40 lines
1.3 KiB
Dart
40 lines
1.3 KiB
Dart
import 'package:aves/widgets/viewer/info/metadata/xmp_namespaces.dart';
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import 'package:aves/widgets/viewer/info/metadata/xmp_structs.dart';
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import 'package:flutter/widgets.dart';
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// cf www.metadataworkinggroup.org/pdf/mwg_guidance.pdf (down, as of 2021/02/15)
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class XmpMgwRegionsNamespace extends XmpNamespace {
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static const ns = 'mwg-rs';
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static final dimensionsPattern = RegExp(r'mwg-rs:Regions/mwg-rs:AppliedToDimensions/(.*)');
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static final regionListPattern = RegExp(r'mwg-rs:Regions/mwg-rs:RegionList\[(\d+)\]/(.*)');
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final dimensions = <String, String>{};
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final regionList = <int, Map<String, String>>{};
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XmpMgwRegionsNamespace(Map<String, String> rawProps) : super(ns, rawProps);
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@override
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String get displayTitle => 'Regions';
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@override
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bool extractData(XmpProp prop) {
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final hasStructs = extractStruct(prop, dimensionsPattern, dimensions);
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final hasIndexedStructs = extractIndexedStruct(prop, regionListPattern, regionList);
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return hasStructs || hasIndexedStructs;
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}
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@override
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List<Widget> buildFromExtractedData() => [
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if (dimensions.isNotEmpty)
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XmpStructCard(
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title: 'Applied To Dimensions',
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struct: dimensions,
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),
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if (regionList.isNotEmpty)
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XmpStructArrayCard(
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title: 'Region',
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structByIndex: regionList,
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),
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];
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}
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