100%" draw:angle="300" draw:border="0%"/>
+  <draw:gradient draw:name="Filled_20_Yellow" draw:display-name="Filled Yellow" draw:style="linear" draw:start-color="#ffde59" draw:end-color="#b47804" draw:start-intensity="100%" draw:end-intensity="100%" draw:angle="300" draw:border="0%"/>
+  <draw:gradient draw:name="Pastel_20_Bouquet" draw:display-name="Pastel Bouquet" draw:style="linear" draw:start-color="#e8a202" draw:end-color="#5b277d" draw:start-intensity="100%" draw:end-intensity="100%" draw:angle="300" draw:border="0%"/>
+  <draw:gradient draw:name="Shapes" draw:style="rectangular" draw:cx="50%" draw:cy="50%" draw:start-color="#cccccc" draw:end-color="#ffffff" draw:start-intensity="100%" draw:end-intensity="100%" draw:angle="0" draw:border="0%"/>
+  <draw:marker draw:name="Arrow" svg:viewBox="0 0 20 30" svg:d="M10 0l-10 30h20z"/>
+  <style:default-style style:family="graphic">
+   <style:graphic-properties svg:stroke-color="#3465a4" draw:fill-color="#729fcf" fo:wrap-option="no-wrap"/>
+   <style:paragraph-properties style:text-autospace="ideograph-alpha" style:punctuation-wrap="simple" style:line-break="strict" style:writing-mode="lr-tb" style:font-independent-line-spacing="false">
+    <style:tab-stops/>
+   </style:paragraph-properties>
+   <style:text-properties style:use-window-font-color="true" loext:opacity="0%" style:font-name="Liberation Serif" fo:font-size="24pt" fo:language="en" fo:country="GB" style:font-name-asian="DejaVu Sans" style:font-size-asian="24pt" style:language-asian="zh" style:country-asian="CN" style:font-name-complex="DejaVu Sans" style:font-size-complex="24pt" style:language-complex="hi" style:country-complex="IN"/>
+  </style:default-style>
+  <style:style style:name="standard" style:family="graphic">
+   <style:graphic-properties draw:stroke="solid" svg:stroke-width="0cm" svg:stroke-color="#3465a4" draw:marker-start-width="0.2cm" draw:marker-start-center="false" draw:marker-end-width="0.2cm" draw:marker-end-center="false" draw:fill="solid" draw:fill-color="#729fcf" draw:textarea-horizontal-align="justify" fo:padding-top="0.125cm" fo:padding-bottom="0.125cm" fo:padding-left="0.25cm" fo:padding-right="0.25cm" draw:shadow="hidden" draw:shadow-offset-x="0.2cm" draw:shadow-offset-y="0.2cm" draw:shadow-color="#808080">
+    <text:list-style style:name="standard">
+     <text:list-level-style-bullet text:level="1" text:bullet-char="●">
+      <style:list-level-properties text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="2" text:bullet-char="●">
+      <style:list-level-properties text:space-before="0.6cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="3" text:bullet-char="●">
+      <style:list-level-properties text:space-before="1.2cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="4" text:bullet-char="●">
+      <style:list-level-properties text:space-before="1.8cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="5" text:bullet-char="●">
+      <style:list-level-properties text:space-before="2.4cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="6" text:bullet-char="●">
+      <style:list-level-properties text:space-before="3cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="7" text:bullet-char="●">
+      <style:list-level-properties text:space-before="3.6cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="8" text:bullet-char="●">
+      <style:list-level-properties text:space-before="4.2cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="9" text:bullet-char="●">
+      <style:list-level-properties text:space-before="4.8cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+     <text:list-level-style-bullet text:level="10" text:bullet-char="●">
+      <style:list-level-properties text:space-before="5.4cm" text:min-label-width="0.6cm"/>
+      <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+     </text:list-level-style-bullet>
+    </text:list-style>
+   </style:graphic-properties>
+   <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:margin-top="0cm" fo:margin-bottom="0cm" fo:line-height="100%" fo:text-indent="0cm"/>
+   <style:text-properties fo:font-variant="normal" fo:text-transform="none" style:use-window-font-color="true" loext:opacity="0%" style:text-outline="false" style:text-line-through-style="none" style:text-line-through-type="none" style:font-name="Liberation Sans" fo:font-family="&apos;Liberation Sans&apos;" style:font-family-generic="roman" style:font-pitch="variable" fo:font-size="18pt" fo:font-style="normal" fo:text-shadow="none" style:text-underline-style="none" fo:font-weight="normal" style:letter-kerning="true" style:font-name-asian="Noto Sans CJK SC Regular" style:font-family-asian="&apos;Noto Sans CJK SC Regular&apos;" style:font-family-generic-asian="system" style:font-pitch-asian="variable" style:font-size-asian="18pt" style:font-style-asian="normal" style:font-weight-asian="normal" style:font-name-complex="FreeSans" style:font-family-complex="FreeSans" style:font-family-generic-complex="system" style:font-pitch-complex="variable" style:font-size-complex="18pt" style:font-style-complex="normal" style:font-weight-complex="normal" style:text-emphasize="none" style:font-relief="none" style:text-overline-style="none" style:text-overline-color="font-color"/>
+  </style:style>
+  <style:style style:name="objectwithoutfill" style:family="graphic" style:parent-style-name="standard">
+   <style:graphic-properties draw:fill="none"/>
+  </style:style>
+  <style:style style:name="Object_20_with_20_no_20_fill_20_and_20_no_20_line" style:display-name="Object with no fill and no line" style:family="graphic" style:parent-style-name="standard">
+   <style:graphic-properties draw:stroke="none" draw:fill="none"/>
+  </style:style>
+  <style:style style:name="Text" style:family="graphic">
+   <style:graphic-properties draw:stroke="solid" svg:stroke-color="#cccccc" draw:fill="solid" draw:fill-color="#eeeeee"/>
+   <style:text-properties style:font-name="Noto Sans" fo:font-family="&apos;Noto Sans&apos;" style:font-family-generic="roman" style:font-pitch="variable"/>
+  </style:style>
+  <style:style style:name="A4" style:family="graphic" style:parent-style-name="Text">
+   <style:graphic-properties draw:fill="none"/>
+   <style:text-properties fo:font-size="18pt"/>
+  </style:style>
+  <style:style style:name="Title_20_A4" style:display-name="Title A4" style:family="graphic" style:parent-style-name="A4">
+   <style:graphic-properties draw:stroke="none"/>
+   <style:text-properties fo:font-size="44pt"/>
+  </style:style>
+  <style:style style:name="Heading_20_A4" style:display-name="Heading A4" style:family="graphic" style:parent-style-name="A4">
+   <style:graphic-properties draw:stroke="none"/>
+   <style:text-properties fo:font-size="24pt"/>
+  </style:style>
+  <style:style style:name="Text_20_A4" style:display-name="Text A4" style:family="graphic" style:parent-style-name="A4">
+   <style:graphic-properties draw:stroke="none"/>
+  </style:style>
+  <style:style style:name="A4" style:family="graphic" style:parent-style-name="Text">
+   <style:graphic-properties draw:fill="none"/>
+   <style:text-properties fo:font-size="18pt"/>
+  </style:style>
+  <style:style style:name="Title_20_A0" style:display-name="Title A0" style:family="graphic" style:parent-style-name="A4">
+   <style:graphic-properties draw:stroke="none"/>
+   <style:text-properties fo:font-size="96pt"/>
+  </style:style>
+  <style:style style:name="Heading_20_A0" style:display-name="Heading A0" style:family="graphic" style:parent-style-name="A4">
+   <style:graphic-properties draw:stroke="none"/>
+   <style:text-properties fo:font-size="72pt"/>
+  </style:style>
+  <style:style style:name="Text_20_A0" style:display-name="Text A0" style:family="graphic" style:parent-style-name="A4">
+   <style:graphic-properties draw:stroke="none"/>
+  </style:style>
+  <style:style style:name="Graphic" style:family="graphic">
+   <style:graphic-properties draw:fill="solid" draw:fill-color="#ffffff"/>
+   <style:text-properties style:font-name="Liberation Sans" fo:font-family="&apos;Liberation Sans&apos;" style:font-family-generic="roman" style:font-pitch="variable" fo:font-size="18pt"/>
+  </style:style>
+  <style:style style:name="Shapes" style:family="graphic" style:parent-style-name="Graphic">
+   <style:graphic-properties draw:stroke="none" draw:fill="gradient" draw:fill-gradient-name="Shapes"/>
+   <style:text-properties fo:font-size="14pt" fo:font-weight="bold"/>
+  </style:style>
+  <style:style style:name="Filled" style:family="graphic" style:parent-style-name="Shapes">
+   <style:graphic-properties draw:fill="gradient" draw:fill-gradient-name="Filled"/>
+  </style:style>
+  <style:style style:name="Filled_20_Blue" style:display-name="Filled Blue" style:family="graphic" style:parent-style-name="Filled">
+   <style:graphic-properties draw:fill-gradient-name="Filled_20_Blue"/>
+   <style:text-properties fo:color="#ffffff" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="Filled_20_Green" style:display-name="Filled Green" style:family="graphic" style:parent-style-name="Filled">
+   <style:graphic-properties draw:fill-gradient-name="Filled_20_Green"/>
+   <style:text-properties fo:color="#ffffff" loext:opacity="100%" style:font-name="Liberation Sans" fo:font-family="&apos;Liberation Sans&apos;" style:font-family-generic="roman" style:font-pitch="variable"/>
+  </style:style>
+  <style:style style:name="Filled_20_Red" style:display-name="Filled Red" style:family="graphic" style:parent-style-name="Filled">
+   <style:graphic-properties draw:fill-gradient-name="Filled_20_Red"/>
+   <style:text-properties fo:color="#ffffff" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="Filled_20_Yellow" style:display-name="Filled Yellow" style:family="graphic" style:parent-style-name="Filled">
+   <style:graphic-properties draw:fill-gradient-name="Filled_20_Yellow"/>
+   <style:text-properties fo:color="#ffffff" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="Outlined" style:family="graphic" style:parent-style-name="Shapes">
+   <style:graphic-properties draw:stroke="solid" svg:stroke-width="0.081cm" svg:stroke-color="#000000" draw:fill="none"/>
+  </style:style>
+  <style:style style:name="Outlined_20_Blue" style:display-name="Outlined Blue" style:family="graphic" style:parent-style-name="Outlined">
+   <style:graphic-properties svg:stroke-color="#355269"/>
+   <style:text-properties fo:color="#355269" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="Outlined_20_Green" style:display-name="Outlined Green" style:family="graphic" style:parent-style-name="Outlined">
+   <style:graphic-properties svg:stroke-color="#127622"/>
+   <style:text-properties fo:color="#127622" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="Outlined_20_Red" style:display-name="Outlined Red" style:family="graphic" style:parent-style-name="Outlined">
+   <style:graphic-properties svg:stroke-color="#c9211e"/>
+   <style:text-properties fo:color="#c9211e" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="Outlined_20_Yellow" style:display-name="Outlined Yellow" style:family="graphic" style:parent-style-name="Outlined">
+   <style:graphic-properties draw:stroke="solid" svg:stroke-color="#b47804"/>
+   <style:text-properties fo:color="#b47804" loext:opacity="100%"/>
+  </style:style>
+  <style:style style:name="Lines" style:family="graphic" style:parent-style-name="Graphic">
+   <style:graphic-properties draw:stroke="solid" svg:stroke-color="#000000" draw:fill="none"/>
+  </style:style>
+  <style:style style:name="Arrow_20_Line" style:display-name="Arrow Line" style:family="graphic" style:parent-style-name="Lines">
+   <style:graphic-properties draw:marker-start="Arrow" draw:marker-start-width="0.2cm" draw:marker-end="Arrow" draw:marker-end-width="0.2cm" draw:show-unit="true"/>
+  </style:style>
+  <style:style style:name="Arrow_20_Dashed" style:display-name="Arrow Dashed" style:family="graphic" style:parent-style-name="Lines">
+   <style:graphic-properties draw:stroke="dash"/>
+  </style:style>
+ </office:styles>
+ <office:automatic-styles>
+  <style:page-layout style:name="PM0">
+   <style:page-layout-properties fo:margin-top="1cm" fo:margin-bottom="1cm" fo:margin-left="1cm" fo:margin-right="1cm" fo:page-width="21cm" fo:page-height="29.7cm" style:print-orientation="portrait"/>
+  </style:page-layout>
+  <style:style style:name="dp1" style:family="drawing-page">
+   <style:drawing-page-properties draw:background-size="border" draw:fill="none"/>
+  </style:style>
+  <style:style style:name="dp2" style:family="drawing-page"/>
+  <style:style style:name="gr1" style:family="graphic" style:parent-style-name="standard">
+   <style:graphic-properties draw:stroke="none" svg:stroke-color="#000000" draw:fill="gradient" draw:fill-color="#ffffff" draw:fill-gradient-name="Pastel_20_Bouquet" fo:min-height="4.25cm"/>
+   <style:paragraph-properties style:writing-mode="lr-tb"/>
+  </style:style>
+  <style:style style:name="gr2" style:family="graphic" style:parent-style-name="standard">
+   <style:graphic-properties draw:stroke="none" svg:stroke-color="#000000" draw:fill="none" draw:fill-color="#ffffff" fo:min-height="16.354cm"/>
+   <style:paragraph-properties style:writing-mode="lr-tb"/>
+  </style:style>
+  <style:style style:name="P1" style:family="paragraph">
+   <loext:graphic-properties draw:fill="gradient" draw:fill-color="#ffffff" draw:fill-gradient-name="Pastel_20_Bouquet"/>
+   <style:paragraph-properties style:writing-mode="lr-tb"/>
+  </style:style>
+  <style:style style:name="P2" style:family="paragraph">
+   <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:margin-top="0cm" fo:margin-bottom="0cm" fo:line-height="100%" fo:text-indent="0cm"/>
+  </style:style>
+  <style:style style:name="P3" style:family="paragraph">
+   <loext:graphic-properties draw:fill="none" draw:fill-color="#ffffff"/>
+   <style:paragraph-properties style:writing-mode="lr-tb"/>
+  </style:style>
+  <style:style style:name="T1" style:family="text">
+   <style:text-properties style:text-position="sub 58%" fo:font-size="18pt" style:font-size-asian="18pt" style:font-size-complex="18pt"/>
+  </style:style>
+  <style:style style:name="T2" style:family="text">
+   <style:text-properties style:text-position="0% 100%" fo:font-size="18pt" style:font-size-asian="18pt" style:font-size-complex="18pt"/>
+  </style:style>
+  <style:style style:name="T3" style:family="text">
+   <style:text-properties style:text-position="super 58%" fo:font-size="18pt" style:font-size-asian="18pt" style:font-size-complex="18pt"/>
+  </style:style>
+  <text:list-style style:name="L1">
+   <text:list-level-style-bullet text:level="1" text:bullet-char="●">
+    <style:list-level-properties text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="2" text:bullet-char="●">
+    <style:list-level-properties text:space-before="0.6cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="3" text:bullet-char="●">
+    <style:list-level-properties text:space-before="1.2cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="4" text:bullet-char="●">
+    <style:list-level-properties text:space-before="1.8cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="5" text:bullet-char="●">
+    <style:list-level-properties text:space-before="2.4cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="6" text:bullet-char="●">
+    <style:list-level-properties text:space-before="3cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="7" text:bullet-char="●">
+    <style:list-level-properties text:space-before="3.6cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="8" text:bullet-char="●">
+    <style:list-level-properties text:space-before="4.2cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="9" text:bullet-char="●">
+    <style:list-level-properties text:space-before="4.8cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+   <text:list-level-style-bullet text:level="10" text:bullet-char="●">
+    <style:list-level-properties text:space-before="5.4cm" text:min-label-width="0.6cm"/>
+    <style:text-properties fo:font-family="StarSymbol" style:use-window-font-color="true" fo:font-size="45%"/>
+   </text:list-level-style-bullet>
+  </text:list-style>
+ </office:automatic-styles>
+ <office:master-styles>
+  <draw:layer-set>
+   <draw:layer draw:name="layout"/>
+   <draw:layer draw:name="background"/>
+   <draw:layer draw:name="backgroundobjects"/>
+   <draw:layer draw:name="controls"/>
+   <draw:layer draw:name="measurelines"/>
+  </draw:layer-set>
+  <style:master-page style:name="Default" style:page-layout-name="PM0" draw:style-name="dp1"/>
+ </office:master-styles>
+ <office:body>
+  <office:drawing>
+   <draw:page draw:name="page1" draw:style-name="dp2" draw:master-page-name="Default">
+    <draw:frame draw:name="Zoomed Textbox" draw:style-name="gr1" draw:text-style-name="P1" draw:layer="layout" svg:width="8.2cm" svg:height="4.5cm" svg:x="3.9cm" svg:y="19.2cm">
+     <draw:text-box>
+      <text:p>Subscript shouldn’t drop below decender: q<text:span text:style-name="T1">p</text:span></text:p>
+      <text:p><text:span text:style-name="T2"/></text:p>
+      <text:p><text:span text:style-name="T2">Superscript shouldn’t raise above ascender: d</text:span><text:span text:style-name="T3">L</text:span></text:p>
+     </draw:text-box>
+    </draw:frame>
+    <draw:frame draw:name="Overgrown textbox" draw:style-name="gr2" draw:text-style-name="P3" draw:layer="layout" svg:width="16.9cm" svg:height="16.604cm" svg:x="1.6cm" svg:y="2.6cm">
+     <draw:text-box>
+      <text:p>Text with a<text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">A normal line of text</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">A normal line of text</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">A normal line of text</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">A normal line of text</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">A normal line of text</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">A normal line of text</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T1">Subscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T3">Superscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T3">Superscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">Text with a</text:span><text:span text:style-name="T3">Superscript</text:span></text:p>
+      <text:p text:style-name="P2"><text:span text:style-name="T2">The spacing between all of these rows should be identical. There should not be big gaps caused by default subscripts or superscripts.</text:span></text:p>
+     </draw:text-box>
+    </draw:frame>
+   </draw:page>
+  </office:drawing>
+ </office:body>
+</office:document>
\ No newline at end of file
diff --git a/sd/qa/unit/export-tests.cxx b/sd/qa/unit/export-tests.cxx
index 6446db8ddb89..fef365062ada 100644
--- a/sd/qa/unit/export-tests.cxx
+++ b/sd/qa/unit/export-tests.cxx
@@ -59,6 +59,7 @@ public:
     void testEmbeddedPdf();
     void testEmbeddedText();
     void testTransparenText();
+    void testDefaultSubscripts();
     void testTdf98477();
     void testAuthorField();
     void testTdf50499();
@@ -91,6 +92,7 @@ public:
     CPPUNIT_TEST(testEmbeddedPdf);
     CPPUNIT_TEST(testEmbeddedText);
     CPPUNIT_TEST(testTransparenText);
+    CPPUNIT_TEST(testDefaultSubscripts);
     CPPUNIT_TEST(testTdf98477);
     CPPUNIT_TEST(testAuthorField);
     CPPUNIT_TEST(testTdf50499);
@@ -851,6 +853,21 @@ void SdExportTest::testTransparenText()
     xShell->DoClose();
 }
 
+void SdExportTest::testDefaultSubscripts()
+{
+    sd::DrawDocShellRef xShell
+        = loadURL(m_directories.getURLFromSrc("/sd/qa/unit/data/tdf80194_defaultSubscripts.fodg"), FODG);
+    xShell = saveAndReload(xShell.get(), ODG);
+
+    uno::Reference<drawing::XDrawPage> xPage = getPage(0, xShell);
+    uno::Reference<drawing::XShape> xShape(xPage->getByIndex(1), uno::UNO_QUERY);
+    // Default subscripts were too large, enlarging the gap between the next line.
+    // The exact size isn't important. Was 18975, now 16604.
+    CPPUNIT_ASSERT(17000 > xShape->getSize().Height);
+
+    xShell->DoClose();
+}
+
 void SdExportTest::testTdf98477()
 {
     utl::TempFile tempFile;