thumbnail

package

v0.0.0-...-de1cc99 Latest Latest Go to latest Published: Feb 13, 2026 License: GPL-3.0 Imports: 12 Imported by: 0

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Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/pozitronik/tucha

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Documentation ¶

Overview ¶

Package thumbnail provides image thumbnail generation and caching.

Index ¶

Variables
func IsSupportedFormat(filename string) bool
type Generator
- func NewGenerator(cacheDir string) (*Generator, error)
- func (g *Generator) Generate(srcFile *os.File, hash string, preset Preset) (*Result, error)
type Preset
- func GetPreset(name string) *Preset
- func (p Preset) IsOriginal() bool
type Result

Constants ¶

This section is empty.

Variables ¶

View Source

var Presets = map[string]Preset{
	"xw11": {Width: 26, Height: 26},
	"xw27": {Width: 28, Height: 38},
	"xw22": {Width: 36, Height: 24},
	"xw12": {Width: 52, Height: 35},
	"xw28": {Width: 64, Height: 43},
	"xw23": {Width: 72, Height: 48},
	"xw14": {Width: 160, Height: 107},
	"xw17": {Width: 160, Height: 120},
	"xw10": {Width: 160, Height: 120},
	"xw29": {Width: 150, Height: 150},
	"xw24": {Width: 168, Height: 112},
	"xw20": {Width: 170, Height: 113},
	"xw15": {Width: 206, Height: 137},
	"xw19": {Width: 206, Height: 206},
	"xw26": {Width: 270, Height: 365},
	"xw18": {Width: 305, Height: 230},
	"xw13": {Width: 320, Height: 213},
	"xw16": {Width: 320, Height: 240},
	"xw25": {Width: 336, Height: 224},
	"xw21": {Width: 340, Height: 226},
	"xw2":  {Width: 1000, Height: 667},
	"xw1":  {Width: 0, Height: 0},
}

Presets maps preset names to dimensions as defined in API specification.

Functions ¶

func IsSupportedFormat ¶

func IsSupportedFormat(filename string) bool

IsSupportedFormat checks if the file extension indicates a supported image format.

Types ¶

type Generator ¶

type Generator struct {
	// contains filtered or unexported fields
}

Generator creates and caches image thumbnails.

func NewGenerator ¶

func NewGenerator(cacheDir string) (*Generator, error)

NewGenerator creates a new thumbnail generator with the specified cache directory. If cacheDir is empty, thumbnails are generated on-the-fly without caching.

func (*Generator) Generate ¶

func (g *Generator) Generate(srcFile *os.File, hash string, preset Preset) (*Result, error)

Generate creates a thumbnail for the given image file at the specified preset size. Returns the thumbnail data and content type.

type Preset ¶

type Preset struct {
	Width  int
	Height int
}

Preset defines thumbnail dimensions.

func GetPreset ¶

func GetPreset(name string) *Preset

GetPreset returns the preset for the given name, or nil if not found.

func (Preset) IsOriginal ¶

func (p Preset) IsOriginal() bool

IsOriginal returns true if the preset represents original size.

type Result ¶

type Result struct {
	Data        []byte
	ContentType string
}

Result holds the generated thumbnail data.

Source Files ¶

View all Source files

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