output

package
v0.0.0-...-8c0c3db Latest Latest
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 Go to latest Published: Sep 17, 2022 License: MIT Imports: 15 Imported by: 0

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Constants

View Source 
const (
	JPG Type = iota // 0
	PNG             // 1
	GIF             // 2
	SVG             // 3

	// AUTO_SIZE : set auto size for qrcode , per module fill by 4 pixels
	AUTO_SIZE = 0

	LogoOptionName OptionName = "logo"
)

defined OutputType constants

Variables

View Source 
var (
	BlackColor = image.Black
	BlueColor  = color.NRGBA{0, 127, 255, 255}
	RedCode    = color.NRGBA{255, 82, 25, 255}
	OrangeCode = color.NRGBA{255, 146, 0, 255}
	GreenCode  = color.NRGBA{0, 176, 66, 255}
	// DefaultCodeColor default color is black for QRCode
	DefaultCodeColor = CodeColor{BlackColor, BlackColor, BlackColor, image.White, BlackColor, BlackColor, BlackColor}
	// BlueCodeColor #007FFF/rgba(0,127,255,1)
	BlueCodeColor = CodeColor{BlueColor, BlueColor, BlueColor, image.White, BlueColor, BlueColor, BlueColor}
	// RedCodeColor #FF5219/rgba(255,82,25,1)
	RedCodeColor = CodeColor{RedCode, RedCode, RedCode, image.White, RedCode, RedCode, RedCode}
	// OrangeCodeColor #FF9200/rgba(255,146,0,1)
	OrangeCodeColor = CodeColor{OrangeCode, OrangeCode, OrangeCode, image.White, OrangeCode, OrangeCode, OrangeCode}
	// GreenCodeColor #00B042/rgba(0,176,66,1)
	GreenCodeColor = CodeColor{GreenCode, GreenCode, GreenCode, image.White, GreenCode, GreenCode, GreenCode}
	// ColorfulCodeColor MultiColor for QRCodeStruct Part
	ColorfulCodeColor = CodeColor{DefaultCodeColor.DataColor, RedCodeColor.DataColor, GreenCodeColor.DataColor, image.White, BlueCodeColor.DataColor, OrangeCodeColor.DataColor, DefaultCodeColor.DataColor}
)

Functions

This section is empty.

Types

type BaseOutput 

type BaseOutput struct {
	// image type
	Type Type
	// image width/height
	Size      int
	Options   []*Option
	CodeColor CodeColor
	// contains filtered or unexported fields
}

func (*BaseOutput) AddOption 

func (out *BaseOutput) AddOption(options ...*Option)

func (*BaseOutput) EvalMicroQRCodePenalty 

func (out *BaseOutput) EvalMicroQRCodePenalty(moduleSize int) uint

EvalMicroQRCodePenalty :Evaluate Penalty for Micro QRCode. Page 62, 7.8.3.2 Evaluation of Micro QRCode Symbols. if SUM1 <= SUM2 

Evaluation Score = SUM1 x 16 + SUM2

if SUM1 > SUM2 

Evaluation Score = SUM2 x 16 + SUM2

where: 

SUM1 number of dark modules in right side edge
SUM2 number of dark modules in lower side edge

func (*BaseOutput) EvalPenalty 

func (out *BaseOutput) EvalPenalty(moduleSize int) uint

EvalPenalty :Evaluate Penalty for QRCode. param: moduleSize, not contains quiet zone size.

func (*BaseOutput) GetModule 

func (out *BaseOutput) GetModule(x int, y int) bool

func (*BaseOutput) GetRecommendSize 

func (out *BaseOutput) GetRecommendSize(moduleSize int) []int

GetRecommendSize :Get recommend size for QRCode return: the array of two recommend sizes

func (*BaseOutput) IsModuleSet 

func (out *BaseOutput) IsModuleSet(x int, y int) bool

type CodeColor 

type CodeColor struct {
	FinderPatternColor    color.Color
	AlignmentPatternColor color.Color
	TimingPatternColor    color.Color
	QuietZoneColor        color.Color
	DataColor             color.Color
	FormatColor           color.Color
	VersionColor          color.Color
}

CodeColor color for qrcode

type ImageOutput 

type ImageOutput struct {
	*BaseOutput
	// contains filtered or unexported fields
}

func NewGIFOutput 

func NewGIFOutput(size int) *ImageOutput

func NewGIFOutput0 

func NewGIFOutput0() *ImageOutput

NewGIFOutput0 :Output a new GIF image by auto size.

func NewJPGOutput 

func NewJPGOutput(size int) *ImageOutput

func NewJPGOutput0 

func NewJPGOutput0() *ImageOutput

NewJPGOutput0 :Output a new JPG image by auto size.

func NewOutput 

func NewOutput(output *BaseOutput) *ImageOutput

func NewPNGOutput 

func NewPNGOutput(size int) *ImageOutput

func NewPNGOutput0 

func NewPNGOutput0() *ImageOutput

NewPNGOutput0 :Output a new PNG image by auto size.

func (*ImageOutput) Clone 

func (out *ImageOutput) Clone() Output

Clone : Shallow copy BaseOutput and modules from output, init new image instance

func (*ImageOutput) GetBaseOutput 

func (out *ImageOutput) GetBaseOutput() *BaseOutput

func (*ImageOutput) GetColor 

func (out *ImageOutput) GetColor() CodeColor

func (*ImageOutput) GetImage 

func (out *ImageOutput) GetImage() *image.NRGBA

func (*ImageOutput) GetModule 

func (out *ImageOutput) GetModule(x int, y int) bool

func (*ImageOutput) Init 

func (out *ImageOutput) Init(version *model.Version, qz *model.QuietZone)

Init :init for output when size is AUTO_SIZE

func (*ImageOutput) IsModuleSet 

func (out *ImageOutput) IsModuleSet(x int, y int) bool

func (*ImageOutput) ResizeToFit 

func (out *ImageOutput) ResizeToFit(moduleSize int, quietZoneSize int, pixelSize int)

func (*ImageOutput) Save 

func (out *ImageOutput) Save(fileName string) error

Save : save file

func (*ImageOutput) SaveToBase64 

func (out *ImageOutput) SaveToBase64() (base64Str string, err error)

SaveToBase64 : save image to base64 string

func (*ImageOutput) SaveToWriter 

func (out *ImageOutput) SaveToWriter(writer io.Writer) error

SaveToWriter : save to any io.Writer

func (*ImageOutput) Write 

func (out *ImageOutput) Write(x int, y int, black bool)

Write : write data

func (*ImageOutput) WriteModule 

func (out *ImageOutput) WriteModule(x int, y int, black bool, pixelSize int, part cons.QRCodeStructPart)

WriteModule : write data

func (*ImageOutput) WriteModuleColor 

func (out *ImageOutput) WriteModuleColor(x int, y int, dark bool, setColor color.Color, pixelSize int)

type Option 

type Option struct {
	Name  OptionName
	Value string
}

Option : Output Option

func LogoOption 

func LogoOption(logoImage string) *Option

LogoOption : Option for add logo image at center of QRCode

type OptionName 

type OptionName = string

type Output 

type Output interface {
	GetBaseOutput() *BaseOutput
	// Init :init for output when size is AUTO_SIZE
	Init(version *model.Version, qz *model.QuietZone)
	Write(x int, y int, black bool)
	// WriteModule :write per module by pixelSize
	WriteModule(x int, y int, black bool, pixelSize int, part cons.QRCodeStructPart)
	WriteModuleColor(x int, y int, dark bool, setColor color.Color, pixelSize int)
	// IsModuleSet : check the module whether or not be set
	IsModuleSet(x int, y int) bool
	// GetModule : x,y is module axes , not pixel axes.
	GetModule(x int, y int) bool
	GetImage() *image.NRGBA
	Clone() Output
	ResizeToFit(moduleSize int, quietZoneSize int, pixelSize int)
	Save(fileName string) error
	SaveToWriter(w io.Writer) error
	SaveToBase64() (string, error)
	GetColor() CodeColor
}

Output : the output interface for qrcode print

type Type 

type Type = int

Source Files

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