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use context graph for finding contexts

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git-svn-id: svn://10.0.0.236/trunk@2303 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
peterl
1998-05-26 23:14:56 +00:00
parent 9050d134bb
commit ef76e4aa4a
3 changed files with 57 additions and 6 deletions
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21
mozilla/layout/base/src/nsStyleSet.cpp
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@@ -469,14 +469,16 @@ nsIStyleContext* StyleSetImpl::GetContext(nsIPresContext* aPresContext, nsIFrame
(0 == aParentContext->GetStyleRuleCount())) {
// this and parent are empty
result = aParentContext;
NS_ADDREF(result); // add ref for the caller
//fprintf(stdout, ".");
}
else {
#if USE_CONTEXT_HASH
// check for cached ruleSet to context or create
ContextKey tempKey(aParentContext, aRules);
result = (nsIStyleContext*)mStyleContexts.Get(&tempKey);
if (nsnull == result) {
if (NS_OK == NS_NewStyleContext(&result, aRules, aPresContext, aParentFrame)) {
if (NS_OK == NS_NewStyleContext(&result, aParentContext, aRules, aPresContext)) {
tempKey.SetContext(result);
mStyleContexts.Put(&tempKey, result); // hashtable clones key, so this is OK (table gets first ref)
//fprintf(stdout, "+");
@@ -485,8 +487,23 @@ nsIStyleContext* StyleSetImpl::GetContext(nsIPresContext* aPresContext, nsIFrame
else {
//fprintf(stdout, "-");
}
NS_ADDREF(result); // add ref for the caller
#else
if (nsnull != aParentContext) {
result = aParentContext->FindChildWithRules(aRules);
}
else {
result = nsnull;
}
if (nsnull == result) {
NS_NewStyleContext(&result, aParentContext, aRules, aPresContext);
//fprintf(stdout, "+");
}
else {
//fprintf(stdout, "-");
}
#endif
}
NS_ADDREF(result); // add ref for the caller
return result;
}