Resolves: fdo#34987 skip autoheight reset if it will be set to the same value

Triggered by aa9af08b389a106fcfb53842ac7669b208a27205 which explicitly sets
rSet.Put( SdrTextAutoGrowHeightItem(FALSE) ); so there is something set on the
style which is being overwritten.

The code here resets the style to the default of "true" before going on to set
it to the explicit "false" again. In that window of time the master shapes
listen to the property change, on being set to autoheight they resize and on
being unset, they remain stuck on their autoheight calculated size.

Change-Id: I567a791b2bbbcb3a1a111633fabf509142984645
Reviewed-on: https://gerrit.libreoffice.org/5887
Reviewed-by: mhofmann <borim7@web.de>
Reviewed-by: Thorsten Behrens <thb@documentfoundation.org>
Tested-by: Thorsten Behrens <thb@documentfoundation.org>

1 files changed, 43 insertions, 2 deletions

diff --git a/xmloff/source/draw/ximpstyl.cxx b/xmloff/source/draw/ximpstyl.cxx
index e092e37807be..ea0fc4a69568 100644
--- a/xmloff/source/draw/ximpstyl.cxx
+++ b/xmloff/source/draw/ximpstyl.cxx
@@ -1261,6 +1261,43 @@ void SdXMLStylesContext::ImpSetCellStyles() const
     }
 }
 
+//Resolves: fdo#34987 if the style's auto height before and after is the same
+//then don't reset it back to the underlying default of true for the small
+//period before its going to be reset to false again. Doing this avoids the
+//master page shapes from resizing themselves due to autoheight becoming
+//enabled before having autoheight turned off again and getting stuck on that
+//autosized height
+static bool canSkipReset(const OUString &rName, const XMLPropStyleContext* pPropStyle,
+    const uno::Reference< beans::XPropertySet > &rPropSet, const UniReference < XMLPropertySetMapper >& rPrMap)
+{
+    bool bCanSkipReset = false;
+    if (pPropStyle && rName == "TextAutoGrowHeight")
+    {
+        sal_Bool bOldStyleTextAutoGrowHeight(sal_False);
+        rPropSet->getPropertyValue("TextAutoGrowHeight") >>= bOldStyleTextAutoGrowHeight;
+
+        sal_Int32 nIndexStyle = rPrMap->GetEntryIndex(XML_NAMESPACE_DRAW, "auto-grow-height", 0);
+        if (nIndexStyle != -1)
+        {
+            const ::std::vector< XMLPropertyState > &rProperties = pPropStyle->GetProperties();
+            ::std::vector< XMLPropertyState >::const_iterator property = rProperties.begin();
+            for(; property != rProperties.end(); ++property)
+            {
+                sal_Int32 nIdx = property->mnIndex;
+                if (nIdx == nIndexStyle)
+                {
+                    sal_Bool bNewStyleTextAutoGrowHeight(sal_False);
+                    property->maValue >>= bNewStyleTextAutoGrowHeight;
+                    if (bNewStyleTextAutoGrowHeight == bOldStyleTextAutoGrowHeight)
+                        bCanSkipReset = true;;
+                    break;
+                }
+            }
+        }
+    }
+    return bCanSkipReset;
+}
+
 // help function used by ImpSetGraphicStyles() and ImpSetMasterPageStyles()
 //
 void SdXMLStylesContext::ImpSetGraphicStyles( uno::Reference< container::XNameAccess >& xPageStyles,  sal_uInt16 nFamily,  const OUString& rPrefix) const
@@ -1289,6 +1326,7 @@ void SdXMLStylesContext::ImpSetGraphicStyles( uno::Reference< container::XNameAc
             if(nFamily == pStyle->GetFamily() && !pStyle->IsDefaultStyle())
             {
                 OUString aStyleName(pStyle->GetDisplayName());
+
                 if( nPrefLen )
                 {
                     sal_Int32 nStylePrefLen = aStyleName.lastIndexOf( sal_Unicode('-') ) + 1;
@@ -1298,6 +1336,8 @@ void SdXMLStylesContext::ImpSetGraphicStyles( uno::Reference< container::XNameAc
                     aStyleName = aStyleName.copy( nPrefLen );
                 }
 
+                XMLPropStyleContext* pPropStyle = dynamic_cast< XMLPropStyleContext* >(const_cast< SvXMLStyleContext* >( pStyle ) );
+
                 uno::Reference< style::XStyle > xStyle;
                 if(xPageStyles->hasByName(aStyleName))
                 {
@@ -1326,6 +1366,9 @@ void SdXMLStylesContext::ImpSetGraphicStyles( uno::Reference< container::XNameAc
                                 const OUString& rName = xPrMap->GetEntryAPIName( i );
                                 if( xPropSetInfo->hasPropertyByName( rName ) && beans::PropertyState_DIRECT_VALUE == xPropState->getPropertyState( rName ) )
                                 {
+                                    bool bCanSkipReset = canSkipReset(rName, pPropStyle, xPropSet, xPrMap);
+                                    if (bCanSkipReset)
+                                        continue;
                                     xPropState->setPropertyToDefault( rName );
                                 }
                             }
@@ -1356,9 +1399,7 @@ void SdXMLStylesContext::ImpSetGraphicStyles( uno::Reference< container::XNameAc
                 if(xStyle.is())
                 {
                     // set properties at style
-                    XMLPropStyleContext* pPropStyle = dynamic_cast< XMLPropStyleContext* >( const_cast< SvXMLStyleContext* >( pStyle ) );
                     uno::Reference< beans::XPropertySet > xPropSet(xStyle, uno::UNO_QUERY);
-
                     if(xPropSet.is() && pPropStyle)
                     {
                         pPropStyle->FillPropertySet(xPropSet);