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chore: use ratio instead of max width

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Steven 2024-09-09 21:43:47 +08:00
parent 76a9a343a5
commit 4790e84b98
1 changed files with 5 additions and 9 deletions
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14
server/router/api/v1/resource_service.go
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@ -408,8 +408,8 @@ func (s *APIV1Service) GetResourceBlob(resource *store.Resource) ([]byte, error)
}
const (
// thumbnailMaxWidth is the maximum width of the thumbnail image.
thumbnailMaxWidth = 700
// thumbnailRatio is the ratio of the thumbnail image.
thumbnailRatio = 0.8
)
// getOrGenerateThumbnail returns the thumbnail image of the resource.
@ -434,13 +434,9 @@ func (s *APIV1Service) getOrGenerateThumbnail(resource *store.Resource) ([]byte,
return nil, errors.Wrap(err, "failed to decode thumbnail image")
}
// If the image is smaller than the thumbnailMaxWidth, return the original image.
if img.Bounds().Max.X < thumbnailMaxWidth {
return blob, nil
}
// Resize the image to the thumbnailMaxWidth.
thumbnailImage := imaging.Resize(img, thumbnailMaxWidth, 0, imaging.Lanczos)
thumbnailWidth := int(float64(img.Bounds().Dx()) * thumbnailRatio)
// Resize the image to the thumbnailWidth.
thumbnailImage := imaging.Resize(img, thumbnailWidth, 0, imaging.Lanczos)
if err := imaging.Save(thumbnailImage, filePath); err != nil {
return nil, errors.Wrap(err, "failed to save thumbnail file")
}