58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package thumb
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import (
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"github.com/disintegration/imaging"
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"github.com/photoprism/photoprism/pkg/fs"
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)
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type ResampleOption int
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const (
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ResampleFillCenter ResampleOption = iota
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ResampleFillTopLeft
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ResampleFillBottomRight
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ResampleFit
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ResampleResize
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ResampleNearestNeighbor
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ResampleDefault
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ResamplePng
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)
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var ResampleMethods = map[ResampleOption]string{
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ResampleFillCenter: "center",
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ResampleFillTopLeft: "left",
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ResampleFillBottomRight: "right",
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ResampleFit: "fit",
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ResampleResize: "resize",
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}
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// ResampleOptions extracts filter, format, and method from resample options.
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func ResampleOptions(opts ...ResampleOption) (method ResampleOption, filter imaging.ResampleFilter, format fs.FileFormat) {
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method = ResampleFit
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filter = imaging.Lanczos
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format = fs.FormatJpeg
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for _, option := range opts {
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switch option {
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case ResamplePng:
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format = fs.FormatPng
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case ResampleNearestNeighbor:
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filter = imaging.NearestNeighbor
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case ResampleDefault:
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filter = Filter.Imaging()
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case ResampleFillTopLeft:
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method = ResampleFillTopLeft
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case ResampleFillCenter:
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method = ResampleFillCenter
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case ResampleFillBottomRight:
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method = ResampleFillBottomRight
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case ResampleFit:
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method = ResampleFit
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case ResampleResize:
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method = ResampleResize
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}
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}
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return method, filter, format
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}
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