always add a UI graphic preview, corrected diag mirror in bitmap pattern

(cherry picked from commit 36a85740)

Conflicts:
	cui/source/tabpages/tpbitmap.cxx
	cui/source/tabpages/tpcolor.cxx
	cui/source/tabpages/tpgradnt.cxx
	cui/source/tabpages/tplnedef.cxx
	cui/source/tabpages/tplneend.cxx
	svx/inc/svx/dlgctrl.hxx
	svx/inc/svx/xtable.hxx
	svx/source/dialog/dlgctrl.cxx
	svx/source/xoutdev/xtabbtmp.cxx
	svx/source/xoutdev/xtabcolr.cxx
	svx/source/xoutdev/xtabdash.cxx
	svx/source/xoutdev/xtabgrdt.cxx
	svx/source/xoutdev/xtabhtch.cxx
	svx/source/xoutdev/xtable.cxx
	svx/source/xoutdev/xtablend.cxx

Change-Id: Iff0744061b76d8c608e285f81bcc8e76edeb6a69