main v1.0.0
dtapps 5 months ago
commit 9ef734816e

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kind: pipeline
type: docker
name: clone
steps:
- name: Test
image: golang:1.18
commands:
- go env -w GO111MODULE=on
- go env -w GOPROXY=https://goproxy.cn,direct
- go test -v ./...
- name: Benchmark
image: golang:1.18
commands:
- go env -w GO111MODULE=on
- go env -w GOPROXY=https://goproxy.cn,direct
- go test -bench=. -benchmem

9
.gitignore vendored

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.env
.git
.svn
.idea
.vscode
*.log
gomod.sh
*_test.go
/vendor/

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MIT License
Copyright (c) 2018 李光春
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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<h1>
<a href="https://www.dtapp.net/">Golang goqc</a>
</h1>
📦 Golang goqc
[comment]: <> (go)
[![godoc](https://pkg.go.dev/badge/go.dtapp.net/goqc?status.svg)](https://pkg.go.dev/go.dtapp.net/goqc)
[![goproxy.cn](https://goproxy.cn/stats/go.dtapp.net/goqc/badges/download-count.svg)](https://goproxy.cn/stats/go.dtapp.net/goqc)
[![goreportcard.com](https://goreportcard.com/badge/go.dtapp.net/goqc)](https://goreportcard.com/report/go.dtapp.net/goqc)
[![deps.dev](https://img.shields.io/badge/deps-go-red.svg)](https://deps.dev/go/go.dtapp.net%2Fgoqc)
#### 安装
```shell
go get -v -u go.dtapp.net/goqc@v1.0.0
```

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module go.dtapp.net/goqc
go 1.21
require (
github.com/fogleman/gg v1.3.0
github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
)
require golang.org/x/image v0.14.0 // indirect

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github.com/fogleman/gg v1.3.0 h1:/7zJX8F6AaYQc57WQCyN9cAIz+4bCJGO9B+dyW29am8=
github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
golang.org/x/image v0.14.0 h1:tNgSxAFe3jC4uYqvZdTr84SZoM1KfwdC9SKIFrLjFn4=
golang.org/x/image v0.14.0/go.mod h1:HUYqC05R2ZcZ3ejNQsIHQDQiwWM4JBqmm6MKANTp4LE=

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package goqc
import (
"bytes"
"context"
"embed"
_ "embed"
"github.com/fogleman/gg"
"github.com/golang/freetype/truetype"
"github.com/nfnt/resize"
"github.com/skip2/go-qrcode"
"image/png"
"io"
"path/filepath"
)
//go:embed simhei.ttf
var fontContent embed.FS
var fontPath = "simhei.ttf"
var fontSize = 16.0
func loadFontPath(dc *gg.Context) error {
// 设置字体和文本属性
err := dc.LoadFontFace(fontPath, fontSize)
if err != nil {
return err
}
return nil
}
func loadFontEmbed(dc *gg.Context) error {
// 读取嵌入的字体文件
fontBytes, err := fontContent.ReadFile(fontPath)
if err != nil {
return err
}
// 设置字体
f, err := truetype.Parse(fontBytes)
if err != nil {
return err
}
// 文本属性
face := truetype.NewFace(f, &truetype.Options{
Size: fontSize,
})
dc.SetFontFace(face)
return nil
}
// QrCodeOperation 二维码操作
type QrCodeOperation struct {
ctx context.Context
dc *gg.Context
}
// QrCodeText 生成二维码带文本
func QrCodeText(ctx context.Context, textContent string, qcContent string, qcLevel qrcode.RecoveryLevel) (*QrCodeOperation, error) {
// 生成二维码
qr, err := qrcode.New(qcContent, qcLevel)
if err != nil {
return nil, err
}
// 设置二维码图片的大小
qrSize := 256
// 生成二维码图片
qrImage := qr.Image(qrSize)
// 调整二维码图片大小
qrImage = resize.Resize(uint(qrSize), uint(qrSize), qrImage, resize.Lanczos3)
// 使用 github.com/fogleman/gg 绘制文本
dc := gg.NewContext(qrSize, qrSize)
dc.DrawImage(qrImage, 0, 0)
// 设置字体和文本属性
err = loadFontEmbed(dc)
if err != nil {
return nil, err
}
// 设置文本颜色
dc.SetRGB(0, 0, 0)
// 计算文本尺寸
textWidth, textHeight := dc.MeasureString(textContent)
// 计算文本位置
x := (float64(qrSize) - textWidth) / 2
y := (float64(qrSize+qrSize) + textHeight - textHeight) / 2
// 绘制文本
dc.DrawStringAnchored(textContent, x, y-6, 0, 0)
return &QrCodeOperation{ctx: ctx, dc: dc}, err
}
// SavePNG 保存图片
func (o *QrCodeOperation) SavePNG(filePath, fileName string) error {
if fileName == "" {
return o.dc.SavePNG(filePath)
} else {
path := filepath.Join(filePath, "/", fileName)
return o.dc.SavePNG(path)
}
}
// Encode 返回图片字节
func (o *QrCodeOperation) Encode() ([]byte, error) {
img := o.dc.Image()
encoder := png.Encoder{CompressionLevel: png.BestCompression}
var b bytes.Buffer
err := encoder.Encode(&b, img)
if err != nil {
return nil, err
}
return b.Bytes(), nil
}
// EncodePNG 返回图片编码
func (o *QrCodeOperation) EncodePNG(w io.Writer) error {
return o.dc.EncodePNG(w)
}

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package goqc
const (
Version = "1.0.0"
)
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