ITEM: Speedup SlotIDToWhichID translations

With ItemInfoPackages we now can have a buffered, static
global translation table from SlotIDs to WhichIDs since
the ItemInfoStatic used already contains all the needed
information.
Register that in registerItemInfoPackage at the Pool and
use it for lookup. That speeds up the lookup from O(n)
to O(1). Since that lookup is used in UI and UNO API
implementations this has positive effect on load/safe,
but also all interactive stuff in the whole office.

NOTE: I tried to use a merged version of that translation
table in the parent pool, but this shows double SlotIDs,
what is no wonder since that's what those are used for:
To get different WhichIDs for a SlotID in Item handling.
This *might* prevent getting rid of the chanined Pools
at all - sadly. The returned WhichID directly depends
on which Pool the function(s) GetWhichIDFromSlotID and
GetTrueWhichIDFromSlotID are called.

NOTE: Very strange is that the parameter 'bDeep' in that
functions is *not* passed down to the call to the
secondary Pool - probably an error, but risky to fix,
that may change already the behaviour :-(

Change-Id: Iea77ffad0f6a5401ab74fea0bbfc2589c66680ea
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163597
Tested-by: Jenkins
Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/sfx2/source/explorer/nochaos.cxx b/sfx2/source/explorer/nochaos.cxx
index 3fb582a3d43d..ebed6cc8e17e 100644
--- a/sfx2/source/explorer/nochaos.cxx
+++ b/sfx2/source/explorer/nochaos.cxx
@@ -73,6 +73,8 @@ static ItemInfoPackage& getItemInfoPackageNoChaos()
             { WID_CHAOS_START, new SfxStringItem(WID_CHAOS_START, OUString()), 0, SFX_ITEMINFOFLAG_NONE }
         }};
 
+        virtual const ItemInfoStatic& getItemInfoStatic(size_t nIndex) const override { return maItemInfos[nIndex]; }
+
     public:
         virtual size_t size() const override { return maItemInfos.size(); }
         virtual const ItemInfo& getItemInfo(size_t nIndex, SfxItemPool& /*rPool*/) override { return maItemInfos[nIndex]; }