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import {Feature} from './opentype';
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import r from 'restructure';
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/*******************
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* Variation Store *
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*******************/
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let F2DOT14 = new r.Fixed(16, 'BE', 14);
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let RegionAxisCoordinates = new r.Struct({
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startCoord: F2DOT14,
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peakCoord: F2DOT14,
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endCoord: F2DOT14
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});
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let VariationRegionList = new r.Struct({
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axisCount: r.uint16,
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regionCount: r.uint16,
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variationRegions: new r.Array(new r.Array(RegionAxisCoordinates, 'axisCount'), 'regionCount')
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});
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let DeltaSet = new r.Struct({
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shortDeltas: new r.Array(r.int16, t => t.parent.shortDeltaCount),
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regionDeltas: new r.Array(r.int8, t => t.parent.regionIndexCount - t.parent.shortDeltaCount),
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deltas: t => t.shortDeltas.concat(t.regionDeltas)
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});
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let ItemVariationData = new r.Struct({
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itemCount: r.uint16,
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shortDeltaCount: r.uint16,
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regionIndexCount: r.uint16,
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regionIndexes: new r.Array(r.uint16, 'regionIndexCount'),
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deltaSets: new r.Array(DeltaSet, 'itemCount')
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});
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export let ItemVariationStore = new r.Struct({
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format: r.uint16,
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variationRegionList: new r.Pointer(r.uint32, VariationRegionList),
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variationDataCount: r.uint16,
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itemVariationData: new r.Array(new r.Pointer(r.uint32, ItemVariationData), 'variationDataCount')
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});
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/**********************
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* Feature Variations *
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**********************/
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let ConditionTable = new r.VersionedStruct(r.uint16, {
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1: {
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axisIndex: r.uint16,
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axisIndex: r.uint16,
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filterRangeMinValue: F2DOT14,
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filterRangeMaxValue: F2DOT14
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}
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});
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let ConditionSet = new r.Struct({
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conditionCount: r.uint16,
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conditionTable: new r.Array(new r.Pointer(r.uint32, ConditionTable), 'conditionCount')
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});
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let FeatureTableSubstitutionRecord = new r.Struct({
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featureIndex: r.uint16,
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alternateFeatureTable: new r.Pointer(r.uint32, Feature, {type: 'parent'})
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});
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let FeatureTableSubstitution = new r.Struct({
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version: r.fixed32,
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substitutionCount: r.uint16,
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substitutions: new r.Array(FeatureTableSubstitutionRecord, 'substitutionCount')
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});
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let FeatureVariationRecord = new r.Struct({
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conditionSet: new r.Pointer(r.uint32, ConditionSet, {type: 'parent'}),
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featureTableSubstitution: new r.Pointer(r.uint32, FeatureTableSubstitution, {type: 'parent'})
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});
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export let FeatureVariations = new r.Struct({
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majorVersion: r.uint16,
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minorVersion: r.uint16,
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featureVariationRecordCount: r.uint32,
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featureVariationRecords: new r.Array(FeatureVariationRecord, 'featureVariationRecordCount')
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});
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