Rewrite itgui and add new screenshots

cmd/itgui/progress.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"fmt"
+	"image/color"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/widget"
+)
+
+type progress struct {
+	lbl *widget.Label
+	pb  *widget.ProgressBar
+	*widget.PopUp
+}
+
+func newProgress(w fyne.Window) progress {
+	out := progress{}
+
+	// Create label to show how many bytes transfered and center it
+	out.lbl = widget.NewLabel("0 / 0 B")
+	out.lbl.Alignment = fyne.TextAlignCenter
+
+	// Create new progress bar
+	out.pb = widget.NewProgressBar()
+
+	// Create new rectangle to set the size of the popup
+	sizeRect := canvas.NewRectangle(color.Transparent)
+	sizeRect.SetMinSize(fyne.NewSize(300, 50))
+	
+	// Create vbox for label and progress bar
+	l := container.NewVBox(out.lbl, out.pb)
+	// Create popup
+	out.PopUp = widget.NewModalPopUp(container.NewMax(l, sizeRect), w.Canvas())
+
+	return out
+}
+
+func (p progress) SetTotal(v float64) {
+	p.pb.Max = v
+	p.pb.Refresh()
+	p.lbl.SetText(fmt.Sprintf("%.0f / %.0f B", p.pb.Value, v))
+}
+
+func (p progress) SetValue(v float64) {
+	p.pb.SetValue(v)
+	p.lbl.SetText(fmt.Sprintf("%.0f / %.0f B", v, p.pb.Max))
+}