diff options
Diffstat (limited to 'sw/source/core/text/txtcache.cxx')
| -rw-r--r-- | sw/source/core/text/txtcache.cxx | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sw/source/core/text/txtcache.cxx b/sw/source/core/text/txtcache.cxx index b2f412b07c5b..20b992d9e275 100644 --- a/sw/source/core/text/txtcache.cxx +++ b/sw/source/core/text/txtcache.cxx @@ -21,6 +21,9 @@ #include <txtfrm.hxx> #include "porlay.hxx" +#include <sfx2/viewsh.hxx> +#include <view.hxx> + SwTextLine::SwTextLine( SwTextFrame const *pFrame, SwParaPortion *pNew ) : SwCacheObj( static_cast<void const *>(pFrame) ), pLine( pNew ) @@ -135,4 +138,37 @@ void SwTextFrame::SetPara( SwParaPortion *pNew, bool bDelete ) } } +/** Prevent the SwParaPortions of the *visible* paragraphs from being deleted; + they would just be recreated on the next paint. + + Heuristic: 100 per view are visible + + If the cache is too small, enlarge it to ensure there are sufficient free + entries for the layout so it doesn't have to throw away a node's + SwParaPortion when it starts formatting the next node. +*/ +SwSaveSetLRUOfst::SwSaveSetLRUOfst() +{ + sal_uInt16 nVisibleShells(0); + for (auto pView = SfxViewShell::GetFirst(true, checkSfxViewShell<SwView>); + pView != nullptr; + pView = SfxViewShell::GetNext(*pView, true, checkSfxViewShell<SwView>)) + { + ++nVisibleShells; + } + + sal_uInt16 const nPreserved(100 * nVisibleShells); + SwCache & rCache(*SwTextFrame::GetTextCache()); + if (rCache.GetCurMax() < nPreserved + 250) + { + rCache.IncreaseMax(nPreserved + 250 - rCache.GetCurMax()); + } + rCache.SetLRUOfst(nPreserved); +} + +SwSaveSetLRUOfst::~SwSaveSetLRUOfst() +{ + SwTextFrame::GetTextCache()->ResetLRUOfst(); +} + /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |