implement databars in the core

We currently only support either a databar or a color scale at an area.
This limitation will be removed in 3.7

Change-Id: I6236729822db891203479dff8554466706b4c6a8

6 files changed, 208 insertions, 10 deletions

diff --git a/sc/inc/colorscale.hxx b/sc/inc/colorscale.hxx
index 2596953d3c27..317a27d721a1 100644
--- a/sc/inc/colorscale.hxx
+++ b/sc/inc/colorscale.hxx
@@ -39,12 +39,6 @@ class ScFormulaCell;
 class ScTokenArray;
 class ScDataBarInfo;
 
-struct ScDataBarFormatData
-{
-    Color maPositiveColor;
-    bool mbGradient;
-};
-
 class SC_DLLPUBLIC ScColorScaleEntry
 {
 private:
@@ -78,6 +72,50 @@ public:
     void SetPercent(bool bPercent);
 };
 
+struct ScDataBarFormatData
+{
+    ScDataBarFormatData():
+        mbGradient(true),
+        mbNeg(true),
+        mbSameDirection(false) {}
+
+    /**
+     * Color for all Positive Values and if mbNeg == false also for negative ones
+     */
+    Color maPositiveColor;
+    /**
+     * Specifies the color for negative values. This is optional and depends on mbNeg.
+     *
+     * Default color is 0xFF0000, this value is not set
+     */
+    boost::scoped_ptr<Color> mpNegativeColor;
+    /**
+     * Paint the bars with gradient. If this is used the default is to draw with
+     * borders.
+     *
+     * Default is true
+     */
+    bool mbGradient;
+    /**
+     * Use different color for negative values. Color is specified in
+     * mpNegativeColor and defaults to 0xFF0000
+     *
+     * Default is true
+     */
+    bool mbNeg; //differentiate between negative values
+    /**
+     * Paint negative values into the same direction as positive values
+     * If false we will set the mid point according to the upper and lower limit and negative
+     * values are painted to the left and positive to the right
+     *
+     * Default is false
+     */
+    bool mbSameDirection;
+
+    boost::scoped_ptr<ScColorScaleEntry> mpUpperLimit;
+    boost::scoped_ptr<ScColorScaleEntry> mpLowerLimit;
+};
+
 enum ScColorFormatType
 {
     COLORSCALE,
@@ -147,9 +185,12 @@ class SC_DLLPUBLIC ScDataBarFormat : public ScColorFormat
 public:
     ScDataBarFormat(ScDocument* pDoc);
     ScDataBarFormat(ScDocument* pDoc, const ScDataBarFormat& rFormat);
+    virtual ScColorFormat* Clone(ScDocument* pDoc = NULL) const;
 
     ScDataBarInfo* GetDataBarInfo(const ScAddress& rAddr) const;
 
+    void SetDataBarData( ScDataBarFormatData* pData );
+
     virtual void DataChanged(const ScRange& rRange);
     virtual void UpdateMoveTab(SCTAB nOldTab, SCTAB nNewTab);
     virtual void UpdateReference( UpdateRefMode eUpdateRefMode,
@@ -157,7 +198,7 @@ public:
 
     virtual ScColorFormatType GetType() const;
 private:
-    ScDataBarFormatData maFormatData;
+    boost::scoped_ptr<ScDataBarFormatData> mpFormatData;
 };
 
 class SC_DLLPUBLIC ScColorFormatList
diff --git a/sc/inc/document.hxx b/sc/inc/document.hxx
index 7e14a5cfd4e0..ed8eb3bbc3ee 100644
--- a/sc/inc/document.hxx
+++ b/sc/inc/document.hxx
@@ -96,7 +96,7 @@ class ScChartCollection;
 class ScChartListenerCollection;
 class ScConditionalFormat;
 class ScConditionalFormatList;
-class ScColorScaleFormat;
+class ScColorFormat;
 class ScColorFormatList;
 class ScDBCollection;
 class ScDBData;
@@ -1199,7 +1199,7 @@ public:
     void            ChangeSelectionIndent( bool bIncrement, const ScMarkData& rMark );
 
     SC_DLLPUBLIC sal_uLong          AddCondFormat( const ScConditionalFormat& rNew );
-    SC_DLLPUBLIC sal_uLong          AddColorScaleFormat( ScColorScaleFormat* pNew );
+    SC_DLLPUBLIC sal_uLong          AddColorFormat( ScColorFormat* pNew );
     SC_DLLPUBLIC void           FindConditionalFormat( sal_uLong nKey, ScRangeList& rRanges );
     SC_DLLPUBLIC void           FindConditionalFormat( sal_uLong nKey, ScRangeList& rRanges, SCTAB nTab );
     void            ConditionalChanged( sal_uLong nKey );
diff --git a/sc/inc/fillinfo.hxx b/sc/inc/fillinfo.hxx
index 5aecd510d3bc..c2fa4a774e69 100644
--- a/sc/inc/fillinfo.hxx
+++ b/sc/inc/fillinfo.hxx
@@ -68,6 +68,25 @@ struct ScDataBarInfo
     Color maColor;
     double mnLength; // -100 to 100
     bool mbGradient;
+
+    bool operator==(const ScDataBarInfo& r) const
+    {
+        if( mnZero != r.mnZero )
+            return false;
+        if( maColor != r.maColor )
+            return false;
+        if(mnLength != r.mnLength)
+            return false;
+        if (mbGradient != r.mbGradient)
+            return false;
+
+        return true;
+    }
+
+    bool operator!=(const ScDataBarInfo& r) const
+    {
+        return !(*this == r);
+    }
 };
 
 struct CellInfo
diff --git a/sc/source/core/data/colorscale.cxx b/sc/source/core/data/colorscale.cxx
index 1892a7562be8..501a094eca03 100644
--- a/sc/source/core/data/colorscale.cxx
+++ b/sc/source/core/data/colorscale.cxx
@@ -29,6 +29,7 @@
 #include "colorscale.hxx"
 #include "document.hxx"
 #include "cell.hxx"
+#include "fillinfo.hxx"
 
 ScColorScaleEntry::ScColorScaleEntry(double nVal, const Color& rCol):
     mnVal(nVal),
@@ -532,6 +533,135 @@ ScColorScaleFormat::const_iterator ScColorScaleFormat::end() const
     return maColorScales.end();
 }
 
+ScDataBarFormat::ScDataBarFormat(ScDocument* pDoc):
+    ScColorFormat(pDoc)
+{
+}
+
+ScDataBarFormat::ScDataBarFormat(ScDocument* pDoc, const ScDataBarFormat& rFormat):
+    ScColorFormat(pDoc, rFormat)
+{
+}
+
+void ScDataBarFormat::SetDataBarData( ScDataBarFormatData* pData )
+{
+    mpFormatData.reset(pData);
+}
+
+ScColorFormat* ScDataBarFormat::Clone(ScDocument* pDoc) const
+{
+    return new ScDataBarFormat(pDoc, *this);
+}
+
+ScColorFormatType ScDataBarFormat::GetType() const
+{
+    return DATABAR;
+}
+
+void ScDataBarFormat::UpdateReference( UpdateRefMode ,
+            const ScRange& , SCsCOL , SCsROW , SCsTAB  )
+{
+}
+
+void ScDataBarFormat::DataChanged(const ScRange& )
+{
+
+}
+
+void ScDataBarFormat::UpdateMoveTab(SCTAB , SCTAB )
+{
+}
+
+ScDataBarInfo* ScDataBarFormat::GetDataBarInfo(const ScAddress& rAddr) const
+{
+    CellType eCellType = mpDoc->GetCellType(rAddr);
+    if(eCellType != CELLTYPE_VALUE && eCellType != CELLTYPE_FORMULA)
+        return NULL;
+
+    if (eCellType == CELLTYPE_FORMULA)
+    {
+        if(!static_cast<ScFormulaCell*>(mpDoc->GetCell(rAddr))->IsValue())
+            return NULL;
+    }
+
+    // now we have for sure a value
+    //
+    double nMin = -2;
+    double nMax = 10;
+
+    double nValue = mpDoc->GetValue(rAddr);
+
+    ScDataBarInfo* pInfo = new ScDataBarInfo();
+    if(mpFormatData->mbSameDirection || nMin > 0)
+    {
+        if(nValue <= nMin)
+        {
+            pInfo->mnLength = 0;
+        }
+        else if(nValue >= nMax)
+        {
+            pInfo->mnLength = 100;
+        }
+        else
+        {
+            double nDiff = nMax - nMin;
+            pInfo->mnLength = (nValue - nMin)/nDiff*100.0;
+        }
+        pInfo->mnZero = 0;
+    }
+    else
+    {
+        //calculate the zero position first
+        if(nMin < 0)
+        {
+            if(nMax < 0)
+                pInfo->mnZero = 100;
+            else
+            {
+                pInfo->mnZero = -100*nMin/(nMax-nMin);
+            }
+        }
+
+        //calculate the length
+        if(nValue < 0)
+        {
+            if (nValue < nMin)
+                pInfo->mnLength = -100;
+            else
+                pInfo->mnLength = -100 * nValue/nMin;
+        }
+        else
+        {
+            if ( nValue > nMax )
+                pInfo->mnLength = 100;
+            else
+                pInfo->mnLength = nValue/nMax*100;
+        }
+    }
+
+
+    // set color
+    if(mpFormatData->mbNeg && nValue < 0)
+    {
+        if(mpFormatData->mpNegativeColor)
+        {
+            pInfo->maColor = *mpFormatData->mpNegativeColor.get();
+        }
+        else
+        {
+            // default negative color is red
+            pInfo->maColor = COL_RED;
+        }
+
+    }
+    else
+        pInfo->maColor = mpFormatData->maPositiveColor;
+
+    return pInfo;
+}
+
+//-----------------------------------------------------------------
+
 ScColorFormatList::ScColorFormatList(ScDocument* pDoc, const ScColorFormatList& rList)
 {
     for(const_iterator itr = rList.begin(); itr != rList.end(); ++itr)
diff --git a/sc/source/core/data/documen4.cxx b/sc/source/core/data/documen4.cxx
index 76d3773c2b8b..6ec09a3ee69b 100644
--- a/sc/source/core/data/documen4.cxx
+++ b/sc/source/core/data/documen4.cxx
@@ -640,7 +640,7 @@ ScColorFormatList* ScDocument::GetColorScaleList()
 
 //takes ownership
 // returns a 1-based index, 0 is reserved for no entry
-sal_uLong ScDocument::AddColorScaleFormat( ScColorScaleFormat* pNew )
+sal_uLong ScDocument::AddColorFormat( ScColorFormat* pNew )
 {
     if(!pNew)
         return 0;
diff --git a/sc/source/core/data/fillinfo.cxx b/sc/source/core/data/fillinfo.cxx
index 4b227b0720a2..7e5c050cc176 100644
--- a/sc/source/core/data/fillinfo.cxx
+++ b/sc/source/core/data/fillinfo.cxx
@@ -488,11 +488,14 @@ void ScDocument::FillInfo( ScTableInfo& rTabInfo, SCCOL nX1, SCROW nY1, SCCOL nX
                             pCondForm = pCondFormList->GetFormat( nConditional );
 
                         const ScColorScaleFormat* pColorScale = NULL;
+                        const ScDataBarFormat* pDataBar = NULL;
                         if ( nColorScale && mpColorScaleList )
                         {
                             ScColorFormat* pFormat = mpColorScaleList->GetFormat( nColorScale );
                             if(pFormat->GetType() == COLORSCALE)
                                 pColorScale = static_cast<ScColorScaleFormat*>(pFormat);
+                            else if(pFormat->GetType() == DATABAR)
+                                pDataBar = static_cast<ScDataBarFormat*>(pFormat);
                         }
 
                         do
@@ -574,6 +577,11 @@ void ScDocument::FillInfo( ScTableInfo& rTabInfo, SCCOL nX1, SCROW nY1, SCCOL nX
                                     Color* pColor = pColorScale->GetColor( ScAddress( nX, nCurRow, nTab ) );
                                     pInfo->pColorScale = pColor;
                                 }
+                                if( pDataBar )
+                                {
+                                    ScDataBarInfo* pDataBarInfo = pDataBar->GetDataBarInfo( ScAddress( nX, nCurRow, nTab ) );
+                                    pInfo->pDataBar = pDataBarInfo;
+                                }
 
                                 ++nArrY;
                             }