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Bug 77942. Make font cache promote last hit to the front of the cache; only retrieve lang-atom if fonts are equal. r=dbaron, sr=hyatt

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waterson%netscape.com 2001-05-06 00:13:50 +00:00
parent 8537458995
commit 1a8ee3a219
1 changed files with 16 additions and 8 deletions
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24
gfx/src/nsDeviceContext.cpp
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@ -715,16 +715,24 @@ nsresult nsFontCache :: GetMetricsFor(const nsFont& aFont, nsIAtom* aLangGroup,
for (PRInt32 cnt = 0; cnt < n; cnt++)
{
aMetrics = (nsIFontMetrics*) mFontMetrics.ElementAt(cnt);
nsIFontMetrics* metrics = NS_STATIC_CAST(nsIFontMetrics*, mFontMetrics[cnt]);
const nsFont* font;
aMetrics->GetFont(font);
nsCOMPtr<nsIAtom> langGroup;
aMetrics->GetLangGroup(getter_AddRefs(langGroup));
if (aFont.Equals(*font) && (aLangGroup == langGroup.get()))
{
NS_ADDREF(aMetrics);
return NS_OK;
metrics->GetFont(font);
if (aFont.Equals(*font)) {
nsCOMPtr<nsIAtom> langGroup;
metrics->GetLangGroup(getter_AddRefs(langGroup));
if (aLangGroup == langGroup.get()) {
if (cnt != 0) {
// promote it to the front of the cache
for (PRInt32 i = cnt; i > 0; --i)
mFontMetrics.ReplaceElementAt(mFontMetrics[i - 1], i);
mFontMetrics.ReplaceElementAt(metrics, 0);
}
NS_ADDREF(aMetrics = metrics);
return NS_OK;
}
}
}