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-rw-r--r--bdf-preview/main.go93
1 files changed, 93 insertions, 0 deletions
diff --git a/bdf-preview/main.go b/bdf-preview/main.go
new file mode 100644
index 0000000..b1f2045
--- /dev/null
+++ b/bdf-preview/main.go
@@ -0,0 +1,93 @@
+package main
+
+import (
+ "html/template"
+ "image"
+ "image/draw"
+ "image/png"
+ "log"
+ "net/http"
+ "os"
+
+ "janouch.name/sklad/bdf"
+)
+
+type fontItem struct {
+ Font *bdf.Font
+ Preview image.Image
+}
+
+var fonts = map[string]fontItem{}
+
+var tmpl = template.Must(template.New("list").Parse(`
+ <!DOCTYPE html>
+ <html><body>
+ <table border='1' cellpadding='3' style='border-collapse: collapse'>
+ <tr>
+ <th>Name</th>
+ <th>Preview</th>
+ <tr>
+{{range $k, $v := . }}
+ <tr>
+ <td>{{$k}}</td>
+ <td><img src='?name={{$k}}'></td>
+ </tr>
+{{end}}
+ </table>
+ </body></html>
+`))
+
+func handle(w http.ResponseWriter, r *http.Request) {
+ if err := r.ParseForm(); err != nil {
+ http.Error(w, err.Error(), 500)
+ return
+ }
+
+ name := r.FormValue("name")
+ if name == "" {
+ w.Header().Set("Content-Type", "text/html")
+ tmpl.Execute(w, fonts)
+ return
+ }
+
+ item, ok := fonts[name]
+ if !ok {
+ http.Error(w, "No such font.", 400)
+ return
+ }
+
+ w.Header().Set("Content-Type", "image/png")
+ if err := png.Encode(w, item.Preview); err != nil {
+ http.Error(w, err.Error(), 500)
+ return
+ }
+}
+
+func main() {
+ for _, filename := range os.Args[1:] {
+ fi, err := os.Open(filename)
+ if err != nil {
+ log.Fatalln(err)
+ }
+ font, err := bdf.NewFromBDF(fi)
+ if err != nil {
+ log.Fatalf("%s: %s\n", filename, err)
+ }
+ if err := fi.Close(); err != nil {
+ log.Fatalln(err)
+ }
+
+ r, _ := font.BoundString(font.Name)
+ super := r.Inset(-3)
+
+ img := image.NewRGBA(super)
+ draw.Draw(img, super, image.White, image.ZP, draw.Src)
+ font.DrawString(img, image.ZP, font.Name)
+
+ fonts[filename] = fontItem{Font: font, Preview: img}
+ }
+
+ log.Println("Starting server")
+ http.HandleFunc("/", handle)
+ log.Fatal(http.ListenAndServe(":8080", nil))
+}