photoprism/internal/thumb/fit.go
Michael Mayer 5ec90a5fff Index: Skip redundant thumbs and support symbolic file links #1049 #1874
Signed-off-by: Michael Mayer <michael@photoprism.app>
2022-07-06 23:01:54 +02:00

35 lines
731 B
Go

package thumb
import "image"
// Fitted contains only "fit" cropped thumbnail sizes from largest to smallest.
// Best for the viewer as proportional resizing maintains the aspect ratio.
var Fitted = []Size{
Sizes[Fit7680],
Sizes[Fit4096],
Sizes[Fit3840],
Sizes[Fit2560],
Sizes[Fit2048],
Sizes[Fit1920],
Sizes[Fit1280],
Sizes[Fit720],
}
// Fit returns the largest fitting thumbnail size.
func Fit(w, h int) (size Size) {
j := len(Fitted) - 1
for i := j; i >= 0; i-- {
if size = Fitted[i]; w <= size.Width && h <= size.Height {
return size
}
}
return Fitted[0]
}
// FitBounds returns the largest thumbnail size fitting the rectangle.
func FitBounds(r image.Rectangle) (s Size) {
return Fit(r.Dx(), r.Dy())
}