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https://github.com/rosbit/pdf-table-generator
a utility to generate a PDF with table. 一个生成带表格数据的PDF工具包。
https://github.com/rosbit/pdf-table-generator
Last synced: about 6 hours ago
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a utility to generate a PDF with table. 一个生成带表格数据的PDF工具包。
- Host: GitHub
- URL: https://github.com/rosbit/pdf-table-generator
- Owner: rosbit
- License: mit
- Created: 2022-07-16T04:15:20.000Z (over 2 years ago)
- Default Branch: master
- Last Pushed: 2022-08-07T08:52:57.000Z (over 2 years ago)
- Last Synced: 2024-06-20T02:01:53.005Z (5 months ago)
- Language: Go
- Size: 682 KB
- Stars: 2
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# pdf table generator
1. separate pdf output and data generation via interface.
2. position to display values will be calculated.
3. the result can be output to file or HTTP.
## interface
```go
type PDFGenerator interface {
// 在输出整个pdf之前调用，在这里可以做一些输出准备工作
Init()
// 输出结束时调用
Cleanup()
GetPageSize() (pageSize *Rect) // 页面尺寸，比如A4
// 获取线条属性，比如 width=0.5, lineType="normal"
GetLineAttr() (drawLine bool, width float64, lineType string)
// 获取字体名称及字体文件
GetFonts() (<-chan *Font)
// 获取图片及属性
GetImages() (<-chan *ImageAttr) // Image-Path => {Left-upper Point, width, height}
// 获取输出目标
GetWriter() io.Writer
// 获取pdf的标题、底部y坐标、字体名称、字体大小。(标题会在计算后居中显示)
GetTitle() (title string, y float64, fontFamily string, fontSize float64)
// 获取pdf的标题栏: 第一行的(x,y)坐标、高度、字体名称、字体大小、标题描述
GetColumnTitles() (x, y float64, height float64, fontFamily string, fontSize float64, titles []*Title)
// 获取所有的输出行: 第一行的y坐标、高度、字体名称、字体大小、输出行(标题Name => 值)的channel
GetRows() (firstY float64, height float64, fontFamily string, fontSize float64, rows <-chan map[string]string)
}
```
## usage
```go
package main
import (
"github.com/rosbit/pdf-table-generator"
"os"
"io"
"log"
)
func main() {
pg := &pdfTest{}
pdfgen.GeneratePDFTable(pg);
}
// ---- PDFTableGenerator implementation ----
type pdfTest struct {
pdfgen.A4PDFTableGenerator
o *os.File
}
func (t *pdfTest) Init() {
o, e := os.OpenFile("./a.pdf", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0755)
if e != nil {
log.Printf("%v\n", e)
return
}
t.o = o
}
func (t *pdfTest) Cleanup() {
if t.o != nil {
t.o.Close()
}
}
func (t *pdfTest) GetFonts() (<-chan *pdfgen.Font) {
c := make(chan *pdfgen.Font)
go func() {
c <- &pdfgen.Font{
Family: "msyh",
FontPath: "./msyh.ttf", // make sure the file exists
}
close(c)
}()
return c
}
func (t *pdfTest) GetImages() (<-chan *pdfgen.ImageAttr) {
c := make(chan *pdfgen.ImageAttr)
go func(){
c <- &pdfgen.ImageAttr{
Point: pdfgen.Point{
X: 10,
Y: 10,
},
Rect: pdfgen.Rect{
W: 40,
H: 40,
},
ImagePath: "./logo.png", // make sure the file exists
}
close(c)
}()
return c
}
func (t *pdfTest) GetWriter() io.Writer {
return t.o
}
func (t *pdfTest) GetTitle() (title string, y float64, fontFamily string, fontSize float64) {
title = "看看pdf标题是否居中"
y = 40
fontFamily = "msyh"
fontSize = 20.0
return
}
func (t *pdfTest) GetColumnTitles() (x, y float64, height float64, fontFamily string, fontSize float64, titles []*pdfgen.Title) {
x, y = 30.0, 70.0
height = 30.0
fontFamily = "msyh"
fontSize = 12.0
titles = []*pdfgen.Title{
&pdfgen.Title{
Name: "序号",
Width: 50,
},
&pdfgen.Title{
Name: "封号",
Width: 70,
},
&pdfgen.Title{
Name: "外号",
Width: 70,
},
&pdfgen.Title{
Name: "姓名",
Width: 70,
},
&pdfgen.Title{
Name: "性别",
Width: 70,
},
&pdfgen.Title{
Name: "签名",
Width: 260,
ColumnValueAlignLeft: true,
},
}
return
}
func (t *pdfTest) GetRows() (firstY float64, height float64, fontFamily string, fontSize float64, rows <-chan map[string]string) {
firstY = 100
height = 29.0
fontFamily = "msyh"
fontSize = 12.0
c := make(chan map[string]string)
go func() {
c <- map[string]string{
"序号": "1",
"封号": "千手斗罗",
"外号": "千手斗罗",
"姓名": "唐三",
"性别": "男",
"签名": "过去的，...；未来的，...；现在的，...。",
}
c <- map[string]string{
"序号": "2",
"封号": "柔骨斗罗",
"外号": "柔骨斗罗",
"姓名": "小舞",
"性别": "女",
"签名": "不乱...，不困...。不畏...，不念...。",
}
close(c)
}()
rows = c
return
}
```
## result
