Fix font handling #5
Comments
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Your snippet is almost correct, just pass The python implementation uses C dependencies to handle fonts. This module uses a pure Go implementation which uses an on-disk cache to store font information. We have chosen to expose the path to the font cache. I'm working towards enabling go-text as a replacement for the text engine, so that the |
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I don't have the fontmapCache file present so I can't get this example to work currently. panic: runtime error: invalid memory address or nil pointer dereference goroutine 1 [running]: |
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See the file pdf/draw_test.go and the snippet : // this command has to run once
fmt.Println("Scanning fonts...")
_, err := fc.ScanAndCache(fontmapCache)
if err != nil {
log.Fatal(err)
}
fs, err := fc.LoadFontsetFile(fontmapCache)
if err != nil {
log.Fatal(err)
}
fontconfig = text.NewFontConfigurationPango(fcfonts.NewFontMap(fc.Standard.Copy(), fs)) |
Ye this font stuff is just really not working for me. Perhaps I just wait for the replacement of these parts ;p |
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The error message is just a warning, it shouldn't fatal. |
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Full example |
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Thank you for the full example.There is something strange though : only one fatal log should happen (since |
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That was with empty html string, this link has a sample page in it. |
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Could you add the exact Go sample you use ? It still don't get why the program does not exit at the first log.Fatal. |
package main
import (
"fmt"
"os"
goweasyprint "github.com/benoitkugler/go-weasyprint"
fc "github.com/benoitkugler/textprocessing/fontconfig"
"github.com/benoitkugler/textprocessing/pango/fcfonts"
"github.com/benoitkugler/webrender/text"
"github.com/benoitkugler/webrender/utils"
)
func main() {
html := `<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>My Website</title>
</head>
<body>
<main>
<h1>Welcome to My Website</h1>
</main>
</body>
</html>
`
var fontconfig text.FontConfiguration
const fontmapCache = "pdf/test/cache.fc"
fmt.Println("Scanning fonts...")
_, err := fc.ScanAndCache(fontmapCache)
if err != nil {
fmt.Println(err.Error())
}
fs, err := fc.LoadFontsetFile(fontmapCache)
if err != nil {
fmt.Println(err.Error())
}
fontconfig = text.NewFontConfigurationPango(fcfonts.NewFontMap(fc.Standard.Copy(), fs))
err = goweasyprint.HtmlToPdf(os.Stdout, utils.InputString(html), fontconfig)
if err != nil {
fmt.Println(err.Error())
}
} |
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The issue is here : _, err := fc.ScanAndCache(fontmapCache)
if err != nil {
fmt.Println(err.Error())
}I think you don't have the proper directories to match the font cache file defined as Could you adjust this constant to something like |
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Alrighty it wrote my file, but didn't process the inline css inside the string like wkhtml does. // weasyprint
var fontconfig text.FontConfiguration
const fontmapCache = "cache.fc"
fmt.Println("Scanning fonts...")
_, err = fc.ScanAndCache(fontmapCache)
if err != nil {
return err
}
fs, err := fc.LoadFontsetFile(fontmapCache)
if err != nil {
return err
}
fontconfig = text.NewFontConfigurationPango(fcfonts.NewFontMap(fc.Standard.Copy(), fs))
file, err := os.Create(filename)
if err != nil {
return err
}
err = goweasyprint.HtmlToPdf(file, utils.InputString(buf.String()), fontconfig)
if err != nil {
return err
}
// wkhtml
pdfg, err := wkhtmltopdf.NewPDFGenerator()
if err != nil {
log.Fatal(err)
}
pdfg.AddPage(wkhtmltopdf.NewPageReader(strings.NewReader(buf.String())))
err = pdfg.Create()
if err != nil {
log.Fatal(err)
}
err = pdfg.WriteFile(filename)
if err != nil {
log.Fatal(err)
} |
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Can you post the exact html string you use ? I didn't grasp which CSS you are refering to. |
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Thank you. |
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PDF result: Wkhtml from same string generates correct coloring on each cell, and content. it just doesn't load properly for some reason. |
I never used to have to deal with fonts in python, so not sure why I'm being forced to define all this stuff I don't want to deal with here.
fs, err := fc.LoadFontsetFile(fontmapCache)
fontconfig := text.NewFontConfigurationPango(fcfonts.NewFontMap(fc.Standard.Copy(), fs))
All I want is a simple html to pdf here from string to file.
err := pdf.HtmlToPdf(os.Stdout, utils.InputString(html), fs)
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