base64Captcha

type Audio struct {
	CaptchaItem
	// contains filtered or unexported fields
}

type CaptchaImageChar struct {
	CaptchaItem

	Complex int
	// contains filtered or unexported fields
}

type CaptchaImageDigit struct {
	CaptchaItem
	*image.Paletted
	// contains filtered or unexported fields
}

type CaptchaInterface interface {
	// BinaryEncoding covert to bytes
	BinaryEncoding() []byte
	// WriteTo output captcha entity
	WriteTo(w io.Writer) (n int64, err error)
}

type CaptchaItem struct {
	// Content captcha entity content.
	Content string
	// VerifyValue captcha verify value.
	VerifyValue string
	// ImageWidth image width pixel.
	ImageWidth int
	// ImageHeight image height pixel.
	ImageHeight int
}

type ConfigAudio struct {
	// CaptchaLen Default number of digits in captcha solution.
	CaptchaLen int
	// Language possible values for lang are "en", "ja", "ru", "zh".
	Language string
}

type ConfigCharacter struct {
	// Height png height in pixel.
	// 图像验证码的高度像素.
	Height int
	// Width Captcha png width in pixel.
	// 图像验证码的宽度像素
	Width int
	//Mode :
	//    base64captcha.CaptchaModeNumber=0,
	//    base64captcha.CaptchaModeAlphabet=1,
	//    base64captcha.CaptchaModeArithmetic=2,
	//    base64captcha.CaptchaModeNumberAlphabet=3,
	//    base64captcha.CaptchaModeChinese=4,
	//    base64captcha.CaptchaModeUseSequencedCharacters=5
	Mode int
	//IsUseSimpleFont is use simply font(...base64Captcha/fonts/RitaSmith.ttf).
	IsUseSimpleFont bool
	//ComplexOfNoiseText text noise count.
	//   CaptchaComplexLower /  CaptchaComplexMedium  /  CaptchaComplexHigh
	ComplexOfNoiseText int
	//ComplexOfNoiseDot dot noise count.
	ComplexOfNoiseDot int
	//IsShowHollowLine is show hollow line.
	IsShowHollowLine bool
	//IsShowNoiseDot is show noise dot.
	IsShowNoiseDot bool
	//IsShowNoiseText is show noise text.
	IsShowNoiseText bool
	//IsShowSlimeLine is show slime line.
	IsShowSlimeLine bool
	//IsShowSineLine is show sine line.
	IsShowSineLine bool

	//CaptchaRunePairs make a list of rune for Captcha random selection.
	// 随机字符串可选内容
	ChineseCharacterSource string

	// SequencedCharacters make a list of sequenced runes for Captcha random selection
	//   Choose Mode base64captcha.CaptchaModeUseSequencedCharacters
	//   随机字符串可选内容，词组内部保证顺序，使用模式CaptchaModeUseSequencedCharacters 使用
	SequencedCharacters []string

	//UseCJKFonts: ask if shell uses CJKFonts (now including 文泉驿微米黑)
	// 是否使用CJK字体
	UseCJKFonts bool

	// CaptchaLen Default number of digits in captcha solution.
	// 默认数字验证长度6.
	CaptchaLen int

	//BgHashColor image background hash string color eg: #fff
	BgHashColor string

	//BgColor captcha image background color (optional)
	//背景颜色
	BgColor *color.RGBA
}

type ConfigDigit struct {

	// Height png height in pixel.
	// 图像验证码的高度像素.
	Height int
	// Width Captcha png width in pixel.
	// 图像验证码的宽度像素
	Width int
	// DefaultLen Default number of digits in captcha solution.
	// 默认数字验证长度6.
	CaptchaLen int
	// MaxSkew max absolute skew factor of a single digit.
	// 图像验证码的最大干扰洗漱.
	MaxSkew float64
	// DotCount Number of background circles.
	// 图像验证码干扰圆点的数量.
	DotCount int
}