Started mapping out attributes for typographic features. I FORGOT THE OTHER ATTRIBUTES I NEED TO DO THOSE FIRST.
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Pietro Gagliardi
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e3b1e033b2
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159
ui_attrstr.h
159
ui_attrstr.h
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@ -1,6 +1,7 @@
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typedef struct uiAttributedString uiAttributedString;
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typedef struct uiAttributeSpec uiAttributeSpec;
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// Note: where you say "1 = on", any nonzero value means "on". (TODO)
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_UI_ENUM(uiAttribute) {
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uiAttributeFamily,
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uiAttributeSize, // use Double
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@ -10,12 +11,166 @@ _UI_ENUM(uiAttribute) {
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uiAttributeColor, // use R, G, B, A
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uiAttributeBackground, // use R, G, B, A
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// TODO rename to uiAttributeVertical?
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uiAttributeVerticalForms, // 0 = off, nonzero = 1
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// TODO
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uiAttributeVerticalForms, // 0 = off, 1 = on
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// TODO underline and others
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#if 0
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// These attributes represent typographic features. Each feature
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// is a separate attribute, to make composition easier. The
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// availability of for each attribute are defined by the font; the
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// default values are defined by the font and/or by the OS.
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//
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// A note about features whose parameter is an enumeration:
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// OS X defines typographic features using the AAT specification
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// and converts to OpenType internally when needed, whereas
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// other platforms use OpenType directly. OpenType is less
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// precise about what each enumeration value means than AAT
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// is, so enumeration values do not necessarily represent what
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// OS X expects with all fonts. In cases where they do, libui
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// provides an enumeration type to use. Otherwise, the AAT
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// enumeration values are provided in comments for
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// documentation purposes.
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// TODO kAllTypographicFeaturesType
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uiAttributeCommonLigatures, // 0 = off, 1 = on
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uiAttributeRequiredLigatures, // 0 = off, 1 = on
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uiAttributeRareLigatures, // 0 = off, 1 = on
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uiAttributeLogoLigatures, // 0 = off, 1 = on
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uiAttributeRebusPictureLigatures, // 0 = off, 1 = on
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uiAttributeDipthrongLigatures, // 0 = off, 1 = on
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uiAttributeSquaredLigatures, // 0 = off, 1 = on
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// TODO rename
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uiAttributeAbbreviatedSquared, // 0 = off, 1 = on
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uiAttributeSymbolLigatures, // 0 = off, 1 = on
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uiAttributeContextualLigatures, // 0 = off, 1 = on
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uiAttributeHistoricalLigatures, // 0 = off, 1 = on
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uiAttributeCursiveConnection, // 0 = none, 1 = some, 2 = all
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uiAttributeLetterCasing, // TODO
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// kLetterCaseType
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uiAttributeLinguisticRearrangement, // 0 = off, 1 = on
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uiAttributeNumberSpacing, // TODO
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// kNumberSpacingType
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// TODO kSmartSwashType
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// TODO kDiacriticsType
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// TODO kVerticalPositionType
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uiAttributeFractionForms, // enum uiAttributeFractionForm
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// TODO kOverlappingCharactersType
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// TODO kTypographicExtrasType
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uiAttributeSlashedZero, // 0 = off, 1 = on
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// TODO kMathematicalExtrasType
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uiAttributeMathematicalGreek, // 0 = off, 1 = on
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// TODO kOrnamentSetsType
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// TODO kCharacterAlternativesType
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// TODO kDesignComplexityType
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// TODO kStyleOptionsType
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// TODO titling?
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// TODO kCharacterShapeType
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// we could probably make the enum now
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uiAttributeNumberCase, // TODO
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// TODO kTextSpacingType
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// TODO kTransliterationType
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// AAT defines the following values:
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// 0 = none
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// 1 = box
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// 2 = rounded box
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// 3 = circle
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// 4 = inverted circle
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// 5 = parentheses
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// 6 = period
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// 7 = roman numeral
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// 8 = diamond
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// 9 = inverted box
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// 10 = inverted rounded box
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uiAttributeGlyphAnnotations, // an integer from 0 to a font-specified upper bound
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// TODO kKanaSpacingType
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// TODO kIdeographicSpacingType
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// TODO kUnicodeDecompositionType
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// TODO kRubyKanaType
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// TODO kCJKSymbolAlternativesType
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// TODO kIdeographicAlternativesType
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// TODO kCJKVerticalRomanPlacementType
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// TODO kItalicCJKRomanType
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// TODO kCaseSensitiveLayoutType
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// TODO kAlternateKanaType
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uiAttributeStylisticAlternative1, // 0 = off, 1 = on
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uiAttributeStylisticAlternative2, // 0 = off, 1 = on
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uiAttributeStylisticAlternative3, // 0 = off, 1 = on
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uiAttributeStylisticAlternative4, // 0 = off, 1 = on
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uiAttributeStylisticAlternative5, // 0 = off, 1 = on
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uiAttributeStylisticAlternative6, // 0 = off, 1 = on
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uiAttributeStylisticAlternative7, // 0 = off, 1 = on
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uiAttributeStylisticAlternative8, // 0 = off, 1 = on
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uiAttributeStylisticAlternative9, // 0 = off, 1 = on
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uiAttributeStylisticAlternative10, // 0 = off, 1 = on
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uiAttributeStylisticAlternative11, // 0 = off, 1 = on
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uiAttributeStylisticAlternative12, // 0 = off, 1 = on
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uiAttributeStylisticAlternative13, // 0 = off, 1 = on
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uiAttributeStylisticAlternative14, // 0 = off, 1 = on
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uiAttributeStylisticAlternative15, // 0 = off, 1 = on
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uiAttributeStylisticAlternative16, // 0 = off, 1 = on
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uiAttributeStylisticAlternative17, // 0 = off, 1 = on
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uiAttributeStylisticAlternative18, // 0 = off, 1 = on
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uiAttributeStylisticAlternative19, // 0 = off, 1 = on
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uiAttributeStylisticAlternative20, // 0 = off, 1 = on
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// TODO kContextualAlternatesType
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// TODO kLowerCaseType
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// TODO kUpperCaseType
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// TODO kLanguageTagType?
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// TODO kCJKRomanSpacingType
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#endif
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// TODO uiAttributeSystem,
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// TODO uiAttributeCustom,
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};
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_UI_ENUM(uiAttributeFractionForm) {
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uiAttributeFractionFormNone,
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uiAttributeFractionFormVertical,
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uiAttributeFractionFormDiagonal,
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};
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// TODO number case
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struct uiAttributeSpec {
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uiAttribute Type;
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uintptr_t Value;
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