add minLength and maxLength support to databars

Change-Id: Idbbc4b64b616ead6ef880340064623b9a5c0ff51

sc/inc/colorscale.hxx

@@ -101,6 +101,8 @@ struct SC_DLLPUBLIC ScDataBarFormatData
         mbGradient(true),
         mbNeg(true),
         meAxisPosition(databar::AUTOMATIC),
+        mnMinLength(0),
+        mnMaxLength(100),
         mbOnlyBar(false){}
 
     ScDataBarFormatData(const ScDataBarFormatData& r):
@@ -109,6 +111,8 @@ struct SC_DLLPUBLIC ScDataBarFormatData
         mbGradient(r.mbGradient),
         mbNeg(r.mbNeg),
         meAxisPosition(r.meAxisPosition),
+        mnMinLength(r.mnMinLength),
+        mnMaxLength(r.mnMaxLength),
         mbOnlyBar(r.mbOnlyBar)
     {
         if(r.mpNegativeColor)
@@ -157,6 +161,16 @@ struct SC_DLLPUBLIC ScDataBarFormatData
      * Default is false
      */
     databar::ScAxisPosition meAxisPosition;
+    /**
+     * Minimal length of a databar in percent of cell length
+     * Value has to be in the range [0, 100)
+     */
+    double mnMinLength;
+    /**
+     * Maximal length of a databar in percent of cell length
+     * Value has to be in the range (0, 100]
+     */
+    double mnMaxLength;
 
     /**
      * If TRUE we only show the bar and not the value

sc/source/core/data/colorscale.cxx

@@ -838,6 +838,8 @@ ScDataBarInfo* ScDataBarFormat::GetDataBarInfo(const ScAddress& rAddr) const
     double nValMax = getMaxValue();
     double nMin = getMin(nValMin, nValMax);
     double nMax = getMax(nValMin, nValMax);
+    double nMinLength = mpFormatData->mnMinLength;
+    double nMaxLength = mpFormatData->mnMaxLength;
 
     double nValue = mpDoc->GetValue(rAddr);
 
@@ -846,16 +848,16 @@ ScDataBarInfo* ScDataBarFormat::GetDataBarInfo(const ScAddress& rAddr) const
     {
         if(nValue <= nMin)
         {
-            pInfo->mnLength = 0;
+            pInfo->mnLength = nMinLength;
         }
         else if(nValue >= nMax)
         {
-            pInfo->mnLength = 100;
+            pInfo->mnLength = nMaxLength;
         }
         else
         {
             double nDiff = nMax - nMin;
-            pInfo->mnLength = (nValue - nMin)/nDiff*100.0;
+            pInfo->mnLength = nMinLength + (nValue - nMin)/nDiff * (nMaxLength-nMinLength);
         }
         pInfo->mnZero = 0;
     }

sc/source/filter/excel/xecontent.cxx

@@ -1300,6 +1300,8 @@ void XclExpDataBar::SaveXml( XclExpXmlStream& rStrm )
 
     rWorksheet->startElement( XML_dataBar,
                                 XML_showValue, OString::number(!mrFormat.GetDataBarData()->mbOnlyBar),
+                                XML_minLength, OString::number(sal_uInt32(mrFormat.GetDataBarData()->mnMinLength)),
+                                XML_maxLength, OString::number(sal_uInt32(mrFormat.GetDataBarData()->mnMaxLength)),
             FSEND );
 
     mpCfvoLowerLimit->SaveXml(rStrm);

sc/source/filter/oox/condformatbuffer.cxx

@@ -273,6 +273,8 @@ void DataBarRule::importCfvo( const AttributeList& rAttribs )
 void DataBarRule::importAttribs( const AttributeList& rAttribs )
 {
     mxFormat->mbOnlyBar = !rAttribs.getBool( XML_showValue, true );
+    mxFormat->mnMinLength = rAttribs.getUnsigned( XML_minLength, 10);
+    mxFormat->mnMaxLength = rAttribs.getUnsigned( XML_maxLength, 90);
 }
 
 void DataBarRule::SetData( ScDataBarFormat* pFormat, ScDocument* pDoc, const ScAddress& rAddr )