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package

v1.0.0-rc.2 Latest Latest Go to latest Published: Feb 28, 2019 License: MIT Imports: 12 Imported by: 0

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Repository

github.com/traPtitech/traQ

Documentation ¶

Index ¶

Constants
Variables
func CalcThumbnailSize(size image.Point, maxSize image.Point) image.Point
func EncodeToJPG(img image.Image) (b *bytes.Buffer, err error)
func EncodeToPNG(img image.Image) (b *bytes.Buffer, err error)
func Generate(ctx context.Context, src io.Reader, mime string) (image.Image, error)
func Resize(img image.Image, maxWidth, maxHeight int) image.Image

Constants ¶

View Source

const (
	// ThumbnailMaxWidth サムネイルの最大幅
	ThumbnailMaxWidth = 360
	// ThumbnailMaxHeight サムネイルの最大高さ
	ThumbnailMaxHeight = 480
)

Variables ¶

View Source

var (
	// ErrFileThumbUnsupported この形式のファイルのサムネイル生成はサポートされていない
	ErrFileThumbUnsupported = errors.New("generating a thumbnail of the file is not supported")
)

Functions ¶

func CalcThumbnailSize ¶

func CalcThumbnailSize(size image.Point, maxSize image.Point) image.Point

CalcThumbnailSize サムネイル画像のサイズを計算します

func EncodeToJPG ¶

func EncodeToJPG(img image.Image) (b *bytes.Buffer, err error)

EncodeToJPG image.Imageをjpgのバイトバッファにエンコードします

func EncodeToPNG ¶

func EncodeToPNG(img image.Image) (b *bytes.Buffer, err error)

EncodeToPNG image.Imageをpngのバイトバッファにエンコードします

func Generate ¶

func Generate(ctx context.Context, src io.Reader, mime string) (image.Image, error)

Generate サムネイル画像を生成します

func Resize ¶

func Resize(img image.Image, maxWidth, maxHeight int) image.Image

Resize imgをリサイズします。アスペクト比は保持されます。

Types ¶

This section is empty.

Source Files ¶

View all Source files

generator.go

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