// Sets cur_iter pointing to tree_store node corresponding to current file.
// Requires properly set cur_file.
func tree_view_set_cur_iter(mark bool) {
	if "" == cur_file {
		return
	}
	var parent gtk.GtkTreeIter
	name := cur_file
	tree_model.GetIterFirst(&cur_iter)
	for {
		var val glib.GValue
		tree_model.GetValue(&cur_iter, 0, &val)
		whole_string := val.GetString()
		cur_str := whole_string[1:]
		pos := slashed_prefix(name, cur_str)
		if pos > 0 {
			if mark {
				tree_store.Set(&cur_iter, strings.ToUpper(whole_string[:1])+cur_str)
			} else {
				tree_store.Set(&cur_iter, strings.ToLower(whole_string[:1])+cur_str)
			}
			if pos == len(name) {
				break
			}
			parent.Assign(&cur_iter)
			tree_model.IterChildren(&cur_iter, &parent)
			name = name[pos:]
		} else {
			tree_model.IterNext(&cur_iter)
		}
	}
}

// Sets cur_iter pointing to tree_store node corresponding to current file.
// Requires properly set cur_file. As a side effect it also assigns correct
// capitalization for first letters of strings kept in nodes according to @mark
// which denotes if current file is active or not.
func tree_view_set_cur_iter(mark bool) {
	if "" == cur_file {
		return
	}
	var parent gtk.TreeIter
	cur_file_suffix := cur_file
	tree_model.GetIterFirst(&cur_iter)
	for {
		var gval glib.GValue
		tree_model.GetValue(&cur_iter, 0, &gval)
		gval_string := gval.GetString()
		icon := gval_string[0]
		node_path := gval_string[1:]
		if pos := slashed_prefix(cur_file_suffix, node_path); pos > 0 {
			if mark {
				tree_store.Set(&cur_iter, strings.ToUpper(string(icon))+node_path)
			} else {
				tree_store.Set(&cur_iter, strings.ToLower(string(icon))+node_path)
			}
			if pos == len(cur_file_suffix) {
				break
			}
			parent.Assign(&cur_iter)
			tree_model.IterChildren(&cur_iter, &parent)
			cur_file_suffix = cur_file_suffix[pos:]
		} else {
			tree_model.IterNext(&cur_iter)
		}
	}
}

func tree_view_get_selected_path(tree_view *gtk.GtkTreeView, tree_model *gtk.GtkTreeModel, col int, shift bool) string {
	var path *gtk.GtkTreePath
	var column *gtk.GtkTreeViewColumn
	tree_view.GetCursor(&path, &column)
	if nil == path.TreePath {
		return ""
	}
	var iter gtk.GtkTreeIter
	tree_model.GetIterFromString(&iter, path.String())
	var ans string
	ans = ""
	for {
		var val glib.GValue
		var next gtk.GtkTreeIter
		tree_model.GetValue(&iter, col, &val)
		if shift {
			ans = val.GetString()[1:] + ans
		} else {
			ans = val.GetString() + ans
		}
		if false == tree_model.IterParent(&next, &iter) {
			break
		}
		iter.Assign(&next)
	}
	return ans
}

func refresh_title() {
	if "" == cur_file {
		main_window.SetTitle("*")
		return
	}
	var icon byte
	if source_buf.GetModified() {
		main_window.SetTitle("* " + cur_file)
		icon = 'C'
	} else {
		main_window.SetTitle(cur_file)
		icon = 'B'
	}
	var val glib.GValue
	tree_model.GetValue(&cur_iter, 0, &val)
	tree_store.Set(&cur_iter, string(icon)+val.GetString()[1:])
}

func (g *Gui) buildList(vbox *gtk.VBox) {
	frame := gtk.NewFrame("Device List")
	framebox := gtk.NewVBox(false, 1)
	frame.Add(framebox)
	vbox.Add(frame)
	g.Status = gtk.NewStatusbar()
	vbox.PackStart(g.Status, false, false, 0)
	g.Store = gtk.NewListStore(glib.G_TYPE_STRING, glib.G_TYPE_STRING)
	treeview := gtk.NewTreeView()
	framebox.Add(treeview)
	treeview.SetModel(g.Store)
	treeview.AppendColumn(gtk.NewTreeViewColumnWithAttributes("Device", gtk.NewCellRendererText(), "text", 0))
	treeview.AppendColumn(gtk.NewTreeViewColumnWithAttributes("Name", gtk.NewCellRendererText(), "text", 1))
	treeview.GetSelection().SetMode(gtk.SELECTION_SINGLE)
	controls := gtk.NewHBox(true, 0)
	g.Start = gtk.NewButtonWithLabel("Start Sync")
	g.Start.Clicked(func() {
		var iter gtk.TreeIter
		var device glib.GValue
		selection := treeview.GetSelection()
		if selection.CountSelectedRows() > 0 {
			selection.GetSelected(&iter)
			g.Store.GetValue(&iter, 0, &device)
			MainGui.notify("Start Writing On: " + device.GetString())
			doWrite(device.GetString())
		} else {
			MainGui.notify("No Active Selection")
		}
	})
	controls.Add(g.Start)
	g.Recheck = gtk.NewButtonWithLabel("Rescan")
	g.Recheck.Clicked(func() {
		devices := SearchValid()
		MainGui.Store.Clear()
		for _, x := range devices {
			MainGui.appendItem("/dev/hidraw"+strconv.FormatUint(x.SeqNum(), 10), x.SysAttrValue("product"))
		}
		MainGui.notify("Scanning Done")
	})
	controls.Add(g.Recheck)
	framebox.PackStart(controls, false, false, 0)
}