fdo#35712 fdo#40315 fdo#40314 Autoselect trendline type

Modification of Degree or Period select trendline type
Modification of Intercept select option

Change-Id: If3a212c381061e831ee4411c8e17fbaf8ca12895
Reviewed-on: https://gerrit.libreoffice.org/6815Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Tomaž Vajngerl <quikee@gmail.com>

chart2/source/controller/dialogs/res_Trendline.cxx

@@ -61,12 +61,18 @@ TrendlineResources::TrendlineResources( Window * pParent, const SfxItemSet& rInA
     pTabPage->get(m_pFI_MovingAverage,"imageMovingAverage");
     FillValueSets();
 
-    m_pRB_Linear->SetClickHdl( LINK(this, TrendlineResources, SelectTrendLine ));
-    m_pRB_Logarithmic->SetClickHdl( LINK(this, TrendlineResources, SelectTrendLine ));
-    m_pRB_Exponential->SetClickHdl( LINK(this, TrendlineResources, SelectTrendLine ));
-    m_pRB_Power->SetClickHdl( LINK(this, TrendlineResources, SelectTrendLine ));
-    m_pRB_Polynomial->SetClickHdl( LINK(this, TrendlineResources, SelectTrendLine ));
-    m_pRB_MovingAverage->SetClickHdl( LINK(this, TrendlineResources, SelectTrendLine ));
+    Link aLink = LINK(this, TrendlineResources, SelectTrendLine );
+    m_pRB_Linear->SetClickHdl( aLink );
+    m_pRB_Logarithmic->SetClickHdl( aLink );
+    m_pRB_Exponential->SetClickHdl( aLink );
+    m_pRB_Power->SetClickHdl( aLink );
+    m_pRB_Polynomial->SetClickHdl( aLink );
+    m_pRB_MovingAverage->SetClickHdl( aLink );
+
+    aLink = LINK(this, TrendlineResources, ChangeNumericField );
+    m_pNF_Degree->SetModifyHdl( aLink );
+    m_pNF_Period->SetModifyHdl( aLink );
+    m_pNF_InterceptValue->SetModifyHdl( aLink );
 
     m_pNF_ExtrapolateForward->SetMin( SAL_MIN_INT64 );
     m_pNF_ExtrapolateForward->SetMax( SAL_MAX_INT64 );
@@ -306,6 +312,34 @@ void TrendlineResources::UpdateControlStates()
     m_pCB_ShowCorrelationCoeff->Enable(!bMovingAverage);
 }
 
+IMPL_LINK( TrendlineResources, ChangeNumericField, NumericField *, pNumericField)
+{
+    if( pNumericField == m_pNF_Degree )
+    {
+        if( !m_pRB_Polynomial->IsChecked() )
+        {
+                m_pRB_Polynomial->Check();
+                SelectTrendLine(m_pRB_Polynomial);
+        }
+    }
+    else if( pNumericField == m_pNF_Period )
+    {
+        if( !m_pRB_MovingAverage->IsChecked() )
+        {
+                m_pRB_MovingAverage->Check();
+                SelectTrendLine(m_pRB_MovingAverage);
+        }
+    }
+    else if( pNumericField == m_pNF_InterceptValue )
+    {
+        if( !m_pCB_SetIntercept->IsChecked() )
+                m_pCB_SetIntercept->Check();
+    }
+    UpdateControlStates();
+
+    return 0;
+}
+
 } //  namespace chart
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

chart2/source/controller/dialogs/res_Trendline.hxx

@@ -71,6 +71,7 @@ private:
 
     void UpdateControlStates();
     DECL_LINK( SelectTrendLine, RadioButton * );
+    DECL_LINK( ChangeNumericField, NumericField *);
 };
 
 } //  namespace chart