imgrz

package
v0.0.0-...-ef729d8 Latest Latest
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 Go to latest Published: Sep 10, 2019 License: MIT Imports: 18 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// input extract
	ErrGetLocalDirImages = 21
	ErrOpenLocalImage    = 22
	ErrOpenHttpImage     = 23
	// filter
	ErrDetectName = 30
	ErrDetectSize = 31
	// resize handle
	ErrResize = 40
)

Resize Error

View Source 
const (
	M byteSize
	G
	T
	P
)

Growth based on human-readable unit formats, 1k=1024b,1M=1024k..

Variables

This section is empty.

Functions

func GetFmtBasename 

func GetFmtBasename(basename, format string) string

GetFmtBasename get the new image basename based on the specified target image format and the name of the original image

func GetImagesFromDir 

func GetImagesFromDir(dirname string) ([]string, error)

GetImagesFromDir gets slice of the image file and iterates through the selected directory and its subdirectories.

func HumDS2Bytes 

func HumDS2Bytes(size string) (len uint64, err error)

HumDS2Bytes parse human data size(like 10k,10M) to bytes unit length, like 1k = 1024bytes

func HumDSLimit 

func HumDSLimit(size string, limit string) (bool, error)

HumDSLimit compare human data sizes and limit setting (like find -size). Param size and limit both support human data size format(bytes, kilobytes, megabytes), like 100k, 1M

HumDSLimit("2000", "+1k") represent whether 1000 bytes >= 1*1024 bytes 

+/-: >= or < , 1k: 1k=1024bytes

Types

type Category 

type Category int
const (
	Local Category = iota
	Http
)

type Error 

type Error struct {
	No   int
	Mark string
	Msg  string
}

func NewError 

func NewError(no int, mark, msg string) Error

new goimgrz error

func (Error) Error 

func (e Error) Error() string

type Filter 

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

Filter is an filter pick up the image matching the condition

func NewFilter 

func NewFilter(pattern, size string) *Filter

Create an filter

func (*Filter) DetectName 

func (f *Filter) DetectName(image Image) (bool, error)

DetectName check the input url or image file whether match the filter pattern

func (*Filter) DetectSize 

func (f *Filter) DetectSize(image Image) (bool, error)

DetectSize check the input url

type Image 

type Image interface {
	// SetResize set image resizing setting property, used for image resize
	SetResize(setting *Setting)

	// DoResize fit the specified resizing configuration resize image to destination
	// Fit the specified scaling configuration (such as size, interpolation function, path, quality),
	// perform image scaling, return the path of the scaled image, or any errors in the scaling process
	DoResize() (string, error)
}

Image support using specified parameters resize image to dst

func NewImage 

func NewImage(cate Category, ident string) Image

New create an image for a specific category

type LocImage 

type LocImage struct {
	Filename string
	Setting  *Setting
}

LocImage is an local image file whose image from local filesystem

func (*LocImage) DoResize 

func (img *LocImage) DoResize() (save string, err error)

func (*LocImage) SetResize 

func (img *LocImage) SetResize(setting *Setting)

SetResize add image resizing property

type Setting 

type Setting struct {
	Dst           string
	Width, Height uint
	Interp        uint
	Qty           int
	Format        string
}

Setting is image resize property setting like width,height,interp,quality,format

type Task 

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

Task used for collect image resize, dispatching resize image task, got the save result or fail info from channel

func NewTask 

func NewTask(setting *Setting) *Task

NewTask create an GirTas pointer

func (*Task) Add 

func (gt *Task) Add(image Image) *Task

Add use filtering information to filter files, and add image to task for resizing

func (*Task) AddImg 

func (gt *Task) AddImg(img string) *Task

AddImg add local image file to task, waiting for resize

func (*Task) AddImgs 

func (gt *Task) AddImgs(imgs string) *Task

AddImgs add multiple image file to task, waiting for resize

func (*Task) AddScanDir 

func (gt *Task) AddScanDir(dir string) *Task

AddDirname specified dirname, scan images and add it to gir task, waiting for resize

func (*Task) AddUrl 

func (gt *Task) AddUrl(url string) *Task

AddUrl add web image url to task, waiting for resize

func (*Task) AddUrls 

func (gt *Task) AddUrls(urls string) *Task

AddUrls add multiple image url to task, waiting for resize

func (*Task) EmptyTask 

func (gt *Task) EmptyTask() bool

EmptyTask return Task whether is empty

func (*Task) Filter 

func (gt *Task) Filter(image Image) error

Filter filter specified image

func (*Task) Report 

func (gt *Task) Report()

Report synchronously report success or fail result in background, when gir task is finish

func (*Task) Run 

func (gt *Task) Run()

ResizeImages concurrency resize image in it's GirImage slice

func (*Task) SetFilter 

func (gt *Task) SetFilter(f *Filter) *Task

SetFilter setting the task filter, using for filter no match info

func (*Task) SetVerbose 

func (gt *Task) SetVerbose(v bool) *Task

SetVerbose setting the task show detail message

type WebImage 

type WebImage struct {
	Url     string
	Setting *Setting
	// contains filtered or unexported fields
}

WebImage is an image from http(s) url

func (*WebImage) DoResize 

func (img *WebImage) DoResize() (save string, err error)

func (*WebImage) SetClient 

func (img *WebImage) SetClient(client *http.Client) *WebImage

SetClient add http client for web image

func (*WebImage) SetResize 

func (img *WebImage) SetResize(setting *Setting)

Source Files

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