Data members to enums

After 1d852b32 these data members
were initialized only in constructor and never changed afterwards,
behaving de-facto as constants.
Convert them to an enum and take the chance to change their type
from sal_uIntPtr to size_t.

Change-Id: Ief33b7d3cfd3e181837f77c5b8a51812e314121d

include/svx/svddrgv.hxx

@@ -30,6 +30,12 @@ class SVX_DLLPUBLIC SdrDragView: public SdrExchangeView
     friend class                SdrPageView;
     friend class                SdrDragMethod;
 
+    // See GetDragXorPolyLimit/GetDragXorPointLimit
+    enum : size_t {
+        eDragXorPolyLimit = 100,
+        eDragXorPointLimit = 500
+    };
+
 protected:
     SdrHdl*                     mpDragHdl;
     SdrDragMethod*              mpCurrentSdrDragMethod;
@@ -38,9 +44,6 @@ protected:
     OUString                    maInsPointUndoStr;
     SdrHdlKind                  meDragHdl;
 
-    sal_uIntPtr                 mnDragXorPolyLimit;
-    sal_uIntPtr                 mnDragXorPointLimit;
-
     bool                        mbFramDrag : 1;        // currently frame dragging
     bool                        mbMarkedHitMovesAlways : 1; // Persistent
     bool                        mbDragLimit : 1;      // Limit on SnapRect instead of BoundRect
@@ -150,14 +153,13 @@ public:
     // If the number of selected objects exceeds the value set here,
     // NoDragPolys is (temporarily) activated implicitly.
     // PolyPolygons etc. are regarded as multiple objects respectively.
-    // Default=100
-    sal_uIntPtr GetDragXorPolyLimit() const { return mnDragXorPolyLimit; }
+    size_t GetDragXorPolyLimit() const { return eDragXorPolyLimit; }
 
     // Like DragXorPolyLimit, but in respect to the total number of
-    // all polygons. Default=500.
+    // all polygons.
     // NoDragPolys is (temporarily) activated, if one of the limits
     // is exceeded.
-    sal_uIntPtr GetDragXorPointLimit() const { return mnDragXorPointLimit; }
+    size_t GetDragXorPointLimit() const { return eDragXorPointLimit; }
 
     void SetSolidDragging(bool bOn);
     bool IsSolidDragging() const;

svx/source/svdraw/svddrgv.cxx

@@ -63,8 +63,6 @@ void SdrDragView::ImpClearVars()
     mbInsGluePoint=false;
     mbInsObjPointMode=false;
     mbInsGluePointMode=false;
-    mnDragXorPolyLimit=100;
-    mnDragXorPointLimit=500;
     mbNoDragXorPolys=false;
     mbResizeAtCenter=false;
     mbCrookAtCenter=false;