[gui] first steps on playground ;)

gui/.gitignore

@@ -0,0 +1 @@
+gui

gui/main.go

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+package main
+
+import (
+  "fmt"
+	"fyne.io/fyne/v2/app"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/widget"
+  "github.com/jnovack/flag"
+  log "github.com/sirupsen/logrus"
+  "os"
+)
+
+var password  string
+var trx       int
+var trace     bool
+var uri       string
+var trxname   string
+var ant1      string
+var ant2      string
+var ant3      string
+
+func usage() {
+    fmt.Printf("Usage of %s:\n", os.Args[0])
+    flag.PrintDefaults()
+}
+
+func init() {
+  flag.StringVar(&password, "password", "", "your password")
+  flag.StringVar(&uri, "uri", "http://http-exporter", "uri to your http-exporter")
+  flag.IntVar(&trx, "trx", -1, "connected trx port on s.a.m.")
+  flag.BoolVar(&trace, "trace", false, "log almost everything")
+  flag.Parse()
+  if password == "" || uri == "" || trx == -1 {
+    usage()
+    os.Exit(1)
+  }
+  if trace {
+    log.SetLevel(log.TraceLevel)
+    log.Info("trace logging enabled")
+  } else {
+    log.Info("normal logging enabled")
+  }
+
+  // FIXME
+  log.Info("[fake] getting name from s.a.m. server..")
+  trxname = "KX3"
+  ant1 = "HF-P1 40m"
+  ant2 = "GP 20/15/10m"
+  ant3 = "2m Eggbeater"
+}
+
+func main() {
+	a := app.New()
+	w := a.NewWindow("Antenna Switcher")
+
+	hello := widget.NewLabel("just started..")
+	w.SetContent(container.NewVBox(
+		hello,
+		widget.NewButton(ant1, func() {
+			hello.SetText(fmt.Sprintf("%s  : %s", trxname, ant1))
+		}),
+		widget.NewButton(ant2, func() {
+			hello.SetText(fmt.Sprintf("%s  : %s", trxname, ant2))
+		}),
+		widget.NewButton(ant3, func() {
+			hello.SetText(fmt.Sprintf("%s  : %s", trxname, ant3))
+		}),
+	))
+
+	w.ShowAndRun()
+}