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fixed entry date comparison when null

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This commit is contained in:
Thibault Deckers 2020-10-12 10:15:30 +09:00
parent 2991df5f49
commit 5258ab721a
1 changed files with 12 additions and 1 deletions
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13
lib/model/image_entry.dart
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@ -419,18 +419,29 @@ class ImageEntry {
} }
} }
// compare by:
// 1) title ascending
// 2) extension ascending
static int compareByName(ImageEntry a, ImageEntry b) { static int compareByName(ImageEntry a, ImageEntry b) {
final c = compareAsciiUpperCase(a.bestTitle, b.bestTitle); final c = compareAsciiUpperCase(a.bestTitle, b.bestTitle);
return c != 0 ? c : compareAsciiUpperCase(a.extension, b.extension); return c != 0 ? c : compareAsciiUpperCase(a.extension, b.extension);
} }
// compare by:
// 1) size descending
// 2) name ascending
static int compareBySize(ImageEntry a, ImageEntry b) { static int compareBySize(ImageEntry a, ImageEntry b) {
final c = b.sizeBytes.compareTo(a.sizeBytes); final c = b.sizeBytes.compareTo(a.sizeBytes);
return c != 0 ? c : compareByName(a, b); return c != 0 ? c : compareByName(a, b);
} }
static final _epoch = DateTime.fromMillisecondsSinceEpoch(0);
// compare by:
// 1) date descending
// 2) name ascending
static int compareByDate(ImageEntry a, ImageEntry b) { static int compareByDate(ImageEntry a, ImageEntry b) {
final c = b.bestDate?.compareTo(a.bestDate) ?? -1; final c = (b.bestDate ?? _epoch).compareTo(a.bestDate ?? _epoch);
return c != 0 ? c : compareByName(a, b); return c != 0 ? c : compareByName(a, b);
} }
} }