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node_modules/fontkit/src/tables/variations.js
| 81 lines
| 2.4 KiB
| application/javascript
| JavascriptLexer
|
| r789 | import {Feature} from './opentype'; | |||
| import r from 'restructure'; | ||||
| /******************* | ||||
| * Variation Store * | ||||
| *******************/ | ||||
| let F2DOT14 = new r.Fixed(16, 'BE', 14); | ||||
| let RegionAxisCoordinates = new r.Struct({ | ||||
| startCoord: F2DOT14, | ||||
| peakCoord: F2DOT14, | ||||
| endCoord: F2DOT14 | ||||
| }); | ||||
| let VariationRegionList = new r.Struct({ | ||||
| axisCount: r.uint16, | ||||
| regionCount: r.uint16, | ||||
| variationRegions: new r.Array(new r.Array(RegionAxisCoordinates, 'axisCount'), 'regionCount') | ||||
| }); | ||||
| let DeltaSet = new r.Struct({ | ||||
| shortDeltas: new r.Array(r.int16, t => t.parent.shortDeltaCount), | ||||
| regionDeltas: new r.Array(r.int8, t => t.parent.regionIndexCount - t.parent.shortDeltaCount), | ||||
| deltas: t => t.shortDeltas.concat(t.regionDeltas) | ||||
| }); | ||||
| let ItemVariationData = new r.Struct({ | ||||
| itemCount: r.uint16, | ||||
| shortDeltaCount: r.uint16, | ||||
| regionIndexCount: r.uint16, | ||||
| regionIndexes: new r.Array(r.uint16, 'regionIndexCount'), | ||||
| deltaSets: new r.Array(DeltaSet, 'itemCount') | ||||
| }); | ||||
| export let ItemVariationStore = new r.Struct({ | ||||
| format: r.uint16, | ||||
| variationRegionList: new r.Pointer(r.uint32, VariationRegionList), | ||||
| variationDataCount: r.uint16, | ||||
| itemVariationData: new r.Array(new r.Pointer(r.uint32, ItemVariationData), 'variationDataCount') | ||||
| }); | ||||
| /********************** | ||||
| * Feature Variations * | ||||
| **********************/ | ||||
| let ConditionTable = new r.VersionedStruct(r.uint16, { | ||||
| 1: { | ||||
| axisIndex: r.uint16, | ||||
| axisIndex: r.uint16, | ||||
| filterRangeMinValue: F2DOT14, | ||||
| filterRangeMaxValue: F2DOT14 | ||||
| } | ||||
| }); | ||||
| let ConditionSet = new r.Struct({ | ||||
| conditionCount: r.uint16, | ||||
| conditionTable: new r.Array(new r.Pointer(r.uint32, ConditionTable), 'conditionCount') | ||||
| }); | ||||
| let FeatureTableSubstitutionRecord = new r.Struct({ | ||||
| featureIndex: r.uint16, | ||||
| alternateFeatureTable: new r.Pointer(r.uint32, Feature, {type: 'parent'}) | ||||
| }); | ||||
| let FeatureTableSubstitution = new r.Struct({ | ||||
| version: r.fixed32, | ||||
| substitutionCount: r.uint16, | ||||
| substitutions: new r.Array(FeatureTableSubstitutionRecord, 'substitutionCount') | ||||
| }); | ||||
| let FeatureVariationRecord = new r.Struct({ | ||||
| conditionSet: new r.Pointer(r.uint32, ConditionSet, {type: 'parent'}), | ||||
| featureTableSubstitution: new r.Pointer(r.uint32, FeatureTableSubstitution, {type: 'parent'}) | ||||
| }); | ||||
| export let FeatureVariations = new r.Struct({ | ||||
| majorVersion: r.uint16, | ||||
| minorVersion: r.uint16, | ||||
| featureVariationRecordCount: r.uint32, | ||||
| featureVariationRecords: new r.Array(FeatureVariationRecord, 'featureVariationRecordCount') | ||||
| }); | ||||