1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxFontFeatures.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,81 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "gfxFontFeatures.h"
1.10 +#include "nsUnicharUtils.h"
1.11 +#include "nsHashKeys.h"
1.12 +
1.13 +using namespace mozilla;
1.14 +
1.15 +gfxFontFeatureValueSet::gfxFontFeatureValueSet()
1.16 + : mFontFeatureValues(10)
1.17 +{
1.18 +}
1.19 +
1.20 +bool
1.21 +gfxFontFeatureValueSet::GetFontFeatureValuesFor(const nsAString& aFamily,
1.22 + uint32_t aVariantProperty,
1.23 + const nsAString& aName,
1.24 + nsTArray<uint32_t>& aValues)
1.25 +{
1.26 + nsAutoString family(aFamily), name(aName);
1.27 + ToLowerCase(family);
1.28 + ToLowerCase(name);
1.29 + FeatureValueHashKey key(family, aVariantProperty, name);
1.30 +
1.31 + aValues.Clear();
1.32 + FeatureValueHashEntry *entry = mFontFeatureValues.GetEntry(key);
1.33 + if (entry) {
1.34 + NS_ASSERTION(entry->mValues.Length() > 0,
1.35 + "null array of font feature values");
1.36 + aValues.AppendElements(entry->mValues);
1.37 + return true;
1.38 + }
1.39 +
1.40 + return false;
1.41 +}
1.42 +
1.43 +
1.44 +void
1.45 +gfxFontFeatureValueSet::AddFontFeatureValues(const nsAString& aFamily,
1.46 + const nsTArray<gfxFontFeatureValueSet::FeatureValues>& aValues)
1.47 +{
1.48 + nsAutoString family(aFamily);
1.49 + ToLowerCase(family);
1.50 +
1.51 + uint32_t i, numFeatureValues = aValues.Length();
1.52 + for (i = 0; i < numFeatureValues; i++) {
1.53 + const FeatureValues& fv = aValues.ElementAt(i);
1.54 + uint32_t alternate = fv.alternate;
1.55 + uint32_t j, numValues = fv.valuelist.Length();
1.56 + for (j = 0; j < numValues; j++) {
1.57 + const ValueList& v = fv.valuelist.ElementAt(j);
1.58 + nsAutoString name(v.name);
1.59 + ToLowerCase(name);
1.60 + FeatureValueHashKey key(family, alternate, name);
1.61 + FeatureValueHashEntry *entry = mFontFeatureValues.PutEntry(key);
1.62 + entry->mKey = key;
1.63 + entry->mValues = v.featureSelectors;
1.64 + }
1.65 + }
1.66 +}
1.67 +
1.68 +bool
1.69 +gfxFontFeatureValueSet::FeatureValueHashEntry::KeyEquals(
1.70 + const KeyTypePointer aKey) const
1.71 +{
1.72 + return aKey->mPropVal == mKey.mPropVal &&
1.73 + aKey->mFamily.Equals(mKey.mFamily) &&
1.74 + aKey->mName.Equals(mKey.mName);
1.75 +}
1.76 +
1.77 +PLDHashNumber
1.78 +gfxFontFeatureValueSet::FeatureValueHashEntry::HashKey(
1.79 + const KeyTypePointer aKey)
1.80 +{
1.81 + return HashString(aKey->mFamily) + HashString(aKey->mName) +
1.82 + aKey->mPropVal * uint32_t(0xdeadbeef);
1.83 +}
1.84 +
