Refactoring

log.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	"fyne.io/fyne/v2/widget"
+)
+
+type Logger struct {
+	logText *widget.Entry
+	logBuffer []string
+	logMaxLines int
+}
+
+var globalLogger *Logger;
+
+func InitLogger(text *widget.Entry, maxLines int) {
+	globalLogger = &Logger{
+		logText: text,
+		logMaxLines: logMaxLines,
+	}
+}
+
+func Log(line string) {
+	if globalLogger == nil {
+		fmt.Println("Global Logger is nil")
+		return
+	}
+
+	globalLogger.log(line)
+}
+
+func (l *Logger) log(line string) {
+	l.logBuffer = append(l.logBuffer, line)
+	if len(l.logBuffer) > l.logMaxLines {
+		l.logBuffer = l.logBuffer[1:]
+	}
+	l.logText.SetText(strings.Join(l.logBuffer, "\n"))
+}