func (l *DropDownList) HideList() {
if l.listShowing {
l.listShowing = false
l.overlay.Hide()
if l.Attached() {
gxui.SetFocus(l)
}
if l.onHideList != nil {
l.onHideList.Fire()
}
}
}
func (l *DropDownList) ShowList() bool {
if l.listShowing || l.overlay == nil {
return false
}
l.listShowing = true
s := l.Size()
at := math.Point{X: s.W / 2, Y: s.H}
l.overlay.Show(l.list, gxui.TransformCoordinate(at, l.outer, l.overlay))
gxui.SetFocus(l.list)
if l.onShowList != nil {
l.onShowList.Fire()
}
return true
}
// Create implements gxui.TreeNode.
func (n *node) Create(theme gxui.Theme) gxui.Control {
layout := theme.CreateLinearLayout()
layout.SetDirection(gxui.LeftToRight)
label := theme.CreateLabel()
label.SetText(n.name)
textbox := theme.CreateTextBox()
textbox.SetText(n.name)
textbox.SetPadding(math.ZeroSpacing)
textbox.SetMargin(math.ZeroSpacing)
addButton := theme.CreateButton()
addButton.SetText("+")
addButton.OnClick(func(gxui.MouseEvent) { n.add("<new>") })
edit := func() {
layout.RemoveAll()
layout.AddChild(textbox)
layout.AddChild(addButton)
gxui.SetFocus(textbox)
}
commit := func() {
n.name = textbox.Text()
label.SetText(n.name)
layout.RemoveAll()
layout.AddChild(label)
layout.AddChild(addButton)
}
// When the user clicks the label, replace it with an editable text-box
label.OnClick(func(gxui.MouseEvent) { edit() })
// When the text-box loses focus, replace it with a label again.
textbox.OnLostFocus(commit)
layout.AddChild(label)
layout.AddChild(addButton)
return layout
}