loplugin:useuniqueptr in SvxLineStyleToolBoxControl

Change-Id: I83e1536a1d45fffbf4fc5ddb611e382568ebf26c
Reviewed-on: https://gerrit.libreoffice.org/49934Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/svx/linectrl.hxx

@@ -25,6 +25,7 @@
 #include <sfx2/tbxctrl.hxx>
 #include <svx/svxdllapi.h>
 #include <svx/xtable.hxx>
+#include <memory>
 
 class XLineStyleItem;
 class XLineDashItem;
@@ -38,8 +39,8 @@ class SvxMetricField;
 class SVX_DLLPUBLIC SvxLineStyleToolBoxControl : public SfxToolBoxControl
 {
 private:
-    XLineStyleItem*     pStyleItem;
-    XLineDashItem*      pDashItem;
+    std::unique_ptr<XLineStyleItem>  pStyleItem;
+    std::unique_ptr<XLineDashItem>   pDashItem;
 
     bool                bUpdate;
 

svx/source/tbxctrls/linectrl.cxx

@@ -69,8 +69,6 @@ SvxLineStyleToolBoxControl::SvxLineStyleToolBoxControl( sal_uInt16 nSlotId,
 
 SvxLineStyleToolBoxControl::~SvxLineStyleToolBoxControl()
 {
-    delete pStyleItem;
-    delete pDashItem;
 }
 
 
@@ -95,13 +93,11 @@ void SvxLineStyleToolBoxControl::StateChanged (
         {
             if( nSID == SID_ATTR_LINE_STYLE )
             {
-                delete pStyleItem;
-                pStyleItem = static_cast<XLineStyleItem*>(pState->Clone());
+                pStyleItem.reset( static_cast<XLineStyleItem*>(pState->Clone()) );
             }
             else if( nSID == SID_ATTR_LINE_DASH )
             {
-                delete pDashItem;
-                pDashItem = static_cast<XLineDashItem*>(pState->Clone());
+                pDashItem.reset( static_cast<XLineDashItem*>(pState->Clone()) );
             }
 
             bUpdate = true;