fdo#38545: Show/hide anchor when the anchoring status changes.

Setting a page-anchored object to cell-anchored didn't show the anchor
immediately until you unselect the object and re-select it.  Same for
the cell-anchored to page-anchored direction.

This commit fixes it.

sc/source/ui/view/drawvie3.cxx

@@ -87,6 +87,10 @@ void ScDrawView::SetPageAnchored()
 
         if ( pViewData )
             pViewData->GetDocShell()->SetDrawModified();
+
+        // Remove the anchor object.
+        aHdl.RemoveAllByKind(HDL_ANCHOR);
+        aHdl.RemoveAllByKind(HDL_ANCHOR_TR);
     }
 }
 
@@ -108,6 +112,9 @@ void ScDrawView::SetCellAnchored()
 
         if ( pViewData )
             pViewData->GetDocShell()->SetDrawModified();
+
+        // Set the anchor object.
+        AddCustomHdl();
     }
 }
 

svx/inc/svx/svdhdl.hxx

@@ -502,6 +502,7 @@ public:
     // also auf dem Heap stehen, da Clear() ein delete macht.
     void    AddHdl(SdrHdl* pHdl, sal_Bool bAtBegin=sal_False);
     SdrHdl* RemoveHdl(sal_uIntPtr nNum);
+    void RemoveAllByKind(SdrHdlKind eKind);
 
     // Zuletzt eingefuegte Handles werden am ehesten getroffen
     // (wenn Handles uebereinander liegen).

svx/source/svdraw/svdhdl.cxx

@@ -2081,6 +2081,26 @@ SdrHdl* SdrHdlList::RemoveHdl(sal_uIntPtr nNum)
     return pRetval;
 }
 
+void SdrHdlList::RemoveAllByKind(SdrHdlKind eKind)
+{
+    SdrHdl* p = static_cast<SdrHdl*>(aList.Last());
+    while (p)
+    {
+        if (p->GetKind() == eKind)
+        {
+            // If removing an item doesn't invalidate the current position,
+            // then perhaps it's safe to keep calling Prev here.  But then I'm
+            // too lazy to find out & this Container needs to be replaced by
+            // STL anyways... :-P
+            aList.Remove(p);
+            delete p;
+            p = static_cast<SdrHdl*>(aList.Last()); // start from the back again.
+        }
+        else
+            p = static_cast<SdrHdl*>(aList.Prev());
+    }
+}
+
 void SdrHdlList::Clear()
 {
     for (sal_uIntPtr i=0; i<GetHdlCount(); i++)