loplugin:useuniqueptr in RectCtl

Change-Id: I8d0e4decdd607479e9cc9491d6dae769622a6c26
Reviewed-on: https://gerrit.libreoffice.org/55230Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/svx/dlgctrl.hxx

@@ -165,7 +165,7 @@ protected:
     Point aPtLB, aPtMB, aPtRB;
     Point aPtNew;
     RectPoint eRP, eDefRP;
-    BitmapEx* pBitmap;
+    std::unique_ptr<BitmapEx> pBitmap;
     CTL_STATE m_nState;
 
     bool mbCompleteDisable : 1;

svx/source/dialog/dlgctrl.cxx

@@ -650,8 +650,7 @@ void RectCtl::SetControlSettings(RectPoint eRpt, sal_uInt16 nBorder)
 
 RectCtl::~RectCtl()
 {
-    delete pBitmap;
-
+    pBitmap.reset();
     pAccContext.clear();
 }
 
@@ -682,12 +681,12 @@ void RectCtl::Resize_Impl()
 
 void RectCtl::InitRectBitmap()
 {
-    delete pBitmap;
+    pBitmap.reset();
 
     const StyleSettings& rStyles = Application::GetSettings().GetStyleSettings();
     svtools::ColorConfig aColorConfig;
 
-    pBitmap = new BitmapEx(RID_SVXCTRL_RECTBTNS);
+    pBitmap.reset(new BitmapEx(RID_SVXCTRL_RECTBTNS));
 
     // set bitmap-colors
     Color aColorAry1[7];
@@ -729,8 +728,7 @@ void RectCtl::InitRectBitmap()
 
 void RectCtl::StyleUpdated()
 {
-    delete pBitmap;
-    pBitmap = nullptr; // forces new creating of bitmap
+    pBitmap.reset(); // forces new creating of bitmap
     CustomWidgetController::StyleUpdated();
 }