Resolves: rhbz#1255811 implement Edit modify handler

... and disable/enable Apply/Ok buttons for in/valid ranges.

Change-Id: I52b5eae2f34e3fca7c0761b14124477a0d160b01

sc/source/ui/StatisticsDialogs/RandomNumberGeneratorDialog.cxx

@@ -120,6 +120,7 @@ void ScRandomNumberGeneratorDialog::Init()
     mpInputRangeEdit->SetLoseFocusHdl ( aLink );
     mpInputRangeButton->SetLoseFocusHdl ( aLink );
 
+    mpInputRangeEdit->SetModifyHdl( LINK( this, ScRandomNumberGeneratorDialog, InputRangeModified ));
     mpParameter1Value->SetModifyHdl( LINK( this, ScRandomNumberGeneratorDialog, Parameter1ValueModified ));
     mpParameter2Value->SetModifyHdl( LINK( this, ScRandomNumberGeneratorDialog, Parameter2ValueModified ));
 
@@ -170,11 +171,17 @@ void ScRandomNumberGeneratorDialog::SetReference( const ScRange& rReferenceRange
 
         OUString aReferenceString(maInputRange.Format(SCR_ABS_3D, pDoc, pDoc->GetAddressConvention()));
         mpInputRangeEdit->SetRefString( aReferenceString );
+
+        mpButtonApply->Enable();
+        mpButtonOk->Enable();
     }
 }
 
 void ScRandomNumberGeneratorDialog::SelectGeneratorAndGenerateNumbers()
 {
+    if (!maInputRange.IsValid())
+        return;
+
     sal_Int16 aSelectedIndex = mpDistributionCombo-> GetSelectEntryPos();
     sal_Int64 aSelectedId = reinterpret_cast<sal_Int64>(mpDistributionCombo->GetEntryData(aSelectedIndex));
 
@@ -357,6 +364,28 @@ IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, LoseFocusHandler)
     return 0;
 }
 
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, InputRangeModified)
+{
+    ScRangeList aRangeList;
+    bool bValid = ParseWithNames( aRangeList, mpInputRangeEdit->GetText(), mpDoc);
+    const ScRange* pRange = (bValid && aRangeList.size() == 1) ? aRangeList[0] : nullptr;
+    if (pRange)
+    {
+        maInputRange = *pRange;
+        mpButtonApply->Enable();
+        mpButtonOk->Enable();
+        // Highlight the resulting range.
+        mpInputRangeEdit->StartUpdateData();
+    }
+    else
+    {
+        maInputRange = ScRange( ScAddress::INITIALIZE_INVALID);
+        mpButtonApply->Disable();
+        mpButtonOk->Disable();
+    }
+    return 0;
+}
+
 IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, Parameter1ValueModified)
 {
     sal_Int16 aSelectedIndex = mpDistributionCombo-> GetSelectEntryPos();

sc/source/ui/inc/RandomNumberGeneratorDialog.hxx

@@ -76,6 +76,7 @@ private:
     DECL_LINK( GetFocusHandler,  Control* );
     DECL_LINK( LoseFocusHandler, void* );
 
+    DECL_LINK( InputRangeModified, void* );
     DECL_LINK( Parameter1ValueModified, void* );
     DECL_LINK( Parameter2ValueModified, void* );
     DECL_LINK( DistributionChanged, void* );