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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gfxFontFeatures.h"
#include "nsUnicharUtils.h"
#include "nsHashKeys.h"
using namespace mozilla;
gfxFontFeatureValueSet::gfxFontFeatureValueSet()
: mFontFeatureValues(8)
{
}
bool
gfxFontFeatureValueSet::GetFontFeatureValuesFor(const nsAString& aFamily,
uint32_t aVariantProperty,
const nsAString& aName,
nsTArray<uint32_t>& aValues)
{
nsAutoString family(aFamily), name(aName);
ToLowerCase(family);
ToLowerCase(name);
FeatureValueHashKey key(family, aVariantProperty, name);
aValues.Clear();
FeatureValueHashEntry *entry = mFontFeatureValues.GetEntry(key);
if (entry) {
NS_ASSERTION(entry->mValues.Length() > 0,
"null array of font feature values");
aValues.AppendElements(entry->mValues);
return true;
}
return false;
}
void
gfxFontFeatureValueSet::AddFontFeatureValues(const nsAString& aFamily,
const nsTArray<gfxFontFeatureValueSet::FeatureValues>& aValues)
{
nsAutoString family(aFamily);
ToLowerCase(family);
uint32_t i, numFeatureValues = aValues.Length();
for (i = 0; i < numFeatureValues; i++) {
const FeatureValues& fv = aValues.ElementAt(i);
uint32_t alternate = fv.alternate;
uint32_t j, numValues = fv.valuelist.Length();
for (j = 0; j < numValues; j++) {
const ValueList& v = fv.valuelist.ElementAt(j);
nsAutoString name(v.name);
ToLowerCase(name);
FeatureValueHashKey key(family, alternate, name);
FeatureValueHashEntry *entry = mFontFeatureValues.PutEntry(key);
entry->mKey = key;
entry->mValues = v.featureSelectors;
}
}
}
bool
gfxFontFeatureValueSet::FeatureValueHashEntry::KeyEquals(
const KeyTypePointer aKey) const
{
return aKey->mPropVal == mKey.mPropVal &&
aKey->mFamily.Equals(mKey.mFamily) &&
aKey->mName.Equals(mKey.mName);
}
PLDHashNumber
gfxFontFeatureValueSet::FeatureValueHashEntry::HashKey(
const KeyTypePointer aKey)
{
return HashString(aKey->mFamily) + HashString(aKey->mName) +
aKey->mPropVal * uint32_t(0xdeadbeef);
}
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