label-tool: allow choosing from multiple fonts
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5cef6b240a
commit
154f3147e3
@ -4,6 +4,7 @@ import (
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"errors"
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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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@ -16,15 +17,26 @@ import (
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"janouch.name/sklad/ql"
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)
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var font *bdf.Font
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var tmplFont = template.Must(template.New("font").Parse(`
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<!DOCTYPE html>
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<html><body>
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<h1>PT-CBP label printing tool</h1>
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<h2>Choose font</h2>
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{{ range $i, $f := . }}
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<p><a href='?font={{ $i }}'>
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<img src='?font={{ $i }}&preview' title='{{ $f.Path }}'></a>
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{{ end }}
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</body></html>
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`))
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var tmpl = template.Must(template.New("form").Parse(`
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var tmplForm = template.Must(template.New("form").Parse(`
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<!DOCTYPE html>
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<html><body>
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<h1>PT-CBP label printing tool</h1>
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<table><tr>
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<td valign=top>
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<img border=1 src='?img&scale={{.Scale}}&text={{.Text}}'>
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<img border=1 src='?font={{ .FontIndex }}&scale={{ .Scale }}{{/*
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*/}}&text={{ .Text }}&render'>
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</td>
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<td valign=top>
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<fieldset>
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@ -59,9 +71,10 @@ var tmpl = template.Must(template.New("form").Parse(`
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{{ end }}
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</fieldset>
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<fieldset>
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<p>Font: {{ .Font.Name }}
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<p>Font: {{ .Font.Name }} <a href='?'>Change</a>
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</fieldset>
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<form><fieldset>
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<input type=hidden name=font value='{{ .FontIndex }}'>
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<p><label for=text>Text:</label>
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<input id=text name=text value='{{.Text}}'>
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<label for=scale>Scale:</label>
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@ -74,6 +87,14 @@ var tmpl = template.Must(template.New("form").Parse(`
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</body></html>
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`))
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type fontItem struct {
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Path string
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Font *bdf.Font
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Preview image.Image
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}
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var fonts = []*fontItem{}
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func getPrinter() (*ql.Printer, error) {
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printer, err := ql.Open()
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if err != nil {
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@ -96,8 +117,28 @@ func getStatus(printer *ql.Printer) error {
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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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if r.Method == http.MethodGet {
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w.Header().Set("Cache-Control", "no-store")
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}
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var (
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font *fontItem
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fontIndex int
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err error
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)
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if fontIndex, err = strconv.Atoi(r.FormValue("font")); err == nil {
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font = fonts[fontIndex]
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} else {
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w.Header().Set("Content-Type", "text/html")
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tmplFont.Execute(w, fonts)
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return
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}
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if _, ok := r.Form["preview"]; ok {
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w.Header().Set("Content-Type", "image/png")
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if err := png.Encode(w, font.Preview); err != nil {
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http.Error(w, err.Error(), 500)
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}
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return
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}
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@ -126,6 +167,7 @@ func handle(w http.ResponseWriter, r *http.Request) {
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InitErr error
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MediaInfo *ql.MediaInfo
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Font *bdf.Font
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FontIndex int
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Text string
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Scale int
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}{
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@ -133,11 +175,11 @@ func handle(w http.ResponseWriter, r *http.Request) {
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PrinterErr: printerErr,
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InitErr: initErr,
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MediaInfo: mediaInfo,
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Font: font,
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Font: font.Font,
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FontIndex: fontIndex,
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Text: r.FormValue("text"),
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}
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var err error
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params.Scale, err = strconv.Atoi(r.FormValue("scale"))
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if err != nil {
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params.Scale = 3
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@ -146,7 +188,7 @@ func handle(w http.ResponseWriter, r *http.Request) {
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var img image.Image
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if mediaInfo != nil {
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img = &imgutil.LeftRotate{Image: label.GenLabelForHeight(
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font, params.Text, mediaInfo.PrintAreaPins, params.Scale)}
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font.Font, params.Text, mediaInfo.PrintAreaPins, params.Scale)}
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if r.FormValue("print") != "" {
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if err := printer.Print(img); err != nil {
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log.Println("print error:", err)
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@ -154,9 +196,9 @@ func handle(w http.ResponseWriter, r *http.Request) {
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}
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}
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if _, ok := r.Form["img"]; !ok {
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if _, ok := r.Form["render"]; !ok {
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w.Header().Set("Content-Type", "text/html")
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tmpl.Execute(w, ¶ms)
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tmplForm.Execute(w, ¶ms)
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return
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}
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@ -173,24 +215,32 @@ func handle(w http.ResponseWriter, r *http.Request) {
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}
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func main() {
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if len(os.Args) != 3 {
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log.Fatalf("usage: %s ADDRESS BDF-FILE\n", os.Args[0])
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if len(os.Args) < 3 {
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log.Fatalf("usage: %s ADDRESS BDF-FILE...\n", os.Args[0])
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}
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address, bdfPath := os.Args[1], os.Args[2]
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address, bdfPaths := os.Args[1], os.Args[2:]
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for _, path := range bdfPaths {
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fi, err := os.Open(path)
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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", path, 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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var err error
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fi, err := os.Open(bdfPath)
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if 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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font, err = bdf.NewFromBDF(fi)
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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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if err != nil {
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log.Fatalln(err)
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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 = append(fonts, &fontItem{Path: path, Font: font, Preview: img})
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}
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log.Println("starting server")
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