2019-04-06 21:31:11 +02:00
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package main
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import (
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"html/template"
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"image"
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"image/draw"
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"image/png"
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"log"
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"net/http"
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"os"
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"janouch.name/sklad/bdf"
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)
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type fontItem struct {
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Font *bdf.Font
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Preview image.Image
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}
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var fonts = map[string]fontItem{}
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var tmpl = template.Must(template.New("list").Parse(`
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2019-04-25 19:59:43 +02:00
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<!DOCTYPE html>
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<html><body>
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<table border='1' cellpadding='3' style='border-collapse: collapse'>
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<tr>
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<th>Name</th>
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<th>Preview</th>
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<tr>
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{{- range $k, $v := . }}
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<tr>
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<td>{{ $k }}</td>
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<td><img src='?name={{ $k }}'></td>
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</tr>
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{{- end }}
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</table>
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</body></html>
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2019-04-06 21:31:11 +02:00
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`))
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func handle(w http.ResponseWriter, r *http.Request) {
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if err := r.ParseForm(); err != nil {
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http.Error(w, err.Error(), 500)
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return
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}
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name := r.FormValue("name")
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if name == "" {
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w.Header().Set("Content-Type", "text/html")
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tmpl.Execute(w, fonts)
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return
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}
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item, ok := fonts[name]
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if !ok {
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http.Error(w, "No such font.", 400)
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return
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}
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w.Header().Set("Content-Type", "image/png")
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if err := png.Encode(w, item.Preview); err != nil {
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http.Error(w, err.Error(), 500)
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return
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}
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}
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func main() {
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for _, filename := range os.Args[1:] {
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fi, err := os.Open(filename)
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if err != nil {
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log.Fatalln(err)
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}
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font, err := bdf.NewFromBDF(fi)
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if err != nil {
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log.Fatalf("%s: %s\n", filename, err)
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}
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if err := fi.Close(); err != nil {
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log.Fatalln(err)
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}
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r, _ := font.BoundString(font.Name)
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super := r.Inset(-3)
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img := image.NewRGBA(super)
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draw.Draw(img, super, image.White, image.ZP, draw.Src)
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font.DrawString(img, image.ZP, font.Name)
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fonts[filename] = fontItem{Font: font, Preview: img}
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}
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2019-04-25 19:59:43 +02:00
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log.Println("starting server")
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2019-04-06 21:31:11 +02:00
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http.HandleFunc("/", handle)
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log.Fatal(http.ListenAndServe(":8080", nil))
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}
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