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33bb32f549
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find . \
! -wholename "*/.git*" \
! -wholename "obj-ff-dbg*" \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
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-o -iname "*.mm" \) | \
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}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_FONT_FEATURES_H
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#define GFX_FONT_FEATURES_H
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#include "nsTHashtable.h"
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#include "nsTArray.h"
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#include "nsString.h"
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// An OpenType feature tag and value pair
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struct gfxFontFeature {
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uint32_t mTag; // see http://www.microsoft.com/typography/otspec/featuretags.htm
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uint32_t mValue; // 0 = off, 1 = on, larger values may be used as parameters
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// to features that select among multiple alternatives
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};
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inline bool
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operator<(const gfxFontFeature& a, const gfxFontFeature& b)
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{
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return (a.mTag < b.mTag) || ((a.mTag == b.mTag) && (a.mValue < b.mValue));
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}
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inline bool
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operator==(const gfxFontFeature& a, const gfxFontFeature& b)
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{
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return (a.mTag == b.mTag) && (a.mValue == b.mValue);
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}
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struct gfxAlternateValue {
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uint32_t alternate; // constants in gfxFontConstants.h
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nsString value; // string value to be looked up
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};
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inline bool
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operator<(const gfxAlternateValue& a, const gfxAlternateValue& b)
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{
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return (a.alternate < b.alternate) ||
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((a.alternate == b.alternate) && (a.value < b.value));
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}
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inline bool
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operator==(const gfxAlternateValue& a, const gfxAlternateValue& b)
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{
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return (a.alternate == b.alternate) && (a.value == b.value);
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}
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class gfxFontFeatureValueSet final {
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public:
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NS_INLINE_DECL_REFCOUNTING(gfxFontFeatureValueSet)
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gfxFontFeatureValueSet();
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struct ValueList {
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ValueList(const nsAString& aName, const nsTArray<uint32_t>& aSelectors)
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: name(aName), featureSelectors(aSelectors)
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{}
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nsString name;
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nsTArray<uint32_t> featureSelectors;
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};
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struct FeatureValues {
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uint32_t alternate;
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nsTArray<ValueList> valuelist;
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};
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// returns true if found, false otherwise
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bool
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GetFontFeatureValuesFor(const nsAString& aFamily,
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uint32_t aVariantProperty,
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const nsAString& aName,
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nsTArray<uint32_t>& aValues);
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void
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AddFontFeatureValues(const nsAString& aFamily,
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const nsTArray<gfxFontFeatureValueSet::FeatureValues>& aValues);
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private:
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// Private destructor, to discourage deletion outside of Release():
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~gfxFontFeatureValueSet() {}
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struct FeatureValueHashKey {
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nsString mFamily;
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uint32_t mPropVal;
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nsString mName;
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FeatureValueHashKey()
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: mPropVal(0)
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{ }
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FeatureValueHashKey(const nsAString& aFamily,
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uint32_t aPropVal,
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const nsAString& aName)
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: mFamily(aFamily), mPropVal(aPropVal), mName(aName)
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{ }
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FeatureValueHashKey(const FeatureValueHashKey& aKey)
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: mFamily(aKey.mFamily), mPropVal(aKey.mPropVal), mName(aKey.mName)
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{ }
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};
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class FeatureValueHashEntry : public PLDHashEntryHdr {
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public:
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typedef const FeatureValueHashKey &KeyType;
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typedef const FeatureValueHashKey *KeyTypePointer;
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explicit FeatureValueHashEntry(KeyTypePointer aKey) { }
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FeatureValueHashEntry(const FeatureValueHashEntry& toCopy)
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{
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NS_ERROR("Should not be called");
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}
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~FeatureValueHashEntry() { }
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bool KeyEquals(const KeyTypePointer aKey) const;
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static KeyTypePointer KeyToPointer(KeyType aKey) { return &aKey; }
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static PLDHashNumber HashKey(const KeyTypePointer aKey);
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enum { ALLOW_MEMMOVE = true };
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FeatureValueHashKey mKey;
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nsTArray<uint32_t> mValues;
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};
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nsTHashtable<FeatureValueHashEntry> mFontFeatureValues;
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};
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#endif
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