fdo#35712 polynomial and moving average regression lines

- added polynomial and moving average to the dialog
- implemented moving average and polynomal RegressionCurveCalculator
- added icon for polynomial regression curve
- prepare icon for moving average regression curve
- degree parameter for polynomial regression curve
- period parameter for moving average regression curve
- limit the curve to max and min x value
- added extrapolation

Change-Id: I4ebb8dc23a3aff285b999e115fdda20ab11910a5

2 files changed, 10 insertions, 4 deletions

diff --git a/offapi/com/sun/star/chart/ChartRegressionCurveType.idl b/offapi/com/sun/star/chart/ChartRegressionCurveType.idl
index d4615acc0127..61aaf6580542 100644
--- a/offapi/com/sun/star/chart/ChartRegressionCurveType.idl
+++ b/offapi/com/sun/star/chart/ChartRegressionCurveType.idl
@@ -60,12 +60,9 @@ published enum ChartRegressionCurveType
 
 
     /** displays a polynomial regression curve.
-
-        @deprecated
     */
     POLYNOMIAL,
 
-
     /** displays a regression curve using a power function.
 
         <p>The values of the series are approximated using the model
@@ -73,6 +70,10 @@ published enum ChartRegressionCurveType
      */
     POWER
 
+    /** displays a moving average regression curve.
+    */
+    //MOVING_AVERAGE
+
 };
 
 
diff --git a/offapi/com/sun/star/chart2/XRegressionCurveCalculator.idl b/offapi/com/sun/star/chart2/XRegressionCurveCalculator.idl
index f7c22ce57eaa..ac62c62c59e5 100644
--- a/offapi/com/sun/star/chart2/XRegressionCurveCalculator.idl
+++ b/offapi/com/sun/star/chart2/XRegressionCurveCalculator.idl
@@ -36,6 +36,11 @@ module chart2
 
 interface XRegressionCurveCalculator : com::sun::star::uno::XInterface
 {
+
+    void setRegressionProperties( [in] long degree,
+                                  [in] double intercept,
+                                  [in] long period);
+
     /** recalculates the parameters of the internal regression curve according to
         the <i>x</i>- and <i>y</i>-values given.
 
@@ -48,7 +53,7 @@ interface XRegressionCurveCalculator : com::sun::star::uno::XInterface
             which the regression is based
     */
     void recalculateRegression( [in] sequence< double > aXValues,
-                                [in] sequence< double > aYValues );
+                                [in] sequence< double > aYValues);
 
 
     /** calculates the value of the regression curve for <i>x</i>.