Support icon theme change in a floating border control

was unintentionally broken by
64a2dc96

Change-Id: I3358d8104dd1e2200f84019a2c4c41f1e0019399

svx/source/tbxctrls/tbcontrl.cxx

@@ -273,6 +273,7 @@ public:
     virtual void dispose() override;
 
     virtual void    statusChanged( const css::frame::FeatureStateEvent& rEvent ) throw ( css::uno::RuntimeException ) override;
+    virtual void    DataChanged( const DataChangedEvent& rDCEvt ) override;
 };
 
 class SvxLineWindow_Impl : public svtools::ToolbarPopup
@@ -1754,6 +1755,20 @@ void SvxFrameWindow_Impl::KeyInput( const KeyEvent& rKEvt )
     aFrameSet->KeyInput( rKEvt );
 }
 
+void SvxFrameWindow_Impl::DataChanged( const DataChangedEvent& rDCEvt )
+{
+    ToolbarPopup::DataChanged( rDCEvt );
+
+    if ( ( rDCEvt.GetType() == DataChangedEventType::SETTINGS ) && ( rDCEvt.GetFlags() & AllSettingsFlags::STYLE ) )
+    {
+        InitImageList();
+
+        sal_uInt16 nNumOfItems = aFrameSet->GetItemCount();
+        for ( sal_uInt16 i = 1 ; i <= nNumOfItems ; ++i )
+            aFrameSet->SetItemImage( i, Image(aImgVec[i-1]) );
+    }
+}
+
 enum class FrmValidFlags {
     NONE      = 0x00,
     Left      = 0x01,