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perf(images): size decoded covers from layout constraints

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zarzet
2026-09-06 02:33:42 +07:00
parent fdb4a0eaa5
commit 1d0bb56f9b
2 changed files with 73 additions and 2 deletions
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lib/widgets/cached_cover_image.dart
+30 -2
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@@ -41,10 +41,38 @@ class CachedCoverImage extends StatelessWidget {
@override
Widget build(BuildContext context) {
final autoMemCacheWidth =
if (width != null ||
height != null ||
memCacheWidth != null ||
memCacheHeight != null) {
return _buildImage(context, const BoxConstraints());
}
// Grid cells size their children through constraints rather than explicit
// width/height. Use those bounds for decoding as well as explicit sizes.
return LayoutBuilder(
builder: (context, constraints) => _buildImage(context, constraints),
);
}
Widget _buildImage(BuildContext context, BoxConstraints constraints) {
var autoMemCacheWidth =
memCacheWidth ?? _cacheExtentForLogicalSize(context, width);
final autoMemCacheHeight =
var autoMemCacheHeight =
memCacheHeight ?? _cacheExtentForLogicalSize(context, height);
if (autoMemCacheWidth == null && autoMemCacheHeight == null) {
// Infer one axis to preserve the source aspect ratio and respect any
// explicit decode override used by large artwork/header consumers.
autoMemCacheWidth = _cacheExtentForLogicalSize(
context,
constraints.maxWidth,
);
if (autoMemCacheWidth == null) {
autoMemCacheHeight = _cacheExtentForLogicalSize(
context,
constraints.maxHeight,
);
}
}
final diskCacheWidth = resizeDiskCache ? autoMemCacheWidth : null;
final diskCacheHeight = resizeDiskCache ? autoMemCacheHeight : null;
final image = CachedNetworkImage(