enable the add button in manage conditional formats

Change-Id: I82a0abf58f8fc68d0e9e145923961fa3e3c654fe

sc/source/ui/condformat/condformatmgr.cxx

@@ -181,8 +181,8 @@ ScCondFormatManagerDlg::ScCondFormatManagerDlg(Window* pParent, ScDocument* pDoc
 
     maBtnRemove.SetClickHdl(LINK(this, ScCondFormatManagerDlg, RemoveBtnHdl));
     maBtnEdit.SetClickHdl(LINK(this, ScCondFormatManagerDlg, EditBtnHdl));
+    maBtnAdd.SetClickHdl(LINK(this, ScCondFormatManagerDlg, AddBtnHdl));
     maCtrlManager.GetListControl().SetDoubleClickHdl(LINK(this, ScCondFormatManagerDlg, EditBtnHdl));
-    maBtnAdd.Hide();
 }
 
 ScCondFormatManagerDlg::~ScCondFormatManagerDlg()
@@ -233,4 +233,39 @@ IMPL_LINK_NOARG(ScCondFormatManagerDlg, EditBtnHdl)
     return 0;
 }
 
+namespace {
+
+sal_uInt32 FindKey(ScConditionalFormatList* pFormatList)
+{
+    sal_uInt32 nKey = 0;
+    for(ScConditionalFormatList::const_iterator itr = pFormatList->begin(), itrEnd = pFormatList->end();
+            itr != itrEnd; ++itr)
+    {
+        if(itr->GetKey() > nKey)
+            nKey = itr->GetKey();
+    }
+
+    return nKey + 1;
+}
+
+}
+
+IMPL_LINK_NOARG(ScCondFormatManagerDlg, AddBtnHdl)
+{
+    boost::scoped_ptr<ScCondFormatDlg> pDlg(new ScCondFormatDlg(this, mpDoc, NULL, ScRangeList(),
+                                                maPos, condformat::dialog::CONDITION));
+    if(pDlg->Execute() == RET_OK)
+    {
+        ScConditionalFormat* pNewFormat = pDlg->GetConditionalFormat();
+        mpFormatList->InsertNew(pNewFormat);
+        pNewFormat->SetKey(FindKey(mpFormatList));
+        maCtrlManager.Update();
+
+        mbModified = true;
+    }
+
+    return 0;
+}
+
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sc/source/ui/inc/condformatmgr.hxx

@@ -106,6 +106,7 @@ private:
 
     DECL_LINK(RemoveBtnHdl, void*);
     DECL_LINK(EditBtnHdl, void*);
+    DECL_LINK(AddBtnHdl, void*);
 
     bool mbModified;
 };