Beispiel #1
0
// Color picker uses the customAdapter for driving a list
func colorPicker(theme gxui.Theme) gxui.Control {
	layout := theme.CreateLinearLayout()
	layout.SetDirection(gxui.TopToBottom)

	label0 := theme.CreateLabel()
	label0.SetText("Color palette:")
	layout.AddChild(label0)

	adapter := &customAdapter{}

	list := theme.CreateList()
	list.SetAdapter(adapter)
	list.SetOrientation(gxui.Horizontal)
	layout.AddChild(list)

	label1 := theme.CreateLabel()
	label1.SetMargin(math.Spacing{T: 30})
	label1.SetText("Selected color:")
	layout.AddChild(label1)

	selected := theme.CreateImage()
	selected.SetExplicitSize(math.Size{W: 32, H: 32})
	layout.AddChild(selected)

	list.OnSelectionChanged(func(item gxui.AdapterItem) {
		if item != nil {
			control := list.ItemControl(item)
			selected.SetBackgroundBrush(control.(gxui.Image).BackgroundBrush())
		}
	})

	return layout
}
Beispiel #2
0
func (l *DropDownList) Init(outer DropDownListOuter, theme gxui.Theme) {
	l.outer = outer
	l.Container.Init(outer, theme)
	l.BackgroundBorderPainter.Init(outer)
	l.Focusable.Init(outer)

	l.theme = theme
	l.list = theme.CreateList()
	l.list.OnSelectionChanged(func(item gxui.AdapterItem) {
		l.outer.RemoveAll()
		adapter := l.list.Adapter()
		if item != nil && adapter != nil {
			l.selected = l.AddChild(adapter.Create(l.theme, adapter.ItemIndex(item)))
		} else {
			l.selected = nil
		}
		l.Relayout()
	})
	l.list.OnItemClicked(func(gxui.MouseEvent, gxui.AdapterItem) {
		l.HideList()
	})
	l.list.OnKeyPress(func(ev gxui.KeyboardEvent) {
		switch ev.Key {
		case gxui.KeyEnter, gxui.KeyEscape:
			l.HideList()
		}
	})
	l.list.OnLostFocus(l.HideList)
	l.OnDetach(l.HideList)
	l.SetMouseEventTarget(true)

	// Interface compliance test
	_ = gxui.DropDownList(l)
}
Beispiel #3
0
// Number picker uses the gxui.DefaultAdapter for driving a list
func numberPicker(theme gxui.Theme, overlay gxui.BubbleOverlay) gxui.Control {
	items := []string{
		"zero", "one", "two", "three", "four", "five",
		"six", "seven", "eight", "nine", "ten",
		"eleven", "twelve", "thirteen", "fourteen", "fifteen",
		"sixteen", "seventeen", "eighteen", "nineteen", "twenty",
	}

	adapter := gxui.CreateDefaultAdapter()
	adapter.SetItems(items)

	layout := theme.CreateLinearLayout()
	layout.SetDirection(gxui.TopToBottom)

	label0 := theme.CreateLabel()
	label0.SetText("Numbers:")
	layout.AddChild(label0)

	dropList := theme.CreateDropDownList()
	dropList.SetAdapter(adapter)
	dropList.SetBubbleOverlay(overlay)
	layout.AddChild(dropList)

	list := theme.CreateList()
	list.SetAdapter(adapter)
	list.SetOrientation(gxui.Vertical)
	layout.AddChild(list)

	label1 := theme.CreateLabel()
	label1.SetMargin(math.Spacing{T: 30})
	label1.SetText("Selected number:")
	layout.AddChild(label1)

	selected := theme.CreateLabel()
	layout.AddChild(selected)

	dropList.OnSelectionChanged(func(item gxui.AdapterItem) {
		if list.Selected() != item {
			list.Select(item)
		}
	})

	list.OnSelectionChanged(func(item gxui.AdapterItem) {
		if dropList.Selected() != item {
			dropList.Select(item)
		}
		selected.SetText(fmt.Sprintf("%s - %d", item, adapter.ItemIndex(item)))
	})

	return layout
}